Bump version to 3.5.1

Signed-off-by: Paris Kasidiaris <paris@sourcelair.com>

.github/ISSUE_TEMPLATE.md

@@ -1,11 +0,0 @@
-<!-- Enter your issue description here -->
-
-## Details
-- Browser and browser version: 
-- OS version: 
-- xterm.js version: 
-
-### Steps to reproduce
-
-1. 
-2. 

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,17 @@
+---
+name: Bug report
+about: Create a bug report
+---
+
+<!-- ⚠️ Please search existing issues to avoid creating duplicates. ⚠️ -->
+<!-- Describe the bug here. -->
+
+## Details
+- Browser and browser version: 
+- OS version: 
+- xterm.js version: 
+
+### Steps to reproduce
+
+1. 
+2. 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,7 @@
+---
+name: Feature request
+about: Suggest a feature or enhancement
+---
+
+<!-- ⚠️ Please search existing issues to avoid creating duplicates. ⚠️ -->
+<!-- Describe the enhancement here. -->

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,8 @@
+---
+name: Question
+about: The issue tracker is not for questions. Please ask questions on https://stackoverflow.com/questions/tagged/xtermjs or https://gitter.im/sourcelair/xterm.js.
+---
+
+🛑 The issue tracker is not for questions 🛑
+
+If you have a question, please ask it on https://stackoverflow.com/questions/tagged/xtermjs or https://gitter.im/sourcelair/xterm.js.

.gitignore

@@ -18,7 +18,8 @@ fixtures/typings-test/*.js
 package-lock.json
 
 # Directories needed for code coverage
-/coverage/
+coverage/
+.nyc_output/
 
 # Keep bundled code out of Git
 dist/

.travis.yml

@@ -13,7 +13,7 @@ env:
   matrix:
     - NPM_COMMAND=tsc
     - NPM_COMMAND=lint
-    - NPM_COMMAND=test
+    - NPM_COMMAND=test-coverage
 notifications:
   email: false
 script: npm run $NPM_COMMAND

.vscode/launch.json

@@ -1,23 +0,0 @@
-{
-  "version": "0.2.0",
-  "configurations": [
-    {
-      "type": "node",
-      "request": "launch",
-      "name": "Mocha Tests",
-      "cwd": "${workspaceRoot}",
-      "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/mocha",
-      "windows": {
-        "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/mocha.cmd"
-      },
-      "runtimeArgs": [
-        "--colors",
-        "--recursive",
-        "${workspaceRoot}/lib"
-      ],
-      "sourceMaps": true,
-      "outFiles": [ "${workspaceRoot}/lib/**/*.js" ],
-      "internalConsoleOptions": "openOnSessionStart"
-    }
-  ]
-}

.vscode/settings.json

@@ -1,8 +0,0 @@
-{
-    "search.exclude": {
-        "**/node_modules": true,
-        "**/dist": true,
-        "**/build": true,
-        "**/lib": true
-    }
-}

AUTHORS

@@ -1,5 +1,7 @@
 List of xterm.js contributors. Updated before every release.
 
+7PH <b.raymond@cern.ch>
+7PH <b.raymond@protonmail.com>
 Adrian Labbé <adrilabbelol@gmail.com>
 Aleksandr Andrienko <aandrienko@codenvy.com>
 Aleksandr Andriienko <oandriie@redhat.com>
@@ -19,6 +21,7 @@ Austin Robertson <austinrobertson@gmail.com>
 ayapi <colors.aya@gmail.com>
 Ben Hall <ben@benhall.me.uk>
 Benjamin Fischer <benjamin.fischer@rwth-aachen.de>
+Benjamin Raymond <b.raymond@cern.ch>
 Benjamin Woodruff <github@benjam.info>
 Bill Church <billchurch@users.noreply.github.com>
 Bob Reid <bobreid@Bobs-MacBook-Pro.local>
@@ -64,6 +67,7 @@ Joao Moreno <jomo@microsoft.com>
 Joao Moreno <mail@joaomoreno.com>
 Johannes Zellner <johannes@nebulon.de>
 Jon Austin <jon.i.austin@gmail.com>
+Jon Kohler <jon@nutanix.com>
 Jon Masters <jon.masters@sky.com>
 Jörg Breitbart <jerch@rockborn.de>
 jpoth <poth.john@gmail.com>
@@ -76,6 +80,7 @@ Linus Unnebäck <linus@folkdatorn.se>
 Luca <LucaT1@users.noreply.github.com>
 Lucian Buzzo <lucian.buzzo@gmail.com>
 Lukas Drgon <lukas.drgon@gmail.com>
+Lukas Geiger <lukas.geiger94@gmail.com>
 Maël Nison <nison.mael@gmail.com>
 Marc Dumais <marc.dumais@ericsson.com>
 Marek Libra <mlibra@redhat.com>
@@ -88,6 +93,7 @@ Matthew James <matthew.d.james87@gmail.com>
 Michael Irwin <mikesir87@gmail.com>
 Mikko Karvonen <mikko.karvonen@arm.com>
 mofux <t.zilz@mofux.org>
+muji <muji@tmpfs.org>
 Nicolas Ramz <nicolas.ramz@gmail.com>
 npezza93 <npezza93@gmail.com>
 Oleksandr Andriienko <oandriie@redhat.com>
@@ -96,6 +102,7 @@ Paris Kasidiaris <paris@sourcelair.com>
 Peng Xiao <pengxiao@outlook.com>
 Peter Baumgarten <me@peterbaumgarten.com>
 Philip Olson <philip.olson@protonmail.ch>
+PowerHat <31401273+7PH@users.noreply.github.com>
 pro-src <34285059+pro-src@users.noreply.github.com>
 pro-src <rodneyd.teal@gmail.com>
 Rick Baker <rick@ricktbaker.com>
@@ -108,6 +115,7 @@ Shuanglei Tao <tsl0922@gmail.com>
 sitzmar <sitzmar@gmail.com>
 Steven Silvester <steven.silvester@ieee.org>
 stuicey <stuicey@users.noreply.github.com>
+Sven-Hendrik Haase <svenstaro@gmail.com>
 t-amqi <umberos@gmail.com>
 Thanasis Daglis <thanasis@sourcelair.com>
 thomas <thomas@kreativkonzentrat.de>
@@ -115,6 +123,8 @@ Thomas Zilz <t.zilz@mofux.org>
 Tine Jozelj <tine.jozelj@outlook.com>
 Tyler Jewell <tjewell@codenvy.com>
 Vincent Woo <me@vincentwoo.com>
+Viraj Sinha <virajosinha@gmail.com>
 yutaka <shigure@refy.net>
 YuviPanda <yuvipanda@gmail.com>
 ZHAO Xudong <zxdong@gmail.com>
+赵雪珂 <zhaoxueke@onething.net>

CODE_OF_CONDUCT.md

@@ -0,0 +1,73 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+education, socio-economic status, nationality, personal appearance, race,
+religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting [@Tyriar](https://twitter.com/Tyriar) or [@pariskasid](https://twitter.com/pariskasid) on Twitter. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org

README.md

@@ -1,6 +1,6 @@
 # [![xterm.js logo](logo-full.png)](https://xtermjs.org)
 
-[![xterm.js build status](https://api.travis-ci.org/xtermjs/xterm.js.svg)](https://travis-ci.org/xtermjs/xterm.js) [![Coverage Status](https://coveralls.io/repos/github/xtermjs/xterm.js/badge.svg?branch=master)](https://coveralls.io/github/xtermjs/xterm.js?branch=master) [![Gitter](https://badges.gitter.im/sourcelair/xterm.js.svg)](https://gitter.im/sourcelair/xterm.js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/xterm/badge?style=rounded)](https://www.jsdelivr.com/package/npm/xterm)
+[![Travis CI build status](https://api.travis-ci.org/xtermjs/xterm.js.svg)](https://travis-ci.org/xtermjs/xterm.js) [![VSTS Build status](https://xtermjs.visualstudio.com/_apis/public/build/definitions/3e323cf7-5760-460d-af64-ee5675baf366/1/badge)](https://xtermjs.visualstudio.com/xterm.js/_build/index?definitionId=1) [![Coverage Status](https://coveralls.io/repos/github/xtermjs/xterm.js/badge.svg?branch=master)](https://coveralls.io/github/xtermjs/xterm.js?branch=master) [![Gitter](https://badges.gitter.im/sourcelair/xterm.js.svg)](https://gitter.im/sourcelair/xterm.js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/xterm/badge?style=rounded)](https://www.jsdelivr.com/package/npm/xterm)
 
 Xterm.js is a terminal front-end component written in JavaScript that works in the browser.
 
@@ -39,7 +39,7 @@ To start using xterm.js on your browser, add the `xterm.js` and `xterm.css` to t
     <body>
       <div id="terminal"></div>
       <script>
-      	var term = new Terminal();
+        var term = new Terminal();
         term.open(document.getElementById('terminal'));
         term.write('Hello from \x1B[1;3;31mxterm.js\x1B[0m $ ')
       </script>
@@ -149,8 +149,12 @@ computational environment for Jupyter, supporting interactive data science and s
 - [**Fluent Terminal**](https://github.com/felixse/FluentTerminal): A terminal emulator based on UWP and web technologies.
 - [**Hyper**](https://hyper.is): A terminal built on web technologies
 - [**Diag**](https://diag.ai): A better way to troubleshoot problems faster. Capture, share and reapply troubleshooting knowledge so you can focus on solving problems that matter.
+- [**GoTTY**](https://github.com/yudai/gotty): A simple command line tool that shares your terminal as a web application based on xterm.js.
+- [**genact**](https://github.com/svenstaro/genact): A nonsense activity generator.
+- [**cPanel & WHM**](https://cpanel.com): The hosting platform of choice.
+- [**Nutanix**](https://github.com/nutanix): Nutanix Enterprise Cloud uses xterm in the webssh functionality within Nutanix Calm, and is also looking to move our old noserial (termjs) functionality to xterm.js
 
-Do you use xterm.js in your application as well? Please [open a Pull Request](https://github.com/sourcelair/xterm.js/pulls) to include it here. We would love to have it in our list.
+Do you use xterm.js in your application as well? Please [open a Pull Request](https://github.com/sourcelair/xterm.js/pulls) to include it here. We would love to have it in our list. Note: Please add any new contributions to the end of the list only.
 
 ## Demo
 
@@ -223,6 +227,16 @@ Then open http://127.0.0.1:3000 in a web browser to access the demo.
 
 *Note: Do not use ConEmu, as it seems to break the demo for some reason.*
 
+## Testing
+
+Tests are run using the following npm scripts:
+
+- `npm test`: This will run both unit tests and the linter
+- `npm run test-suite <file>`: This will run all tests within a particular file, &lt;file&gt; is the test file name excluding the extension (eg. "Linkifier.test")
+- `npm run test-debug`: This will run unit tests with `--inspect-brk`, this can then be automatically debugged using [VS Code auto attach](https://code.visualstudio.com/docs/nodejs/nodejs-debugging#_auto-attach-feature) or manually attached to by a debugger
+- `npm run test-coverage`: This will run all unit tests and produce a coverage report
+- `npm run lint`: This will run the linter only
+
 ## Releases
 
 Xterm.js follows a monthly release cycle roughly.
@@ -237,12 +251,12 @@ To contribute either code, documentation or issues to xterm.js please read the [
 
 ### Code structure
 
-`src/` is roughly split up into areas of functionality such as `renderer/` that handles all rendering and `utils/` which provides general utility functions. The `shared/` folder contains code that can be used from either the main thread or a web worker thread, all code inside a `shared/` folder should only ever import other code from a `shared/` folder to minimize the amount of code run what launching a web worker.
+`src/` is roughly split up into areas of functionality such as `renderer/` that handles all rendering and `utils/` which provides general utility functions. The `shared/` folder contains code that can be used from either the main thread or a web worker thread, all code inside a `shared/` folder should only ever import other code from a `shared/` folder to minimize the amount of code ran when launching a web worker.
 
 ## License Agreement
 
 If you contribute code to this project, you are implicitly allowing your code to be distributed under the MIT license. You are also implicitly verifying that all code is your original work.
 
-Copyright (c) 2017-2018, [The xterm.js authors](https://github.com/xtermjs/xterm.js/graphs/contributors) (MIT License)
-Copyright (c) 2014-2017, SourceLair, Private Company ([www.sourcelair.com](https://www.sourcelair.com/home)) (MIT License)
+Copyright (c) 2017-2018, [The xterm.js authors](https://github.com/xtermjs/xterm.js/graphs/contributors) (MIT License)<br>
+Copyright (c) 2014-2017, SourceLair, Private Company ([www.sourcelair.com](https://www.sourcelair.com/home)) (MIT License)<br>
 Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)

demo/index.html

@@ -1,95 +1,38 @@
 <!doctype html>
 <html>
-    <head>
-        <title>xterm.js demo</title>
-        <link rel="stylesheet" href="/build/xterm.css" />
-        <link rel="stylesheet" href="/build/addons/fullscreen/fullscreen.css" />
-        <link rel="stylesheet" href="style.css" />
-      	<script src="https://cdnjs.cloudflare.com/ajax/libs/es6-promise/4.1.1/es6-promise.auto.min.js"></script>
-      	<script src="https://cdnjs.cloudflare.com/ajax/libs/fetch/1.0.0/fetch.min.js"></script>
-    </head>
-    <body>
-        <h1 style="color: #2D2E2C">xterm.js: A terminal for the <em style="color: #5DA5D5">web</em></h1>
-        <div id="terminal-container"></div>
-        <div>
-          <h2>Actions</h2>
-          <p>
-            <label>Find next <input id="find-next"/></label>
-            <label>Find previous <input id="find-previous"/></label>
-          </p>
-        </div>
-        <div>
-          <h2>Options</h2>
-          <p>
-            <label><input type="checkbox" id="option-cursor-blink"> cursorBlink</label>
-          </p>
-          <p>
-            <label><input type="checkbox" id="option-mac-option-is-meta"> macOptionIsMeta</label>
-          </p>
-          <p>
-            <label><input type="checkbox" id="option-transparency"> transparency</label>
-          </p>
-          <p>
-            <label>
-              cursorStyle
-              <select id="option-cursor-style">
-                <option value="block">block</option>
-                <option value="underline">underline</option>
-                <option value="bar">bar</option>
-              </select>
-            </label>
-          </p>
-          <p>
-            <label>
-              bellStyle
-              <select id="option-bell-style">
-                <option value="">none</option>
-                <option value="sound">sound</option>
-                <option value="visual">visual</option>
-                <option value="both">both</option>
-              </select>
-            </label>
-          </p>
-          <p>
-            <label>scrollback <input type="number" id="option-scrollback" value="1000" /></label>
-          </p>
-          <p>
-            <label>tabStopWidth <input type="number" id="option-tabstopwidth" value="8" /></label>
-          </p>
-          <p>
-            <label>
-              experimentalCharAtlas
-              <select id="option-experimental-char-atlas">
-                <option value="static" selected>static</option>
-                <option value="dynamic">dynamic</option>
-                <option value="none">none</option>
-              </select>
-            </label>
-          </p>
-          <div>
-          	<h3>Size</h3>
-            <div>
-              <div style="display: inline-block; margin-right: 16px;">
-                <label for="cols">Columns</label>
-                <input type="number" id="cols" />
-              </div>
-              <div style="display: inline-block; margin-right: 16px;">
-                <label for="rows">Rows</label>
-                <input type="number" id="rows" />
-              </div>
-              <div style="display: inline-block; margin-right: 16px;">
-                <label for="padding">Padding</label>
-                <input type="number" id="padding" />
-              </div>
-            </div>
-          </div>
-          <div>
-            <h3>Accessibility</h3>
-            <p>
-              <label><input type="checkbox" id="option-screen-reader-mode"> screenReaderMode</label>
-            </p>
-        </div>
-        <p><strong>Attention:</strong> The demo is a barebones implementation and is designed for the development and evaluation of xterm.js only. Exposing the demo to the public as is would introduce security risks for the host.</p>
-        <script src="dist/bundle.js" defer ></script>
-    </body>
+  <head>
+    <title>xterm.js demo</title>
+    <link rel="stylesheet" href="/build/xterm.css" />
+    <link rel="stylesheet" href="/build/addons/fullscreen/fullscreen.css" />
+    <link rel="stylesheet" href="style.css" />
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/es6-promise/4.1.1/es6-promise.auto.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/fetch/1.0.0/fetch.min.js"></script>
+  </head>
+  <body>
+    <h1 style="color: #2D2E2C">xterm.js: A terminal for the <em style="color: #5DA5D5">web</em></h1>
+    <div id="terminal-container"></div>
+    <div>
+      <h3>Actions</h3>
+      <p>
+        <label>Find next <input id="find-next"/></label>
+        <label>Find previous <input id="find-previous"/></label>
+      </p>
+    </div>
+    <div>
+      <h3>Options</h3>
+      <p>These options can be set in the <code>Terminal</code> constructor or using the <code>Terminal.setOption</code> function.</p>
+      <div id="options-container"></div>
+    </div>
+    <div>
+      <h3>Style</h3>
+      <div style="display: inline-block; margin-right: 16px;">
+        <label for="padding">Padding</label>
+        <input type="number" id="padding" />
+      </div>
+    </div>
+    <hr/>
+    <p><strong>Attention:</strong> The demo is a barebones implementation and is designed for the development and evaluation of xterm.js only. Exposing the demo to the public as is would introduce security risks for the host.</p>
+    <button id="dispose" title="This is used to testing memory leaks">Dispose terminal</button>
+    <script src="dist/bundle.js" defer ></script>
+  </body>
 </html>

demo/main.js

@@ -26,97 +26,38 @@ var terminalContainer = document.getElementById('terminal-container'),
       findNext: document.querySelector('#find-next'),
       findPrevious: document.querySelector('#find-previous')
     },
-    optionElements = {
-      cursorBlink: document.querySelector('#option-cursor-blink'),
-      cursorStyle: document.querySelector('#option-cursor-style'),
-      macOptionIsMeta: document.querySelector('#option-mac-option-is-meta'),
-      scrollback: document.querySelector('#option-scrollback'),
-      transparency: document.querySelector('#option-transparency'),
-      tabstopwidth: document.querySelector('#option-tabstopwidth'),
-      experimentalCharAtlas: document.querySelector('#option-experimental-char-atlas'),
-      bellStyle: document.querySelector('#option-bell-style'),
-      screenReaderMode: document.querySelector('#option-screen-reader-mode')
-    },
-    colsElement = document.getElementById('cols'),
-    rowsElement = document.getElementById('rows'),
     paddingElement = document.getElementById('padding');
 
-function setTerminalSize() {
-  var cols = parseInt(colsElement.value, 10);
-  var rows = parseInt(rowsElement.value, 10);
-  var width = (cols * term.renderer.dimensions.actualCellWidth + term.viewport.scrollBarWidth).toString() + 'px';
-  var height = (rows * term.renderer.dimensions.actualCellHeight).toString() + 'px';
-  terminalContainer.style.width = width;
-  terminalContainer.style.height = height;
-  term.fit();
-}
-
 function setPadding() {
   term.element.style.padding = parseInt(paddingElement.value, 10).toString() + 'px';
   term.fit();
 }
 
-colsElement.addEventListener('change', setTerminalSize);
-rowsElement.addEventListener('change', setTerminalSize);
-paddingElement.addEventListener('change', setPadding);
-
-actionElements.findNext.addEventListener('keypress', function (e) {
-  if (e.key === "Enter") {
-    e.preventDefault();
-    term.findNext(actionElements.findNext.value);
-  }
-});
-actionElements.findPrevious.addEventListener('keypress', function (e) {
-  if (e.key === "Enter") {
-    e.preventDefault();
-    term.findPrevious(actionElements.findPrevious.value);
-  }
-});
-
-optionElements.cursorBlink.addEventListener('change', function () {
-  term.setOption('cursorBlink', optionElements.cursorBlink.checked);
-});
-optionElements.macOptionIsMeta.addEventListener('change', function () {
-  term.setOption('macOptionIsMeta', optionElements.macOptionIsMeta.checked);
-});
-optionElements.transparency.addEventListener('change', function () {
-  var checked = optionElements.transparency.checked;
-  term.setOption('allowTransparency', checked);
-  term.setOption('theme', checked ? {background: 'rgba(0, 0, 0, .5)'} : {});
-});
-optionElements.cursorStyle.addEventListener('change', function () {
-  term.setOption('cursorStyle', optionElements.cursorStyle.value);
-});
-optionElements.bellStyle.addEventListener('change', function () {
-  term.setOption('bellStyle', optionElements.bellStyle.value);
-});
-optionElements.scrollback.addEventListener('change', function () {
-  term.setOption('scrollback', parseInt(optionElements.scrollback.value, 10));
-});
-optionElements.tabstopwidth.addEventListener('change', function () {
-  term.setOption('tabStopWidth', parseInt(optionElements.tabstopwidth.value, 10));
-});
-optionElements.experimentalCharAtlas.addEventListener('change', function () {
-  term.setOption('experimentalCharAtlas', optionElements.experimentalCharAtlas.value);
-});
-optionElements.screenReaderMode.addEventListener('change', function () {
-  term.setOption('screenReaderMode', optionElements.screenReaderMode.checked);
-});
-
 createTerminal();
 
+const disposeRecreateButtonHandler = () => {
+  // If the terminal exists dispose of it, otherwise recreate it
+  if (term) {
+    term.dispose();
+    term = null;
+    window.term = null;
+    socket = null;
+    document.getElementById('dispose').innerHTML = 'Recreate Terminal';
+  }
+  else {
+    createTerminal();
+    document.getElementById('dispose').innerHTML = 'Dispose terminal';
+  }
+};
+
+document.getElementById('dispose').addEventListener('click', disposeRecreateButtonHandler);
+
 function createTerminal() {
   // Clean terminal
   while (terminalContainer.children.length) {
     terminalContainer.removeChild(terminalContainer.children[0]);
   }
-  term = new Terminal({
-    macOptionIsMeta: optionElements.macOptionIsMeta.enabled,
-    cursorBlink: optionElements.cursorBlink.checked,
-    scrollback: parseInt(optionElements.scrollback.value, 10),
-    tabStopWidth: parseInt(optionElements.tabstopwidth.value, 10),
-    screenReaderMode: optionElements.screenReaderMode.checked
-  });
+  term = new Terminal({});
   window.term = term;  // Expose `term` to window for debugging purposes
   term.on('resize', function (size) {
     if (!pid) {
@@ -137,14 +78,30 @@ function createTerminal() {
   term.fit();
   term.focus();
 
+  addDomListener(paddingElement, 'change', setPadding);
+
+  addDomListener(actionElements.findNext, 'keypress', function (e) {
+    if (e.key === "Enter") {
+      e.preventDefault();
+      term.findNext(actionElements.findNext.value);
+    }
+  });
+  addDomListener(actionElements.findPrevious, 'keypress', function (e) {
+    if (e.key === "Enter") {
+      e.preventDefault();
+      term.findPrevious(actionElements.findPrevious.value);
+    }
+  });
+
   // fit is called within a setTimeout, cols and rows need this.
   setTimeout(function () {
-    colsElement.value = term.cols;
-    rowsElement.value = term.rows;
+    initOptions(term);
+    document.getElementById(`opt-cols`).value = term.cols;
+    document.getElementById(`opt-rows`).value = term.rows;
     paddingElement.value = 0;
 
     // Set terminal size again to set the specific dimensions on the demo
-    setTerminalSize();
+    updateTerminalSize();
 
     fetch('/terminals?cols=' + term.cols + '&rows=' + term.rows, {method: 'POST'}).then(function (res) {
 
@@ -184,7 +141,7 @@ function runFakeTerminal() {
   term.writeln('');
   term.prompt();
 
-  term.on('key', function (key, ev) {
+  term._core.register(term.addDisposableListener('key', function (key, ev) {
     var printable = (
       !ev.altKey && !ev.altGraphKey && !ev.ctrlKey && !ev.metaKey
     );
@@ -199,9 +156,116 @@ function runFakeTerminal() {
     } else if (printable) {
       term.write(key);
     }
+  }));
+
+  term._core.register(term.addDisposableListener('paste', function (data, ev) {
+    term.write(data);
+  }));
+}
+
+function initOptions(term) {
+  var blacklistedOptions = [
+    // Internal only options
+    'cancelEvents',
+    'convertEol',
+    'debug',
+    'handler',
+    'screenKeys',
+    'termName',
+    'useFlowControl',
+    // Complex option
+    'theme',
+    // Only in constructor
+    'rendererType'
+  ];
+  var stringOptions = {
+    bellSound: null,
+    bellStyle: ['none', 'sound'],
+    cursorStyle: ['block', 'underline', 'bar'],
+    experimentalCharAtlas: ['none', 'static', 'dynamic'],
+    fontFamily: null,
+    fontWeight: ['normal', 'bold', '100', '200', '300', '400', '500', '600', '700', '800', '900'],
+    fontWeightBold: ['normal', 'bold', '100', '200', '300', '400', '500', '600', '700', '800', '900']
+  };
+  var options = Object.keys(term._core.options);
+  var booleanOptions = [];
+  var numberOptions = [];
+  options.filter(o => blacklistedOptions.indexOf(o) === -1).forEach(o => {
+    switch (typeof term.getOption(o)) {
+      case 'boolean':
+        booleanOptions.push(o);
+        break;
+      case 'number':
+        numberOptions.push(o);
+        break;
+      default:
+        if (Object.keys(stringOptions).indexOf(o) === -1) {
+          console.warn(`Unrecognized option: "${o}"`);
+        }
+    }
   });
 
-  term.on('paste', function (data, ev) {
-    term.write(data);
+  var html = '';
+  html += '<div class="option-group">';
+  booleanOptions.forEach(o => {
+    html += `<div class="option"><label><input id="opt-${o}" type="checkbox" ${term.getOption(o) ? 'checked' : ''}/> ${o}</label></div>`;
+  });
+  html += '</div><div class="option-group">';
+  numberOptions.forEach(o => {
+    html += `<div class="option"><label>${o} <input id="opt-${o}" type="number" value="${term.getOption(o)}"/></label></div>`;
+  });
+  html += '</div><div class="option-group">';
+  Object.keys(stringOptions).forEach(o => {
+    if (stringOptions[o]) {
+      html += `<div class="option"><label>${o} <select id="opt-${o}">${stringOptions[o].map(v => `<option ${term.getOption(o) === v ? 'selected' : ''}>${v}</option>`).join('')}</select></label></div>`;
+    } else {
+      html += `<div class="option"><label>${o} <input id="opt-${o}" type="text" value="${term.getOption(o)}"/></label></div>`
+    }
+  });
+  html += '</div>';
+
+  var container = document.getElementById('options-container');
+  container.innerHTML = html;
+
+  // Attach listeners
+  booleanOptions.forEach(o => {
+    var input = document.getElementById(`opt-${o}`);
+    addDomListener(input, 'change', () => {
+      console.log('change', o, input.checked);
+      term.setOption(o, input.checked);
+    });
+  });
+  numberOptions.forEach(o => {
+    var input = document.getElementById(`opt-${o}`);
+    addDomListener(input, 'change', () => {
+      console.log('change', o, input.value);
+      if (o === 'cols' || o === 'rows') {
+        updateTerminalSize();
+      } else {
+        term.setOption(o, parseInt(input.value, 10));
+      }
+    });
+  });
+  Object.keys(stringOptions).forEach(o => {
+    var input = document.getElementById(`opt-${o}`);
+    addDomListener(input, 'change', () => {
+      console.log('change', o, input.value);
+      term.setOption(o, input.value);
+    });
   });
 }
+
+function addDomListener(element, type, handler) {
+  element.addEventListener(type, handler);
+  term._core.register({ dispose: () => element.removeEventListener(type, handler) });
+}
+
+function updateTerminalSize() {
+  var cols = parseInt(document.getElementById(`opt-cols`).value, 10);
+  var rows = parseInt(document.getElementById(`opt-rows`).value, 10);
+  var width = (cols * term._core.renderer.dimensions.actualCellWidth + term._core.viewport.scrollBarWidth).toString() + 'px';
+  var height = (rows * term._core.renderer.dimensions.actualCellHeight).toString() + 'px';
+  terminalContainer.style.width = width;
+  terminalContainer.style.height = height;
+  term.fit();
+}

demo/style.css

@@ -14,3 +14,19 @@ h1 {
     margin: 0 auto;
     padding: 2px;
 }
+
+p {
+    font-size: 0.9em;
+    font-style: italic
+}
+
+#option-container {
+    display: flex;
+    justify-content: center;
+}
+
+.option-group {
+    display: inline-block;
+    padding-left: 20px;
+    vertical-align: top;
+}

gulpfile.js

@@ -4,11 +4,9 @@
 
 const browserify = require('browserify');
 const buffer = require('vinyl-buffer');
-const coveralls = require('gulp-coveralls');
 const fs = require('fs-extra');
 const gulp = require('gulp');
 const path = require('path');
-const istanbul = require('gulp-istanbul');
 const merge = require('merge-stream');
 const mocha = require('gulp-mocha');
 const sorcery = require('sorcery');
@@ -20,69 +18,37 @@ const webpack = require('webpack-stream');
 
 const buildDir = process.env.BUILD_DIR || 'build';
 const tsProject = ts.createProject('tsconfig.json');
-const srcDir = tsProject.config.compilerOptions.rootDir;
+let srcDir = tsProject.config.compilerOptions.rootDir;
 let outDir = tsProject.config.compilerOptions.outDir;
 
 const addons = fs.readdirSync(`${__dirname}/src/addons`);
 
+const TEST_PATHS = [
+  `${outDir}/*test.js`,
+  `${outDir}/**/*test.js`,
+  `${outDir}/*integration.js`,
+  `${outDir}/**/*integration.js`
+];
+
 // Under some environments like TravisCI, this comes out at absolute which can
 // break the build. This ensures that the outDir is absolute.
 if (path.normalize(outDir).indexOf(__dirname) !== 0) {
   outDir = `${__dirname}/${path.normalize(outDir)}`;
 }
 
-/**
- * Compile TypeScript sources to JavaScript files and create a source map file for each TypeScript
- * file compiled.
- */
-gulp.task('tsc', function () {
-  // Remove the ${outDir}/ directory to prevent confusion if files were deleted in ${srcDir}/
-  fs.emptyDirSync(`${outDir}`);
+gulp.task('css', function() {
+  return gulp.src(`${srcDir}/**/*.css`).pipe(gulp.dest(outDir));
+});
 
-  // Build all TypeScript files (including tests) to ${outDir}/, based on the configuration defined in
-  // `tsconfig.json`.
-  let tsResult = tsProject.src().pipe(sourcemaps.init()).pipe(tsProject());
-  let tsc = merge(
-    tsResult.js.pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''})).pipe(gulp.dest(outDir)),
-    tsResult.dts.pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''})).pipe(gulp.dest(outDir))
-  );
-
-  let addonStreams = addons.map(function(addon) {
-    fs.emptyDirSync(`${outDir}/addons/${addon}`);
-
-    let tsProjectAddon = ts.createProject(`./src/addons/${addon}/tsconfig.json`);
-    let tsResultAddon = tsProjectAddon.src().pipe(sourcemaps.init()).pipe(tsProjectAddon());
-    let tscAddon = merge(
-      tsResultAddon.js
-        .pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''}))
-        .pipe(gulp.dest(`${outDir}/addons/${addon}`)),
-      tsResultAddon.dts
-        .pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''}))
-        .pipe(gulp.dest(`${outDir}/addons/${addon}`))
-    )
-
-    return tscAddon;
-  });
-
-  // Copy all addons from ${srcDir}/ to ${outDir}/
-  let copyAddons = gulp.src([
-    `${srcDir}/addons/**/**`
-  ]).pipe(gulp.dest(`${outDir}/addons`));
-
-  // Copy stylesheets from ${srcDir}/ to ${outDir}/
-  let copyStylesheets = gulp.src(`${srcDir}/**/*.css`).pipe(gulp.dest(outDir));
-
-  // Join all streams into a single array
-  let streams = [tsc].concat(addonStreams).concat([copyAddons, copyStylesheets]);
-
-  return merge.apply(this, streams);
+gulp.task('watch-css', function() {
+  return gulp.watch(`${srcDir}/**/*.css`, ['css']);
 });
 
 /**
  * Bundle JavaScript files produced by the `tsc` task, into a single file named `xterm.js` with
  * Browserify.
  */
-gulp.task('browserify', ['tsc'], function() {
+gulp.task('browserify', function() {
   // Ensure that the build directory exists
   fs.ensureDirSync(buildDir);
 
@@ -108,7 +74,7 @@ gulp.task('browserify', ['tsc'], function() {
   return merge(bundleStream, copyStylesheets);
 });
 
-gulp.task('browserify-addons', ['tsc'], function() {
+gulp.task('browserify-addons', function() {
   const bundles = addons.map((addon) => {
     const addonOptions = {
       basedir: `${buildDir}/addons/${addon}`,
@@ -134,37 +100,22 @@ gulp.task('browserify-addons', ['tsc'], function() {
   return merge(...bundles);
 });
 
-gulp.task('instrument-test', function () {
-  return gulp.src([`${outDir}/**/*.js`])
-    // Covering files
-    .pipe(istanbul())
-    // Force `require` to return covered files
-    .pipe(istanbul.hookRequire());
-});
-
-gulp.task('mocha', ['instrument-test'], function () {
-  return gulp.src([
-    `${outDir}/*test.js`,
-    `${outDir}/**/*test.js`,
-    `${outDir}/*integration.js`,
-    `${outDir}/**/*integration.js`
-  ], {read: false})
+gulp.task('mocha', function () {
+  return gulp.src(TEST_PATHS, {read: false})
       .pipe(mocha())
-      .once('error', () => process.exit(1))
-      .pipe(istanbul.writeReports());
+      .once('error', () => process.exit(1));
 });
 
 /**
- * Run single test file by file name(without file extension). Example of the command:
- * gulp mocha-test --test InputHandler.test
+ * Run single test suite (file) by file name (without file extension). Example of the command:
+ * gulp mocha-suite --test InputHandler.test
  */
-gulp.task('mocha-test', ['instrument-test'], function () {
+gulp.task('mocha-suite', [], function () {
   let testName = util.env.test;
   util.log("Run test by Name: " + testName);
   return gulp.src([`${outDir}/${testName}.js`, `${outDir}/**/${testName}.js`], {read: false})
          .pipe(mocha())
-         .once('error', () => process.exit(1))
-         .pipe(istanbul.writeReports());
+         .once('error', () => process.exit(1));
 });
 
 /**
@@ -192,16 +143,9 @@ gulp.task('webpack', ['build'], function() {
     .pipe(gulp.dest('demo/dist/'));
 });
 
-gulp.task('watch', ['webpack'], () => {
-  gulp.watch(['./src/*', './src/**/*'], ['webpack']);
-});
 
-/**
- * Submit coverage results to coveralls.io
- */
-gulp.task('coveralls', function () {
-  gulp.src('coverage/**/lcov.info')
-    .pipe(coveralls());
+gulp.task('watch-demo', ['webpack'], () => {
+  gulp.watch(['./demo/*', './lib/**/*'], ['webpack']);
 });
 
 gulp.task('build', ['sorcery', 'sorcery-addons']);

package.json

@@ -1,19 +1,21 @@
 {
   "name": "xterm",
   "description": "Full xterm terminal, in your browser",
-  "version": "3.4.0",
-  "main": "lib/Terminal.js",
+  "version": "3.5.1",
+  "main": "lib/public/Terminal.js",
   "types": "typings/xterm.d.ts",
   "repository": "https://github.com/xtermjs/xterm.js",
   "license": "MIT",
   "devDependencies": {
     "@types/chai": "^3.4.34",
-    "@types/jsdom": "^11.0.1",
+    "@types/glob": "^5.0.35",
+    "@types/jsdom": "11.0.1",
     "@types/mocha": "^2.2.33",
     "@types/node": "6.0.108",
-    "@types/text-encoding": "0.0.32",
     "browserify": "^13.3.0",
     "chai": "3.5.0",
+    "concurrently": "^3.5.1",
+    "coveralls": "^3.0.1",
     "express": "4.13.4",
     "express-ws": "2.0.0-rc.1",
     "fs-extra": "^1.0.0",
@@ -21,22 +23,21 @@
     "gulp": "3.9.1",
     "gulp-cli": "^1.2.2",
     "gulp-concat": "^2.6.1",
-    "gulp-coveralls": "^0.1.4",
-    "gulp-istanbul": "^1.1.1",
     "gulp-mocha": "^3.0.1",
     "gulp-sourcemaps": "1.9.1",
     "gulp-typescript": "^3.1.3",
     "gulp-util": "3.0.8",
     "jsdoc": "3.4.3",
-    "jsdom": "^11.1.0",
+    "jsdom": "^11.11.0",
     "merge-stream": "^1.0.1",
-    "node-pty": "^0.7.2",
+    "node-pty": "0.7.6",
     "nodemon": "1.10.2",
     "npm-run-all": "^4.1.2",
+    "nyc": "^11.8.0",
     "sorcery": "^0.10.0",
     "tslint": "^5.9.1",
     "tslint-consistent-codestyle": "^1.13.0",
-    "typescript": "~2.7.1",
+    "typescript": "2.8.3",
     "vinyl-buffer": "^1.0.0",
     "vinyl-source-stream": "^1.1.0",
     "webpack": "^3.10.0",
@@ -44,17 +45,21 @@
     "zmodem.js": "^0.1.5"
   },
   "scripts": {
-    "start": "node demo/app",
+    "start": "concurrently --kill-others-on-fail --names \"demo,server\" \"gulp watch-demo\" \"node demo/app\"",
     "start-zmodem": "node demo/zmodem/app",
     "lint": "tslint 'src/**/*.ts'",
     "test": "npm-run-all mocha lint",
+    "test-debug": "node --inspect-brk node_modules/.bin/gulp test",
+    "test-suite": "gulp mocha-suite --test",
+    "test-coverage": "nyc -x gulpfile.js -x '**/*test*' npm run mocha",
     "mocha": "gulp test",
     "build:docs": "jsdoc -c jsdoc.json",
     "tsc": "tsc",
+    "prebuild": "concurrently --kill-others-on-fail --names \"lib,attach,fit,fullscreen,search,terminado,webLinks,winptyCompat,zmodem,css\" \"tsc\" \"tsc -p ./src/addons/attach\" \"tsc -p ./src/addons/fit\" \"tsc -p ./src/addons/fullscreen\" \"tsc -p ./src/addons/search\" \"tsc -p ./src/addons/terminado\" \"tsc -p ./src/addons/webLinks\" \"tsc -p ./src/addons/winptyCompat\" \"tsc -p ./src/addons/zmodem\" \"gulp css\"",
     "build": "gulp build",
     "prepublish": "npm run build",
-    "coveralls": "gulp coveralls",
+    "coveralls": "nyc report --reporter=text-lcov | coveralls",
     "webpack": "gulp webpack",
-    "watch": "gulp watch"
+    "watch": "concurrently --kill-others-on-fail --names \"lib,attach,fit,fullscreen,search,terminado,webLinks,winptyCompat,zmodem,css\" \"tsc -w\" \"tsc -w -p ./src/addons/attach\" \"tsc -w -p ./src/addons/fit\" \"tsc -w -p ./src/addons/fullscreen\" \"tsc -w -p ./src/addons/search\" \"tsc -w -p ./src/addons/terminado\" \"tsc -w -p ./src/addons/webLinks\" \"tsc -w -p ./src/addons/winptyCompat\" \"tsc -w -p ./src/addons/zmodem\" \"gulp watch-css\""
   }
 }

src/AccessibilityManager.ts

@@ -6,9 +6,9 @@
 import * as Strings from './Strings';
 import { ITerminal, IBuffer } from './Types';
 import { isMac } from './shared/utils/Browser';
-import { RenderDebouncer } from './utils/RenderDebouncer';
-import { addDisposableListener } from './utils/Dom';
-import { IDisposable } from 'xterm';
+import { RenderDebouncer } from './ui/RenderDebouncer';
+import { addDisposableDomListener } from './ui/Lifecycle';
+import { Disposable } from './common/Lifecycle';
 
 const MAX_ROWS_TO_READ = 20;
 
@@ -17,7 +17,7 @@ const enum BoundaryPosition {
   BOTTOM
 }
 
-export class AccessibilityManager implements IDisposable {
+export class AccessibilityManager extends Disposable {
   private _accessibilityTreeRoot: HTMLElement;
   private _rowContainer: HTMLElement;
   private _rowElements: HTMLElement[];
@@ -29,8 +29,6 @@ export class AccessibilityManager implements IDisposable {
   private _topBoundaryFocusListener: (e: FocusEvent) => void;
   private _bottomBoundaryFocusListener: (e: FocusEvent) => void;
 
-  private _disposables: IDisposable[] = [];
-
   /**
    * This queue has a character pushed to it for keys that are pressed, if the
    * next character added to the terminal is equal to the key char then it is
@@ -43,6 +41,7 @@ export class AccessibilityManager implements IDisposable {
   private _charsToConsume: string[] = [];
 
   constructor(private _terminal: ITerminal) {
+    super();
     this._accessibilityTreeRoot = document.createElement('div');
     this._accessibilityTreeRoot.classList.add('xterm-accessibility');
 
@@ -72,29 +71,28 @@ export class AccessibilityManager implements IDisposable {
 
     this._terminal.element.insertAdjacentElement('afterbegin', this._accessibilityTreeRoot);
 
-    this._disposables.push(this._renderRowsDebouncer);
-    this._disposables.push(this._terminal.addDisposableListener('resize', data => this._onResize(data.cols, data.rows)));
-    this._disposables.push(this._terminal.addDisposableListener('refresh', data => this._refreshRows(data.start, data.end)));
-    this._disposables.push(this._terminal.addDisposableListener('scroll', data => this._refreshRows()));
+    this.register(this._renderRowsDebouncer);
+    this.register(this._terminal.addDisposableListener('resize', data => this._onResize(data.cols, data.rows)));
+    this.register(this._terminal.addDisposableListener('refresh', data => this._refreshRows(data.start, data.end)));
+    this.register(this._terminal.addDisposableListener('scroll', data => this._refreshRows()));
     // Line feed is an issue as the prompt won't be read out after a command is run
-    this._disposables.push(this._terminal.addDisposableListener('a11y.char', (char) => this._onChar(char)));
-    this._disposables.push(this._terminal.addDisposableListener('linefeed', () => this._onChar('\n')));
-    this._disposables.push(this._terminal.addDisposableListener('a11y.tab', spaceCount => this._onTab(spaceCount)));
-    this._disposables.push(this._terminal.addDisposableListener('key', keyChar => this._onKey(keyChar)));
-    this._disposables.push(this._terminal.addDisposableListener('blur', () => this._clearLiveRegion()));
+    this.register(this._terminal.addDisposableListener('a11y.char', (char) => this._onChar(char)));
+    this.register(this._terminal.addDisposableListener('linefeed', () => this._onChar('\n')));
+    this.register(this._terminal.addDisposableListener('a11y.tab', spaceCount => this._onTab(spaceCount)));
+    this.register(this._terminal.addDisposableListener('key', keyChar => this._onKey(keyChar)));
+    this.register(this._terminal.addDisposableListener('blur', () => this._clearLiveRegion()));
     // TODO: Maybe renderer should fire an event on terminal when the characters change and that
     //       should be listened to instead? That would mean that the order of events are always
     //       guarenteed
-    this._disposables.push(this._terminal.addDisposableListener('dprchange', () => this._refreshRowsDimensions()));
-    this._disposables.push(this._terminal.renderer.addDisposableListener('resize', () => this._refreshRowsDimensions()));
+    this.register(this._terminal.addDisposableListener('dprchange', () => this._refreshRowsDimensions()));
+    this.register(this._terminal.renderer.addDisposableListener('resize', () => this._refreshRowsDimensions()));
     // This shouldn't be needed on modern browsers but is present in case the
     // media query that drives the dprchange event isn't supported
-    this._disposables.push(addDisposableListener(window, 'resize', () => this._refreshRowsDimensions()));
+    this.register(addDisposableDomListener(window, 'resize', () => this._refreshRowsDimensions()));
   }
 
   public dispose(): void {
-    this._disposables.forEach(d => d.dispose());
-    this._disposables.length = 0;
+    super.dispose();
     this._terminal.element.removeChild(this._accessibilityTreeRoot);
     this._rowElements.length = 0;
   }
@@ -179,7 +177,7 @@ export class AccessibilityManager implements IDisposable {
     this._refreshRowsDimensions();
   }
 
-  public _createAccessibilityTreeNode(): HTMLElement {
+  private _createAccessibilityTreeNode(): HTMLElement {
     const element = document.createElement('div');
     element.setAttribute('role', 'listitem');
     element.tabIndex = -1;

src/Buffer.test.ts

@@ -6,7 +6,7 @@
 import { assert } from 'chai';
 import { ITerminal } from './Types';
 import { Buffer } from './Buffer';
-import { CircularList } from './utils/CircularList';
+import { CircularList } from './common/CircularList';
 import { MockTerminal } from './utils/TestUtils.test';
 
 const INIT_COLS = 80;
@@ -48,6 +48,63 @@ describe('Buffer', () => {
     });
   });
 
+  describe('getWrappedRangeForLine', () => {
+    describe('non-wrapped', () => {
+      it('should return a single row for the first row', () => {
+        buffer.fillViewportRows();
+        assert.deepEqual(buffer.getWrappedRangeForLine(0), { first: 0, last: 0 });
+      });
+      it('should return a single row for a middle row', () => {
+        buffer.fillViewportRows();
+        assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 12, last: 12 });
+      });
+      it('should return a single row for the last row', () => {
+        buffer.fillViewportRows();
+        assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 1), { first: 23, last: 23 });
+      });
+    });
+    describe('wrapped', () => {
+      it('should return a range for the first row', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(1)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(0), { first: 0, last: 1 });
+      });
+      it('should return a range for a middle row wrapping upwards', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(12)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 11, last: 12 });
+      });
+      it('should return a range for a middle row wrapping downwards', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(13)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 12, last: 13 });
+      });
+      it('should return a range for a middle row wrapping both ways', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(11)).isWrapped = true;
+        (<any> buffer.lines.get(12)).isWrapped = true;
+        (<any> buffer.lines.get(13)).isWrapped = true;
+        (<any> buffer.lines.get(14)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 10, last: 14 });
+      });
+      it('should return a range for the last row', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(23)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 1), { first: 22, last: 23 });
+      });
+      it('should return a range for a row that wraps upward to first row', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(1)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(1), { first: 0, last: 1 });
+      });
+      it('should return a range for a row that wraps downward to last row', () => {
+        buffer.fillViewportRows();
+        (<any> buffer.lines.get(buffer.lines.length - 1)).isWrapped = true;
+        assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 2), { first: 22, last: 23 });
+      });
+    });
+  });
+
   describe('resize', () => {
     describe('column size is reduced', () => {
       it('should not trim the data in the buffer', () => {
@@ -212,4 +269,81 @@ describe('Buffer', () => {
       assert.equal(buffer.markers.length, 0);
     });
   });
+
+  describe ('translateBufferLineToString', () => {
+    it('should handle selecting a section of ascii text', () => {
+      buffer.lines.set(0, [
+        [ null, 'a', 1, 'a'.charCodeAt(0)],
+        [ null, 'b', 1, 'b'.charCodeAt(0)],
+        [ null, 'c', 1, 'c'.charCodeAt(0)],
+        [ null, 'd', 1, 'd'.charCodeAt(0)]
+      ]);
+
+      const str = buffer.translateBufferLineToString(0, true, 0, 2);
+      assert.equal(str, 'ab');
+    });
+
+    it('should handle a cut-off double width character by including it', () => {
+      buffer.lines.set(0, [
+        [ null, '語', 2, 35486 ],
+        [ null, '', 0, null],
+        [ null, 'a', 1, 'a'.charCodeAt(0)]
+      ]);
+
+      const str1 = buffer.translateBufferLineToString(0, true, 0, 1);
+      assert.equal(str1, '語');
+    });
+
+    it('should handle a zero width character in the middle of the string by not including it', () => {
+      buffer.lines.set(0, [
+        [ null, '語', 2, '語'.charCodeAt(0) ],
+        [ null, '', 0, null],
+        [ null, 'a', 1, 'a'.charCodeAt(0)]
+      ]);
+
+      const str0 = buffer.translateBufferLineToString(0, true, 0, 1);
+      assert.equal(str0, '語');
+
+      const str1 = buffer.translateBufferLineToString(0, true, 0, 2);
+      assert.equal(str1, '語');
+
+      const str2 = buffer.translateBufferLineToString(0, true, 0, 3);
+      assert.equal(str2, '語a');
+    });
+
+    it('should handle single width emojis', () => {
+      buffer.lines.set(0, [
+        [ null, '😁', 1, '😁'.charCodeAt(0) ],
+        [ null, 'a', 1, 'a'.charCodeAt(0)]
+      ]);
+
+      const str1 = buffer.translateBufferLineToString(0, true, 0, 1);
+      assert.equal(str1, '😁');
+
+      const str2 = buffer.translateBufferLineToString(0, true, 0, 2);
+      assert.equal(str2, '😁a');
+    });
+
+    it('should handle double width emojis', () => {
+      buffer.lines.set(0, [
+        [ null, '😁', 2, '😁'.charCodeAt(0) ],
+        [ null, '', 0, null]
+      ]);
+
+      const str1 = buffer.translateBufferLineToString(0, true, 0, 1);
+      assert.equal(str1, '😁');
+
+      const str2 = buffer.translateBufferLineToString(0, true, 0, 2);
+      assert.equal(str2, '😁');
+
+      buffer.lines.set(0, [
+        [ null, '😁', 2, '😁'.charCodeAt(0) ],
+        [ null, '', 0, null],
+        [ null, 'a', 1, 'a'.charCodeAt(0)]
+      ]);
+
+      const str3 = buffer.translateBufferLineToString(0, true, 0, 3);
+      assert.equal(str3, '😁a');
+    });
+  });
 });

src/Buffer.ts

@@ -3,11 +3,12 @@
  * @license MIT
  */
 
-import { CircularList } from './utils/CircularList';
+import { CircularList } from './common/CircularList';
 import { LineData, CharData, ITerminal, IBuffer } from './Types';
 import { EventEmitter } from './EventEmitter';
-import { IDisposable, IMarker } from 'xterm';
+import { IMarker } from 'xterm';
 
+export const DEFAULT_ATTR = (0 << 18) | (257 << 9) | (256 << 0);
 export const CHAR_DATA_ATTR_INDEX = 0;
 export const CHAR_DATA_CHAR_INDEX = 1;
 export const CHAR_DATA_WIDTH_INDEX = 2;
@@ -116,7 +117,7 @@ export class Buffer implements IBuffer {
     if (this.lines.length > 0) {
       // Deal with columns increasing (we don't do anything when columns reduce)
       if (this._terminal.cols < newCols) {
-        const ch: CharData = [this._terminal.defAttr, ' ', 1, 32]; // does xterm use the default attr?
+        const ch: CharData = [DEFAULT_ATTR, ' ', 1, 32]; // does xterm use the default attr?
         for (let i = 0; i < this.lines.length; i++) {
           while (this.lines.get(i).length < newCols) {
             this.lines.get(i).push(ch);
@@ -226,7 +227,7 @@ export class Buffer implements IBuffer {
         if (startCol >= i) {
           startIndex--;
         }
-        if (endCol >= i) {
+        if (endCol > i) {
           endIndex--;
         }
       } else {
@@ -259,6 +260,20 @@ export class Buffer implements IBuffer {
     return lineString.substring(startIndex, endIndex);
   }
 
+  public getWrappedRangeForLine(y: number): { first: number, last: number } {
+    let first = y;
+    let last = y;
+    // Scan upwards for wrapped lines
+    while (first > 0 && (<any>this.lines.get(first)).isWrapped) {
+      first--;
+    }
+    // Scan downwards for wrapped lines
+    while (last + 1 < this.lines.length && (<any>this.lines.get(last + 1)).isWrapped) {
+      last++;
+    }
+    return { first, last };
+  }
+
   /**
    * Setup the tab stops.
    * @param i The index to start setting up tab stops from.
@@ -305,14 +320,14 @@ export class Buffer implements IBuffer {
   public addMarker(y: number): Marker {
     const marker = new Marker(y);
     this.markers.push(marker);
-    marker.disposables.push(this.lines.addDisposableListener('trim', amount => {
+    marker.register(this.lines.addDisposableListener('trim', amount => {
       marker.line -= amount;
       // The marker should be disposed when the line is trimmed from the buffer
       if (marker.line < 0) {
         marker.dispose();
       }
     }));
-    marker.on('dispose', () => this._removeMarker(marker));
+    marker.register(marker.addDisposableListener('dispose', () => this._removeMarker(marker)));
     return marker;
   }
 
@@ -323,11 +338,10 @@ export class Buffer implements IBuffer {
 }
 
 export class Marker extends EventEmitter implements IMarker {
-  private static NEXT_ID = 1;
+  private static _nextId = 1;
 
-  private _id: number = Marker.NEXT_ID++;
+  private _id: number = Marker._nextId++;
   public isDisposed: boolean = false;
-  public disposables: IDisposable[] = [];
 
   public get id(): number { return this._id; }
 
@@ -342,8 +356,8 @@ export class Marker extends EventEmitter implements IMarker {
       return;
     }
     this.isDisposed = true;
-    this.disposables.forEach(d => d.dispose());
-    this.disposables.length = 0;
+    // Emit before super.dispose such that dispose listeners get a change to react
     this.emit('dispose');
+    super.dispose();
   }
 }

src/CharWidth.ts

@@ -121,7 +121,7 @@ export const wcwidth = (function(opts: {nul: number, control: number}): (ucs: nu
     }
     const control = opts.control | 0;
     let table: number[] | Uint32Array = null;
-    function init_table(): number[] | Uint32Array {
+    function initTable(): number[] | Uint32Array {
       // lookup table for BMP
       const CODEPOINTS = 65536;  // BMP holds 65536 codepoints
       const BITWIDTH = 2;        // a codepoint can have a width of 0, 1 or 2
@@ -161,7 +161,7 @@ export const wcwidth = (function(opts: {nul: number, control: number}): (ucs: nu
       if (num < 127) {
         return 1;
       }
-      let t = table || init_table();
+      const t = table || initTable();
       if (num < 65536) {
         return t[num >> 4] >> ((num & 15) << 1) & 3;
       }

src/CompositionHelper.test.ts

@@ -5,13 +5,14 @@
 
 import { assert } from 'chai';
 import { CompositionHelper } from './CompositionHelper';
+import { ITerminal } from './Types';
 
 describe('CompositionHelper', () => {
-  let terminal;
-  let compositionHelper;
-  let compositionView;
-  let textarea;
-  let handledText;
+  let terminal: ITerminal;
+  let compositionHelper: CompositionHelper;
+  let compositionView: HTMLElement;
+  let textarea: HTMLTextAreaElement;
+  let handledText: string;
 
   beforeEach(() => {
     compositionView = {
@@ -27,14 +28,14 @@ describe('CompositionHelper', () => {
         top: 0
       },
       textContent: ''
-    };
+    } as any;
     textarea = {
       value: '',
       style: {
         left: 0,
         top: 0
       }
-    };
+    } as any;
     terminal = {
       element: {
         querySelector: () => {
@@ -54,7 +55,7 @@ describe('CompositionHelper', () => {
       options: {
         lineHeight: 1
       }
-    };
+    } as any;
     handledText = '';
     compositionHelper = new CompositionHelper(textarea, compositionView, terminal);
   });
@@ -63,7 +64,7 @@ describe('CompositionHelper', () => {
     it('Should insert simple characters', (done) => {
       // First character 'ㅇ'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'ㅇ' });
+      compositionHelper.compositionupdate(<CompositionEvent><CompositionEvent>{ data: 'ㅇ' });
       textarea.value = 'ㅇ';
       setTimeout(() => { // wait for any textarea updates
         compositionHelper.compositionend();
@@ -71,7 +72,7 @@ describe('CompositionHelper', () => {
           assert.equal(handledText, 'ㅇ');
           // Second character 'ㅇ'
           compositionHelper.compositionstart();
-          compositionHelper.compositionupdate({ data: 'ㅇ' });
+          compositionHelper.compositionupdate(<CompositionEvent><CompositionEvent>{ data: 'ㅇ' });
           textarea.value = 'ㅇㅇ';
           setTimeout(() => { // wait for any textarea updates
             compositionHelper.compositionend();
@@ -87,13 +88,13 @@ describe('CompositionHelper', () => {
     it('Should insert complex characters', (done) => {
       // First character '앙'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'ㅇ' });
+      compositionHelper.compositionupdate(<CompositionEvent>{ data: 'ㅇ' });
       textarea.value = 'ㅇ';
       setTimeout(() => { // wait for any textarea updates
-        compositionHelper.compositionupdate({ data: '아' });
+        compositionHelper.compositionupdate(<CompositionEvent>{ data: '아' });
         textarea.value = '아';
         setTimeout(() => { // wait for any textarea updates
-          compositionHelper.compositionupdate({ data: '앙' });
+          compositionHelper.compositionupdate(<CompositionEvent>{ data: '앙' });
           textarea.value = '앙';
           setTimeout(() => { // wait for any textarea updates
             compositionHelper.compositionend();
@@ -101,13 +102,13 @@ describe('CompositionHelper', () => {
               assert.equal(handledText, '앙');
               // Second character '앙'
               compositionHelper.compositionstart();
-              compositionHelper.compositionupdate({ data: 'ㅇ' });
+              compositionHelper.compositionupdate(<CompositionEvent>{ data: 'ㅇ' });
               textarea.value = '앙ㅇ';
               setTimeout(() => { // wait for any textarea updates
-                compositionHelper.compositionupdate({ data: '아' });
+                compositionHelper.compositionupdate(<CompositionEvent>{ data: '아' });
                 textarea.value = '앙아';
                 setTimeout(() => { // wait for any textarea updates
-                  compositionHelper.compositionupdate({ data: '앙' });
+                  compositionHelper.compositionupdate(<CompositionEvent>{ data: '앙' });
                   textarea.value = '앙앙';
                   setTimeout(() => { // wait for any textarea updates
                     compositionHelper.compositionend();
@@ -127,19 +128,19 @@ describe('CompositionHelper', () => {
     it('Should insert complex characters that change with following character', (done) => {
       // First character '아'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'ㅇ' });
+      compositionHelper.compositionupdate(<CompositionEvent>{ data: 'ㅇ' });
       textarea.value = 'ㅇ';
       setTimeout(() => { // wait for any textarea updates
-        compositionHelper.compositionupdate({ data: '아' });
+        compositionHelper.compositionupdate(<CompositionEvent>{ data: '아' });
         textarea.value = '아';
         setTimeout(() => { // wait for any textarea updates
           // Start second character '아' in first character
-          compositionHelper.compositionupdate({ data: '앙' });
+          compositionHelper.compositionupdate(<CompositionEvent>{ data: '앙' });
           textarea.value = '앙';
           setTimeout(() => { // wait for any textarea updates
             compositionHelper.compositionend();
             compositionHelper.compositionstart();
-            compositionHelper.compositionupdate({ data: '아' });
+            compositionHelper.compositionupdate(<CompositionEvent>{ data: '아' });
             textarea.value = '아아';
             setTimeout(() => { // wait for any textarea updates
               compositionHelper.compositionend();
@@ -156,14 +157,14 @@ describe('CompositionHelper', () => {
     it('Should insert multi-characters compositions', (done) => {
       // First character 'だ'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'd' });
+      compositionHelper.compositionupdate(<CompositionEvent>{ data: 'd' });
       textarea.value = 'd';
       setTimeout(() => { // wait for any textarea updates
-        compositionHelper.compositionupdate({ data: 'だ' });
+        compositionHelper.compositionupdate(<CompositionEvent>{ data: 'だ' });
         textarea.value = 'だ';
         setTimeout(() => { // wait for any textarea updates
           // Second character 'あ'
-          compositionHelper.compositionupdate({ data: 'だあ' });
+          compositionHelper.compositionupdate(<CompositionEvent>{ data: 'だあ' });
           textarea.value = 'だあ';
           setTimeout(() => { // wait for any textarea updates
             compositionHelper.compositionend();
@@ -179,18 +180,18 @@ describe('CompositionHelper', () => {
     it('Should insert multi-character compositions that are converted to other characters with the same length', (done) => {
       // First character 'だ'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'd' });
+      compositionHelper.compositionupdate(<CompositionEvent>{ data: 'd' });
       textarea.value = 'd';
       setTimeout(() => { // wait for any textarea updates
-        compositionHelper.compositionupdate({ data: 'だ' });
+        compositionHelper.compositionupdate(<CompositionEvent>{ data: 'だ' });
         textarea.value = 'だ';
         setTimeout(() => { // wait for any textarea updates
           // Second character 'ー'
-          compositionHelper.compositionupdate({ data: 'だー' });
+          compositionHelper.compositionupdate(<CompositionEvent>{ data: 'だー' });
           textarea.value = 'だー';
           setTimeout(() => { // wait for any textarea updates
             // Convert to katakana 'ダー'
-            compositionHelper.compositionupdate({ data: 'ダー' });
+            compositionHelper.compositionupdate(<CompositionEvent>{ data: 'ダー' });
             textarea.value = 'ダー';
             setTimeout(() => { // wait for any textarea updates
               compositionHelper.compositionend();
@@ -207,18 +208,18 @@ describe('CompositionHelper', () => {
     it('Should insert multi-character compositions that are converted to other characters with different lengths', (done) => {
       // First character 'い'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'い' });
+      compositionHelper.compositionupdate(<CompositionEvent>{ data: 'い' });
       textarea.value = 'い';
       setTimeout(() => { // wait for any textarea updates
         // Second character 'ま'
-        compositionHelper.compositionupdate({ data: 'いm' });
+        compositionHelper.compositionupdate(<CompositionEvent>{ data: 'いm' });
         textarea.value = 'いm';
         setTimeout(() => { // wait for any textarea updates
-          compositionHelper.compositionupdate({ data: 'いま' });
+          compositionHelper.compositionupdate(<CompositionEvent>{ data: 'いま' });
           textarea.value = 'いま';
           setTimeout(() => { // wait for any textarea updates
             // Convert to kanji '今'
-            compositionHelper.compositionupdate({ data: '今' });
+            compositionHelper.compositionupdate(<CompositionEvent>{ data: '今' });
             textarea.value = '今';
             setTimeout(() => { // wait for any textarea updates
               compositionHelper.compositionend();
@@ -235,7 +236,7 @@ describe('CompositionHelper', () => {
     it('Should insert non-composition characters input immediately after composition characters', (done) => {
       // First character 'ㅇ'
       compositionHelper.compositionstart();
-      compositionHelper.compositionupdate({ data: 'ㅇ' });
+      compositionHelper.compositionupdate(<CompositionEvent>{ data: 'ㅇ' });
       textarea.value = 'ㅇ';
       setTimeout(() => { // wait for any textarea updates
         compositionHelper.compositionend();

src/EscapeSequenceParser.ts

@@ -0,0 +1,565 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { ParserState, ParserAction, IParsingState, IDcsHandler, IEscapeSequenceParser } from './Types';
+import { Disposable } from './common/Lifecycle';
+
+/**
+ * Returns an array filled with numbers between the low and high parameters (right exclusive).
+ * @param low The low number.
+ * @param high The high number.
+ */
+function r(low: number, high: number): number[] {
+  let c = high - low;
+  const arr = new Array(c);
+  while (c--) {
+    arr[c] = --high;
+  }
+  return arr;
+}
+
+/**
+ * Transition table for EscapeSequenceParser.
+ * NOTE: data in the underlying table is packed like this:
+ *   currentState << 8 | characterCode  -->  action << 4 | nextState
+ */
+export class TransitionTable {
+  public table: Uint8Array | number[];
+
+  constructor(length: number) {
+    this.table = (typeof Uint8Array === 'undefined')
+      ? new Array(length)
+      : new Uint8Array(length);
+  }
+
+  /**
+   * Add a transition to the transition table.
+   * @param code input character code
+   * @param state current parser state
+   * @param action parser action to be done
+   * @param next next parser state
+   */
+  add(code: number, state: number, action: number | null, next: number | null): void {
+    this.table[state << 8 | code] = ((action | 0) << 4) | ((next === undefined) ? state : next);
+  }
+
+  /**
+   * Add transitions for multiple input character codes.
+   * @param codes input character code array
+   * @param state current parser state
+   * @param action parser action to be done
+   * @param next next parser state
+   */
+  addMany(codes: number[], state: number, action: number | null, next: number | null): void {
+    for (let i = 0; i < codes.length; i++) {
+      this.add(codes[i], state, action, next);
+    }
+  }
+}
+
+
+/**
+ * Default definitions for the VT500_TRANSITION_TABLE.
+ */
+const PRINTABLES = r(0x20, 0x7f);
+const EXECUTABLES = r(0x00, 0x18);
+EXECUTABLES.push(0x19);
+EXECUTABLES.concat(r(0x1c, 0x20));
+const DEFAULT_TRANSITION = ParserAction.ERROR << 4 | ParserState.GROUND;
+
+/**
+ * VT500 compatible transition table.
+ * Taken from https://vt100.net/emu/dec_ansi_parser.
+ */
+export const VT500_TRANSITION_TABLE = (function (): TransitionTable {
+  const table: TransitionTable = new TransitionTable(4095);
+
+  const states: number[] = r(ParserState.GROUND, ParserState.DCS_PASSTHROUGH + 1);
+  let state: any;
+
+  // table with default transition [any] --> DEFAULT_TRANSITION
+  for (state in states) {
+    // NOTE: table lookup is capped at 0xa0 in parse to keep the table small
+    for (let code = 0; code < 160; ++code) {
+      table.add(code, state, ParserAction.ERROR, ParserState.GROUND);
+    }
+  }
+  // printables
+  table.addMany(PRINTABLES, ParserState.GROUND, ParserAction.PRINT, ParserState.GROUND);
+  // global anywhere rules
+  for (state in states) {
+    table.addMany([0x18, 0x1a, 0x99, 0x9a], state, ParserAction.EXECUTE, ParserState.GROUND);
+    table.addMany(r(0x80, 0x90), state, ParserAction.EXECUTE, ParserState.GROUND);
+    table.addMany(r(0x90, 0x98), state, ParserAction.EXECUTE, ParserState.GROUND);
+    table.add(0x9c, state, ParserAction.IGNORE, ParserState.GROUND); // ST as terminator
+    table.add(0x1b, state, ParserAction.CLEAR, ParserState.ESCAPE);  // ESC
+    table.add(0x9d, state, ParserAction.OSC_START, ParserState.OSC_STRING);  // OSC
+    table.addMany([0x98, 0x9e, 0x9f], state, ParserAction.IGNORE, ParserState.SOS_PM_APC_STRING);
+    table.add(0x9b, state, ParserAction.CLEAR, ParserState.CSI_ENTRY);  // CSI
+    table.add(0x90, state, ParserAction.CLEAR, ParserState.DCS_ENTRY);  // DCS
+  }
+  // rules for executables and 7f
+  table.addMany(EXECUTABLES, ParserState.GROUND, ParserAction.EXECUTE, ParserState.GROUND);
+  table.addMany(EXECUTABLES, ParserState.ESCAPE, ParserAction.EXECUTE, ParserState.ESCAPE);
+  table.add(0x7f, ParserState.ESCAPE, ParserAction.IGNORE, ParserState.ESCAPE);
+  table.addMany(EXECUTABLES, ParserState.OSC_STRING, ParserAction.IGNORE, ParserState.OSC_STRING);
+  table.addMany(EXECUTABLES, ParserState.CSI_ENTRY, ParserAction.EXECUTE, ParserState.CSI_ENTRY);
+  table.add(0x7f, ParserState.CSI_ENTRY, ParserAction.IGNORE, ParserState.CSI_ENTRY);
+  table.addMany(EXECUTABLES, ParserState.CSI_PARAM, ParserAction.EXECUTE, ParserState.CSI_PARAM);
+  table.add(0x7f, ParserState.CSI_PARAM, ParserAction.IGNORE, ParserState.CSI_PARAM);
+  table.addMany(EXECUTABLES, ParserState.CSI_IGNORE, ParserAction.EXECUTE, ParserState.CSI_IGNORE);
+  table.addMany(EXECUTABLES, ParserState.CSI_INTERMEDIATE, ParserAction.EXECUTE, ParserState.CSI_INTERMEDIATE);
+  table.add(0x7f, ParserState.CSI_INTERMEDIATE, ParserAction.IGNORE, ParserState.CSI_INTERMEDIATE);
+  table.addMany(EXECUTABLES, ParserState.ESCAPE_INTERMEDIATE, ParserAction.EXECUTE, ParserState.ESCAPE_INTERMEDIATE);
+  table.add(0x7f, ParserState.ESCAPE_INTERMEDIATE, ParserAction.IGNORE, ParserState.ESCAPE_INTERMEDIATE);
+  // osc
+  table.add(0x5d, ParserState.ESCAPE, ParserAction.OSC_START, ParserState.OSC_STRING);
+  table.addMany(PRINTABLES, ParserState.OSC_STRING, ParserAction.OSC_PUT, ParserState.OSC_STRING);
+  table.add(0x7f, ParserState.OSC_STRING, ParserAction.OSC_PUT, ParserState.OSC_STRING);
+  table.addMany([0x9c, 0x1b, 0x18, 0x1a, 0x07], ParserState.OSC_STRING, ParserAction.OSC_END, ParserState.GROUND);
+  table.addMany(r(0x1c, 0x20), ParserState.OSC_STRING, ParserAction.IGNORE, ParserState.OSC_STRING);
+  // sos/pm/apc does nothing
+  table.addMany([0x58, 0x5e, 0x5f], ParserState.ESCAPE, ParserAction.IGNORE, ParserState.SOS_PM_APC_STRING);
+  table.addMany(PRINTABLES, ParserState.SOS_PM_APC_STRING, ParserAction.IGNORE, ParserState.SOS_PM_APC_STRING);
+  table.addMany(EXECUTABLES, ParserState.SOS_PM_APC_STRING, ParserAction.IGNORE, ParserState.SOS_PM_APC_STRING);
+  table.add(0x9c, ParserState.SOS_PM_APC_STRING, ParserAction.IGNORE, ParserState.GROUND);
+  // csi entries
+  table.add(0x5b, ParserState.ESCAPE, ParserAction.CLEAR, ParserState.CSI_ENTRY);
+  table.addMany(r(0x40, 0x7f), ParserState.CSI_ENTRY, ParserAction.CSI_DISPATCH, ParserState.GROUND);
+  table.addMany(r(0x30, 0x3a), ParserState.CSI_ENTRY, ParserAction.PARAM, ParserState.CSI_PARAM);
+  table.add(0x3b, ParserState.CSI_ENTRY, ParserAction.PARAM, ParserState.CSI_PARAM);
+  table.addMany([0x3c, 0x3d, 0x3e, 0x3f], ParserState.CSI_ENTRY, ParserAction.COLLECT, ParserState.CSI_PARAM);
+  table.addMany(r(0x30, 0x3a), ParserState.CSI_PARAM, ParserAction.PARAM, ParserState.CSI_PARAM);
+  table.add(0x3b, ParserState.CSI_PARAM, ParserAction.PARAM, ParserState.CSI_PARAM);
+  table.addMany(r(0x40, 0x7f), ParserState.CSI_PARAM, ParserAction.CSI_DISPATCH, ParserState.GROUND);
+  table.addMany([0x3a, 0x3c, 0x3d, 0x3e, 0x3f], ParserState.CSI_PARAM, ParserAction.IGNORE, ParserState.CSI_IGNORE);
+  table.addMany(r(0x20, 0x40), ParserState.CSI_IGNORE, ParserAction.IGNORE, ParserState.CSI_IGNORE);
+  table.add(0x7f, ParserState.CSI_IGNORE, ParserAction.IGNORE, ParserState.CSI_IGNORE);
+  table.addMany(r(0x40, 0x7f), ParserState.CSI_IGNORE, ParserAction.IGNORE, ParserState.GROUND);
+  table.add(0x3a, ParserState.CSI_ENTRY, ParserAction.IGNORE, ParserState.CSI_IGNORE);
+  table.addMany(r(0x20, 0x30), ParserState.CSI_ENTRY, ParserAction.COLLECT, ParserState.CSI_INTERMEDIATE);
+  table.addMany(r(0x20, 0x30), ParserState.CSI_INTERMEDIATE, ParserAction.COLLECT, ParserState.CSI_INTERMEDIATE);
+  table.addMany(r(0x30, 0x40), ParserState.CSI_INTERMEDIATE, ParserAction.IGNORE, ParserState.CSI_IGNORE);
+  table.addMany(r(0x40, 0x7f), ParserState.CSI_INTERMEDIATE, ParserAction.CSI_DISPATCH, ParserState.GROUND);
+  table.addMany(r(0x20, 0x30), ParserState.CSI_PARAM, ParserAction.COLLECT, ParserState.CSI_INTERMEDIATE);
+  // esc_intermediate
+  table.addMany(r(0x20, 0x30), ParserState.ESCAPE, ParserAction.COLLECT, ParserState.ESCAPE_INTERMEDIATE);
+  table.addMany(r(0x20, 0x30), ParserState.ESCAPE_INTERMEDIATE, ParserAction.COLLECT, ParserState.ESCAPE_INTERMEDIATE);
+  table.addMany(r(0x30, 0x7f), ParserState.ESCAPE_INTERMEDIATE, ParserAction.ESC_DISPATCH, ParserState.GROUND);
+  table.addMany(r(0x30, 0x50), ParserState.ESCAPE, ParserAction.ESC_DISPATCH, ParserState.GROUND);
+  table.addMany(r(0x51, 0x58), ParserState.ESCAPE, ParserAction.ESC_DISPATCH, ParserState.GROUND);
+  table.addMany([0x59, 0x5a, 0x5c], ParserState.ESCAPE, ParserAction.ESC_DISPATCH, ParserState.GROUND);
+  table.addMany(r(0x60, 0x7f), ParserState.ESCAPE, ParserAction.ESC_DISPATCH, ParserState.GROUND);
+  // dcs entry
+  table.add(0x50, ParserState.ESCAPE, ParserAction.CLEAR, ParserState.DCS_ENTRY);
+  table.addMany(EXECUTABLES, ParserState.DCS_ENTRY, ParserAction.IGNORE, ParserState.DCS_ENTRY);
+  table.add(0x7f, ParserState.DCS_ENTRY, ParserAction.IGNORE, ParserState.DCS_ENTRY);
+  table.addMany(r(0x1c, 0x20), ParserState.DCS_ENTRY, ParserAction.IGNORE, ParserState.DCS_ENTRY);
+  table.addMany(r(0x20, 0x30), ParserState.DCS_ENTRY, ParserAction.COLLECT, ParserState.DCS_INTERMEDIATE);
+  table.add(0x3a, ParserState.DCS_ENTRY, ParserAction.IGNORE, ParserState.DCS_IGNORE);
+  table.addMany(r(0x30, 0x3a), ParserState.DCS_ENTRY, ParserAction.PARAM, ParserState.DCS_PARAM);
+  table.add(0x3b, ParserState.DCS_ENTRY, ParserAction.PARAM, ParserState.DCS_PARAM);
+  table.addMany([0x3c, 0x3d, 0x3e, 0x3f], ParserState.DCS_ENTRY, ParserAction.COLLECT, ParserState.DCS_PARAM);
+  table.addMany(EXECUTABLES, ParserState.DCS_IGNORE, ParserAction.IGNORE, ParserState.DCS_IGNORE);
+  table.addMany(r(0x20, 0x80), ParserState.DCS_IGNORE, ParserAction.IGNORE, ParserState.DCS_IGNORE);
+  table.addMany(r(0x1c, 0x20), ParserState.DCS_IGNORE, ParserAction.IGNORE, ParserState.DCS_IGNORE);
+  table.addMany(EXECUTABLES, ParserState.DCS_PARAM, ParserAction.IGNORE, ParserState.DCS_PARAM);
+  table.add(0x7f, ParserState.DCS_PARAM, ParserAction.IGNORE, ParserState.DCS_PARAM);
+  table.addMany(r(0x1c, 0x20), ParserState.DCS_PARAM, ParserAction.IGNORE, ParserState.DCS_PARAM);
+  table.addMany(r(0x30, 0x3a), ParserState.DCS_PARAM, ParserAction.PARAM, ParserState.DCS_PARAM);
+  table.add(0x3b, ParserState.DCS_PARAM, ParserAction.PARAM, ParserState.DCS_PARAM);
+  table.addMany([0x3a, 0x3c, 0x3d, 0x3e, 0x3f], ParserState.DCS_PARAM, ParserAction.IGNORE, ParserState.DCS_IGNORE);
+  table.addMany(r(0x20, 0x30), ParserState.DCS_PARAM, ParserAction.COLLECT, ParserState.DCS_INTERMEDIATE);
+  table.addMany(EXECUTABLES, ParserState.DCS_INTERMEDIATE, ParserAction.IGNORE, ParserState.DCS_INTERMEDIATE);
+  table.add(0x7f, ParserState.DCS_INTERMEDIATE, ParserAction.IGNORE, ParserState.DCS_INTERMEDIATE);
+  table.addMany(r(0x1c, 0x20), ParserState.DCS_INTERMEDIATE, ParserAction.IGNORE, ParserState.DCS_INTERMEDIATE);
+  table.addMany(r(0x20, 0x30), ParserState.DCS_INTERMEDIATE, ParserAction.COLLECT, ParserState.DCS_INTERMEDIATE);
+  table.addMany(r(0x30, 0x40), ParserState.DCS_INTERMEDIATE, ParserAction.IGNORE, ParserState.DCS_IGNORE);
+  table.addMany(r(0x40, 0x7f), ParserState.DCS_INTERMEDIATE, ParserAction.DCS_HOOK, ParserState.DCS_PASSTHROUGH);
+  table.addMany(r(0x40, 0x7f), ParserState.DCS_PARAM, ParserAction.DCS_HOOK, ParserState.DCS_PASSTHROUGH);
+  table.addMany(r(0x40, 0x7f), ParserState.DCS_ENTRY, ParserAction.DCS_HOOK, ParserState.DCS_PASSTHROUGH);
+  table.addMany(EXECUTABLES, ParserState.DCS_PASSTHROUGH, ParserAction.DCS_PUT, ParserState.DCS_PASSTHROUGH);
+  table.addMany(PRINTABLES, ParserState.DCS_PASSTHROUGH, ParserAction.DCS_PUT, ParserState.DCS_PASSTHROUGH);
+  table.add(0x7f, ParserState.DCS_PASSTHROUGH, ParserAction.IGNORE, ParserState.DCS_PASSTHROUGH);
+  table.addMany([0x1b, 0x9c], ParserState.DCS_PASSTHROUGH, ParserAction.DCS_UNHOOK, ParserState.GROUND);
+  return table;
+})();
+
+/**
+ * Dummy DCS handler as default fallback.
+ */
+class DcsDummy implements IDcsHandler {
+  hook(collect: string, params: number[], flag: number): void { }
+  put(data: string, start: number, end: number): void { }
+  unhook(): void { }
+}
+
+/**
+ * EscapeSequenceParser.
+ * This class implements the ANSI/DEC compatible parser described by
+ * Paul Williams (https://vt100.net/emu/dec_ansi_parser).
+ * To implement custom ANSI compliant escape sequences it is not needed to
+ * alter this parser, instead consider registering a custom handler.
+ * For non ANSI compliant sequences change the transition table with
+ * the optional `transitions` contructor argument and
+ * reimplement the `parse` method.
+ * NOTE: The parameter element notation is currently not supported.
+ * TODO: implement error recovery hook via error handler return values
+ */
+export class EscapeSequenceParser extends Disposable implements IEscapeSequenceParser {
+  public initialState: number;
+  public currentState: number;
+
+  // buffers over several parse calls
+  protected _osc: string;
+  protected _params: number[];
+  protected _collect: string;
+
+  // handler lookup containers
+  protected _printHandler: (data: string, start: number, end: number) => void;
+  protected _executeHandlers: any;
+  protected _csiHandlers: any;
+  protected _escHandlers: any;
+  protected _oscHandlers: any;
+  protected _dcsHandlers: any;
+  protected _activeDcsHandler: IDcsHandler | null;
+  protected _errorHandler: (state: IParsingState) => IParsingState;
+
+  // fallback handlers
+  protected _printHandlerFb: (data: string, start: number, end: number) => void;
+  protected _executeHandlerFb: (code: number) => void;
+  protected _csiHandlerFb: (collect: string, params: number[], flag: number) => void;
+  protected _escHandlerFb: (collect: string, flag: number) => void;
+  protected _oscHandlerFb: (identifier: number, data: string) => void;
+  protected _dcsHandlerFb: IDcsHandler;
+  protected _errorHandlerFb: (state: IParsingState) => IParsingState;
+
+  constructor(readonly TRANSITIONS: TransitionTable = VT500_TRANSITION_TABLE) {
+    super();
+
+    this.initialState = ParserState.GROUND;
+    this.currentState = this.initialState;
+    this._osc = '';
+    this._params = [0];
+    this._collect = '';
+
+    // set default fallback handlers and handler lookup containers
+    this._printHandlerFb = (data, start, end): void => { };
+    this._executeHandlerFb = (code: number): void => { };
+    this._csiHandlerFb = (collect: string, params: number[], flag: number): void => { };
+    this._escHandlerFb = (collect: string, flag: number): void => { };
+    this._oscHandlerFb = (identifier: number, data: string): void => { };
+    this._dcsHandlerFb = new DcsDummy();
+    this._errorHandlerFb = (state: IParsingState): IParsingState => state;
+    this._printHandler = this._printHandlerFb;
+    this._executeHandlers = Object.create(null);
+    this._csiHandlers = Object.create(null);
+    this._escHandlers = Object.create(null);
+    this._oscHandlers = Object.create(null);
+    this._dcsHandlers = Object.create(null);
+    this._activeDcsHandler = null;
+    this._errorHandler = this._errorHandlerFb;
+  }
+
+  public dispose(): void {
+    this._printHandlerFb = null;
+    this._executeHandlerFb = null;
+    this._csiHandlerFb = null;
+    this._escHandlerFb = null;
+    this._oscHandlerFb = null;
+    this._dcsHandlerFb = null;
+    this._errorHandlerFb = null;
+    this._printHandler = null;
+    this._executeHandlers = null;
+    this._csiHandlers = null;
+    this._escHandlers = null;
+    this._oscHandlers = null;
+    this._dcsHandlers = null;
+    this._activeDcsHandler = null;
+    this._errorHandler = null;
+  }
+
+  setPrintHandler(callback: (data: string, start: number, end: number) => void): void {
+    this._printHandler = callback;
+  }
+  clearPrintHandler(): void {
+    this._printHandler = this._printHandlerFb;
+  }
+
+  setExecuteHandler(flag: string, callback: () => void): void {
+    this._executeHandlers[flag.charCodeAt(0)] = callback;
+  }
+  clearExecuteHandler(flag: string): void {
+    if (this._executeHandlers[flag.charCodeAt(0)]) delete this._executeHandlers[flag.charCodeAt(0)];
+  }
+  setExecuteHandlerFallback(callback: (code: number) => void): void {
+    this._executeHandlerFb = callback;
+  }
+
+  setCsiHandler(flag: string, callback: (params: number[], collect: string) => void): void {
+    this._csiHandlers[flag.charCodeAt(0)] = callback;
+  }
+  clearCsiHandler(flag: string): void {
+    if (this._csiHandlers[flag.charCodeAt(0)]) delete this._csiHandlers[flag.charCodeAt(0)];
+  }
+  setCsiHandlerFallback(callback: (collect: string, params: number[], flag: number) => void): void {
+    this._csiHandlerFb = callback;
+  }
+
+  setEscHandler(collectAndFlag: string, callback: () => void): void {
+    this._escHandlers[collectAndFlag] = callback;
+  }
+  clearEscHandler(collectAndFlag: string): void {
+    if (this._escHandlers[collectAndFlag]) delete this._escHandlers[collectAndFlag];
+  }
+  setEscHandlerFallback(callback: (collect: string, flag: number) => void): void {
+    this._escHandlerFb = callback;
+  }
+
+  setOscHandler(ident: number, callback: (data: string) => void): void {
+    this._oscHandlers[ident] = callback;
+  }
+  clearOscHandler(ident: number): void {
+    if (this._oscHandlers[ident]) delete this._oscHandlers[ident];
+  }
+  setOscHandlerFallback(callback: (identifier: number, data: string) => void): void {
+    this._oscHandlerFb = callback;
+  }
+
+  setDcsHandler(collectAndFlag: string, handler: IDcsHandler): void {
+    this._dcsHandlers[collectAndFlag] = handler;
+  }
+  clearDcsHandler(collectAndFlag: string): void {
+    if (this._dcsHandlers[collectAndFlag]) delete this._dcsHandlers[collectAndFlag];
+  }
+  setDcsHandlerFallback(handler: IDcsHandler): void {
+    this._dcsHandlerFb = handler;
+  }
+
+  setErrorHandler(callback: (state: IParsingState) => IParsingState): void {
+    this._errorHandler = callback;
+  }
+  clearErrorHandler(): void {
+    this._errorHandler = this._errorHandlerFb;
+  }
+
+  reset(): void {
+    this.currentState = this.initialState;
+    this._osc = '';
+    this._params = [0];
+    this._collect = '';
+    this._activeDcsHandler = null;
+  }
+
+  parse(data: string): void {
+    let code = 0;
+    let transition = 0;
+    let error = false;
+    let currentState = this.currentState;
+    let print = -1;
+    let dcs = -1;
+    let osc = this._osc;
+    let collect = this._collect;
+    let params = this._params;
+    const table: Uint8Array | number[] = this.TRANSITIONS.table;
+    let dcsHandler: IDcsHandler | null = this._activeDcsHandler;
+    let callback: Function | null = null;
+
+    // process input string
+    const l = data.length;
+    for (let i = 0; i < l; ++i) {
+      code = data.charCodeAt(i);
+
+      // shortcut for most chars (print action)
+      if (currentState === ParserState.GROUND && code > 0x1f && code < 0x80) {
+        print = (~print) ? print : i;
+        do code = data.charCodeAt(++i);
+        while (i < l && code > 0x1f && code < 0x80);
+        i--;
+        continue;
+      }
+
+      // shortcut for CSI params
+      if (currentState === ParserState.CSI_PARAM && (code > 0x2f && code < 0x39)) {
+        params[params.length - 1] = params[params.length - 1] * 10 + code - 48;
+        continue;
+      }
+
+      // normal transition & action lookup
+      transition = (code < 0xa0) ? (table[currentState << 8 | code]) : DEFAULT_TRANSITION;
+      switch (transition >> 4) {
+        case ParserAction.PRINT:
+          print = (~print) ? print : i;
+          break;
+        case ParserAction.EXECUTE:
+          if (~print) {
+            this._printHandler(data, print, i);
+            print = -1;
+          }
+          callback = this._executeHandlers[code];
+          if (callback) callback();
+          else this._executeHandlerFb(code);
+          break;
+        case ParserAction.IGNORE:
+          // handle leftover print or dcs chars
+          if (~print) {
+            this._printHandler(data, print, i);
+            print = -1;
+          } else if (~dcs) {
+            dcsHandler.put(data, dcs, i);
+            dcs = -1;
+          }
+          break;
+        case ParserAction.ERROR:
+          // chars higher than 0x9f are handled by this action
+          // to keep the transition table small
+          if (code > 0x9f) {
+            switch (currentState) {
+              case ParserState.GROUND:
+                print = (~print) ? print : i;
+                break;
+              case ParserState.OSC_STRING:
+                osc += String.fromCharCode(code);
+                transition |= ParserState.OSC_STRING;
+                break;
+              case ParserState.CSI_IGNORE:
+                transition |= ParserState.CSI_IGNORE;
+                break;
+              case ParserState.DCS_IGNORE:
+                transition |= ParserState.DCS_IGNORE;
+                break;
+              case ParserState.DCS_PASSTHROUGH:
+                dcs = (~dcs) ? dcs : i;
+                transition |= ParserState.DCS_PASSTHROUGH;
+                break;
+              default:
+                error = true;
+            }
+          } else {
+            error = true;
+          }
+          // if we end up here a real error happened
+          if (error) {
+            const inject: IParsingState = this._errorHandler(
+              {
+                position: i,
+                code,
+                currentState,
+                print,
+                dcs,
+                osc,
+                collect,
+                params,
+                abort: false
+              });
+            if (inject.abort) return;
+          // TODO: inject return values
+            error = false;
+          }
+          break;
+        case ParserAction.CSI_DISPATCH:
+          callback = this._csiHandlers[code];
+          if (callback) callback(params, collect);
+          else this._csiHandlerFb(collect, params, code);
+          break;
+        case ParserAction.PARAM:
+          if (code === 0x3b) params.push(0);
+          else params[params.length - 1] = params[params.length - 1] * 10 + code - 48;
+          break;
+        case ParserAction.COLLECT:
+          collect += String.fromCharCode(code);
+          break;
+        case ParserAction.ESC_DISPATCH:
+          callback = this._escHandlers[collect + String.fromCharCode(code)];
+          if (callback) callback(collect, code);
+          else this._escHandlerFb(collect, code);
+          break;
+        case ParserAction.CLEAR:
+          if (~print) {
+            this._printHandler(data, print, i);
+            print = -1;
+          }
+          osc = '';
+          params = [0];
+          collect = '';
+          dcs = -1;
+          break;
+        case ParserAction.DCS_HOOK:
+          dcsHandler = this._dcsHandlers[collect + String.fromCharCode(code)];
+          if (!dcsHandler) dcsHandler = this._dcsHandlerFb;
+          dcsHandler.hook(collect, params, code);
+          break;
+        case ParserAction.DCS_PUT:
+          dcs = (~dcs) ? dcs : i;
+          break;
+        case ParserAction.DCS_UNHOOK:
+          if (dcsHandler) {
+            if (~dcs) dcsHandler.put(data, dcs, i);
+            dcsHandler.unhook();
+            dcsHandler = null;
+          }
+          if (code === 0x1b) transition |= ParserState.ESCAPE;
+          osc = '';
+          params = [0];
+          collect = '';
+          dcs = -1;
+          break;
+        case ParserAction.OSC_START:
+          if (~print) {
+            this._printHandler(data, print, i);
+            print = -1;
+          }
+          osc = '';
+          break;
+        case ParserAction.OSC_PUT:
+          osc += data.charAt(i);
+          break;
+        case ParserAction.OSC_END:
+          if (osc && code !== 0x18 && code !== 0x1a) {
+            // NOTE: OSC subparsing is not part of the original parser
+            // we do basic identifier parsing here to offer a jump table for OSC as well
+            const idx = osc.indexOf(';');
+            if (idx === -1) {
+              this._oscHandlerFb(-1, osc);  // this is an error (malformed OSC)
+            } else {
+              // Note: NaN is not handled here
+              // either catch it with the fallback handler
+              // or with an explicit NaN OSC handler
+              const identifier = parseInt(osc.substring(0, idx));
+              const content = osc.substring(idx + 1);
+              callback = this._oscHandlers[identifier];
+              if (callback) callback(content);
+              else this._oscHandlerFb(identifier, content);
+            }
+          }
+          if (code === 0x1b) transition |= ParserState.ESCAPE;
+          osc = '';
+          params = [0];
+          collect = '';
+          dcs = -1;
+          break;
+      }
+      currentState = transition & 15;
+    }
+
+    // push leftover pushable buffers to terminal
+    if (currentState === ParserState.GROUND && ~print) {
+      this._printHandler(data, print, data.length);
+    } else if (currentState === ParserState.DCS_PASSTHROUGH && ~dcs && dcsHandler) {
+      dcsHandler.put(data, dcs, data.length);
+    }
+
+    // save non pushable buffers
+    this._osc = osc;
+    this._collect = collect;
+    this._params = params;
+
+    // save active dcs handler reference
+    this._activeDcsHandler = dcsHandler;
+
+    // save state
+    this.currentState = currentState;
+  }
+}

src/EventEmitter.ts

@@ -5,11 +5,13 @@
 
 import { XtermListener } from './Types';
 import { IEventEmitter, IDisposable } from 'xterm';
+import { Disposable } from './common/Lifecycle';
 
-export class EventEmitter implements IEventEmitter, IDisposable {
+export class EventEmitter extends Disposable implements IEventEmitter, IDisposable {
   private _events: {[type: string]: XtermListener[]};
 
   constructor() {
+    super();
     // Restore the previous events if available, this will happen if the
     // constructor is called multiple times on the same object (terminal reset).
     this._events = this._events || {};
@@ -26,6 +28,7 @@ export class EventEmitter implements IEventEmitter, IDisposable {
    * @param handler The handler for the listener.
    */
   public addDisposableListener(type: string, handler: XtermListener): IDisposable {
+    // TODO: Rename addDisposableEventListener to more easily disambiguate from Dom listener
     this.on(type, handler);
     return {
       dispose: () => {
@@ -44,7 +47,7 @@ export class EventEmitter implements IEventEmitter, IDisposable {
       return;
     }
 
-    let obj = this._events[type];
+    const obj = this._events[type];
     let i = obj.length;
 
     while (i--) {
@@ -65,7 +68,7 @@ export class EventEmitter implements IEventEmitter, IDisposable {
     if (!this._events[type]) {
       return;
     }
-    let obj = this._events[type];
+    const obj = this._events[type];
     for (let i = 0; i < obj.length; i++) {
       obj[i].apply(this, args);
     }
@@ -76,6 +79,7 @@ export class EventEmitter implements IEventEmitter, IDisposable {
   }
 
   public dispose(): void {
+    super.dispose();
     this._events = {};
   }
 }

src/InputHandler.test.ts

@@ -9,73 +9,78 @@ import { MockInputHandlingTerminal } from './utils/TestUtils.test';
 
 describe('InputHandler', () => {
   describe('save and restore cursor', () => {
-    let terminal = new MockInputHandlingTerminal();
+    const terminal = new MockInputHandlingTerminal();
     terminal.buffer.x = 1;
     terminal.buffer.y = 2;
-    let inputHandler = new InputHandler(terminal);
+    terminal.curAttr = 3;
+    const inputHandler = new InputHandler(terminal);
     // Save cursor position
     inputHandler.saveCursor([]);
     assert.equal(terminal.buffer.x, 1);
     assert.equal(terminal.buffer.y, 2);
+    assert.equal(terminal.curAttr, 3);
     // Change cursor position
     terminal.buffer.x = 10;
     terminal.buffer.y = 20;
+    terminal.curAttr = 30;
     // Restore cursor position
     inputHandler.restoreCursor([]);
     assert.equal(terminal.buffer.x, 1);
     assert.equal(terminal.buffer.y, 2);
+    assert.equal(terminal.curAttr, 3);
   });
   describe('setCursorStyle', () => {
     it('should call Terminal.setOption with correct params', () => {
-      let terminal = new MockInputHandlingTerminal();
-      let inputHandler = new InputHandler(terminal);
+      const terminal = new MockInputHandlingTerminal();
+      const inputHandler = new InputHandler(terminal);
+      const collect = ' ';
 
-      inputHandler.setCursorStyle([0]);
+      inputHandler.setCursorStyle([0], collect);
       assert.equal(terminal.options['cursorStyle'], 'block');
       assert.equal(terminal.options['cursorBlink'], true);
 
       terminal.options = {};
-      inputHandler.setCursorStyle([1]);
+      inputHandler.setCursorStyle([1], collect);
       assert.equal(terminal.options['cursorStyle'], 'block');
       assert.equal(terminal.options['cursorBlink'], true);
 
       terminal.options = {};
-      inputHandler.setCursorStyle([2]);
+      inputHandler.setCursorStyle([2], collect);
       assert.equal(terminal.options['cursorStyle'], 'block');
       assert.equal(terminal.options['cursorBlink'], false);
 
       terminal.options = {};
-      inputHandler.setCursorStyle([3]);
+      inputHandler.setCursorStyle([3], collect);
       assert.equal(terminal.options['cursorStyle'], 'underline');
       assert.equal(terminal.options['cursorBlink'], true);
 
       terminal.options = {};
-      inputHandler.setCursorStyle([4]);
+      inputHandler.setCursorStyle([4], collect);
       assert.equal(terminal.options['cursorStyle'], 'underline');
       assert.equal(terminal.options['cursorBlink'], false);
 
       terminal.options = {};
-      inputHandler.setCursorStyle([5]);
+      inputHandler.setCursorStyle([5], collect);
       assert.equal(terminal.options['cursorStyle'], 'bar');
       assert.equal(terminal.options['cursorBlink'], true);
 
       terminal.options = {};
-      inputHandler.setCursorStyle([6]);
+      inputHandler.setCursorStyle([6], collect);
       assert.equal(terminal.options['cursorStyle'], 'bar');
       assert.equal(terminal.options['cursorBlink'], false);
     });
   });
   describe('setMode', () => {
     it('should toggle Terminal.bracketedPasteMode', () => {
-      let terminal = new MockInputHandlingTerminal();
-      terminal.prefix = '?';
+      const terminal = new MockInputHandlingTerminal();
+      const collect = '?';
       terminal.bracketedPasteMode = false;
-      let inputHandler = new InputHandler(terminal);
+      const inputHandler = new InputHandler(terminal);
       // Set bracketed paste mode
-      inputHandler.setMode([2004]);
+      inputHandler.setMode([2004], collect);
       assert.equal(terminal.bracketedPasteMode, true);
       // Reset bracketed paste mode
-      inputHandler.resetMode([2004]);
+      inputHandler.resetMode([2004], collect);
       assert.equal(terminal.bracketedPasteMode, false);
     });
   });

src/InputHandler.ts

@@ -4,12 +4,106 @@
  * @license MIT
  */
 
-import { CharData, IInputHandler, IInputHandlingTerminal } from './Types';
-import { C0 } from './EscapeSequences';
-import { DEFAULT_CHARSET } from './Charsets';
-import { CHAR_DATA_CHAR_INDEX, CHAR_DATA_WIDTH_INDEX } from './Buffer';
+import { CharData, IInputHandler, IDcsHandler, IEscapeSequenceParser, IBuffer } from './Types';
+import { C0, C1 } from './common/data/EscapeSequences';
+import { CHARSETS, DEFAULT_CHARSET } from './core/data/Charsets';
+import { CHAR_DATA_CHAR_INDEX, CHAR_DATA_WIDTH_INDEX, CHAR_DATA_CODE_INDEX, DEFAULT_ATTR } from './Buffer';
 import { FLAGS } from './renderer/Types';
 import { wcwidth } from './CharWidth';
+import { EscapeSequenceParser } from './EscapeSequenceParser';
+import { ICharset } from './core/Types';
+import { Disposable } from './common/Lifecycle';
+
+/**
+ * Map collect to glevel. Used in `selectCharset`.
+ */
+const GLEVEL: {[key: string]: number} = {'(': 0, ')': 1, '*': 2, '+': 3, '-': 1, '.': 2};
+
+
+/**
+ * DCS subparser implementations
+ */
+
+ /**
+  * DCS + q Pt ST (xterm)
+  *   Request Terminfo String
+  *   not supported
+  */
+class RequestTerminfo implements IDcsHandler {
+  private _data: string;
+  constructor(private _terminal: any) { }
+  hook(collect: string, params: number[], flag: number): void {
+    this._data = '';
+  }
+  put(data: string, start: number, end: number): void {
+    this._data += data.substring(start, end);
+  }
+  unhook(): void {
+    // invalid: DCS 0 + r Pt ST
+    this._terminal.send(`${C0.ESC}P0+r${this._data}${C0.ESC}\\`);
+  }
+}
+
+/**
+ * DCS $ q Pt ST
+ *   DECRQSS (https://vt100.net/docs/vt510-rm/DECRQSS.html)
+ *   Request Status String (DECRQSS), VT420 and up.
+ *   Response: DECRPSS (https://vt100.net/docs/vt510-rm/DECRPSS.html)
+ */
+class DECRQSS implements IDcsHandler {
+  private _data: string;
+
+  constructor(private _terminal: any) { }
+
+  hook(collect: string, params: number[], flag: number): void {
+    // reset data
+    this._data = '';
+  }
+
+  put(data: string, start: number, end: number): void {
+    this._data += data.substring(start, end);
+  }
+
+  unhook(): void {
+    switch (this._data) {
+      // valid: DCS 1 $ r Pt ST (xterm)
+      case '"q': // DECSCA
+        return this._terminal.send(`${C0.ESC}P1$r0"q${C0.ESC}\\`);
+      case '"p': // DECSCL
+        return this._terminal.send(`${C0.ESC}P1$r61"p${C0.ESC}\\`);
+      case 'r': // DECSTBM
+        const pt = '' + (this._terminal.buffer.scrollTop + 1) +
+                ';' + (this._terminal.buffer.scrollBottom + 1) + 'r';
+        return this._terminal.send(`${C0.ESC}P1$r${pt}${C0.ESC}\\`);
+      case 'm': // SGR
+        // TODO: report real settings instead of 0m
+        return this._terminal.send(`${C0.ESC}P1$r0m${C0.ESC}\\`);
+      case ' q': // DECSCUSR
+        const STYLES: {[key: string]: number} = {'block': 2, 'underline': 4, 'bar': 6};
+        let style = STYLES[this._terminal.getOption('cursorStyle')];
+        style -= this._terminal.getOption('cursorBlink');
+        return this._terminal.send(`${C0.ESC}P1$r${style} q${C0.ESC}\\`);
+      default:
+        // invalid: DCS 0 $ r Pt ST (xterm)
+        this._terminal.error('Unknown DCS $q %s', this._data);
+        this._terminal.send(`${C0.ESC}P0$r${this._data}${C0.ESC}\\`);
+    }
+  }
+}
+
+/**
+ * DCS Ps; Ps| Pt ST
+ *   DECUDK (https://vt100.net/docs/vt510-rm/DECUDK.html)
+ *   not supported
+ */
+
+ /**
+  * DCS + p Pt ST (xterm)
+  *   Set Terminfo Data
+  *   not supported
+  */
+
+
 
 /**
  * The terminal's standard implementation of IInputHandler, this handles all
@@ -18,54 +112,291 @@ import { wcwidth } from './CharWidth';
  * Refer to http://invisible-island.net/xterm/ctlseqs/ctlseqs.html to understand
  * each function's header comment.
  */
-export class InputHandler implements IInputHandler {
-  constructor(private _terminal: IInputHandlingTerminal) { }
+export class InputHandler extends Disposable implements IInputHandler {
+  private _surrogateHigh: string;
 
-  public addChar(char: string, code: number): void {
-    if (char >= ' ') {
+  constructor(
+      private _terminal: any, // TODO: reestablish IInputHandlingTerminal here
+      private _parser: IEscapeSequenceParser = new EscapeSequenceParser())
+  {
+    super();
 
-      // make buffer local for faster access
-      const buffer = this._terminal.buffer;
+    this.register(this._parser);
+
+    this._surrogateHigh = '';
+
+    /**
+     * custom fallback handlers
+     */
+    this._parser.setCsiHandlerFallback((collect: string, params: number[], flag: number) => {
+      this._terminal.error('Unknown CSI code: ', collect, params, String.fromCharCode(flag));
+    });
+    this._parser.setEscHandlerFallback((collect: string, flag: number) => {
+      this._terminal.error('Unknown ESC code: ', collect, String.fromCharCode(flag));
+    });
+    this._parser.setExecuteHandlerFallback((code: number) => {
+      this._terminal.error('Unknown EXECUTE code: ', code);
+    });
+    this._parser.setOscHandlerFallback((identifier: number, data: string) => {
+      this._terminal.error('Unknown OSC code: ', identifier, data);
+    });
+
+    /**
+     * print handler
+     */
+    this._parser.setPrintHandler((data, start, end): void => this.print(data, start, end));
+
+    /**
+     * CSI handler
+     */
+    this._parser.setCsiHandler('@', (params, collect) => this.insertChars(params));
+    this._parser.setCsiHandler('A', (params, collect) => this.cursorUp(params));
+    this._parser.setCsiHandler('B', (params, collect) => this.cursorDown(params));
+    this._parser.setCsiHandler('C', (params, collect) => this.cursorForward(params));
+    this._parser.setCsiHandler('D', (params, collect) => this.cursorBackward(params));
+    this._parser.setCsiHandler('E', (params, collect) => this.cursorNextLine(params));
+    this._parser.setCsiHandler('F', (params, collect) => this.cursorPrecedingLine(params));
+    this._parser.setCsiHandler('G', (params, collect) => this.cursorCharAbsolute(params));
+    this._parser.setCsiHandler('H', (params, collect) => this.cursorPosition(params));
+    this._parser.setCsiHandler('I', (params, collect) => this.cursorForwardTab(params));
+    this._parser.setCsiHandler('J', (params, collect) => this.eraseInDisplay(params));
+    this._parser.setCsiHandler('K', (params, collect) => this.eraseInLine(params));
+    this._parser.setCsiHandler('L', (params, collect) => this.insertLines(params));
+    this._parser.setCsiHandler('M', (params, collect) => this.deleteLines(params));
+    this._parser.setCsiHandler('P', (params, collect) => this.deleteChars(params));
+    this._parser.setCsiHandler('S', (params, collect) => this.scrollUp(params));
+    this._parser.setCsiHandler('T', (params, collect) => this.scrollDown(params, collect));
+    this._parser.setCsiHandler('X', (params, collect) => this.eraseChars(params));
+    this._parser.setCsiHandler('Z', (params, collect) => this.cursorBackwardTab(params));
+    this._parser.setCsiHandler('`', (params, collect) => this.charPosAbsolute(params));
+    this._parser.setCsiHandler('a', (params, collect) => this.hPositionRelative(params));
+    this._parser.setCsiHandler('b', (params, collect) => this.repeatPrecedingCharacter(params));
+    this._parser.setCsiHandler('c', (params, collect) => this.sendDeviceAttributes(params, collect));
+    this._parser.setCsiHandler('d', (params, collect) => this.linePosAbsolute(params));
+    this._parser.setCsiHandler('e', (params, collect) => this.vPositionRelative(params));
+    this._parser.setCsiHandler('f', (params, collect) => this.hVPosition(params));
+    this._parser.setCsiHandler('g', (params, collect) => this.tabClear(params));
+    this._parser.setCsiHandler('h', (params, collect) => this.setMode(params, collect));
+    this._parser.setCsiHandler('l', (params, collect) => this.resetMode(params, collect));
+    this._parser.setCsiHandler('m', (params, collect) => this.charAttributes(params));
+    this._parser.setCsiHandler('n', (params, collect) => this.deviceStatus(params, collect));
+    this._parser.setCsiHandler('p', (params, collect) => this.softReset(params, collect));
+    this._parser.setCsiHandler('q', (params, collect) => this.setCursorStyle(params, collect));
+    this._parser.setCsiHandler('r', (params, collect) => this.setScrollRegion(params, collect));
+    this._parser.setCsiHandler('s', (params, collect) => this.saveCursor(params));
+    this._parser.setCsiHandler('u', (params, collect) => this.restoreCursor(params));
+
+    /**
+     * execute handler
+     */
+    this._parser.setExecuteHandler(C0.BEL, () => this.bell());
+    this._parser.setExecuteHandler(C0.LF, () => this.lineFeed());
+    this._parser.setExecuteHandler(C0.VT, () => this.lineFeed());
+    this._parser.setExecuteHandler(C0.FF, () => this.lineFeed());
+    this._parser.setExecuteHandler(C0.CR, () => this.carriageReturn());
+    this._parser.setExecuteHandler(C0.BS, () => this.backspace());
+    this._parser.setExecuteHandler(C0.HT, () => this.tab());
+    this._parser.setExecuteHandler(C0.SO, () => this.shiftOut());
+    this._parser.setExecuteHandler(C0.SI, () => this.shiftIn());
+    // FIXME:   What do to with missing? Old code just added those to print.
+
+    // some C1 control codes - FIXME: should those be enabled by default?
+    this._parser.setExecuteHandler(C1.IND, () => this.index());
+    this._parser.setExecuteHandler(C1.NEL, () => this.nextLine());
+    this._parser.setExecuteHandler(C1.HTS, () => this.tabSet());
+
+    /**
+     * OSC handler
+     */
+    //   0 - icon name + title
+    this._parser.setOscHandler(0, (data) => this.setTitle(data));
+    //   1 - icon name
+    //   2 - title
+    this._parser.setOscHandler(2, (data) => this.setTitle(data));
+    //   3 - set property X in the form "prop=value"
+    //   4 - Change Color Number
+    //   5 - Change Special Color Number
+    //   6 - Enable/disable Special Color Number c
+    //   7 - current directory? (not in xterm spec, see https://gitlab.com/gnachman/iterm2/issues/3939)
+    //  10 - Change VT100 text foreground color to Pt.
+    //  11 - Change VT100 text background color to Pt.
+    //  12 - Change text cursor color to Pt.
+    //  13 - Change mouse foreground color to Pt.
+    //  14 - Change mouse background color to Pt.
+    //  15 - Change Tektronix foreground color to Pt.
+    //  16 - Change Tektronix background color to Pt.
+    //  17 - Change highlight background color to Pt.
+    //  18 - Change Tektronix cursor color to Pt.
+    //  19 - Change highlight foreground color to Pt.
+    //  46 - Change Log File to Pt.
+    //  50 - Set Font to Pt.
+    //  51 - reserved for Emacs shell.
+    //  52 - Manipulate Selection Data.
+    // 104 ; c - Reset Color Number c.
+    // 105 ; c - Reset Special Color Number c.
+    // 106 ; c; f - Enable/disable Special Color Number c.
+    // 110 - Reset VT100 text foreground color.
+    // 111 - Reset VT100 text background color.
+    // 112 - Reset text cursor color.
+    // 113 - Reset mouse foreground color.
+    // 114 - Reset mouse background color.
+    // 115 - Reset Tektronix foreground color.
+    // 116 - Reset Tektronix background color.
+    // 117 - Reset highlight color.
+    // 118 - Reset Tektronix cursor color.
+    // 119 - Reset highlight foreground color.
+
+    /**
+     * ESC handlers
+     */
+    this._parser.setEscHandler('7', () => this.saveCursor([]));
+    this._parser.setEscHandler('8', () => this.restoreCursor([]));
+    this._parser.setEscHandler('D', () => this.index());
+    this._parser.setEscHandler('E', () => this.nextLine());
+    this._parser.setEscHandler('H', () => this.tabSet());
+    this._parser.setEscHandler('M', () => this.reverseIndex());
+    this._parser.setEscHandler('=', () => this.keypadApplicationMode());
+    this._parser.setEscHandler('>', () => this.keypadNumericMode());
+    this._parser.setEscHandler('c', () => this.reset());
+    this._parser.setEscHandler('n', () => this.setgLevel(2));
+    this._parser.setEscHandler('o', () => this.setgLevel(3));
+    this._parser.setEscHandler('|', () => this.setgLevel(3));
+    this._parser.setEscHandler('}', () => this.setgLevel(2));
+    this._parser.setEscHandler('~', () => this.setgLevel(1));
+    this._parser.setEscHandler('%@', () => this.selectDefaultCharset());
+    this._parser.setEscHandler('%G', () => this.selectDefaultCharset());
+    for (const flag in CHARSETS) {
+      this._parser.setEscHandler('(' + flag, () => this.selectCharset('(' + flag));
+      this._parser.setEscHandler(')' + flag, () => this.selectCharset(')' + flag));
+      this._parser.setEscHandler('*' + flag, () => this.selectCharset('*' + flag));
+      this._parser.setEscHandler('+' + flag, () => this.selectCharset('+' + flag));
+      this._parser.setEscHandler('-' + flag, () => this.selectCharset('-' + flag));
+      this._parser.setEscHandler('.' + flag, () => this.selectCharset('.' + flag));
+      this._parser.setEscHandler('/' + flag, () => this.selectCharset('/' + flag)); // TODO: supported?
+    }
+
+    /**
+     * error handler
+     */
+    this._parser.setErrorHandler((state) => {
+      this._terminal.error('Parsing error: ', state);
+      return state;
+    });
+
+    /**
+     * DCS handler
+     */
+    this._parser.setDcsHandler('$q', new DECRQSS(this._terminal));
+    this._parser.setDcsHandler('+q', new RequestTerminfo(this._terminal));
+  }
+
+  public dispose(): void {
+    super.dispose();
+    this._terminal = null;
+  }
+
+  public parse(data: string): void {
+    let buffer = this._terminal.buffer;
+    const cursorStartX = buffer.x;
+    const cursorStartY = buffer.y;
+    if (this._terminal.debug) {
+      this._terminal.log('data: ' + data);
+    }
+
+    // apply leftover surrogate high from last write
+    if (this._surrogateHigh) {
+      data = this._surrogateHigh + data;
+      this._surrogateHigh = '';
+    }
+
+    this._parser.parse(data);
+
+    buffer = this._terminal.buffer;
+    if (buffer.x !== cursorStartX || buffer.y !== cursorStartY) {
+      this._terminal.emit('cursormove');
+    }
+  }
+
+  public print(data: string, start: number, end: number): void {
+    let char: string;
+    let code: number;
+    let low: number;
+    let chWidth: number;
+    const buffer: IBuffer = this._terminal.buffer;
+    const charset: ICharset = this._terminal.charset;
+    const screenReaderMode: boolean = this._terminal.options.screenReaderMode;
+    const cols: number = this._terminal.cols;
+    const wraparoundMode: boolean = this._terminal.wraparoundMode;
+    const insertMode: boolean = this._terminal.insertMode;
+    const curAttr: number = this._terminal.curAttr;
+    let bufferRow = buffer.lines.get(buffer.y + buffer.ybase);
+
+    this._terminal.updateRange(buffer.y);
+    for (let stringPosition = start; stringPosition < end; ++stringPosition) {
+      char = data.charAt(stringPosition);
+      code = data.charCodeAt(stringPosition);
+
+      // surrogate pair handling
+      if (0xD800 <= code && code <= 0xDBFF) {
+        // we got a surrogate high
+        // get surrogate low (next 2 bytes)
+        low = data.charCodeAt(stringPosition + 1);
+        if (isNaN(low)) {
+          // end of data stream, save surrogate high
+          this._surrogateHigh = char;
+          continue;
+        }
+        code = ((code - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000;
+        char += data.charAt(stringPosition + 1);
+      }
+      // surrogate low - already handled above
+      if (0xDC00 <= code && code <= 0xDFFF) {
+        continue;
+      }
 
       // calculate print space
       // expensive call, therefore we save width in line buffer
-      const chWidth = wcwidth(code);
+      chWidth = wcwidth(code);
 
-      if (this._terminal.charset && this._terminal.charset[char]) {
-        char = this._terminal.charset[char];
+      // get charset replacement character
+      if (charset) {
+        char = charset[char] || char;
+        code = char.charCodeAt(0);
       }
 
-      if (this._terminal.options.screenReaderMode) {
+      if (screenReaderMode) {
         this._terminal.emit('a11y.char', char);
       }
 
-      let row = buffer.y + buffer.ybase;
-
-      // insert combining char in last cell
+      // insert combining char at last cursor position
       // FIXME: needs handling after cursor jumps
+      // buffer.x should never be 0 for a combining char
+      // since they always follow a cell consuming char
+      // therefore we can test for buffer.x to avoid overflow left
       if (!chWidth && buffer.x) {
-        // dont overflow left
-        if (buffer.lines.get(row)[buffer.x - 1]) {
-          if (!buffer.lines.get(row)[buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
+        if (bufferRow[buffer.x - 1]) {
+          if (!bufferRow[buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
             // found empty cell after fullwidth, need to go 2 cells back
-            if (buffer.lines.get(row)[buffer.x - 2]) {
-              buffer.lines.get(row)[buffer.x - 2][CHAR_DATA_CHAR_INDEX] += char;
-              buffer.lines.get(row)[buffer.x - 2][3] = char.charCodeAt(0);
+            // it is save to step 2 cells back here
+            // since an empty cell is only set by fullwidth chars
+            if (bufferRow[buffer.x - 2]) {
+              bufferRow[buffer.x - 2][CHAR_DATA_CHAR_INDEX] += char;
+              bufferRow[buffer.x - 2][CHAR_DATA_CODE_INDEX] = code;
             }
           } else {
-            buffer.lines.get(row)[buffer.x - 1][CHAR_DATA_CHAR_INDEX] += char;
-            buffer.lines.get(row)[buffer.x - 1][3] = char.charCodeAt(0);
+            bufferRow[buffer.x - 1][CHAR_DATA_CHAR_INDEX] += char;
+            bufferRow[buffer.x - 1][CHAR_DATA_CODE_INDEX] = code;
           }
-          this._terminal.updateRange(buffer.y);
         }
-        return;
+        continue;
       }
 
       // goto next line if ch would overflow
       // TODO: needs a global min terminal width of 2
-      if (buffer.x + chWidth - 1 >= this._terminal.cols) {
+      if (buffer.x + chWidth - 1 >= cols) {
         // autowrap - DECAWM
-        if (this._terminal.wraparoundMode) {
+        // automatically wraps to the beginning of the next line
+        if (wraparoundMode) {
           buffer.x = 0;
           buffer.y++;
           if (buffer.y > buffer.scrollBottom) {
@@ -76,42 +407,47 @@ export class InputHandler implements IInputHandler {
             // wrapped line
             (<any>buffer.lines.get(buffer.y)).isWrapped = true;
           }
+          // row changed, get it again
+          bufferRow = buffer.lines.get(buffer.y + buffer.ybase);
         } else {
-          if (chWidth === 2) { // FIXME: check for xterm behavior
-            return;
+          if (chWidth === 2) {
+            // FIXME: check for xterm behavior
+            // What to do here? We got a wide char that does not fit into last cell
+            continue;
           }
+          // FIXME: Do we have to set buffer.x to cols - 1, if not wrapping?
         }
       }
-      row = buffer.y + buffer.ybase;
 
       // insert mode: move characters to right
-      if (this._terminal.insertMode) {
+      // To achieve insert, we remove cells from the right
+      // and insert empty ones at cursor position
+      if (insertMode) {
         // do this twice for a fullwidth char
         for (let moves = 0; moves < chWidth; ++moves) {
-          // remove last cell, if it's width is 0
-          // we have to adjust the second last cell as well
-          const removed = buffer.lines.get(buffer.y + buffer.ybase).pop();
+          // remove last cell
+          // if it's width is 0, we have to adjust the second last cell as well
+          const removed = bufferRow.pop();
           if (removed[CHAR_DATA_WIDTH_INDEX] === 0
-              && buffer.lines.get(row)[this._terminal.cols - 2]
-              && buffer.lines.get(row)[this._terminal.cols - 2][CHAR_DATA_WIDTH_INDEX] === 2) {
-            buffer.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)];
+              && bufferRow[this._terminal.cols - 2]
+              && bufferRow[this._terminal.cols - 2][CHAR_DATA_WIDTH_INDEX] === 2) {
+                bufferRow[this._terminal.cols - 2] = [curAttr, ' ', 1, 32  /* ' '.charCodeAt(0) */ ];
           }
 
           // insert empty cell at cursor
-          buffer.lines.get(row).splice(buffer.x, 0, [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)]);
+          bufferRow.splice(buffer.x, 0, [curAttr, ' ', 1, 32  /* ' '.charCodeAt(0) */ ]);
         }
       }
 
-      buffer.lines.get(row)[buffer.x] = [this._terminal.curAttr, char, chWidth, char.charCodeAt(0)];
-      buffer.x++;
-      this._terminal.updateRange(buffer.y);
+      // write current char to buffer and advance cursor
+      bufferRow[buffer.x++] = [curAttr, char, chWidth, code];
 
-      // fullwidth char - set next cell width to zero and advance cursor
+      // fullwidth char - also set next cell to placeholder stub and advance cursor
       if (chWidth === 2) {
-        buffer.lines.get(row)[buffer.x] = [this._terminal.curAttr, '', 0, undefined];
-        buffer.x++;
+        bufferRow[buffer.x++] = [curAttr, '', 0, undefined];
       }
     }
+    this._terminal.updateRange(buffer.y);
   }
 
   /**
@@ -461,10 +797,10 @@ export class InputHandler implements IInputHandler {
     // make buffer local for faster access
     const buffer = this._terminal.buffer;
 
-    let row: number = buffer.y + buffer.ybase;
+    const row: number = buffer.y + buffer.ybase;
 
-    let scrollBottomRowsOffset = this._terminal.rows - 1 - buffer.scrollBottom;
-    let scrollBottomAbsolute = this._terminal.rows - 1 + buffer.ybase - scrollBottomRowsOffset + 1;
+    const scrollBottomRowsOffset = this._terminal.rows - 1 - buffer.scrollBottom;
+    const scrollBottomAbsolute = this._terminal.rows - 1 + buffer.ybase - scrollBottomRowsOffset + 1;
     while (param--) {
       // test: echo -e '\e[44m\e[1L\e[0m'
       // blankLine(true) - xterm/linux behavior
@@ -551,19 +887,21 @@ export class InputHandler implements IInputHandler {
   /**
    * CSI Ps T  Scroll down Ps lines (default = 1) (SD).
    */
-  public scrollDown(params: number[]): void {
-    let param = params[0] || 1;
+  public scrollDown(params: number[], collect?: string): void {
+    if (params.length < 2 && !collect) {
+      let param = params[0] || 1;
 
-    // make buffer local for faster access
-    const buffer = this._terminal.buffer;
+      // make buffer local for faster access
+      const buffer = this._terminal.buffer;
 
-    while (param--) {
-      buffer.lines.splice(buffer.ybase + buffer.scrollBottom, 1);
-      buffer.lines.splice(buffer.ybase + buffer.scrollTop, 0, this._terminal.blankLine());
+      while (param--) {
+        buffer.lines.splice(buffer.ybase + buffer.scrollBottom, 1);
+        buffer.lines.splice(buffer.ybase + buffer.scrollTop, 0, this._terminal.blankLine());
+      }
+      // this.maxRange();
+      this._terminal.updateRange(buffer.scrollTop);
+      this._terminal.updateRange(buffer.scrollBottom);
     }
-    // this.maxRange();
-    this._terminal.updateRange(buffer.scrollTop);
-    this._terminal.updateRange(buffer.scrollBottom);
   }
 
   /**
@@ -622,7 +960,7 @@ export class InputHandler implements IInputHandler {
    *   [columns] (default = [row,col+1]) (HPR)
    * reuse CSI Ps C ?
    */
-  public HPositionRelative(params: number[]): void {
+  public hPositionRelative(params: number[]): void {
     let param = params[0];
     if (param < 1) {
       param = 1;
@@ -643,7 +981,7 @@ export class InputHandler implements IInputHandler {
     const buffer = this._terminal.buffer;
 
     const line = buffer.lines.get(buffer.ybase + buffer.y);
-    const ch = line[buffer.x - 1] || [this._terminal.defAttr, ' ', 1, 32];
+    const ch = line[buffer.x - 1] || [DEFAULT_ATTR, ' ', 1, 32];
 
     while (param--) {
       line[buffer.x++] = ch;
@@ -687,18 +1025,18 @@ export class InputHandler implements IInputHandler {
    *   xterm/charproc.c - line 2012, for more information.
    *   vim responds with ^[[?0c or ^[[?1c after the terminal's response (?)
    */
-  public sendDeviceAttributes(params: number[]): void {
+  public sendDeviceAttributes(params: number[], collect?: string): void {
     if (params[0] > 0) {
       return;
     }
 
-    if (!this._terminal.prefix) {
+    if (!collect) {
       if (this._terminal.is('xterm') || this._terminal.is('rxvt-unicode') || this._terminal.is('screen')) {
         this._terminal.send(C0.ESC + '[?1;2c');
       } else if (this._terminal.is('linux')) {
         this._terminal.send(C0.ESC + '[?6c');
       }
-    } else if (this._terminal.prefix === '>') {
+    } else if (collect === '>') {
       // xterm and urxvt
       // seem to spit this
       // out around ~370 times (?).
@@ -736,7 +1074,7 @@ export class InputHandler implements IInputHandler {
    *   [rows] (default = [row+1,column])
    * reuse CSI Ps B ?
    */
-  public VPositionRelative(params: number[]): void {
+  public vPositionRelative(params: number[]): void {
     let param = params[0];
     if (param < 1) {
       param = 1;
@@ -756,7 +1094,7 @@ export class InputHandler implements IInputHandler {
    *   Horizontal and Vertical Position [row;column] (default =
    *   [1,1]) (HVP).
    */
-  public HVPosition(params: number[]): void {
+  public hVPosition(params: number[]): void {
     if (params[0] < 1) params[0] = 1;
     if (params[1] < 1) params[1] = 1;
 
@@ -780,7 +1118,7 @@ export class InputHandler implements IInputHandler {
    *   http://vt100.net/annarbor/aaa-ug/section6.html
    */
   public tabClear(params: number[]): void {
-    let param = params[0];
+    const param = params[0];
     if (param <= 0) {
       delete this._terminal.buffer.tabs[this._terminal.buffer.x];
     } else if (param === 3) {
@@ -874,7 +1212,7 @@ export class InputHandler implements IInputHandler {
    * Modes:
    *   http: *vt100.net/docs/vt220-rm/chapter4.html
    */
-  public setMode(params: number[]): void {
+  public setMode(params: number[], collect?: string): void {
     if (params.length > 1) {
       for (let i = 0; i < params.length; i++) {
         this.setMode([params[i]]);
@@ -883,7 +1221,7 @@ export class InputHandler implements IInputHandler {
       return;
     }
 
-    if (!this._terminal.prefix) {
+    if (!collect) {
       switch (params[0]) {
         case 4:
           this._terminal.insertMode = true;
@@ -892,7 +1230,7 @@ export class InputHandler implements IInputHandler {
           // this._t.convertEol = true;
           break;
       }
-    } else if (this._terminal.prefix === '?') {
+    } else if (collect === '?') {
       switch (params[0]) {
         case 1:
           this._terminal.applicationCursor = true;
@@ -1068,7 +1406,7 @@ export class InputHandler implements IInputHandler {
    *     Ps = 1 0 6 1  -> Reset keyboard emulation to Sun/PC style.
    *     Ps = 2 0 0 4  -> Reset bracketed paste mode.
    */
-  public resetMode(params: number[]): void {
+  public resetMode(params: number[], collect?: string): void {
     if (params.length > 1) {
       for (let i = 0; i < params.length; i++) {
         this.resetMode([params[i]]);
@@ -1077,7 +1415,7 @@ export class InputHandler implements IInputHandler {
       return;
     }
 
-    if (!this._terminal.prefix) {
+    if (!collect) {
       switch (params[0]) {
         case 4:
           this._terminal.insertMode = false;
@@ -1086,7 +1424,7 @@ export class InputHandler implements IInputHandler {
           // this._t.convertEol = false;
           break;
       }
-    } else if (this._terminal.prefix === '?') {
+    } else if (collect === '?') {
       switch (params[0]) {
         case 1:
           this._terminal.applicationCursor = false;
@@ -1226,7 +1564,7 @@ export class InputHandler implements IInputHandler {
   public charAttributes(params: number[]): void {
     // Optimize a single SGR0.
     if (params.length === 1 && params[0] === 0) {
-      this._terminal.curAttr = this._terminal.defAttr;
+      this._terminal.curAttr = DEFAULT_ATTR;
       return;
     }
 
@@ -1254,9 +1592,9 @@ export class InputHandler implements IInputHandler {
         bg = p - 100;
       } else if (p === 0) {
         // default
-        flags = this._terminal.defAttr >> 18;
-        fg = (this._terminal.defAttr >> 9) & 0x1ff;
-        bg = this._terminal.defAttr & 0x1ff;
+        flags = DEFAULT_ATTR >> 18;
+        fg = (DEFAULT_ATTR >> 9) & 0x1ff;
+        bg = DEFAULT_ATTR & 0x1ff;
         // flags = 0;
         // fg = 0x1ff;
         // bg = 0x1ff;
@@ -1300,10 +1638,10 @@ export class InputHandler implements IInputHandler {
         flags &= ~FLAGS.INVISIBLE;
       } else if (p === 39) {
         // reset fg
-        fg = (this._terminal.defAttr >> 9) & 0x1ff;
+        fg = (DEFAULT_ATTR >> 9) & 0x1ff;
       } else if (p === 49) {
         // reset bg
-        bg = this._terminal.defAttr & 0x1ff;
+        bg = DEFAULT_ATTR & 0x1ff;
       } else if (p === 38) {
         // fg color 256
         if (params[i + 1] === 2) {
@@ -1336,8 +1674,8 @@ export class InputHandler implements IInputHandler {
         }
       } else if (p === 100) {
         // reset fg/bg
-        fg = (this._terminal.defAttr >> 9) & 0x1ff;
-        bg = this._terminal.defAttr & 0x1ff;
+        fg = (DEFAULT_ATTR >> 9) & 0x1ff;
+        bg = DEFAULT_ATTR & 0x1ff;
       } else {
         this._terminal.error('Unknown SGR attribute: %d.', p);
       }
@@ -1369,8 +1707,8 @@ export class InputHandler implements IInputHandler {
    *   CSI ? 5 3  n  Locator available, if compiled-in, or
    *   CSI ? 5 0  n  No Locator, if not.
    */
-  public deviceStatus(params: number[]): void {
-    if (!this._terminal.prefix) {
+  public deviceStatus(params: number[], collect?: string): void {
+    if (!collect) {
       switch (params[0]) {
         case 5:
           // status report
@@ -1385,7 +1723,7 @@ export class InputHandler implements IInputHandler {
                     + 'R');
           break;
       }
-    } else if (this._terminal.prefix === '?') {
+    } else if (collect === '?') {
       // modern xterm doesnt seem to
       // respond to any of these except ?6, 6, and 5
       switch (params[0]) {
@@ -1421,21 +1759,23 @@ export class InputHandler implements IInputHandler {
    * CSI ! p   Soft terminal reset (DECSTR).
    * http://vt100.net/docs/vt220-rm/table4-10.html
    */
-  public softReset(params: number[]): void {
-    this._terminal.cursorHidden = false;
-    this._terminal.insertMode = false;
-    this._terminal.originMode = false;
-    this._terminal.wraparoundMode = true;  // defaults: xterm - true, vt100 - false
-    this._terminal.applicationKeypad = false; // ?
-    this._terminal.viewport.syncScrollArea();
-    this._terminal.applicationCursor = false;
-    this._terminal.buffer.scrollTop = 0;
-    this._terminal.buffer.scrollBottom = this._terminal.rows - 1;
-    this._terminal.curAttr = this._terminal.defAttr;
-    this._terminal.buffer.x = this._terminal.buffer.y = 0; // ?
-    this._terminal.charset = null;
-    this._terminal.glevel = 0; // ??
-    this._terminal.charsets = [null]; // ??
+  public softReset(params: number[], collect?: string): void {
+    if (collect === '!') {
+      this._terminal.cursorHidden = false;
+      this._terminal.insertMode = false;
+      this._terminal.originMode = false;
+      this._terminal.wraparoundMode = true;  // defaults: xterm - true, vt100 - false
+      this._terminal.applicationKeypad = false; // ?
+      this._terminal.viewport.syncScrollArea();
+      this._terminal.applicationCursor = false;
+      this._terminal.buffer.scrollTop = 0;
+      this._terminal.buffer.scrollBottom = this._terminal.rows - 1;
+      this._terminal.curAttr = DEFAULT_ATTR;
+      this._terminal.buffer.x = this._terminal.buffer.y = 0; // ?
+      this._terminal.charset = null;
+      this._terminal.glevel = 0; // ??
+      this._terminal.charsets = [null]; // ??
+    }
   }
 
   /**
@@ -1448,24 +1788,26 @@ export class InputHandler implements IInputHandler {
    *   Ps = 5  -> blinking bar (xterm).
    *   Ps = 6  -> steady bar (xterm).
    */
-  public setCursorStyle(params?: number[]): void {
-    const param = params[0] < 1 ? 1 : params[0];
-    switch (param) {
-      case 1:
-      case 2:
-        this._terminal.setOption('cursorStyle', 'block');
-        break;
-      case 3:
-      case 4:
-        this._terminal.setOption('cursorStyle', 'underline');
-        break;
-      case 5:
-      case 6:
-        this._terminal.setOption('cursorStyle', 'bar');
-        break;
+  public setCursorStyle(params?: number[], collect?: string): void {
+    if (collect === ' ') {
+      const param = params[0] < 1 ? 1 : params[0];
+      switch (param) {
+        case 1:
+        case 2:
+          this._terminal.setOption('cursorStyle', 'block');
+          break;
+        case 3:
+        case 4:
+          this._terminal.setOption('cursorStyle', 'underline');
+          break;
+        case 5:
+        case 6:
+          this._terminal.setOption('cursorStyle', 'bar');
+          break;
+      }
+      const isBlinking = param % 2 === 1;
+      this._terminal.setOption('cursorBlink', isBlinking);
     }
-    const isBlinking = param % 2 === 1;
-    this._terminal.setOption('cursorBlink', isBlinking);
   }
 
   /**
@@ -1474,8 +1816,8 @@ export class InputHandler implements IInputHandler {
    *   dow) (DECSTBM).
    * CSI ? Pm r
    */
-  public setScrollRegion(params: number[]): void {
-    if (this._terminal.prefix) return;
+  public setScrollRegion(params: number[], collect?: string): void {
+    if (collect) return;
     this._terminal.buffer.scrollTop = (params[0] || 1) - 1;
     this._terminal.buffer.scrollBottom = (params[1] && params[1] <= this._terminal.rows ? params[1] : this._terminal.rows) - 1;
     this._terminal.buffer.x = 0;
@@ -1485,20 +1827,160 @@ export class InputHandler implements IInputHandler {
 
   /**
    * CSI s
+   * ESC 7
    *   Save cursor (ANSI.SYS).
    */
   public saveCursor(params: number[]): void {
     this._terminal.buffer.savedX = this._terminal.buffer.x;
     this._terminal.buffer.savedY = this._terminal.buffer.y;
+    this._terminal.savedCurAttr = this._terminal.curAttr;
   }
 
 
   /**
    * CSI u
+   * ESC 8
    *   Restore cursor (ANSI.SYS).
    */
   public restoreCursor(params: number[]): void {
     this._terminal.buffer.x = this._terminal.buffer.savedX || 0;
     this._terminal.buffer.y = this._terminal.buffer.savedY || 0;
+    this._terminal.curAttr = this._terminal.savedCurAttr || DEFAULT_ATTR;
+  }
+
+
+  /**
+   * OSC 0; <data> ST (set icon name + window title)
+   * OSC 2; <data> ST (set window title)
+   *   Proxy to set window title. Icon name is not supported.
+   */
+  public setTitle(data: string): void {
+    this._terminal.handleTitle(data);
+  }
+
+  /**
+   * ESC E
+   * C1.NEL
+   *   DEC mnemonic: NEL (https://vt100.net/docs/vt510-rm/NEL)
+   *   Moves cursor to first position on next line.
+   */
+  public nextLine(): void {
+    this._terminal.buffer.x = 0;
+    this.index();
+  }
+
+  /**
+   * ESC =
+   *   DEC mnemonic: DECKPAM (https://vt100.net/docs/vt510-rm/DECKPAM.html)
+   *   Enables the numeric keypad to send application sequences to the host.
+   */
+  public keypadApplicationMode(): void {
+    this._terminal.log('Serial port requested application keypad.');
+    this._terminal.applicationKeypad = true;
+    if (this._terminal.viewport) {
+      this._terminal.viewport.syncScrollArea();
+    }
+  }
+
+  /**
+   * ESC >
+   *   DEC mnemonic: DECKPNM (https://vt100.net/docs/vt510-rm/DECKPNM.html)
+   *   Enables the keypad to send numeric characters to the host.
+   */
+  public keypadNumericMode(): void {
+    this._terminal.log('Switching back to normal keypad.');
+    this._terminal.applicationKeypad = false;
+    if (this._terminal.viewport) {
+      this._terminal.viewport.syncScrollArea();
+    }
+  }
+
+  /**
+   * ESC % @
+   * ESC % G
+   *   Select default character set. UTF-8 is not supported (string are unicode anyways)
+   *   therefore ESC % G does the same.
+   */
+  public selectDefaultCharset(): void {
+    this._terminal.setgLevel(0);
+    this._terminal.setgCharset(0, DEFAULT_CHARSET); // US (default)
+  }
+
+  /**
+   * ESC ( C
+   *   Designate G0 Character Set, VT100, ISO 2022.
+   * ESC ) C
+   *   Designate G1 Character Set (ISO 2022, VT100).
+   * ESC * C
+   *   Designate G2 Character Set (ISO 2022, VT220).
+   * ESC + C
+   *   Designate G3 Character Set (ISO 2022, VT220).
+   * ESC - C
+   *   Designate G1 Character Set (VT300).
+   * ESC . C
+   *   Designate G2 Character Set (VT300).
+   * ESC / C
+   *   Designate G3 Character Set (VT300). C = A  -> ISO Latin-1 Supplemental. - Supported?
+   */
+  public selectCharset(collectAndFlag: string): void {
+    if (collectAndFlag.length !== 2) return this.selectDefaultCharset();
+    if (collectAndFlag[0] === '/') return;  // TODO: Is this supported?
+    this._terminal.setgCharset(GLEVEL[collectAndFlag[0]], CHARSETS[collectAndFlag[1]] || DEFAULT_CHARSET);
+  }
+
+  /**
+   * ESC D
+   * C1.IND
+   *   DEC mnemonic: IND (https://vt100.net/docs/vt510-rm/IND.html)
+   *   Moves the cursor down one line in the same column.
+   */
+  public index(): void {
+    this._terminal.index();  // TODO: save to move from terminal?
+  }
+
+  /**
+   * ESC H
+   * C1.HTS
+   *   DEC mnemonic: HTS (https://vt100.net/docs/vt510-rm/HTS.html)
+   *   Sets a horizontal tab stop at the column position indicated by
+   *   the value of the active column when the terminal receives an HTS.
+   */
+  public tabSet(): void {
+    this._terminal.tabSet();  // TODO: save to move from terminal?
+  }
+
+  /**
+   * ESC M
+   * C1.RI
+   *   DEC mnemonic: HTS
+   *   Moves the cursor up one line in the same column. If the cursor is at the top margin,
+   *   the page scrolls down.
+   */
+  public reverseIndex(): void {
+    this._terminal.reverseIndex();  // TODO: save to move from terminal?
+  }
+
+  /**
+   * ESC c
+   *   DEC mnemonic: RIS (https://vt100.net/docs/vt510-rm/RIS.html)
+   *   Reset to initial state.
+   */
+  public reset(): void {
+    this._parser.reset();
+    this._terminal.reset();  // TODO: save to move from terminal?
+  }
+
+  /**
+   * ESC n
+   * ESC o
+   * ESC |
+   * ESC }
+   * ESC ~
+   *   DEC mnemonic: LS (https://vt100.net/docs/vt510-rm/LS.html)
+   *   When you use a locking shift, the character set remains in GL or GR until
+   *   you use another locking shift. (partly supported)
+   */
+  public setgLevel(level: number): void {
+    this._terminal.setgLevel(level);  // TODO: save to move from terminal?
   }
 }

src/Linkifier.test.ts

@@ -4,16 +4,16 @@
  */
 
 import { assert } from 'chai';
-import { IMouseZoneManager, IMouseZone } from './input/Types';
+import { IMouseZoneManager, IMouseZone } from './ui/Types';
 import { ILinkMatcher, LineData, ITerminal } from './Types';
 import { Linkifier } from './Linkifier';
 import { MockBuffer, MockTerminal } from './utils/TestUtils.test';
-import { CircularList } from './utils/CircularList';
+import { CircularList } from './common/CircularList';
 
 class TestLinkifier extends Linkifier {
-  constructor(_terminal: ITerminal) {
-    super(_terminal);
-    Linkifier.TIME_BEFORE_LINKIFY = 0;
+  constructor(terminal: ITerminal) {
+    super(terminal);
+    (<any>Linkifier).TIME_BEFORE_LINKIFY = 0;
   }
 
   public get linkMatchers(): ILinkMatcher[] { return this._linkMatchers; }
@@ -21,6 +21,8 @@ class TestLinkifier extends Linkifier {
 }
 
 class TestMouseZoneManager implements IMouseZoneManager {
+  dispose(): void {
+  }
   public clears: number = 0;
   public zones: IMouseZone[] = [];
   add(zone: IMouseZone): void {
@@ -47,7 +49,7 @@ describe('Linkifier', () => {
   });
 
   function stringToRow(text: string): LineData {
-    let result: LineData = [];
+    const result: LineData = [];
     for (let i = 0; i < text.length; i++) {
       result.push([0, text.charAt(i), 1, text.charCodeAt(i)]);
     }

src/Linkifier.ts

@@ -3,9 +3,9 @@
  * @license MIT
  */
 
-import { IMouseZoneManager } from './input/Types';
+import { IMouseZoneManager } from './ui/Types';
 import { ILinkHoverEvent, ILinkMatcher, LinkMatcherHandler, LinkHoverEventTypes, ILinkMatcherOptions, ILinkifier, ITerminal } from './Types';
-import { MouseZone } from './input/MouseZoneManager';
+import { MouseZone } from './ui/MouseZoneManager';
 import { EventEmitter } from './EventEmitter';
 
 /**
@@ -17,7 +17,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    * the costly operation of searching every row multiple times, potentially a
    * huge amount of times.
    */
-  protected static TIME_BEFORE_LINKIFY = 200;
+  protected static readonly TIME_BEFORE_LINKIFY = 200;
 
   protected _linkMatchers: ILinkMatcher[] = [];
 
@@ -199,11 +199,11 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    */
   private _doLinkifyRow(rowIndex: number, text: string, matcher: ILinkMatcher, offset: number = 0): void {
     // Find the first match
-    let match = text.match(matcher.regex);
+    const match = text.match(matcher.regex);
     if (!match || match.length === 0) {
       return;
     }
-    let uri = match[typeof matcher.matchIndex !== 'number' ? 0 : matcher.matchIndex];
+    const uri = match[typeof matcher.matchIndex !== 'number' ? 0 : matcher.matchIndex];
 
     // Get index, match.index is for the outer match which includes negated chars
     const index = text.indexOf(uri);

src/Parser.ts

@@ -1,673 +0,0 @@
-/**
- * Copyright (c) 2014 The xterm.js authors. All rights reserved.
- * Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
- * @license MIT
- */
-
-import { C0 } from './EscapeSequences';
-import { IInputHandler, IInputHandlingTerminal } from './Types';
-import { CHARSETS, DEFAULT_CHARSET } from './Charsets';
-
-const normalStateHandler: {[key: string]: (parser: Parser, handler: IInputHandler) => void} = {};
-normalStateHandler[C0.BEL] = (parser, handler) => handler.bell();
-normalStateHandler[C0.LF] = (parser, handler) => handler.lineFeed();
-normalStateHandler[C0.VT] = normalStateHandler[C0.LF];
-normalStateHandler[C0.FF] = normalStateHandler[C0.LF];
-normalStateHandler[C0.CR] = (parser, handler) => handler.carriageReturn();
-normalStateHandler[C0.BS] = (parser, handler) => handler.backspace();
-normalStateHandler[C0.HT] = (parser, handler) => handler.tab();
-normalStateHandler[C0.SO] = (parser, handler) => handler.shiftOut();
-normalStateHandler[C0.SI] = (parser, handler) => handler.shiftIn();
-normalStateHandler[C0.ESC] = (parser, handler) => parser.setState(ParserState.ESCAPED);
-
-// TODO: Remove terminal when parser owns params and currentParam
-const escapedStateHandler: {[key: string]: (parser: Parser, terminal: any) => void} = {};
-escapedStateHandler['['] = (parser, terminal) => {
-  // ESC [ Control Sequence Introducer (CSI  is 0x9b)
-  terminal.params = [];
-  terminal.currentParam = 0;
-  parser.setState(ParserState.CSI_PARAM);
-};
-escapedStateHandler[']'] = (parser, terminal) => {
-  // ESC ] Operating System Command (OSC is 0x9d)
-  terminal.params = [];
-  terminal.currentParam = 0;
-  parser.setState(ParserState.OSC);
-};
-escapedStateHandler['P'] = (parser, terminal) => {
-  // ESC P Device Control String (DCS is 0x90)
-  terminal.params = [];
-  terminal.currentParam = 0;
-  parser.setState(ParserState.DCS);
-};
-escapedStateHandler['_'] = (parser, terminal) => {
-  // ESC _ Application Program Command ( APC is 0x9f).
-  parser.setState(ParserState.IGNORE);
-};
-escapedStateHandler['^'] = (parser, terminal) => {
-  // ESC ^ Privacy Message ( PM is 0x9e).
-  parser.setState(ParserState.IGNORE);
-};
-escapedStateHandler['c'] = (parser, terminal) => {
-  // ESC c Full Reset (RIS).
-  terminal.reset();
-};
-escapedStateHandler['E'] = (parser, terminal) => {
-  // ESC E Next Line ( NEL is 0x85).
-  terminal.buffer.x = 0;
-  terminal.index();
-  parser.setState(ParserState.NORMAL);
-};
-escapedStateHandler['D'] = (parser, terminal) => {
-  // ESC D Index ( IND is 0x84).
-  terminal.index();
-  parser.setState(ParserState.NORMAL);
-};
-escapedStateHandler['M'] = (parser, terminal) => {
-  // ESC M Reverse Index ( RI is 0x8d).
-  terminal.reverseIndex();
-  parser.setState(ParserState.NORMAL);
-};
-escapedStateHandler['%'] = (parser, terminal) => {
-  // ESC % Select default/utf-8 character set.
-  // @ = default, G = utf-8
-  terminal.setgLevel(0);
-  terminal.setgCharset(0, DEFAULT_CHARSET); // US (default)
-  parser.setState(ParserState.NORMAL);
-  parser.skipNextChar();
-};
-escapedStateHandler[C0.CAN] = (parser) => parser.setState(ParserState.NORMAL);
-
-const csiParamStateHandler: {[key: string]: (parser: Parser) => void} = {};
-csiParamStateHandler['?'] = (parser) => parser.setPrefix('?');
-csiParamStateHandler['>'] = (parser) => parser.setPrefix('>');
-csiParamStateHandler['!'] = (parser) => parser.setPrefix('!');
-csiParamStateHandler['0'] = (parser) => parser.setParam(parser.getParam() * 10);
-csiParamStateHandler['1'] = (parser) => parser.setParam(parser.getParam() * 10 + 1);
-csiParamStateHandler['2'] = (parser) => parser.setParam(parser.getParam() * 10 + 2);
-csiParamStateHandler['3'] = (parser) => parser.setParam(parser.getParam() * 10 + 3);
-csiParamStateHandler['4'] = (parser) => parser.setParam(parser.getParam() * 10 + 4);
-csiParamStateHandler['5'] = (parser) => parser.setParam(parser.getParam() * 10 + 5);
-csiParamStateHandler['6'] = (parser) => parser.setParam(parser.getParam() * 10 + 6);
-csiParamStateHandler['7'] = (parser) => parser.setParam(parser.getParam() * 10 + 7);
-csiParamStateHandler['8'] = (parser) => parser.setParam(parser.getParam() * 10 + 8);
-csiParamStateHandler['9'] = (parser) => parser.setParam(parser.getParam() * 10 + 9);
-csiParamStateHandler['$'] = (parser) => parser.setPostfix('$');
-csiParamStateHandler['"'] = (parser) => parser.setPostfix('"');
-csiParamStateHandler[' '] = (parser) => parser.setPostfix(' ');
-csiParamStateHandler['\''] = (parser) => parser.setPostfix('\'');
-csiParamStateHandler[';'] = (parser) => parser.finalizeParam();
-csiParamStateHandler[C0.CAN] = (parser) => parser.setState(ParserState.NORMAL);
-
-const csiStateHandler: {[key: string]: (handler: IInputHandler, params: number[], prefix: string, postfix: string, parser: Parser) => void} = {};
-csiStateHandler['@'] = (handler, params, prefix) => handler.insertChars(params);
-csiStateHandler['A'] = (handler, params, prefix) => handler.cursorUp(params);
-csiStateHandler['B'] = (handler, params, prefix) => handler.cursorDown(params);
-csiStateHandler['C'] = (handler, params, prefix) => handler.cursorForward(params);
-csiStateHandler['D'] = (handler, params, prefix) => handler.cursorBackward(params);
-csiStateHandler['E'] = (handler, params, prefix) => handler.cursorNextLine(params);
-csiStateHandler['F'] = (handler, params, prefix) => handler.cursorPrecedingLine(params);
-csiStateHandler['G'] = (handler, params, prefix) => handler.cursorCharAbsolute(params);
-csiStateHandler['H'] = (handler, params, prefix) => handler.cursorPosition(params);
-csiStateHandler['I'] = (handler, params, prefix) => handler.cursorForwardTab(params);
-csiStateHandler['J'] = (handler, params, prefix) => handler.eraseInDisplay(params);
-csiStateHandler['K'] = (handler, params, prefix) => handler.eraseInLine(params);
-csiStateHandler['L'] = (handler, params, prefix) => handler.insertLines(params);
-csiStateHandler['M'] = (handler, params, prefix) => handler.deleteLines(params);
-csiStateHandler['P'] = (handler, params, prefix) => handler.deleteChars(params);
-csiStateHandler['S'] = (handler, params, prefix) => handler.scrollUp(params);
-csiStateHandler['T'] = (handler, params, prefix) => {
-  if (params.length < 2 && !prefix) {
-    handler.scrollDown(params);
-  }
-};
-csiStateHandler['X'] = (handler, params, prefix) => handler.eraseChars(params);
-csiStateHandler['Z'] = (handler, params, prefix) => handler.cursorBackwardTab(params);
-csiStateHandler['`'] = (handler, params, prefix) => handler.charPosAbsolute(params);
-csiStateHandler['a'] = (handler, params, prefix) => handler.HPositionRelative(params);
-csiStateHandler['b'] = (handler, params, prefix) => handler.repeatPrecedingCharacter(params);
-csiStateHandler['c'] = (handler, params, prefix) => handler.sendDeviceAttributes(params);
-csiStateHandler['d'] = (handler, params, prefix) => handler.linePosAbsolute(params);
-csiStateHandler['e'] = (handler, params, prefix) => handler.VPositionRelative(params);
-csiStateHandler['f'] = (handler, params, prefix) => handler.HVPosition(params);
-csiStateHandler['g'] = (handler, params, prefix) => handler.tabClear(params);
-csiStateHandler['h'] = (handler, params, prefix) => handler.setMode(params);
-csiStateHandler['l'] = (handler, params, prefix) => handler.resetMode(params);
-csiStateHandler['m'] = (handler, params, prefix) => handler.charAttributes(params);
-csiStateHandler['n'] = (handler, params, prefix) => handler.deviceStatus(params);
-csiStateHandler['p'] = (handler, params, prefix) => {
-  switch (prefix) {
-    case '!': handler.softReset(params); break;
-  }
-};
-csiStateHandler['q'] = (handler, params, prefix, postfix) => {
-  if (postfix === ' ') {
-    handler.setCursorStyle(params);
-  }
-};
-csiStateHandler['r'] = (handler, params) => handler.setScrollRegion(params);
-csiStateHandler['s'] = (handler, params) => handler.saveCursor(params);
-csiStateHandler['u'] = (handler, params) => handler.restoreCursor(params);
-csiStateHandler[C0.CAN] = (handler, params, prefix, postfix, parser) => parser.setState(ParserState.NORMAL);
-
-export const enum ParserState {
-  NORMAL = 0,
-  ESCAPED = 1,
-  CSI_PARAM = 2,
-  CSI = 3,
-  OSC = 4,
-  CHARSET = 5,
-  DCS = 6,
-  IGNORE = 7
-}
-
-/**
- * The terminal's parser, all input into the terminal goes through the parser
- * which parses and defers the actual input handling the the IInputHandler
- * specified in the constructor.
- */
-export class Parser {
-  private _state: ParserState;
-  private _position: number;
-
-  // TODO: Remove terminal when handler can do everything
-  constructor(
-    private _inputHandler: IInputHandler,
-    private _terminal: any
-  ) {
-    this._state = ParserState.NORMAL;
-  }
-
-  /**
-   * Parse and handle data.
-   *
-   * @param data The data to parse.
-   */
-  public parse(data: string): ParserState {
-    const l = data.length;
-    let cs;
-    let ch;
-    let code;
-    let low;
-
-    const cursorStartX = this._terminal.buffer.x;
-    const cursorStartY = this._terminal.buffer.y;
-
-    if (this._terminal.debug) {
-      this._terminal.log('data: ' + data);
-    }
-
-    this._position = 0;
-    // apply leftover surrogate high from last write
-    if (this._terminal.surrogate_high) {
-      data = this._terminal.surrogate_high + data;
-      this._terminal.surrogate_high = '';
-    }
-
-    for (; this._position < l; this._position++) {
-      ch = data[this._position];
-
-      // FIXME: higher chars than 0xa0 are not allowed in escape sequences
-      //        --> maybe move to default
-      code = data.charCodeAt(this._position);
-      if (0xD800 <= code && code <= 0xDBFF) {
-        // we got a surrogate high
-        // get surrogate low (next 2 bytes)
-        low = data.charCodeAt(this._position + 1);
-        if (isNaN(low)) {
-          // end of data stream, save surrogate high
-          this._terminal.surrogate_high = ch;
-          continue;
-        }
-        code = ((code - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000;
-        ch += data.charAt(this._position + 1);
-      }
-      // surrogate low - already handled above
-      if (0xDC00 <= code && code <= 0xDFFF) {
-        continue;
-      }
-
-      switch (this._state) {
-        case ParserState.NORMAL:
-          if (ch in normalStateHandler) {
-            normalStateHandler[ch](this, this._inputHandler);
-          } else {
-            this._inputHandler.addChar(ch, code);
-          }
-          break;
-        case ParserState.ESCAPED:
-          if (ch in escapedStateHandler) {
-            escapedStateHandler[ch](this, this._terminal);
-            // Skip switch as it was just handled
-            break;
-          }
-          switch (ch) {
-
-            // ESC (,),*,+,-,. Designate G0-G2 Character Set.
-            case '(': // <-- this seems to get all the attention
-            case ')':
-            case '*':
-            case '+':
-            case '-':
-            case '.':
-              switch (ch) {
-                case '(':
-                  this._terminal.gcharset = 0;
-                  break;
-                case ')':
-                  this._terminal.gcharset = 1;
-                  break;
-                case '*':
-                  this._terminal.gcharset = 2;
-                  break;
-                case '+':
-                  this._terminal.gcharset = 3;
-                  break;
-                case '-':
-                  this._terminal.gcharset = 1;
-                  break;
-                case '.':
-                  this._terminal.gcharset = 2;
-                  break;
-              }
-              this._state = ParserState.CHARSET;
-              break;
-
-            // Designate G3 Character Set (VT300).
-            // A = ISO Latin-1 Supplemental.
-            // Not implemented.
-            case '/':
-              this._terminal.gcharset = 3;
-              this._state = ParserState.CHARSET;
-              this._position--;
-              break;
-
-            // ESC N
-            // Single Shift Select of G2 Character Set
-            // ( SS2 is 0x8e). This affects next character only.
-            case 'N':
-              this._state = ParserState.NORMAL;
-              break;
-            // ESC O
-            // Single Shift Select of G3 Character Set
-            // ( SS3 is 0x8f). This affects next character only.
-            case 'O':
-              this._state = ParserState.NORMAL;
-              break;
-            // ESC n
-            // Invoke the G2 Character Set as GL (LS2).
-            case 'n':
-              this._terminal.setgLevel(2);
-              this._state = ParserState.NORMAL;
-              break;
-            // ESC o
-            // Invoke the G3 Character Set as GL (LS3).
-            case 'o':
-              this._terminal.setgLevel(3);
-              this._state = ParserState.NORMAL;
-              break;
-            // ESC |
-            // Invoke the G3 Character Set as GR (LS3R).
-            case '|':
-              this._terminal.setgLevel(3);
-              this._state = ParserState.NORMAL;
-              break;
-            // ESC }
-            // Invoke the G2 Character Set as GR (LS2R).
-            case '}':
-              this._terminal.setgLevel(2);
-              this._state = ParserState.NORMAL;
-              break;
-            // ESC ~
-            // Invoke the G1 Character Set as GR (LS1R).
-            case '~':
-              this._terminal.setgLevel(1);
-              this._state = ParserState.NORMAL;
-              break;
-
-            // ESC 7 Save Cursor (DECSC).
-            case '7':
-              this._inputHandler.saveCursor();
-              this._state = ParserState.NORMAL;
-              break;
-
-            // ESC 8 Restore Cursor (DECRC).
-            case '8':
-              this._inputHandler.restoreCursor();
-              this._state = ParserState.NORMAL;
-              break;
-
-            // ESC # 3 DEC line height/width
-            case '#':
-              this._state = ParserState.NORMAL;
-              this._position++;
-              break;
-
-            // ESC H Tab Set (HTS is 0x88).
-            case 'H':
-              (<IInputHandlingTerminal>this._terminal).tabSet();
-              this._state = ParserState.NORMAL;
-              break;
-
-            // ESC = Application Keypad (DECKPAM).
-            case '=':
-              this._terminal.log('Serial port requested application keypad.');
-              this._terminal.applicationKeypad = true;
-              if (this._terminal.viewport) {
-                this._terminal.viewport.syncScrollArea();
-              }
-              this._state = ParserState.NORMAL;
-              break;
-
-            // ESC > Normal Keypad (DECKPNM).
-            case '>':
-              this._terminal.log('Switching back to normal keypad.');
-              this._terminal.applicationKeypad = false;
-              if (this._terminal.viewport) {
-                this._terminal.viewport.syncScrollArea();
-              }
-              this._state = ParserState.NORMAL;
-              break;
-
-            default:
-              this._state = ParserState.NORMAL;
-              this._terminal.error('Unknown ESC control: %s.', ch);
-              break;
-          }
-          break;
-
-        case ParserState.CHARSET:
-          if (ch in CHARSETS) {
-            cs = CHARSETS[ch];
-            if (ch === '/') { // ISOLatin is actually /A
-              this.skipNextChar();
-            }
-          } else {
-            cs = DEFAULT_CHARSET;
-          }
-          this._terminal.setgCharset(this._terminal.gcharset, cs);
-          this._terminal.gcharset = null;
-          this._state = ParserState.NORMAL;
-          break;
-
-        case ParserState.OSC:
-          // OSC Ps ; Pt ST
-          // OSC Ps ; Pt BEL
-          //   Set Text Parameters.
-          if (ch === C0.ESC || ch === C0.BEL) {
-            if (ch === C0.ESC) this._position++;
-
-            this._terminal.params.push(this._terminal.currentParam);
-
-            switch (this._terminal.params[0]) {
-              case 0:
-              case 1:
-              case 2:
-                if (this._terminal.params[1]) {
-                  this._terminal.title = this._terminal.params[1];
-                  this._terminal.handleTitle(this._terminal.title);
-                }
-                break;
-              case 3:
-                // set X property
-                break;
-              case 4:
-              case 5:
-                // change dynamic colors
-                break;
-              case 10:
-              case 11:
-              case 12:
-              case 13:
-              case 14:
-              case 15:
-              case 16:
-              case 17:
-              case 18:
-              case 19:
-                // change dynamic ui colors
-                break;
-              case 46:
-                // change log file
-                break;
-              case 50:
-                // dynamic font
-                break;
-              case 51:
-                // emacs shell
-                break;
-              case 52:
-                // manipulate selection data
-                break;
-              case 104:
-              case 105:
-              case 110:
-              case 111:
-              case 112:
-              case 113:
-              case 114:
-              case 115:
-              case 116:
-              case 117:
-              case 118:
-                // reset colors
-                break;
-            }
-
-            this._terminal.params = [];
-            this._terminal.currentParam = 0;
-            this._state = ParserState.NORMAL;
-          } else {
-            if (!this._terminal.params.length) {
-              if (ch >= '0' && ch <= '9') {
-                this._terminal.currentParam =
-                  this._terminal.currentParam * 10 + ch.charCodeAt(0) - 48;
-              } else if (ch === ';') {
-                this._terminal.params.push(this._terminal.currentParam);
-                this._terminal.currentParam = '';
-              }
-            } else {
-              this._terminal.currentParam += ch;
-            }
-          }
-          break;
-
-        case ParserState.CSI_PARAM:
-          if (ch in csiParamStateHandler) {
-            csiParamStateHandler[ch](this);
-            break;
-          }
-          this.finalizeParam();
-          // Fall through the CSI as this character should be the CSI code.
-          this._state = ParserState.CSI;
-
-        case ParserState.CSI:
-          if (ch in csiStateHandler) {
-            if (this._terminal.debug) {
-              this._terminal.log(`CSI ${this._terminal.prefix ? this._terminal.prefix : ''} ${this._terminal.params ? this._terminal.params.join(';') : ''} ${this._terminal.postfix ? this._terminal.postfix : ''} ${ch}`);
-            }
-            csiStateHandler[ch](this._inputHandler, this._terminal.params, this._terminal.prefix, this._terminal.postfix, this);
-          } else {
-            this._terminal.error('Unknown CSI code: %s.', ch);
-          }
-
-          this._state = ParserState.NORMAL;
-          this._terminal.prefix = '';
-          this._terminal.postfix = '';
-          break;
-
-        case ParserState.DCS:
-          if (ch === C0.ESC || ch === C0.BEL) {
-            if (ch === C0.ESC) this._position++;
-            let pt;
-            let valid: boolean;
-
-            switch (this._terminal.prefix) {
-              // User-Defined Keys (DECUDK).
-              case '':
-                break;
-
-              // Request Status String (DECRQSS).
-              // test: echo -e '\eP$q"p\e\\'
-              case '$q':
-                pt = this._terminal.currentParam;
-                valid = false;
-
-                switch (pt) {
-                  // DECSCA
-                  case '"q':
-                    pt = '0"q';
-                    break;
-
-                  // DECSCL
-                  case '"p':
-                    pt = '61"p';
-                    break;
-
-                  // DECSTBM
-                  case 'r':
-                    pt = ''
-                      + (this._terminal.buffer.scrollTop + 1)
-                      + ';'
-                      + (this._terminal.buffer.scrollBottom + 1)
-                      + 'r';
-                    break;
-
-                  // SGR
-                  case 'm':
-                    pt = '0m';
-                    break;
-
-                  default:
-                    this._terminal.error('Unknown DCS Pt: %s.', pt);
-                    pt = '';
-                    break;
-                }
-
-                this._terminal.send(C0.ESC + 'P' + +valid + '$r' + pt + C0.ESC + '\\');
-                break;
-
-              // Set Termcap/Terminfo Data (xterm, experimental).
-              case '+p':
-                break;
-
-              // Request Termcap/Terminfo String (xterm, experimental)
-              // Regular xterm does not even respond to this sequence.
-              // This can cause a small glitch in vim.
-              // test: echo -ne '\eP+q6b64\e\\'
-              case '+q':
-                pt = this._terminal.currentParam;
-                valid = false;
-
-                this._terminal.send(C0.ESC + 'P' + +valid + '+r' + pt + C0.ESC + '\\');
-                break;
-
-              default:
-                this._terminal.error('Unknown DCS prefix: %s.', this._terminal.prefix);
-                break;
-            }
-
-            this._terminal.currentParam = 0;
-            this._terminal.prefix = '';
-            this._state = ParserState.NORMAL;
-          } else if (!this._terminal.currentParam) {
-            if (!this._terminal.prefix && ch !== '$' && ch !== '+') {
-              this._terminal.currentParam = ch;
-            } else if (this._terminal.prefix.length === 2) {
-              this._terminal.currentParam = ch;
-            } else {
-              this._terminal.prefix += ch;
-            }
-          } else {
-            this._terminal.currentParam += ch;
-          }
-          break;
-
-        case ParserState.IGNORE:
-          // For PM and APC.
-          if (ch === C0.ESC || ch === C0.BEL) {
-            if (ch === C0.ESC) this._position++;
-            this._state = ParserState.NORMAL;
-          }
-          break;
-      }
-    }
-
-    // Fire the cursormove event if it's moved. This is done inside the parser
-    // as a render cannot happen in the middle of a parsing round.
-    if (this._terminal.buffer.x !== cursorStartX || this._terminal.buffer.y !== cursorStartY) {
-      this._terminal.emit('cursormove');
-    }
-
-    return this._state;
-  }
-
-  /**
-   * Set the parser's current parsing state.
-   *
-   * @param state The new state.
-   */
-  public setState(state: ParserState): void {
-    this._state = state;
-  }
-
-  /**
-   * Sets the parsier's current prefix. CSI codes can have prefixes of '?', '>'
-   * or '!'.
-   *
-   * @param prefix The prefix.
-   */
-  public setPrefix(prefix: string): void {
-    this._terminal.prefix = prefix;
-  }
-
-  /**
-   * Sets the parsier's current prefix. CSI codes can have postfixes of '$',
-   * '"', ' ', '\''.
-   *
-   * @param postfix The postfix.
-   */
-  public setPostfix(postfix: string): void {
-    this._terminal.postfix = postfix;
-  }
-
-  /**
-   * Sets the parser's current parameter.
-   *
-   * @param param the parameter.
-   */
-  public setParam(param: number): void {
-    this._terminal.currentParam = param;
-  }
-
-  /**
-   * Gets the parser's current parameter.
-   */
-  public getParam(): number {
-    return this._terminal.currentParam;
-  }
-
-  /**
-   * Finalizes the parser's current parameter, adding it to the list of
-   * parameters and setting the new current parameter to 0.
-   */
-  public finalizeParam(): void {
-    this._terminal.params.push(this._terminal.currentParam);
-    this._terminal.currentParam = 0;
-  }
-
-  /**
-   * Tell the parser to skip the next character.
-   */
-  public skipNextChar(): void {
-    this._position++;
-  }
-
-  /**
-   * Tell the parser to repeat parsing the current character (for example if it
-   * needs parsing using a different state.
-   */
-  // public repeatChar(): void {
-  //   this._position--;
-  // }
-}

src/SelectionManager.test.ts

@@ -4,8 +4,8 @@
  */
 
 import { assert } from 'chai';
-import { CharMeasure } from './utils/CharMeasure';
-import { SelectionManager } from './SelectionManager';
+import { CharMeasure } from './ui/CharMeasure';
+import { SelectionManager, SelectionMode } from './SelectionManager';
 import { SelectionModel } from './SelectionModel';
 import { BufferSet } from './BufferSet';
 import { LineData, CharData, ITerminal, IBuffer } from './Types';
@@ -25,6 +25,8 @@ class TestSelectionManager extends SelectionManager {
 
   public get model(): SelectionModel { return this._model; }
 
+  public set selectionMode(mode: SelectionMode) { this._activeSelectionMode = mode; }
+
   public selectLineAt(line: number): void { this._selectLineAt(line); }
   public selectWordAt(coords: [number, number]): void { this._selectWordAt(coords, true); }
 
@@ -51,7 +53,7 @@ describe('SelectionManager', () => {
   });
 
   function stringToRow(text: string): LineData {
-    let result: LineData = [];
+    const result: LineData = [];
     for (let i = 0; i < text.length; i++) {
       result.push([0, text.charAt(i), 1, text.charCodeAt(i)]);
     }
@@ -298,6 +300,16 @@ describe('SelectionManager', () => {
       assert.deepEqual(selectionManager.model.finalSelectionStart, [0, 0]);
       assert.deepEqual(selectionManager.model.finalSelectionEnd, [terminal.cols, 0], 'The actual selection spans the entire column');
     });
+    it('should select the entire wrapped line', () => {
+      buffer.lines.set(0, stringToRow('foo'));
+      const line2 = stringToRow('bar');
+      (<any>line2).isWrapped = true;
+      buffer.lines.set(1, line2);
+      selectionManager.selectLineAt(0);
+      assert.equal(selectionManager.selectionText, 'foobar', 'The selected text is correct');
+      assert.deepEqual(selectionManager.model.finalSelectionStart, [0, 0]);
+      assert.deepEqual(selectionManager.model.finalSelectionEnd, [terminal.cols, 1], 'The actual selection spans the entire column');
+    });
   });
 
   describe('selectAll', () => {
@@ -368,4 +380,61 @@ describe('SelectionManager', () => {
       assert.equal(selectionManager.hasSelection, true);
     });
   });
+
+  describe('column selection', () => {
+    it('should select a column of text', () => {
+      buffer.lines.length = 3;
+      buffer.lines.set(0, stringToRow('abcdefghij'));
+      buffer.lines.set(1, stringToRow('klmnopqrst'));
+      buffer.lines.set(2, stringToRow('uvwxyz'));
+
+      selectionManager.selectionMode = SelectionMode.COLUMN;
+      selectionManager.model.selectionStart = [2, 0];
+      selectionManager.model.selectionEnd = [4, 2];
+
+      assert.equal(selectionManager.selectionText, 'cd\nmn\nwx');
+    });
+
+    it('should select a column of text without chopping up double width characters', () => {
+      buffer.lines.length = 3;
+      buffer.lines.set(0, stringToRow('a'));
+      buffer.lines.set(1, stringToRow('語'));
+      buffer.lines.set(2, stringToRow('b'));
+
+      selectionManager.selectionMode = SelectionMode.COLUMN;
+      selectionManager.model.selectionStart = [0, 0];
+      selectionManager.model.selectionEnd = [1, 2];
+
+      assert.equal(selectionManager.selectionText, 'a\n語\nb');
+    });
+
+    it('should select a column of text with single character emojis', () => {
+      buffer.lines.length = 3;
+      buffer.lines.set(0, stringToRow('a'));
+      buffer.lines.set(1, stringToRow('☃'));
+      buffer.lines.set(2, stringToRow('c'));
+
+      selectionManager.selectionMode = SelectionMode.COLUMN;
+      selectionManager.model.selectionStart = [0, 0];
+      selectionManager.model.selectionEnd = [1, 2];
+
+      assert.equal(selectionManager.selectionText, 'a\n☃\nc');
+    });
+
+    it('should select a column of text with double character emojis', () => {
+      // TODO the case this is testing works for me in the demo webapp,
+      // but doing it programmatically fails.
+      buffer.lines.length = 3;
+      buffer.lines.set(0, stringToRow('a '));
+      buffer.lines.set(1, stringArrayToRow(['😁', ' ']));
+      buffer.lines.set(2, stringToRow('c '));
+
+      selectionManager.selectionMode = SelectionMode.COLUMN;
+      selectionManager.model.selectionStart = [0, 0];
+      selectionManager.model.selectionEnd = [1, 2];
+
+      assert.equal(selectionManager.selectionText, 'a\n😁\nc');
+    });
+  });
 });
+

src/SelectionManager.ts

@@ -6,7 +6,7 @@
 import { ITerminal, ISelectionManager, IBuffer, CharData, XtermListener } from './Types';
 import { MouseHelper } from './utils/MouseHelper';
 import * as Browser from './shared/utils/Browser';
-import { CharMeasure } from './utils/CharMeasure';
+import { CharMeasure } from './ui/CharMeasure';
 import { EventEmitter } from './EventEmitter';
 import { SelectionModel } from './SelectionModel';
 import { CHAR_DATA_WIDTH_INDEX, CHAR_DATA_CHAR_INDEX } from './Buffer';
@@ -54,10 +54,11 @@ interface IWordPosition {
 /**
  * A selection mode, this drives how the selection behaves on mouse move.
  */
-const enum SelectionMode {
+export const enum SelectionMode {
   NORMAL,
   WORD,
-  LINE
+  LINE,
+  COLUMN
 }
 
 /**
@@ -80,7 +81,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
   /**
    * The current selection mode.
    */
-  private _activeSelectionMode: SelectionMode;
+  protected _activeSelectionMode: SelectionMode;
 
   /**
    * A setInterval timer that is active while the mouse is down whose callback
@@ -116,6 +117,11 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
     this._activeSelectionMode = SelectionMode.NORMAL;
   }
 
+  public dispose(): void {
+    super.dispose();
+    this._removeMouseDownListeners();
+  }
+
   private get _buffer(): IBuffer {
     return this._terminal.buffers.active;
   }
@@ -177,30 +183,43 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
       return '';
     }
 
-    // Get first row
-    const startRowEndCol = start[1] === end[1] ? end[0] : null;
-    let result: string[] = [];
-    result.push(this._buffer.translateBufferLineToString(start[1], true, start[0], startRowEndCol));
+    const result: string[] = [];
 
-    // Get middle rows
-    for (let i = start[1] + 1; i <= end[1] - 1; i++) {
-      const bufferLine = this._buffer.lines.get(i);
-      const lineText = this._buffer.translateBufferLineToString(i, true);
-      if ((<any>bufferLine).isWrapped) {
-        result[result.length - 1] += lineText;
-      } else {
+    if (this._activeSelectionMode === SelectionMode.COLUMN) {
+      // Ignore zero width selections
+      if (start[0] === end[0]) {
+        return '';
+      }
+
+      for (let i = start[1]; i <= end[1]; i++) {
+        const lineText = this._buffer.translateBufferLineToString(i, true, start[0], end[0]);
         result.push(lineText);
       }
-    }
+    } else {
+      // Get first row
+      const startRowEndCol = start[1] === end[1] ? end[0] : null;
+      result.push(this._buffer.translateBufferLineToString(start[1], true, start[0], startRowEndCol));
 
-    // Get final row
-    if (start[1] !== end[1]) {
-      const bufferLine = this._buffer.lines.get(end[1]);
-      const lineText = this._buffer.translateBufferLineToString(end[1], true, 0, end[0]);
-      if ((<any>bufferLine).isWrapped) {
-        result[result.length - 1] += lineText;
-      } else {
-        result.push(lineText);
+      // Get middle rows
+      for (let i = start[1] + 1; i <= end[1] - 1; i++) {
+        const bufferLine = this._buffer.lines.get(i);
+        const lineText = this._buffer.translateBufferLineToString(i, true);
+        if ((<any>bufferLine).isWrapped) {
+          result[result.length - 1] += lineText;
+        } else {
+          result.push(lineText);
+        }
+      }
+
+      // Get final row
+      if (start[1] !== end[1]) {
+        const bufferLine = this._buffer.lines.get(end[1]);
+        const lineText = this._buffer.translateBufferLineToString(end[1], true, 0, end[0]);
+        if ((<any>bufferLine).isWrapped) {
+          result[result.length - 1] += lineText;
+        } else {
+          result.push(lineText);
+        }
       }
     }
 
@@ -249,7 +268,11 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    */
   private _refresh(): void {
     this._refreshAnimationFrame = null;
-    this.emit('refresh', { start: this._model.finalSelectionStart, end: this._model.finalSelectionEnd });
+    this.emit('refresh', {
+      start: this._model.finalSelectionStart,
+      end: this._model.finalSelectionEnd,
+      columnSelectMode: this._activeSelectionMode === SelectionMode.COLUMN
+    });
   }
 
   /**
@@ -358,7 +381,11 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param event The mouse event.
    */
   public shouldForceSelection(event: MouseEvent): boolean {
-    return Browser.isMac ? event.altKey : event.shiftKey;
+    if (Browser.isMac) {
+      return event.altKey && this._terminal.options.macOptionClickForcesSelection;
+    }
+
+    return event.shiftKey;
   }
 
   /**
@@ -449,7 +476,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
   private _onSingleClick(event: MouseEvent): void {
     this._model.selectionStartLength = 0;
     this._model.isSelectAllActive = false;
-    this._activeSelectionMode = SelectionMode.NORMAL;
+    this._activeSelectionMode = this.shouldColumnSelect(event) ? SelectionMode.COLUMN : SelectionMode.NORMAL;
 
     // Initialize the new selection
     this._model.selectionStart = this._getMouseBufferCoords(event);
@@ -502,6 +529,14 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
     }
   }
 
+  /**
+   * Returns whether the selection manager should operate in column select mode
+   * @param event the mouse or keyboard event
+   */
+  public shouldColumnSelect(event: KeyboardEvent | MouseEvent): boolean {
+    return event.altKey && !(Browser.isMac && this._terminal.options.macOptionClickForcesSelection);
+  }
+
   /**
    * Handles the mousemove event when the mouse button is down, recording the
    * end of the selection and refreshing the selection.
@@ -586,7 +621,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param event The mouseup event.
    */
   private _onMouseUp(event: MouseEvent): void {
-    let timeElapsed = event.timeStamp - this._mouseDownTimeStamp;
+    const timeElapsed = event.timeStamp - this._mouseDownTimeStamp;
 
     this._removeMouseDownListeners();
 
@@ -803,7 +838,9 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param line The line index.
    */
   protected _selectLineAt(line: number): void {
-    this._model.selectionStart = [0, line];
-    this._model.selectionStartLength = this._terminal.cols;
+    const wrappedRange = this._buffer.getWrappedRangeForLine(line);
+    this._model.selectionStart = [0, wrappedRange.first];
+    this._model.selectionEnd = [this._terminal.cols, wrappedRange.last];
+    this._model.selectionStartLength = 0;
   }
 }

src/Terminal.integration.ts

@@ -14,6 +14,11 @@ import * as pty from 'node-pty';
 import { assert } from 'chai';
 import { Terminal } from './Terminal';
 import { CHAR_DATA_CHAR_INDEX } from './Buffer';
+import { IViewport } from './Types';
+
+class TestTerminal extends Terminal {
+  innerWrite(): void { this._innerWrite(); }
+}
 
 let primitivePty: any;
 
@@ -24,8 +29,8 @@ let primitivePty: any;
 function ptyWriteRead(data: string, cb: (result: string) => void): void {
   fs.writeSync(primitivePty.slave, data);
   setTimeout(() => {
-    let b = new Buffer(64000);
-    let bytes = fs.readSync(primitivePty.master, b, 0, 64000, null);
+    const b = new Buffer(64000);
+    const bytes = fs.readSync(primitivePty.master, b, 0, 64000, null);
     cb(b.toString('utf8', 0, bytes));
   });
 }
@@ -45,7 +50,7 @@ function formatError(input: string, output: string, expected: string): string {
       return '\x1b[33m' + (' ' + counter).slice(-2) + color + s;
     };
   }
-  let line80 = '12345678901234567890123456789012345678901234567890123456789012345678901234567890';
+  const line80 = '12345678901234567890123456789012345678901234567890123456789012345678901234567890';
   let s = '';
   s += '\n\x1b[34m' + JSON.stringify(input);
   s += '\n\x1b[33m  ' + line80 + '\n';
@@ -74,34 +79,34 @@ function terminalToString(term: Terminal): string {
 
 // Skip tests on Windows since pty.open isn't supported
 if (os.platform() !== 'win32') {
-  let CONSOLE_LOG = console.log;
+  const consoleLog = console.log;
 
   // expect files need terminal at 80x25!
-  let COLS = 80;
-  let ROWS = 25;
+  const cols = 80;
+  const rows = 25;
 
   /** some helpers for pty interaction */
   // we need a pty in between to get the termios decorations
   // for the basic test cases a raw pty device is enough
-  primitivePty = pty.native.open(COLS, ROWS);
+  primitivePty = (<any>pty).native.open(cols, rows);
 
   /** tests */
   describe('xterm output comparison', () => {
-    let xterm;
+    let xterm: TestTerminal;
 
     beforeEach(() => {
-      xterm = new Terminal({ cols: COLS, rows: ROWS });
+      xterm = new TestTerminal({ cols: cols, rows: rows });
       xterm.refresh = () => {};
-      xterm.viewport = {
+      xterm.viewport = <IViewport>{
         syncScrollArea: () => {}
       };
     });
 
     // omit stack trace for escape sequence files
     Error.stackTraceLimit = 0;
-    let files = glob.sync('**/escape_sequence_files/*.in', { cwd: path.join(__dirname, '..')});
+    const files = glob.sync('**/escape_sequence_files/*.in', { cwd: path.join(__dirname, '..')});
     // only successful tests for now
-    let skip = [
+    const skip = [
       10, 16, 17, 19, 32, 33, 34, 35, 36, 39,
       40, 42, 43, 44, 45, 46, 47, 48, 49, 50,
       51, 52, 54, 55, 56, 57, 58, 59, 60, 61,
@@ -118,21 +123,22 @@ if (os.platform() !== 'win32') {
       ((filename: string) => {
         it(filename.split('/').slice(-1)[0], done => {
           ptyReset(() => {
-            let inFile = fs.readFileSync(filename, 'utf8');
+            const inFile = fs.readFileSync(filename, 'utf8');
             ptyWriteRead(inFile, fromPty => {
               // uncomment this to get log from terminal
               // console.log = function(){};
 
               // Perform a synchronous .write(data)
               xterm.writeBuffer.push(fromPty);
-              xterm._innerWrite();
+              xterm.innerWrite();
+
+              const fromEmulator = terminalToString(xterm);
+              console.log = consoleLog;
+              const expected = fs.readFileSync(filename.split('.')[0] + '.text', 'utf8');
 
-              let fromEmulator = terminalToString(xterm);
-              console.log = CONSOLE_LOG;
-              let expected = fs.readFileSync(filename.split('.')[0] + '.text', 'utf8');
               // Some of the tests have whitespace on the right of lines, we trim all the linex
               // from xterm.js so ignore this for now at least.
-              let expectedRightTrimmed = expected.split('\n').map(l => l.replace(/\s+$/, '')).join('\n');
+              const expectedRightTrimmed = expected.split('\n').map(l => l.replace(/\s+$/, '')).join('\n');
               if (fromEmulator !== expectedRightTrimmed) {
                 // uncomment to get noisy output
                 throw new Error(formatError(inFile, fromEmulator, expected));
@@ -155,7 +161,7 @@ describe('typings', () => {
       tsc += '.cmd';
     }
     const fixtureDir = path.join(__dirname, '..', 'fixtures', 'typings-test');
-    let result = cp.spawnSync(tsc, { cwd: fixtureDir });
+    const result = cp.spawnSync(tsc, { cwd: fixtureDir });
     assert.equal(result.status, 0, `build did not succeed:\nstdout: ${result.stdout.toString()}\nstderr: ${result.stderr.toString()}\n`);
     // Clean up
     fs.unlinkSync(path.join(fixtureDir, 'typings-test.js'));

src/Terminal.test.ts

@@ -5,7 +5,6 @@
 
 import { assert, expect } from 'chai';
 import { Terminal } from './Terminal';
-import * as attach from './addons/attach/attach';
 import { MockViewport, MockCompositionHelper, MockRenderer } from './utils/TestUtils.test';
 import { CHAR_DATA_CHAR_INDEX, CHAR_DATA_WIDTH_INDEX } from './Buffer';
 
@@ -13,7 +12,6 @@ const INIT_COLS = 80;
 const INIT_ROWS = 24;
 
 class TestTerminal extends Terminal {
-  public evaluateKeyEscapeSequence(ev: any): {cancel: boolean, key: string, scrollLines: number} { return this._evaluateKeyEscapeSequence(<KeyboardEvent>ev); }
   public keyDown(ev: any): boolean { return this._keyDown(ev); }
   public keyPress(ev: any): boolean { return this._keyPress(ev); }
 }
@@ -53,13 +51,6 @@ describe('term.js addons', () => {
     });
   });
 
-  it('should apply addons with Terminal.applyAddon', () => {
-    Terminal.applyAddon(attach);
-    // Test that addon was applied successfully, adding attach to Terminal's
-    // prototype.
-    assert.equal(typeof (<any>Terminal).prototype.attach, 'function');
-  });
-
   describe('getOption', () => {
     it('should retrieve the option correctly', () => {
       // In the `options` namespace.
@@ -77,13 +68,13 @@ describe('term.js addons', () => {
   });
 
   describe('attachCustomKeyEventHandler', () => {
-    let evKeyDown = <KeyboardEvent>{
+    const evKeyDown = <KeyboardEvent>{
       preventDefault: () => {},
       stopPropagation: () => {},
       type: 'keydown',
       keyCode: 77
     };
-    let evKeyPress = <KeyboardEvent>{
+    const evKeyPress = <KeyboardEvent>{
       preventDefault: () => {},
       stopPropagation: () => {},
       type: 'keypress',
@@ -129,9 +120,20 @@ describe('term.js addons', () => {
     });
   });
 
+  describe('reset', () => {
+    it('should not affect cursorState', () => {
+      term.cursorState = 1;
+      term.reset();
+      assert.equal(term.cursorState, 1);
+      term.cursorState = 0;
+      term.reset();
+      assert.equal(term.cursorState, 0);
+    });
+  });
+
   describe('clear', () => {
     it('should clear a buffer equal to rows', () => {
-      let promptLine = term.buffer.lines.get(term.buffer.ybase + term.buffer.y);
+      const promptLine = term.buffer.lines.get(term.buffer.ybase + term.buffer.y);
       term.clear();
       assert.equal(term.buffer.y, 0);
       assert.equal(term.buffer.ybase, 0);
@@ -148,7 +150,7 @@ describe('term.js addons', () => {
         term.write('test\n');
       }
 
-      let promptLine = term.buffer.lines.get(term.buffer.ybase + term.buffer.y);
+      const promptLine = term.buffer.lines.get(term.buffer.ybase + term.buffer.y);
       term.clear();
       assert.equal(term.buffer.y, 0);
       assert.equal(term.buffer.ybase, 0);
@@ -160,7 +162,7 @@ describe('term.js addons', () => {
       }
     });
     it('should not break the prompt when cleared twice', () => {
-      let promptLine = term.buffer.lines.get(term.buffer.ybase + term.buffer.y);
+      const promptLine = term.buffer.lines.get(term.buffer.ybase + term.buffer.y);
       term.clear();
       term.clear();
       assert.equal(term.buffer.y, 0);
@@ -176,7 +178,7 @@ describe('term.js addons', () => {
 
   describe('scroll', () => {
     describe('scrollLines', () => {
-      let startYDisp;
+      let startYDisp: number;
       beforeEach(() => {
         for (let i = 0; i < term.rows * 2; i++) {
           term.writeln('test');
@@ -211,7 +213,7 @@ describe('term.js addons', () => {
     });
 
     describe('scrollPages', () => {
-      let startYDisp;
+      let startYDisp: number;
       beforeEach(() => {
         for (let i = 0; i < term.rows * 3; i++) {
           term.writeln('test');
@@ -248,7 +250,7 @@ describe('term.js addons', () => {
     });
 
     describe('scrollToBottom', () => {
-      let startYDisp;
+      let startYDisp: number;
       beforeEach(() => {
         for (let i = 0; i < term.rows * 3; i++) {
           term.writeln('test');
@@ -269,7 +271,7 @@ describe('term.js addons', () => {
     });
 
     describe('scrollToLine', () => {
-      let startYDisp;
+      let startYDisp: number;
       beforeEach(() => {
         for (let i = 0; i < term.rows * 3; i++) {
           term.writeln('test');
@@ -296,22 +298,19 @@ describe('term.js addons', () => {
       });
     });
 
-    describe('keyDown', () => {
+    describe('keyPress', () => {
       it('should scroll down, when a key is pressed and terminal is scrolled up', () => {
-        // Override _evaluateKeyEscapeSequence to return cancel code
-        (<any>term)._evaluateKeyEscapeSequence = () => {
-          return { key: 'a' };
-        };
-        let event = <KeyboardEvent>{
+        const event = <KeyboardEvent>{
           type: 'keydown',
-          keyCode: 0,
+          key: 'a',
+          keyCode: 65,
           preventDefault: () => {},
           stopPropagation: () => {}
         };
 
         term.buffer.ydisp = 0;
         term.buffer.ybase = 40;
-        term.keyDown(event);
+        term.keyPress(event);
 
         // Ensure that now the terminal is scrolled to bottom
         assert.equal(term.buffer.ydisp, term.buffer.ybase);
@@ -322,7 +321,7 @@ describe('term.js addons', () => {
         for (let i = 0; i < term.rows * 3; i++) {
           term.writeln('test');
         }
-        let startYDisp = (term.rows * 2) + 1;
+        const startYDisp = (term.rows * 2) + 1;
         term.attachCustomKeyEventHandler(() => {
           return false;
         });
@@ -330,7 +329,7 @@ describe('term.js addons', () => {
         assert.equal(term.buffer.ydisp, startYDisp);
         term.scrollLines(-1);
         assert.equal(term.buffer.ydisp, startYDisp - 1);
-        term.keyDown(<KeyboardEvent>{ keyCode: 0 });
+        term.keyPress(<KeyboardEvent>{ keyCode: 0 });
         assert.equal(term.buffer.ydisp, startYDisp - 1);
       });
     });
@@ -468,252 +467,9 @@ describe('term.js addons', () => {
     });
   });
 
-  describe('evaluateKeyEscapeSequence', () => {
-    it('should return the correct escape sequence for unmodified keys', () => {
-      // Backspace
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 8 }).key, '\x7f'); // ^?
-      // Tab
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 9 }).key, '\t');
-      // Return/enter
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 13 }).key, '\r'); // CR
-      // Escape
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 27 }).key, '\x1b');
-      // Page up, page down
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 33 }).key, '\x1b[5~'); // CSI 5 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 34 }).key, '\x1b[6~'); // CSI 6 ~
-      // End, Home
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 35 }).key, '\x1b[F'); // SS3 F
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 36 }).key, '\x1b[H'); // SS3 H
-      // Left, up, right, down arrows
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 37 }).key, '\x1b[D'); // CSI D
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 38 }).key, '\x1b[A'); // CSI A
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 39 }).key, '\x1b[C'); // CSI C
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 40 }).key, '\x1b[B'); // CSI B
-      // Insert
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 45 }).key, '\x1b[2~'); // CSI 2 ~
-      // Delete
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 46 }).key, '\x1b[3~'); // CSI 3 ~
-      // F1-F12
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 112 }).key, '\x1bOP'); // SS3 P
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 113 }).key, '\x1bOQ'); // SS3 Q
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 114 }).key, '\x1bOR'); // SS3 R
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 115 }).key, '\x1bOS'); // SS3 S
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 116 }).key, '\x1b[15~'); // CSI 1 5 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 117 }).key, '\x1b[17~'); // CSI 1 7 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 118 }).key, '\x1b[18~'); // CSI 1 8 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 119 }).key, '\x1b[19~'); // CSI 1 9 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 120 }).key, '\x1b[20~'); // CSI 2 0 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 121 }).key, '\x1b[21~'); // CSI 2 1 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 122 }).key, '\x1b[23~'); // CSI 2 3 ~
-      assert.equal(term.evaluateKeyEscapeSequence({ keyCode: 123 }).key, '\x1b[24~'); // CSI 2 4 ~
-    });
-    it('should return \\x1b[3;5~ for ctrl+delete', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 46 }).key, '\x1b[3;5~');
-    });
-    it('should return \\x1b[3;2~ for shift+delete', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 46 }).key, '\x1b[3;2~');
-    });
-    it('should return \\x1b[3;3~ for alt+delete', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 46 }).key, '\x1b[3;3~');
-    });
-    it('should return \\x1b[5D for ctrl+left', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 37 }).key, '\x1b[1;5D'); // CSI 5 D
-    });
-    it('should return \\x1b[5C for ctrl+right', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 39 }).key, '\x1b[1;5C'); // CSI 5 C
-    });
-    it('should return \\x1b[5A for ctrl+up', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 38 }).key, '\x1b[1;5A'); // CSI 5 A
-    });
-    it('should return \\x1b[5B for ctrl+down', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 40 }).key, '\x1b[1;5B'); // CSI 5 B
-    });
-
-    describe('On non-macOS platforms', () => {
-      beforeEach(() => {
-        term.browser.isMac = false;
-      });
-      // Evalueate alt + arrow key movement, which is a feature of terminal emulators but not VT100
-      // http://unix.stackexchange.com/a/108106
-      it('should return \\x1b[5D for alt+left', () => {
-        assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 37 }).key, '\x1b[1;5D'); // CSI 5 D
-      });
-      it('should return \\x1b[5C for alt+right', () => {
-        assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 39 }).key, '\x1b[1;5C'); // CSI 5 C
-      });
-      it('should return \\x1ba for alt+a', () => {
-        assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 65 }).key, '\x1ba');
-      });
-    });
-
-    describe('On macOS platforms', () => {
-      beforeEach(() => {
-        term.browser.isMac = true;
-      });
-      it('should return \\x1bb for alt+left', () => {
-        assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 37 }).key, '\x1bb'); // CSI 5 D
-      });
-      it('should return \\x1bf for alt+right', () => {
-        assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 39 }).key, '\x1bf'); // CSI 5 C
-      });
-      it('should return undefined for alt+a', () => {
-        assert.strictEqual(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 65 }).key, undefined);
-      });
-    });
-
-    describe('with macOptionIsMeta', () => {
-      beforeEach(() => {
-        term.browser.isMac = true;
-        term.setOption('macOptionIsMeta', true);
-      });
-      it('should return \\x1ba for alt+a', () => {
-        assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 65 }).key, '\x1ba');
-      });
-    });
-
-    it('should return \\x1b[5A for alt+up', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 38 }).key, '\x1b[1;5A'); // CSI 5 A
-    });
-    it('should return \\x1b[5B for alt+down', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 40 }).key, '\x1b[1;5B'); // CSI 5 B
-    });
-    it('should return the correct escape sequence for modified F1-F12 keys', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 112 }).key, '\x1b[1;2P');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 113 }).key, '\x1b[1;2Q');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 114 }).key, '\x1b[1;2R');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 115 }).key, '\x1b[1;2S');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 116 }).key, '\x1b[15;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 117 }).key, '\x1b[17;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 118 }).key, '\x1b[18;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 119 }).key, '\x1b[19;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 120 }).key, '\x1b[20;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 121 }).key, '\x1b[21;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 122 }).key, '\x1b[23;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ shiftKey: true, keyCode: 123 }).key, '\x1b[24;2~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 112 }).key, '\x1b[1;3P');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 113 }).key, '\x1b[1;3Q');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 114 }).key, '\x1b[1;3R');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 115 }).key, '\x1b[1;3S');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 116 }).key, '\x1b[15;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 117 }).key, '\x1b[17;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 118 }).key, '\x1b[18;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 119 }).key, '\x1b[19;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 120 }).key, '\x1b[20;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 121 }).key, '\x1b[21;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 122 }).key, '\x1b[23;3~');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, keyCode: 123 }).key, '\x1b[24;3~');
-
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 112 }).key, '\x1b[1;5P');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 113 }).key, '\x1b[1;5Q');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 114 }).key, '\x1b[1;5R');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 115 }).key, '\x1b[1;5S');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 116 }).key, '\x1b[15;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 117 }).key, '\x1b[17;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 118 }).key, '\x1b[18;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 119 }).key, '\x1b[19;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 120 }).key, '\x1b[20;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 121 }).key, '\x1b[21;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 122 }).key, '\x1b[23;5~');
-      assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 123 }).key, '\x1b[24;5~');
-    });
-
-    // Characters using ctrl+alt sequences
-    it('should return proper sequence for ctrl+alt+a', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, ctrlKey: true, keyCode: 65 }).key, '\x1b\x01');
-    });
-
-    // Characters using alt sequences (numbers)
-    it('should return proper sequences for alt+0', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 48 }).key, '\x1b0');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 48 }).key, '\x1b)');
-    });
-    it('should return proper sequences for alt+1', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 49 }).key, '\x1b1');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 49 }).key, '\x1b!');
-    });
-    it('should return proper sequences for alt+2', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 50 }).key, '\x1b2');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 50 }).key, '\x1b@');
-    });
-    it('should return proper sequences for alt+3', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 51 }).key, '\x1b3');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 51 }).key, '\x1b#');
-    });
-    it('should return proper sequences for alt+4', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 52 }).key, '\x1b4');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 52 }).key, '\x1b$');
-    });
-    it('should return proper sequences for alt+5', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 53 }).key, '\x1b5');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 53 }).key, '\x1b%');
-    });
-    it('should return proper sequences for alt+6', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 54 }).key, '\x1b6');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 54 }).key, '\x1b^');
-    });
-    it('should return proper sequences for alt+7', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 55 }).key, '\x1b7');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 55 }).key, '\x1b&');
-    });
-    it('should return proper sequences for alt+8', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 56 }).key, '\x1b8');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 56 }).key, '\x1b*');
-    });
-    it('should return proper sequences for alt+9', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 57 }).key, '\x1b9');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 57 }).key, '\x1b(');
-    });
-
-    // Characters using alt sequences (special chars)
-    it('should return proper sequences for alt+;', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 186 }).key, '\x1b;');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 186 }).key, '\x1b:');
-    });
-    it('should return proper sequences for alt+=', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 187 }).key, '\x1b=');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 187 }).key, '\x1b+');
-    });
-    it('should return proper sequences for alt+,', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 188 }).key, '\x1b,');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 188 }).key, '\x1b<');
-    });
-    it('should return proper sequences for alt+-', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 189 }).key, '\x1b-');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 189 }).key, '\x1b_');
-    });
-    it('should return proper sequences for alt+.', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 190 }).key, '\x1b.');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 190 }).key, '\x1b>');
-    });
-    it('should return proper sequences for alt+/', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 191 }).key, '\x1b/');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true, keyCode: 191 }).key, '\x1b?');
-    });
-    it('should return proper sequences for alt+~', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 192 }).key, '\x1b`');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true, keyCode: 192 }).key, '\x1b~');
-    });
-    it('should return proper sequences for alt+[', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 219 }).key, '\x1b[');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 219 }).key, '\x1b{');
-    });
-    it('should return proper sequences for alt+\\', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 220 }).key, '\x1b\\');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 220 }).key, '\x1b|');
-    });
-    it('should return proper sequences for alt+]', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 221 }).key, '\x1b]');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 221 }).key, '\x1b}');
-    });
-    it('should return proper sequences for alt+\'', () => {
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 222 }).key, '\x1b\'');
-      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 222 }).key, '\x1b"');
-    });
-  });
-
   describe('Third level shift', () => {
-    let evKeyDown;
-    let evKeyPress;
+    let evKeyDown: any;
+    let evKeyPress: any;
 
     beforeEach(() => {
       term.handler = () => {};
@@ -784,11 +540,11 @@ describe('term.js addons', () => {
       });
 
       it('should emit key with alt + key on keyPress', (done) => {
-        let keys = ['@', '@', '\\', '\\', '|', '|'];
+        const keys = ['@', '@', '\\', '\\', '|', '|'];
 
         term.on('keypress', (key) => {
           if (key) {
-            let index = keys.indexOf(key);
+            const index = keys.indexOf(key);
             assert(index !== -1, 'Emitted wrong key: ' + key);
             keys.splice(index, 1);
           }
@@ -850,11 +606,11 @@ describe('term.js addons', () => {
       });
 
       it('should emit key with alt + ctrl + key on keyPress', (done) => {
-        let keys = ['@', '@', '\\', '\\', '|', '|'];
+        const keys = ['@', '@', '\\', '\\', '|', '|'];
 
         term.on('keypress', (key) => {
           if (key) {
-            let index = keys.indexOf(key);
+            const index = keys.indexOf(key);
             assert(index !== -1, 'Emitted wrong key: ' + key);
             keys.splice(index, 1);
           }
@@ -895,10 +651,10 @@ describe('term.js addons', () => {
   describe('unicode - surrogates', () => {
     it('2 characters per cell', function (): void {
       this.timeout(10000);  // This is needed because istanbul patches code and slows it down
-      let high = String.fromCharCode(0xD800);
+      const high = String.fromCharCode(0xD800);
       for (let i = 0xDC00; i <= 0xDCFF; ++i) {
         term.write(high + String.fromCharCode(i));
-        let tchar = term.buffer.lines.get(0)[0];
+        const tchar = term.buffer.lines.get(0)[0];
         expect(tchar[CHAR_DATA_CHAR_INDEX]).eql(high + String.fromCharCode(i));
         expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(2);
         expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(1);
@@ -907,7 +663,7 @@ describe('term.js addons', () => {
       }
     });
     it('2 characters at last cell', () => {
-      let high = String.fromCharCode(0xD800);
+      const high = String.fromCharCode(0xD800);
       for (let i = 0xDC00; i <= 0xDCFF; ++i) {
         term.buffer.x = term.cols - 1;
         term.write(high + String.fromCharCode(i));
@@ -918,7 +674,7 @@ describe('term.js addons', () => {
       }
     });
     it('2 characters per cell over line end with autowrap', () => {
-      let high = String.fromCharCode(0xD800);
+      const high = String.fromCharCode(0xD800);
       for (let i = 0xDC00; i <= 0xDCFF; ++i) {
         term.buffer.x = term.cols - 1;
         term.wraparoundMode = true;
@@ -931,7 +687,7 @@ describe('term.js addons', () => {
       }
     });
     it('2 characters per cell over line end without autowrap', () => {
-      let high = String.fromCharCode(0xD800);
+      const high = String.fromCharCode(0xD800);
       for (let i = 0xDC00; i <= 0xDCFF; ++i) {
         term.buffer.x = term.cols - 1;
         term.wraparoundMode = false;
@@ -944,11 +700,11 @@ describe('term.js addons', () => {
       }
     });
     it('splitted surrogates', () => {
-      let high = String.fromCharCode(0xD800);
+      const high = String.fromCharCode(0xD800);
       for (let i = 0xDC00; i <= 0xDCFF; ++i) {
         term.write(high);
         term.write(String.fromCharCode(i));
-        let tchar = term.buffer.lines.get(0)[0];
+        const tchar = term.buffer.lines.get(0)[0];
         expect(tchar[CHAR_DATA_CHAR_INDEX]).eql(high + String.fromCharCode(i));
         expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(2);
         expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(1);
@@ -979,12 +735,12 @@ describe('term.js addons', () => {
       term.wraparoundMode = true;
       term.write(Array(100).join('e\u0301'));
       for (let i = 0; i < term.cols; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('e\u0301');
         expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(2);
         expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(1);
       }
-      let tchar = term.buffer.lines.get(1)[0];
+      const tchar = term.buffer.lines.get(1)[0];
       expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('e\u0301');
       expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(2);
       expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(1);
@@ -993,12 +749,12 @@ describe('term.js addons', () => {
       term.wraparoundMode = true;
       term.write(Array(100).join('\uD800\uDC00\u0301'));
       for (let i = 0; i < term.cols; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('\uD800\uDC00\u0301');
         expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(3);
         expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(1);
       }
-      let tchar = term.buffer.lines.get(1)[0];
+      const tchar = term.buffer.lines.get(1)[0];
       expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('\uD800\uDC00\u0301');
       expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(3);
       expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(1);
@@ -1021,7 +777,7 @@ describe('term.js addons', () => {
       term.wraparoundMode = true;
       term.write(Array(50).join('￥'));
       for (let i = 0; i < term.cols; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         if (i % 2) {
           expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('');
           expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(0);
@@ -1032,7 +788,7 @@ describe('term.js addons', () => {
           expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(2);
         }
       }
-      let tchar = term.buffer.lines.get(1)[0];
+      const tchar = term.buffer.lines.get(1)[0];
       expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('￥');
       expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(1);
       expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(2);
@@ -1042,7 +798,7 @@ describe('term.js addons', () => {
       term.buffer.x = 1;
       term.write(Array(50).join('￥'));
       for (let i = 1; i < term.cols - 1; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         if (!(i % 2)) {
           expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('');
           expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(0);
@@ -1067,7 +823,7 @@ describe('term.js addons', () => {
       term.buffer.x = 1;
       term.write(Array(50).join('￥\u0301'));
       for (let i = 1; i < term.cols - 1; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         if (!(i % 2)) {
           expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('');
           expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(0);
@@ -1091,7 +847,7 @@ describe('term.js addons', () => {
       term.wraparoundMode = true;
       term.write(Array(50).join('￥\u0301'));
       for (let i = 0; i < term.cols; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         if (i % 2) {
           expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('');
           expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(0);
@@ -1102,7 +858,7 @@ describe('term.js addons', () => {
           expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(2);
         }
       }
-      let tchar = term.buffer.lines.get(1)[0];
+      const tchar = term.buffer.lines.get(1)[0];
       expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('￥\u0301');
       expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(2);
       expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(2);
@@ -1112,7 +868,7 @@ describe('term.js addons', () => {
       term.buffer.x = 1;
       term.write(Array(50).join('\ud843\ude6d\u0301'));
       for (let i = 1; i < term.cols - 1; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         if (!(i % 2)) {
           expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('');
           expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(0);
@@ -1136,7 +892,7 @@ describe('term.js addons', () => {
       term.wraparoundMode = true;
       term.write(Array(50).join('\ud843\ude6d\u0301'));
       for (let i = 0; i < term.cols; ++i) {
-        let tchar = term.buffer.lines.get(0)[i];
+        const tchar = term.buffer.lines.get(0)[i];
         if (i % 2) {
           expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('');
           expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(0);
@@ -1147,7 +903,7 @@ describe('term.js addons', () => {
           expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(2);
         }
       }
-      let tchar = term.buffer.lines.get(1)[0];
+      const tchar = term.buffer.lines.get(1)[0];
       expect(tchar[CHAR_DATA_CHAR_INDEX]).eql('\ud843\ude6d\u0301');
       expect(tchar[CHAR_DATA_CHAR_INDEX].length).eql(3);
       expect(tchar[CHAR_DATA_WIDTH_INDEX]).eql(2);

src/Types.ts

@@ -3,9 +3,10 @@
  * @license MIT
  */
 
-import { Terminal as PublicTerminal, ITerminalOptions as IPublicTerminalOptions, IEventEmitter } from 'xterm';
+import { Terminal as PublicTerminal, ITerminalOptions as IPublicTerminalOptions, IEventEmitter, IDisposable } from 'xterm';
 import { IColorSet, IRenderer } from './renderer/Types';
-import { IMouseZoneManager } from './input/Types';
+import { IMouseZoneManager } from './ui/Types';
+import { ICharset } from './core/Types';
 
 export type CustomKeyEventHandler = (event: KeyboardEvent) => boolean;
 
@@ -43,9 +44,7 @@ export interface IInputHandlingTerminal extends IEventEmitter {
   insertMode: boolean;
   wraparoundMode: boolean;
   bracketedPasteMode: boolean;
-  defAttr: number;
   curAttr: number;
-  prefix: string;
   savedCols: number;
   x10Mouse: boolean;
   vt200Mouse: boolean;
@@ -87,7 +86,7 @@ export interface IInputHandlingTerminal extends IEventEmitter {
   tabSet(): void;
 }
 
-export interface IViewport {
+export interface IViewport extends IDisposable {
   scrollBarWidth: number;
   syncScrollArea(): void;
   getLinesScrolled(ev: WheelEvent): number;
@@ -106,10 +105,11 @@ export interface ICompositionHelper {
 }
 
 /**
- * Handles actions generated by the parser.
+ * Calls the parser and handles actions generated by the parser.
  */
 export interface IInputHandler {
-  addChar(char: string, code: number): void;
+  parse(data: string): void;
+  print(data: string, start: number, end: number): void;
 
   /** C0 BEL */ bell(): void;
   /** C0 LF */ lineFeed(): void;
@@ -135,26 +135,49 @@ export interface IInputHandler {
   /** CSI M */ deleteLines(params?: number[]): void;
   /** CSI P */ deleteChars(params?: number[]): void;
   /** CSI S */ scrollUp(params?: number[]): void;
-  /** CSI T */ scrollDown(params?: number[]): void;
+  /** CSI T */ scrollDown(params?: number[], collect?: string): void;
   /** CSI X */ eraseChars(params?: number[]): void;
   /** CSI Z */ cursorBackwardTab(params?: number[]): void;
   /** CSI ` */ charPosAbsolute(params?: number[]): void;
-  /** CSI a */ HPositionRelative(params?: number[]): void;
+  /** CSI a */ hPositionRelative(params?: number[]): void;
   /** CSI b */ repeatPrecedingCharacter(params?: number[]): void;
-  /** CSI c */ sendDeviceAttributes(params?: number[]): void;
+  /** CSI c */ sendDeviceAttributes(params?: number[], collect?: string): void;
   /** CSI d */ linePosAbsolute(params?: number[]): void;
-  /** CSI e */ VPositionRelative(params?: number[]): void;
-  /** CSI f */ HVPosition(params?: number[]): void;
+  /** CSI e */ vPositionRelative(params?: number[]): void;
+  /** CSI f */ hVPosition(params?: number[]): void;
   /** CSI g */ tabClear(params?: number[]): void;
-  /** CSI h */ setMode(params?: number[]): void;
-  /** CSI l */ resetMode(params?: number[]): void;
+  /** CSI h */ setMode(params?: number[], collect?: string): void;
+  /** CSI l */ resetMode(params?: number[], collect?: string): void;
   /** CSI m */ charAttributes(params?: number[]): void;
-  /** CSI n */ deviceStatus(params?: number[]): void;
-  /** CSI p */ softReset(params?: number[]): void;
-  /** CSI q */ setCursorStyle(params?: number[]): void;
-  /** CSI r */ setScrollRegion(params?: number[]): void;
+  /** CSI n */ deviceStatus(params?: number[], collect?: string): void;
+  /** CSI p */ softReset(params?: number[], collect?: string): void;
+  /** CSI q */ setCursorStyle(params?: number[], collect?: string): void;
+  /** CSI r */ setScrollRegion(params?: number[], collect?: string): void;
   /** CSI s */ saveCursor(params?: number[]): void;
   /** CSI u */ restoreCursor(params?: number[]): void;
+  /** OSC 0
+      OSC 2 */ setTitle(data: string): void;
+  /** ESC E */ nextLine(): void;
+  /** ESC = */ keypadApplicationMode(): void;
+  /** ESC > */ keypadNumericMode(): void;
+  /** ESC % G
+      ESC % @ */ selectDefaultCharset(): void;
+  /** ESC ( C
+      ESC ) C
+      ESC * C
+      ESC + C
+      ESC - C
+      ESC . C
+      ESC / C */ selectCharset(collectAndFlag: string): void;
+  /** ESC D */ index(): void;
+  /** ESC H */ tabSet(): void;
+  /** ESC M */ reverseIndex(): void;
+  /** ESC c */ reset(): void;
+  /** ESC n
+      ESC o
+      ESC |
+      ESC }
+      ESC ~ */ setgLevel(level: number): void;
 }
 
 export interface ILinkMatcher {
@@ -169,10 +192,6 @@ export interface ILinkMatcher {
   willLinkActivate?: (event: MouseEvent, uri: string) => boolean;
 }
 
-export interface ICharset {
-  [key: string]: string;
-}
-
 export interface ILinkHoverEvent {
   x1: number;
   y1: number;
@@ -190,7 +209,6 @@ export interface ITerminal extends PublicTerminal, IElementAccessor, IBufferAcce
   writeBuffer: string[];
   cursorHidden: boolean;
   cursorState: number;
-  defAttr: number;
   options: ITerminalOptions;
   buffer: IBuffer;
   buffers: IBufferSet;
@@ -226,7 +244,7 @@ export interface ILinkifierAccessor {
 }
 
 export interface IMouseHelper {
-  getCoords(event: {pageX: number, pageY: number}, element: HTMLElement, charMeasure: ICharMeasure, lineHeight: number, colCount: number, rowCount: number, isSelection?: boolean): [number, number];
+  getCoords(event: { pageX: number, pageY: number }, element: HTMLElement, charMeasure: ICharMeasure, lineHeight: number, colCount: number, rowCount: number, isSelection?: boolean): [number, number];
   getRawByteCoords(event: MouseEvent, element: HTMLElement, charMeasure: ICharMeasure, lineHeight: number, colCount: number, rowCount: number): { x: number, y: number };
 }
 
@@ -238,6 +256,7 @@ export interface ICharMeasure {
 
 // TODO: The options that are not in the public API should be reviewed
 export interface ITerminalOptions extends IPublicTerminalOptions {
+  [key: string]: any;
   cancelEvents?: boolean;
   convertEol?: boolean;
   debug?: boolean;
@@ -261,6 +280,7 @@ export interface IBuffer {
   savedX: number;
   isCursorInViewport: boolean;
   translateBufferLineToString(lineIndex: number, trimRight: boolean, startCol?: number, endCol?: number): string;
+  getWrappedRangeForLine(y: number): { first: number, last: number };
   nextStop(x?: number): number;
   prevStop(x?: number): number;
 }
@@ -355,3 +375,134 @@ export interface IBrowser {
 export interface ISoundManager {
   playBellSound(): void;
 }
+
+/**
+ * Internal states of EscapeSequenceParser.
+ */
+export const enum ParserState {
+  GROUND = 0,
+  ESCAPE = 1,
+  ESCAPE_INTERMEDIATE = 2,
+  CSI_ENTRY = 3,
+  CSI_PARAM = 4,
+  CSI_INTERMEDIATE = 5,
+  CSI_IGNORE = 6,
+  SOS_PM_APC_STRING = 7,
+  OSC_STRING = 8,
+  DCS_ENTRY = 9,
+  DCS_PARAM = 10,
+  DCS_IGNORE = 11,
+  DCS_INTERMEDIATE = 12,
+  DCS_PASSTHROUGH = 13
+}
+
+/**
+* Internal actions of EscapeSequenceParser.
+*/
+export const enum ParserAction {
+  IGNORE = 0,
+  ERROR = 1,
+  PRINT = 2,
+  EXECUTE = 3,
+  OSC_START = 4,
+  OSC_PUT = 5,
+  OSC_END = 6,
+  CSI_DISPATCH = 7,
+  PARAM = 8,
+  COLLECT = 9,
+  ESC_DISPATCH = 10,
+  CLEAR = 11,
+  DCS_HOOK = 12,
+  DCS_PUT = 13,
+  DCS_UNHOOK = 14
+}
+
+/**
+ * Internal state of EscapeSequenceParser.
+ * Used as argument of the error handler to allow
+ * introspection at runtime on parse errors.
+ * Return it with altered values to recover from
+ * faulty states (not yet supported).
+ * Set `abort` to `true` to abort the current parsing.
+ */
+export interface IParsingState {
+  // position in parse string
+  position: number;
+  // actual character code
+  code: number;
+  // current parser state
+  currentState: ParserState;
+  // print buffer start index (-1 for not set)
+  print: number;
+  // dcs buffer start index (-1 for not set)
+  dcs: number;
+  // osc string buffer
+  osc: string;
+  // collect buffer with intermediate characters
+  collect: string;
+  // params buffer
+  params: number[];
+  // should abort (default: false)
+  abort: boolean;
+}
+
+/**
+* DCS handler signature for EscapeSequenceParser.
+* EscapeSequenceParser handles DCS commands via separate
+* subparsers that get hook/unhooked and can handle
+* arbitrary amount of print data.
+* On entering a DSC sequence `hook` is called by
+* `EscapeSequenceParser`. Use it to initialize or reset
+* states needed to handle the current DCS sequence.
+* EscapeSequenceParser will call `put` several times if the
+* parsed string got splitted, therefore you might have to collect
+* `data` until `unhook` is called. `unhook` marks the end
+* of the current DCS sequence.
+*/
+export interface IDcsHandler {
+  hook(collect: string, params: number[], flag: number): void;
+  put(data: string, start: number, end: number): void;
+  unhook(): void;
+}
+
+/**
+* EscapeSequenceParser interface.
+*/
+export interface IEscapeSequenceParser extends IDisposable {
+  /**
+   * Reset the parser to its initial state (handlers are kept).
+   */
+  reset(): void;
+
+  /**
+   * Parse string `data`.
+   * @param data The data to parse.
+   */
+  parse(data: string): void;
+
+  setPrintHandler(callback: (data: string, start: number, end: number) => void): void;
+  clearPrintHandler(): void;
+
+  setExecuteHandler(flag: string, callback: () => void): void;
+  clearExecuteHandler(flag: string): void;
+  setExecuteHandlerFallback(callback: (code: number) => void): void;
+
+  setCsiHandler(flag: string, callback: (params: number[], collect: string) => void): void;
+  clearCsiHandler(flag: string): void;
+  setCsiHandlerFallback(callback: (collect: string, params: number[], flag: number) => void): void;
+
+  setEscHandler(collectAndFlag: string, callback: () => void): void;
+  clearEscHandler(collectAndFlag: string): void;
+  setEscHandlerFallback(callback: (collect: string, flag: number) => void): void;
+
+  setOscHandler(ident: number, callback: (data: string) => void): void;
+  clearOscHandler(ident: number): void;
+  setOscHandlerFallback(callback: (identifier: number, data: string) => void): void;
+
+  setDcsHandler(collectAndFlag: string, handler: IDcsHandler): void;
+  clearDcsHandler(collectAndFlag: string): void;
+  setDcsHandlerFallback(handler: IDcsHandler): void;
+
+  setErrorHandler(callback: (state: IParsingState) => IParsingState): void;
+  clearErrorHandler(): void;
+}

src/Viewport.ts

@@ -5,7 +5,9 @@
 
 import { IColorSet } from './renderer/Types';
 import { ITerminal, IViewport } from './Types';
-import { CharMeasure } from './utils/CharMeasure';
+import { CharMeasure } from './ui/CharMeasure';
+import { Disposable } from './common/Lifecycle';
+import { addDisposableDomListener } from './ui/Lifecycle';
 
 const FALLBACK_SCROLL_BAR_WIDTH = 15;
 
@@ -13,7 +15,7 @@ const FALLBACK_SCROLL_BAR_WIDTH = 15;
  * Represents the viewport of a terminal, the visible area within the larger buffer of output.
  * Logic for the virtual scroll bar is included in this object.
  */
-export class Viewport implements IViewport {
+export class Viewport extends Disposable implements IViewport {
   public scrollBarWidth: number = 0;
   private _currentRowHeight: number = 0;
   private _lastRecordedBufferLength: number = 0;
@@ -39,11 +41,13 @@ export class Viewport implements IViewport {
     private _scrollArea: HTMLElement,
     private _charMeasure: CharMeasure
   ) {
+    super();
+
     // Measure the width of the scrollbar. If it is 0 we can assume it's an OSX overlay scrollbar.
     // Unfortunately the overlay scrollbar would be hidden underneath the screen element in that case,
     // therefore we account for a standard amount to make it visible
     this.scrollBarWidth = (this._viewportElement.offsetWidth - this._scrollArea.offsetWidth) || FALLBACK_SCROLL_BAR_WIDTH;
-    this._viewportElement.addEventListener('scroll', this._onScroll.bind(this));
+    this.register(addDisposableDomListener(this._viewportElement, 'scroll', this._onScroll.bind(this)));
 
     // Perform this async to ensure the CharMeasure is ready.
     setTimeout(() => this.syncScrollArea(), 0);
@@ -180,7 +184,7 @@ export class Viewport implements IViewport {
    * @param ev The touch event.
    */
   public onTouchMove(ev: TouchEvent): void {
-    let deltaY = this._lastTouchY - ev.touches[0].pageY;
+    const deltaY = this._lastTouchY - ev.touches[0].pageY;
     this._lastTouchY = ev.touches[0].pageY;
     if (deltaY === 0) {
       return;

src/addons/attach/Interfaces.ts

@@ -5,9 +5,13 @@
  * Implements the attach method, that attaches the terminal to a WebSocket stream.
  */
 
-import { Terminal } from 'xterm';
+import { Terminal, IDisposable } from 'xterm';
 
 export interface IAttachAddonTerminal extends Terminal {
+  _core: {
+    register<T extends IDisposable>(d: T): void;
+  };
+
   __socket?: WebSocket;
   __attachSocketBuffer?: string;
 

src/addons/attach/attach.ts

@@ -5,9 +5,7 @@
  * Implements the attach method, that attaches the terminal to a WebSocket stream.
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
-import { Terminal } from 'xterm';
+import { Terminal, IDisposable } from 'xterm';
 import { IAttachAddonTerminal } from './Interfaces';
 
 /**
@@ -38,10 +36,11 @@ export function attach(term: Terminal, socket: WebSocket, bidirectional: boolean
     }
   };
 
-  let myTextDecoder;
+  // TODO: This should be typed but there seem to be issues importing the type
+  let myTextDecoder: any;
 
   addonTerminal.__getMessage = function(ev: MessageEvent): void {
-    let str;
+    let str: string;
 
     if (typeof ev.data === 'object') {
       if (!myTextDecoder) {
@@ -51,7 +50,7 @@ export function attach(term: Terminal, socket: WebSocket, bidirectional: boolean
         str = myTextDecoder.decode(ev.data);
         displayData(str);
       } else {
-        let fileReader = new FileReader();
+        const fileReader = new FileReader();
 
         fileReader.addEventListener('load', () => {
           str = myTextDecoder.decode(this.result);
@@ -88,14 +87,28 @@ export function attach(term: Terminal, socket: WebSocket, bidirectional: boolean
     socket.send(data);
   };
 
-  socket.addEventListener('message', addonTerminal.__getMessage);
+  addonTerminal._core.register(addSocketListener(socket, 'message', addonTerminal.__getMessage));
 
   if (bidirectional) {
-    addonTerminal.on('data', addonTerminal.__sendData);
+    addonTerminal._core.register(addonTerminal.addDisposableListener('data', addonTerminal.__sendData));
   }
 
-  socket.addEventListener('close', () => detach(addonTerminal, socket));
-  socket.addEventListener('error', () => detach(addonTerminal, socket));
+  addonTerminal._core.register(addSocketListener(socket, 'close', () => detach(addonTerminal, socket)));
+  addonTerminal._core.register(addSocketListener(socket, 'error', () => detach(addonTerminal, socket)));
+}
+
+function addSocketListener(socket: WebSocket, type: string, handler: (this: WebSocket, ev: Event) => any): IDisposable {
+  socket.addEventListener(type, handler);
+  return {
+    dispose: () => {
+      if (!handler) {
+        // Already disposed
+        return;
+      }
+      socket.removeEventListener(type, handler);
+      handler = null;
+    }
+  };
 }
 
 /**

src/addons/attach/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/attach/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/fit/README.md

@@ -0,0 +1,3 @@
+## fit addon
+
+The fit addon adjusts the dimensions of the terminal to match best fit its parent element container. `fit` will only work when the element is visible.

src/addons/fit/fit.ts

@@ -13,8 +13,6 @@
  *          row and truncate its width with the current number of columns).
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { Terminal } from 'xterm';
 
 export interface IGeometry {
@@ -39,10 +37,10 @@ export function proposeGeometry(term: Terminal): IGeometry {
   const elementPaddingVer = elementPadding.top + elementPadding.bottom;
   const elementPaddingHor = elementPadding.right + elementPadding.left;
   const availableHeight = parentElementHeight - elementPaddingVer;
-  const availableWidth = parentElementWidth - elementPaddingHor - (<any>term).viewport.scrollBarWidth;
+  const availableWidth = parentElementWidth - elementPaddingHor - (<any>term)._core.viewport.scrollBarWidth;
   const geometry = {
-    cols: Math.floor(availableWidth / (<any>term).renderer.dimensions.actualCellWidth),
-    rows: Math.floor(availableHeight / (<any>term).renderer.dimensions.actualCellHeight)
+    cols: Math.floor(availableWidth / (<any>term)._core.renderer.dimensions.actualCellWidth),
+    rows: Math.floor(availableHeight / (<any>term)._core.renderer.dimensions.actualCellHeight)
   };
   return geometry;
 }
@@ -52,7 +50,7 @@ export function fit(term: Terminal): void {
   if (geometry) {
     // Force a full render
     if (term.rows !== geometry.rows || term.cols !== geometry.cols) {
-      (<any>term).renderer.clear();
+      (<any>term)._core.renderer.clear();
       term.resize(geometry.cols, geometry.rows);
     }
   }

src/addons/fit/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/fit/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/fullscreen/fullscreen.ts

@@ -3,8 +3,6 @@
  * @license MIT
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { Terminal } from 'xterm';
 
 /**

src/addons/fullscreen/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/fullscreen/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/search/Interfaces.ts

@@ -5,14 +5,17 @@
 
 import { Terminal } from 'xterm';
 
-export interface ISearchAddonTerminal extends Terminal {
-  __searchHelper?: ISearchHelper;
-
-  // TODO: Reuse ITerminal from core
+// TODO: Don't rely on this private API
+export interface ITerminalCore {
   buffer: any;
   selectionManager: any;
 }
 
+export interface ISearchAddonTerminal extends Terminal {
+  __searchHelper?: ISearchHelper;
+  _core: ITerminalCore;
+}
+
 export interface ISearchHelper {
   findNext(term: string): boolean;
   findPrevious(term: string): boolean;

src/addons/search/SearchHelper.ts

@@ -35,14 +35,14 @@ export class SearchHelper implements ISearchHelper {
 
     let result: ISearchResult;
 
-    let startRow = this._terminal.buffer.ydisp;
-    if (this._terminal.selectionManager.selectionEnd) {
+    let startRow = this._terminal._core.buffer.ydisp;
+    if (this._terminal._core.selectionManager.selectionEnd) {
       // Start from the selection end if there is a selection
-      startRow = this._terminal.selectionManager.selectionEnd[1];
+      startRow = this._terminal._core.selectionManager.selectionEnd[1];
     }
 
     // Search from ydisp + 1 to end
-    for (let y = startRow + 1; y < this._terminal.buffer.ybase + this._terminal.rows; y++) {
+    for (let y = startRow + 1; y < this._terminal._core.buffer.ybase + this._terminal.rows; y++) {
       result = this._findInLine(term, y);
       if (result) {
         break;
@@ -76,10 +76,10 @@ export class SearchHelper implements ISearchHelper {
 
     let result: ISearchResult;
 
-    let startRow = this._terminal.buffer.ydisp;
-    if (this._terminal.selectionManager.selectionStart) {
+    let startRow = this._terminal._core.buffer.ydisp;
+    if (this._terminal._core.selectionManager.selectionStart) {
       // Start from the selection end if there is a selection
-      startRow = this._terminal.selectionManager.selectionStart[1];
+      startRow = this._terminal._core.selectionManager.selectionStart[1];
     }
 
     // Search from ydisp + 1 to end
@@ -92,7 +92,7 @@ export class SearchHelper implements ISearchHelper {
 
     // Search from the top to the current ydisp
     if (!result) {
-      for (let y = this._terminal.buffer.ybase + this._terminal.rows - 1; y > startRow; y--) {
+      for (let y = this._terminal._core.buffer.ybase + this._terminal.rows - 1; y > startRow; y--) {
         result = this._findInLine(term, y);
         if (result) {
           break;
@@ -111,11 +111,11 @@ export class SearchHelper implements ISearchHelper {
    * @return The search result if it was found.
    */
   private _findInLine(term: string, y: number): ISearchResult {
-    const lowerStringLine = this._terminal.buffer.translateBufferLineToString(y, true).toLowerCase();
+    const lowerStringLine = this._terminal._core.buffer.translateBufferLineToString(y, true).toLowerCase();
     const lowerTerm = term.toLowerCase();
     let searchIndex = lowerStringLine.indexOf(lowerTerm);
     if (searchIndex >= 0) {
-      const line = this._terminal.buffer.lines.get(y);
+      const line = this._terminal._core.buffer.lines.get(y);
       for (let i = 0; i < searchIndex; i++) {
         const charData = line[i];
         // Adjust the searchIndex to normalize emoji into single chars
@@ -147,8 +147,8 @@ export class SearchHelper implements ISearchHelper {
     if (!result) {
       return false;
     }
-    this._terminal.selectionManager.setSelection(result.col, result.row, result.term.length);
-    this._terminal.scrollLines(result.row - this._terminal.buffer.ydisp);
+    this._terminal._core.selectionManager.setSelection(result.col, result.row, result.term.length);
+    this._terminal.scrollLines(result.row - this._terminal._core.buffer.ydisp);
     return true;
   }
 }

src/addons/search/search.ts

@@ -3,8 +3,6 @@
  * @license MIT
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { SearchHelper } from './SearchHelper';
 import { Terminal } from 'xterm';
 import { ISearchAddonTerminal } from './Interfaces';

src/addons/search/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/search/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/terminado/terminado.ts

@@ -6,8 +6,6 @@
  * WebSocket stream.
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { Terminal } from 'xterm';
 import { ITerminadoAddonTerminal } from './Interfaces';
 

src/addons/terminado/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/terminado/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/webLinks/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/webLinks/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/webLinks/webLinks.test.ts

@@ -34,8 +34,8 @@ describe('webLinks addon', () => {
 
     const row = '  http://foo.com/a~b#c~d?e~f  ';
 
-    let match = row.match(term.regex);
-    let uri = match[term.options.matchIndex];
+    const match = row.match(term.regex);
+    const uri = match[term.options.matchIndex];
 
     assert.equal(uri, 'http://foo.com/a~b#c~d?e~f');
   });

src/addons/webLinks/webLinks.ts

@@ -3,8 +3,6 @@
  * @license MIT
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { Terminal, ILinkMatcherOptions } from 'xterm';
 
 const protocolClause = '(https?:\\/\\/)';

src/addons/winptyCompat/Interfaces.ts

@@ -5,6 +5,10 @@
 
 import { Terminal } from 'xterm';
 
-export interface IWinptyCompatAddonTerminal extends Terminal {
+export interface ITerminalCore {
   buffer: any;
 }
+
+export interface IWinptyCompatAddonTerminal extends Terminal {
+  _core: ITerminalCore;
+}

src/addons/winptyCompat/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/winptyCompat/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/winptyCompat/winptyCompat.ts

@@ -3,8 +3,6 @@
  * @license MIT
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { Terminal } from 'xterm';
 import { IWinptyCompatAddonTerminal } from './Interfaces';
 
@@ -28,11 +26,11 @@ export function winptyCompatInit(terminal: Terminal): void {
   // Windows when text reaches the end of the terminal it's likely going to be
   // wrapped.
   addonTerminal.on('linefeed', () => {
-    const line = addonTerminal.buffer.lines.get(addonTerminal.buffer.ybase + addonTerminal.buffer.y - 1);
+    const line = addonTerminal._core.buffer.lines.get(addonTerminal._core.buffer.ybase + addonTerminal._core.buffer.y - 1);
     const lastChar = line[addonTerminal.cols - 1];
 
     if (lastChar[3] !== 32 /* ' ' */) {
-      const nextLine = addonTerminal.buffer.lines.get(addonTerminal.buffer.ybase + addonTerminal.buffer.y);
+      const nextLine = addonTerminal._core.buffer.lines.get(addonTerminal._core.buffer.ybase + addonTerminal._core.buffer.y);
       (<any>nextLine).isWrapped = true;
     }
   });

src/addons/zmodem/tsconfig.json

@@ -6,6 +6,11 @@
     "outDir": "../../../lib/addons/zmodem/",
     "sourceMap": true,
     "removeComments": true,
-    "declaration": true
-  }
+    "declaration": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "**/*.ts",
+    "../../../typings/xterm.d.ts"
+  ]
 }

src/addons/zmodem/zmodem.ts

@@ -3,8 +3,6 @@
  * @license MIT
  */
 
-/// <reference path="../../../typings/xterm.d.ts"/>
-
 import { Terminal } from 'xterm';
 
 /**
@@ -48,13 +46,13 @@ function zmodemAttach(ws: WebSocket, opts: IZmodemOptions = {}): void {
 
   let zsentry;
 
-  function _shouldWrite(): boolean {
+  function shouldWrite(): boolean {
     return !!zsentry.get_confirmed_session() || !opts.noTerminalWriteOutsideSession;
   }
 
   zsentry = new zmodem.Sentry({
     to_terminal: (octets: ArrayLike<number>) => {
-      if (_shouldWrite()) {
+      if (shouldWrite()) {
         term.write(
           String.fromCharCode.apply(String, octets)
         );
@@ -72,7 +70,7 @@ function zmodemAttach(ws: WebSocket, opts: IZmodemOptions = {}): void {
     // may be specific to xterm.js’s demo, ultimately we
     // should reject anything that isn’t binary.
     if (typeof evt.data === 'string') {
-      if (_shouldWrite()) {
+      if (shouldWrite()) {
         term.write(evt.data);
       }
     }

src/common/CircularList.ts

@@ -36,7 +36,7 @@ export class CircularList<T> extends EventEmitter implements ICircularList<T> {
 
     // Reconstruct array, starting at index 0. Only transfer values from the
     // indexes 0 to length.
-    let newArray = new Array<T>(newMaxLength);
+    const newArray = new Array<T>(newMaxLength);
     for (let i = 0; i < Math.min(newMaxLength, this.length); i++) {
       newArray[i] = this._array[this._getCyclicIndex(i)];
     }

src/common/Lifecycle.ts

@@ -0,0 +1,33 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { IDisposable } from 'xterm';
+
+/**
+ * A base class that can be extended to provide convenience methods for managing the lifecycle of an
+ * object and its components.
+ */
+export abstract class Disposable implements IDisposable {
+  protected _disposables: IDisposable[] = [];
+
+  constructor() {
+  }
+
+  /**
+   * Disposes the object, triggering the `dispose` method on all registered IDisposables.
+   */
+  public dispose(): void {
+    this._disposables.forEach(d => d.dispose());
+    this._disposables.length = 0;
+  }
+
+  /**
+   * Registers a disposable object.
+   * @param d The disposable to register.
+   */
+  public register<T extends IDisposable>(d: T): void {
+    this._disposables.push(d);
+  }
+}

src/common/Types.ts

@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+/**
+ * A keyboard event interface which does not depend on the DOM, KeyboardEvent implicitly extends
+ * this event.
+ */
+export interface IKeyboardEvent {
+  altKey: boolean;
+  ctrlKey: boolean;
+  shiftKey: boolean;
+  metaKey: boolean;
+  keyCode: number;
+  key: string;
+  type: string;
+}

src/common/data/EscapeSequences.ts

@@ -77,3 +77,74 @@ export namespace C0 {
   /** Delete (Caret = ^?) */
   export const DEL = '\x7f';
 }
+
+/**
+ * C1 control codes
+ * See = https://en.wikipedia.org/wiki/C0_and_C1_control_codes
+ */
+export namespace C1 {
+  /** padding character */
+  export const PAD = '\x80';
+  /** High Octet Preset */
+  export const HOP = '\x81';
+  /** Break Permitted Here */
+  export const BPH = '\x82';
+  /** No Break Here */
+  export const NBH = '\x83';
+  /** Index */
+  export const IND = '\x84';
+  /** Next Line */
+  export const NEL = '\x85';
+  /** Start of Selected Area */
+  export const SSA = '\x86';
+  /** End of Selected Area */
+  export const ESA = '\x87';
+  /** Horizontal Tabulation Set */
+  export const HTS = '\x88';
+  /** Horizontal Tabulation With Justification */
+  export const HTJ = '\x89';
+  /** Vertical Tabulation Set */
+  export const VTS = '\x8a';
+  /** Partial Line Down */
+  export const PLD = '\x8b';
+  /** Partial Line Up */
+  export const PLU = '\x8c';
+  /** Reverse Index */
+  export const RI = '\x8d';
+  /** Single-Shift 2 */
+  export const SS2 = '\x8e';
+  /** Single-Shift 3 */
+  export const SS3 = '\x8f';
+  /** Device Control String */
+  export const DCS = '\x90';
+  /** Private Use 1 */
+  export const PU1 = '\x91';
+  /** Private Use 2 */
+  export const PU2 = '\x92';
+  /** Set Transmit State */
+  export const STS = '\x93';
+  /** Destructive backspace, intended to eliminate ambiguity about meaning of BS. */
+  export const CCH = '\x94';
+  /** Message Waiting */
+  export const MW = '\x95';
+  /** Start of Protected Area */
+  export const SPA = '\x96';
+  /** End of Protected Area */
+  export const EPA = '\x97';
+  /** Start of String */
+  export const SOS = '\x98';
+  /** Single Graphic Character Introducer */
+  export const SGCI = '\x99';
+  /** Single Character Introducer */
+  export const SCI = '\x9a';
+  /** Control Sequence Introducer */
+  export const CSI = '\x9b';
+  /** String Terminator */
+  export const ST = '\x9c';
+  /** Operating System Command */
+  export const OSC = '\x9d';
+  /** Privacy Message */
+  export const PM = '\x9e';
+  /** Application Program Command */
+  export const APC = '\x9f';
+}

src/core/Types.ts

@@ -0,0 +1,21 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+export const enum KeyboardResultType {
+  SEND_KEY,
+  SELECT_ALL,
+  PAGE_UP,
+  PAGE_DOWN
+}
+
+export interface IKeyboardResult {
+  type: KeyboardResultType;
+  cancel: boolean;
+  key: string | undefined;
+}
+
+export interface ICharset {
+  [key: string]: string;
+}

src/core/data/Charsets.ts

@@ -3,7 +3,7 @@
  * @license MIT
  */
 
-import { ICharset } from './Types';
+import { ICharset } from '../Types';
 
 /**
  * The character sets supported by the terminal. These enable several languages

src/core/input/Keyboard.test.ts

@@ -0,0 +1,284 @@
+
+import { assert } from 'chai';
+import { evaluateKeyboardEvent } from './Keyboard';
+import { IKeyboardResult } from '../Types';
+
+/**
+ * A helper function for testing which allows passing in a partial event and defaults will be filled
+ * in on it.
+ */
+function testEvaluateKeyboardEvent(partialEvent: {
+  altKey?: boolean;
+  ctrlKey?: boolean;
+  shiftKey?: boolean;
+  metaKey?: boolean;
+  keyCode?: number;
+  key?: string;
+  type?: string;
+}, partialOptions: {
+  applicationCursorMode?: boolean;
+  isMac?: boolean;
+  macOptionIsMeta?: boolean;
+} = {}): IKeyboardResult {
+  const event = {
+    altKey: partialEvent.altKey || false,
+    ctrlKey: partialEvent.ctrlKey || false,
+    shiftKey: partialEvent.shiftKey || false,
+    metaKey: partialEvent.metaKey || false,
+    keyCode: partialEvent.keyCode !== undefined ? partialEvent.keyCode : undefined,
+    key: partialEvent.key || '',
+    type: partialEvent.type || ''
+  };
+  const options = {
+    applicationCursorMode: partialOptions.applicationCursorMode || false,
+    isMac: partialOptions.isMac || false,
+    macOptionIsMeta: partialOptions.macOptionIsMeta || false
+  };
+  return evaluateKeyboardEvent(event, options.applicationCursorMode, options.isMac, options.macOptionIsMeta);
+}
+
+describe('Keyboard', () => {
+  describe('evaluateKeyEscapeSequence', () => {
+    it('should return the correct escape sequence for unmodified keys', () => {
+      // Backspace
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 8 }).key, '\x7f'); // ^?
+      // Tab
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 9 }).key, '\t');
+      // Return/enter
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 13 }).key, '\r'); // CR
+      // Escape
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 27 }).key, '\x1b');
+      // Page up, page down
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 33 }).key, '\x1b[5~'); // CSI 5 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 34 }).key, '\x1b[6~'); // CSI 6 ~
+      // End, Home
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 35 }).key, '\x1b[F'); // SS3 F
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 36 }).key, '\x1b[H'); // SS3 H
+      // Left, up, right, down arrows
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 37 }).key, '\x1b[D'); // CSI D
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 38 }).key, '\x1b[A'); // CSI A
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 39 }).key, '\x1b[C'); // CSI C
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 40 }).key, '\x1b[B'); // CSI B
+      // Insert
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 45 }).key, '\x1b[2~'); // CSI 2 ~
+      // Delete
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 46 }).key, '\x1b[3~'); // CSI 3 ~
+      // F1-F12
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 112 }).key, '\x1bOP'); // SS3 P
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 113 }).key, '\x1bOQ'); // SS3 Q
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 114 }).key, '\x1bOR'); // SS3 R
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 115 }).key, '\x1bOS'); // SS3 S
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 116 }).key, '\x1b[15~'); // CSI 1 5 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 117 }).key, '\x1b[17~'); // CSI 1 7 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 118 }).key, '\x1b[18~'); // CSI 1 8 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 119 }).key, '\x1b[19~'); // CSI 1 9 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 120 }).key, '\x1b[20~'); // CSI 2 0 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 121 }).key, '\x1b[21~'); // CSI 2 1 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 122 }).key, '\x1b[23~'); // CSI 2 3 ~
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 123 }).key, '\x1b[24~'); // CSI 2 4 ~
+    });
+    it('should return \\x1b[3;5~ for ctrl+delete', () => {
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 46 }).key, '\x1b[3;5~');
+    });
+    it('should return \\x1b[3;2~ for shift+delete', () => {
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 46 }).key, '\x1b[3;2~');
+    });
+    it('should return \\x1b[3;3~ for alt+delete', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 46 }).key, '\x1b[3;3~');
+    });
+    it('should return \\x1b[5D for ctrl+left', () => {
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 37 }).key, '\x1b[1;5D'); // CSI 5 D
+    });
+    it('should return \\x1b[5C for ctrl+right', () => {
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 39 }).key, '\x1b[1;5C'); // CSI 5 C
+    });
+    it('should return \\x1b[5A for ctrl+up', () => {
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 38 }).key, '\x1b[1;5A'); // CSI 5 A
+    });
+    it('should return \\x1b[5B for ctrl+down', () => {
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 40 }).key, '\x1b[1;5B'); // CSI 5 B
+    });
+
+    describe('On non-macOS platforms', () => {
+      // Evalueate alt + arrow key movement, which is a feature of terminal emulators but not VT100
+      // http://unix.stackexchange.com/a/108106
+      it('should return \\x1b[5D for alt+left', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 37 }, { isMac: false }).key, '\x1b[1;5D'); // CSI 5 D
+      });
+      it('should return \\x1b[5C for alt+right', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 39 }, { isMac: false }).key, '\x1b[1;5C'); // CSI 5 C
+      });
+      it('should return \\x1ba for alt+a', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 65 }, { isMac: false }).key, '\x1ba');
+      });
+    });
+
+    describe('On macOS platforms', () => {
+      it('should return \\x1bb for alt+left', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 37 }, { isMac: true }).key, '\x1bb'); // CSI 5 D
+      });
+      it('should return \\x1bf for alt+right', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 39 }, { isMac: true }).key, '\x1bf'); // CSI 5 C
+      });
+      it('should return undefined for alt+a', () => {
+        assert.strictEqual(testEvaluateKeyboardEvent({ altKey: true, keyCode: 65 }, { isMac: true }).key, undefined), { isMac: true };
+      });
+    });
+
+    describe('with macOptionIsMeta', () => {
+      it('should return \\x1ba for alt+a', () => {
+        assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 65 }, { isMac: true, macOptionIsMeta: true }).key, '\x1ba');
+      });
+    });
+
+    it('should return \\x1b[5A for alt+up', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 38 }).key, '\x1b[1;5A'); // CSI 5 A
+    });
+    it('should return \\x1b[5B for alt+down', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 40 }).key, '\x1b[1;5B'); // CSI 5 B
+    });
+    it('should return the correct escape sequence for modified F1-F12 keys', () => {
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 112 }).key, '\x1b[1;2P');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 113 }).key, '\x1b[1;2Q');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 114 }).key, '\x1b[1;2R');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 115 }).key, '\x1b[1;2S');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 116 }).key, '\x1b[15;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 117 }).key, '\x1b[17;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 118 }).key, '\x1b[18;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 119 }).key, '\x1b[19;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 120 }).key, '\x1b[20;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 121 }).key, '\x1b[21;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 122 }).key, '\x1b[23;2~');
+      assert.equal(testEvaluateKeyboardEvent({ shiftKey: true, keyCode: 123 }).key, '\x1b[24;2~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 112 }).key, '\x1b[1;3P');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 113 }).key, '\x1b[1;3Q');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 114 }).key, '\x1b[1;3R');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 115 }).key, '\x1b[1;3S');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 116 }).key, '\x1b[15;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 117 }).key, '\x1b[17;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 118 }).key, '\x1b[18;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 119 }).key, '\x1b[19;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 120 }).key, '\x1b[20;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 121 }).key, '\x1b[21;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 122 }).key, '\x1b[23;3~');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, keyCode: 123 }).key, '\x1b[24;3~');
+
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 112 }).key, '\x1b[1;5P');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 113 }).key, '\x1b[1;5Q');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 114 }).key, '\x1b[1;5R');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 115 }).key, '\x1b[1;5S');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 116 }).key, '\x1b[15;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 117 }).key, '\x1b[17;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 118 }).key, '\x1b[18;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 119 }).key, '\x1b[19;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 120 }).key, '\x1b[20;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 121 }).key, '\x1b[21;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 122 }).key, '\x1b[23;5~');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, keyCode: 123 }).key, '\x1b[24;5~');
+    });
+
+    // Characters using ctrl+alt sequences
+    it('should return proper sequence for ctrl+alt+a', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, ctrlKey: true, keyCode: 65 }).key, '\x1b\x01');
+    });
+
+    // Characters using alt sequences (numbers)
+    it('should return proper sequences for alt+0', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 48 }).key, '\x1b0');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 48 }).key, '\x1b)');
+    });
+    it('should return proper sequences for alt+1', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 49 }).key, '\x1b1');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 49 }).key, '\x1b!');
+    });
+    it('should return proper sequences for alt+2', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 50 }).key, '\x1b2');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 50 }).key, '\x1b@');
+    });
+    it('should return proper sequences for alt+3', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 51 }).key, '\x1b3');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 51 }).key, '\x1b#');
+    });
+    it('should return proper sequences for alt+4', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 52 }).key, '\x1b4');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 52 }).key, '\x1b$');
+    });
+    it('should return proper sequences for alt+5', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 53 }).key, '\x1b5');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 53 }).key, '\x1b%');
+    });
+    it('should return proper sequences for alt+6', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 54 }).key, '\x1b6');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 54 }).key, '\x1b^');
+    });
+    it('should return proper sequences for alt+7', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 55 }).key, '\x1b7');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 55 }).key, '\x1b&');
+    });
+    it('should return proper sequences for alt+8', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 56 }).key, '\x1b8');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 56 }).key, '\x1b*');
+    });
+    it('should return proper sequences for alt+9', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 57 }).key, '\x1b9');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 57 }).key, '\x1b(');
+    });
+
+    // Characters using alt sequences (special chars)
+    it('should return proper sequences for alt+;', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 186 }).key, '\x1b;');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 186 }).key, '\x1b:');
+    });
+    it('should return proper sequences for alt+=', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 187 }).key, '\x1b=');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 187 }).key, '\x1b+');
+    });
+    it('should return proper sequences for alt+,', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 188 }).key, '\x1b,');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 188 }).key, '\x1b<');
+    });
+    it('should return proper sequences for alt+-', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 189 }).key, '\x1b-');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 189 }).key, '\x1b_');
+    });
+    it('should return proper sequences for alt+.', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 190 }).key, '\x1b.');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 190 }).key, '\x1b>');
+    });
+    it('should return proper sequences for alt+/', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 191 }).key, '\x1b/');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true, keyCode: 191 }).key, '\x1b?');
+    });
+    it('should return proper sequences for alt+~', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 192 }).key, '\x1b`');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true, keyCode: 192 }).key, '\x1b~');
+    });
+    it('should return proper sequences for alt+[', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 219 }).key, '\x1b[');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 219 }).key, '\x1b{');
+    });
+    it('should return proper sequences for alt+\\', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 220 }).key, '\x1b\\');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 220 }).key, '\x1b|');
+    });
+    it('should return proper sequences for alt+]', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 221 }).key, '\x1b]');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 221 }).key, '\x1b}');
+    });
+    it('should return proper sequences for alt+\'', () => {
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: false, keyCode: 222 }).key, '\x1b\'');
+      assert.equal(testEvaluateKeyboardEvent({ altKey: true, shiftKey: true,  keyCode: 222 }).key, '\x1b"');
+    });
+
+    it('should handle mobile arrow events', () => {
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputUpArrow' }).key, '\x1b[A');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputUpArrow' }, { applicationCursorMode: true }).key, '\x1bOA');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputLeftArrow' }).key, '\x1b[D');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputLeftArrow' }, { applicationCursorMode: true }).key, '\x1bOD');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputRightArrow' }).key, '\x1b[C');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputRightArrow' }, { applicationCursorMode: true }).key, '\x1bOC');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputDownArrow' }).key, '\x1b[B');
+      assert.equal(testEvaluateKeyboardEvent({ keyCode: 0, key: 'UIKeyInputDownArrow' }, { applicationCursorMode: true }).key, '\x1bOB');
+    });
+  });
+});

src/core/input/Keyboard.ts

@@ -0,0 +1,357 @@
+/**
+ * Copyright (c) 2014 The xterm.js authors. All rights reserved.
+ * Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
+ * @license MIT
+ */
+
+import { IKeyboardEvent } from '../../common/Types';
+import { IKeyboardResult, KeyboardResultType } from '../Types';
+import { C0 } from '../../common/data/EscapeSequences';
+
+// reg + shift key mappings for digits and special chars
+const KEYCODE_KEY_MAPPINGS: { [key: number]: [string, string]} = {
+  // digits 0-9
+  48: ['0', ')'],
+  49: ['1', '!'],
+  50: ['2', '@'],
+  51: ['3', '#'],
+  52: ['4', '$'],
+  53: ['5', '%'],
+  54: ['6', '^'],
+  55: ['7', '&'],
+  56: ['8', '*'],
+  57: ['9', '('],
+
+  // special chars
+  186: [';', ':'],
+  187: ['=', '+'],
+  188: [',', '<'],
+  189: ['-', '_'],
+  190: ['.', '>'],
+  191: ['/', '?'],
+  192: ['`', '~'],
+  219: ['[', '{'],
+  220: ['\\', '|'],
+  221: [']', '}'],
+  222: ['\'', '"']
+};
+
+export function evaluateKeyboardEvent(
+  ev: IKeyboardEvent,
+  applicationCursorMode: boolean,
+  isMac: boolean,
+  macOptionIsMeta: boolean
+): IKeyboardResult {
+  const result: IKeyboardResult = {
+    type: KeyboardResultType.SEND_KEY,
+    // Whether to cancel event propogation (NOTE: this may not be needed since the event is
+    // canceled at the end of keyDown
+    cancel: false,
+    // The new key even to emit
+    key: undefined
+  };
+  const modifiers = (ev.shiftKey ? 1 : 0) | (ev.altKey ? 2 : 0) | (ev.ctrlKey ? 4 : 0) | (ev.metaKey ? 8 : 0);
+  switch (ev.keyCode) {
+    case 0:
+      if (ev.key === 'UIKeyInputUpArrow') {
+        if (applicationCursorMode) {
+          result.key = C0.ESC + 'OA';
+        } else {
+          result.key = C0.ESC + '[A';
+        }
+      }
+      else if (ev.key === 'UIKeyInputLeftArrow') {
+        if (applicationCursorMode) {
+          result.key = C0.ESC + 'OD';
+        } else {
+          result.key = C0.ESC + '[D';
+        }
+      }
+      else if (ev.key === 'UIKeyInputRightArrow') {
+        if (applicationCursorMode) {
+          result.key = C0.ESC + 'OC';
+        } else {
+          result.key = C0.ESC + '[C';
+        }
+      }
+      else if (ev.key === 'UIKeyInputDownArrow') {
+        if (applicationCursorMode) {
+          result.key = C0.ESC + 'OB';
+        } else {
+          result.key = C0.ESC + '[B';
+        }
+      }
+      break;
+    case 8:
+      // backspace
+      if (ev.shiftKey) {
+        result.key = C0.BS; // ^H
+        break;
+      } else if (ev.altKey) {
+        result.key = C0.ESC + C0.DEL; // \e ^?
+        break;
+      }
+      result.key = C0.DEL; // ^?
+      break;
+    case 9:
+      // tab
+      if (ev.shiftKey) {
+        result.key = C0.ESC + '[Z';
+        break;
+      }
+      result.key = C0.HT;
+      result.cancel = true;
+      break;
+    case 13:
+      // return/enter
+      result.key = C0.CR;
+      result.cancel = true;
+      break;
+    case 27:
+      // escape
+      result.key = C0.ESC;
+      result.cancel = true;
+      break;
+    case 37:
+      // left-arrow
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'D';
+        // HACK: Make Alt + left-arrow behave like Ctrl + left-arrow: move one word backwards
+        // http://unix.stackexchange.com/a/108106
+        // macOS uses different escape sequences than linux
+        if (result.key === C0.ESC + '[1;3D') {
+          result.key = isMac ? C0.ESC + 'b' : C0.ESC + '[1;5D';
+        }
+      } else if (applicationCursorMode) {
+        result.key = C0.ESC + 'OD';
+      } else {
+        result.key = C0.ESC + '[D';
+      }
+      break;
+    case 39:
+      // right-arrow
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'C';
+        // HACK: Make Alt + right-arrow behave like Ctrl + right-arrow: move one word forward
+        // http://unix.stackexchange.com/a/108106
+        // macOS uses different escape sequences than linux
+        if (result.key === C0.ESC + '[1;3C') {
+          result.key = isMac ? C0.ESC + 'f' : C0.ESC + '[1;5C';
+        }
+      } else if (applicationCursorMode) {
+        result.key = C0.ESC + 'OC';
+      } else {
+        result.key = C0.ESC + '[C';
+      }
+      break;
+    case 38:
+      // up-arrow
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'A';
+        // HACK: Make Alt + up-arrow behave like Ctrl + up-arrow
+        // http://unix.stackexchange.com/a/108106
+        if (result.key === C0.ESC + '[1;3A') {
+          result.key = C0.ESC + '[1;5A';
+        }
+      } else if (applicationCursorMode) {
+        result.key = C0.ESC + 'OA';
+      } else {
+        result.key = C0.ESC + '[A';
+      }
+      break;
+    case 40:
+      // down-arrow
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'B';
+        // HACK: Make Alt + down-arrow behave like Ctrl + down-arrow
+        // http://unix.stackexchange.com/a/108106
+        if (result.key === C0.ESC + '[1;3B') {
+          result.key = C0.ESC + '[1;5B';
+        }
+      } else if (applicationCursorMode) {
+        result.key = C0.ESC + 'OB';
+      } else {
+        result.key = C0.ESC + '[B';
+      }
+      break;
+    case 45:
+      // insert
+      if (!ev.shiftKey && !ev.ctrlKey) {
+        // <Ctrl> or <Shift> + <Insert> are used to
+        // copy-paste on some systems.
+        result.key = C0.ESC + '[2~';
+      }
+      break;
+    case 46:
+      // delete
+      if (modifiers) {
+        result.key = C0.ESC + '[3;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[3~';
+      }
+      break;
+    case 36:
+      // home
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'H';
+      } else if (applicationCursorMode) {
+        result.key = C0.ESC + 'OH';
+      } else {
+        result.key = C0.ESC + '[H';
+      }
+      break;
+    case 35:
+      // end
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'F';
+      } else if (applicationCursorMode) {
+        result.key = C0.ESC + 'OF';
+      } else {
+        result.key = C0.ESC + '[F';
+      }
+      break;
+    case 33:
+      // page up
+      if (ev.shiftKey) {
+        result.type = KeyboardResultType.PAGE_UP;
+      } else {
+        result.key = C0.ESC + '[5~';
+      }
+      break;
+    case 34:
+      // page down
+      if (ev.shiftKey) {
+        result.type = KeyboardResultType.PAGE_DOWN;
+      } else {
+        result.key = C0.ESC + '[6~';
+      }
+      break;
+    case 112:
+      // F1-F12
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'P';
+      } else {
+        result.key = C0.ESC + 'OP';
+      }
+      break;
+    case 113:
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'Q';
+      } else {
+        result.key = C0.ESC + 'OQ';
+      }
+      break;
+    case 114:
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'R';
+      } else {
+        result.key = C0.ESC + 'OR';
+      }
+      break;
+    case 115:
+      if (modifiers) {
+        result.key = C0.ESC + '[1;' + (modifiers + 1) + 'S';
+      } else {
+        result.key = C0.ESC + 'OS';
+      }
+      break;
+    case 116:
+      if (modifiers) {
+        result.key = C0.ESC + '[15;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[15~';
+      }
+      break;
+    case 117:
+      if (modifiers) {
+        result.key = C0.ESC + '[17;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[17~';
+      }
+      break;
+    case 118:
+      if (modifiers) {
+        result.key = C0.ESC + '[18;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[18~';
+      }
+      break;
+    case 119:
+      if (modifiers) {
+        result.key = C0.ESC + '[19;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[19~';
+      }
+      break;
+    case 120:
+      if (modifiers) {
+        result.key = C0.ESC + '[20;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[20~';
+      }
+      break;
+    case 121:
+      if (modifiers) {
+        result.key = C0.ESC + '[21;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[21~';
+      }
+      break;
+    case 122:
+      if (modifiers) {
+        result.key = C0.ESC + '[23;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[23~';
+      }
+      break;
+    case 123:
+      if (modifiers) {
+        result.key = C0.ESC + '[24;' + (modifiers + 1) + '~';
+      } else {
+        result.key = C0.ESC + '[24~';
+      }
+      break;
+    default:
+      // a-z and space
+      if (ev.ctrlKey && !ev.shiftKey && !ev.altKey && !ev.metaKey) {
+        if (ev.keyCode >= 65 && ev.keyCode <= 90) {
+          result.key = String.fromCharCode(ev.keyCode - 64);
+        } else if (ev.keyCode === 32) {
+          // NUL
+          result.key = String.fromCharCode(0);
+        } else if (ev.keyCode >= 51 && ev.keyCode <= 55) {
+          // escape, file sep, group sep, record sep, unit sep
+          result.key = String.fromCharCode(ev.keyCode - 51 + 27);
+        } else if (ev.keyCode === 56) {
+          // delete
+          result.key = String.fromCharCode(127);
+        } else if (ev.keyCode === 219) {
+          // ^[ - Control Sequence Introducer (CSI)
+          result.key = String.fromCharCode(27);
+        } else if (ev.keyCode === 220) {
+          // ^\ - String Terminator (ST)
+          result.key = String.fromCharCode(28);
+        } else if (ev.keyCode === 221) {
+          // ^] - Operating System Command (OSC)
+          result.key = String.fromCharCode(29);
+        }
+      } else if ((!isMac || macOptionIsMeta) && ev.altKey && !ev.metaKey) {
+        // On macOS this is a third level shift when !macOptionIsMeta. Use <Esc> instead.
+        const keyMapping = KEYCODE_KEY_MAPPINGS[ev.keyCode];
+        const key = keyMapping && keyMapping[!ev.shiftKey ? 0 : 1];
+        if (key) {
+          result.key = C0.ESC + key;
+        } else if (ev.keyCode >= 65 && ev.keyCode <= 90) {
+          const keyCode = ev.ctrlKey ? ev.keyCode - 64 : ev.keyCode + 32;
+          result.key = C0.ESC + String.fromCharCode(keyCode);
+        }
+      } else if (isMac && !ev.altKey && !ev.ctrlKey && ev.metaKey) {
+        if (ev.keyCode === 65) { // cmd + a
+          result.type = KeyboardResultType.SELECT_ALL;
+        }
+      }
+      break;
+  }
+
+  return result;
+}

src/handlers/AltClickHandler.ts

@@ -4,7 +4,7 @@
  */
 
 import { ITerminal, ICircularList, LineData } from '../Types';
-import { C0 } from '../EscapeSequences';
+import { C0 } from '../common/data/EscapeSequences';
 
 const enum Direction {
   UP = 'A',
@@ -28,7 +28,7 @@ export class AltClickHandler {
     this._startCol = this._terminal.buffer.x;
     this._startRow = this._terminal.buffer.y;
 
-    let coordinates = this._terminal.mouseHelper.getCoords(
+    const coordinates = this._terminal.mouseHelper.getCoords(
       this._mouseEvent,
       this._terminal.element,
       this._terminal.charMeasure,
@@ -89,10 +89,10 @@ export class AltClickHandler {
    * ignoring wrapped rows
    */
   private _moveToRequestedRow(): string {
-    let startRow = this._startRow - this._wrappedRowsForRow(this._startRow);
-    let endRow = this._endRow - this._wrappedRowsForRow(this._endRow);
+    const startRow = this._startRow - this._wrappedRowsForRow(this._startRow);
+    const endRow = this._endRow - this._wrappedRowsForRow(this._endRow);
 
-    let rowsToMove = Math.abs(startRow - endRow) - this._wrappedRowsCount();
+    const rowsToMove = Math.abs(startRow - endRow) - this._wrappedRowsCount();
 
     return repeat(rowsToMove, this._sequence(this._verticalDirection()));
   }
@@ -108,8 +108,8 @@ export class AltClickHandler {
       startRow = this._startRow;
     }
 
-    let endRow = this._endRow;
-    let direction = this._horizontalDirection();
+    const endRow = this._endRow;
+    const direction = this._horizontalDirection();
 
     return repeat(this._bufferLine(
       this._startCol, startRow, this._endCol, endRow,
@@ -118,7 +118,7 @@ export class AltClickHandler {
   }
 
   private _moveHorizontallyOnly(): string {
-    let direction = this._horizontalDirection();
+    const direction = this._horizontalDirection();
     return repeat(Math.abs(this._startCol - this._endCol), this._sequence(direction));
   }
 
@@ -132,11 +132,11 @@ export class AltClickHandler {
    */
   private _wrappedRowsCount(): number {
     let wrappedRows = 0;
-    let startRow = this._startRow - this._wrappedRowsForRow(this._startRow);
-    let endRow = this._endRow - this._wrappedRowsForRow(this._endRow);
+    const startRow = this._startRow - this._wrappedRowsForRow(this._startRow);
+    const endRow = this._endRow - this._wrappedRowsForRow(this._endRow);
 
     for (let i = 0; i < Math.abs(startRow - endRow); i++) {
-      let direction = this._verticalDirection() === Direction.UP ? -1 : 1;
+      const direction = this._verticalDirection() === Direction.UP ? -1 : 1;
 
       if ((<any>this._lines.get(startRow + (direction * i))).isWrapped) {
         wrappedRows++;

src/handlers/Clipboard.ts

@@ -58,7 +58,7 @@ export function pasteHandler(ev: ClipboardEvent, term: ITerminal): void {
 
   let text: string;
 
-  let dispatchPaste = function(text: string): void {
+  const dispatchPaste = function(text: string): void {
     text = prepareTextForTerminal(text);
     text = bracketTextForPaste(text, term.bracketedPasteMode);
     term.handler(text);

src/public/Terminal.test.ts

@@ -0,0 +1,17 @@
+/**
+ * Copyright (c) 2016 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { assert } from 'chai';
+import { Terminal } from './Terminal';
+import * as attach from '../addons/attach/attach';
+
+describe('Terminal', () => {
+  it('should apply addons with Terminal.applyAddon', () => {
+    Terminal.applyAddon(attach);
+    // Test that addon was applied successfully, adding attach to Terminal's
+    // prototype.
+    assert.equal(typeof (<any>Terminal).prototype.attach, 'function');
+  });
+});

src/public/Terminal.ts

@@ -0,0 +1,148 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { Terminal as ITerminalApi, ITerminalOptions, IMarker, IDisposable, ILinkMatcherOptions, ITheme, ILocalizableStrings } from 'xterm';
+import { ITerminal } from '../Types';
+import { Terminal as TerminalCore } from '../Terminal';
+import * as Strings from '../Strings';
+
+export class Terminal implements ITerminalApi {
+  private _core: ITerminal;
+
+  constructor(options?: ITerminalOptions) {
+    this._core = new TerminalCore(options);
+  }
+
+  public get element(): HTMLElement { return this._core.element; }
+  public get textarea(): HTMLTextAreaElement { return this._core.textarea; }
+  public get rows(): number { return this._core.rows; }
+  public get cols(): number { return this._core.cols; }
+  public get markers(): IMarker[] { return this._core.markers; }
+  public blur(): void {
+    this._core.blur();
+  }
+  public focus(): void {
+    this._core.focus();
+  }
+  public on(type: 'blur' | 'focus' | 'linefeed' | 'selection', listener: () => void): void;
+  public on(type: 'data', listener: (...args: any[]) => void): void;
+  public on(type: 'key', listener: (key?: string, event?: KeyboardEvent) => void): void;
+  public on(type: 'keypress' | 'keydown', listener: (event?: KeyboardEvent) => void): void;
+  public on(type: 'refresh', listener: (data?: { start: number; end: number; }) => void): void;
+  public on(type: 'resize', listener: (data?: { cols: number; rows: number; }) => void): void;
+  public on(type: 'scroll', listener: (ydisp?: number) => void): void;
+  public on(type: 'title', listener: (title?: string) => void): void;
+  public on(type: string, listener: (...args: any[]) => void): void;
+  public on(type: any, listener: any): void {
+    this._core.on(type, listener);
+  }
+  public off(type: string, listener: (...args: any[]) => void): void {
+    this._core.off(type, listener);
+  }
+  public emit(type: string, data?: any): void {
+    this._core.emit(type, data);
+  }
+  public addDisposableListener(type: string, handler: (...args: any[]) => void): IDisposable {
+    return this._core.addDisposableListener(type, handler);
+  }
+  public resize(columns: number, rows: number): void {
+    this._core.resize(columns, rows);
+  }
+  public writeln(data: string): void {
+    this._core.writeln(data);
+  }
+  public open(parent: HTMLElement): void {
+    this._core.open(parent);
+  }
+  public attachCustomKeyEventHandler(customKeyEventHandler: (event: KeyboardEvent) => boolean): void {
+    this._core.attachCustomKeyEventHandler(customKeyEventHandler);
+  }
+  public registerLinkMatcher(regex: RegExp, handler: (event: MouseEvent, uri: string) => void, options?: ILinkMatcherOptions): number {
+    return this._core.registerLinkMatcher(regex, handler, options);
+  }
+  public deregisterLinkMatcher(matcherId: number): void {
+    this._core.deregisterLinkMatcher(matcherId);
+  }
+  public addMarker(cursorYOffset: number): IMarker {
+    return this._core.addMarker(cursorYOffset);
+  }
+  public hasSelection(): boolean {
+    return this._core.hasSelection();
+  }
+  public getSelection(): string {
+    return this._core.getSelection();
+  }
+  public clearSelection(): void {
+    this._core.clearSelection();
+  }
+  public selectAll(): void {
+    this._core.selectAll();
+  }
+  public selectLines(start: number, end: number): void {
+    this._core.selectLines(start, end);
+  }
+  public dispose(): void {
+    this._core.dispose();
+  }
+  public destroy(): void {
+    this._core.destroy();
+  }
+  public scrollLines(amount: number): void {
+    this._core.scrollLines(amount);
+  }
+  public scrollPages(pageCount: number): void {
+    this._core.scrollPages(pageCount);
+  }
+  public scrollToTop(): void {
+    this._core.scrollToTop();
+  }
+  public scrollToBottom(): void {
+    this._core.scrollToBottom();
+  }
+  public scrollToLine(line: number): void {
+    this._core.scrollToLine(line);
+  }
+  public clear(): void {
+    this._core.clear();
+  }
+  public write(data: string): void {
+    this._core.write(data);
+  }
+  public getOption(key: 'bellSound' | 'bellStyle' | 'cursorStyle' | 'fontFamily' | 'fontWeight' | 'fontWeightBold' | 'rendererType' | 'termName'): string;
+  public getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell'): boolean;
+  public getOption(key: 'colors'): string[];
+  public getOption(key: 'cols' | 'fontSize' | 'letterSpacing' | 'lineHeight' | 'rows' | 'tabStopWidth' | 'scrollback'): number;
+  public getOption(key: 'handler'): (data: string) => void;
+  public getOption(key: string): any;
+  public getOption(key: any): any {
+    return this._core.getOption(key);
+  }
+  public setOption(key: 'bellSound' | 'fontFamily' | 'termName', value: string): void;
+  public setOption(key: 'fontWeight' | 'fontWeightBold', value: 'normal' | 'bold' | '100' | '200' | '300' | '400' | '500' | '600' | '700' | '800' | '900'): void;
+  public setOption(key: 'bellStyle', value: 'none' | 'visual' | 'sound' | 'both'): void;
+  public setOption(key: 'cursorStyle', value: 'block' | 'underline' | 'bar'): void;
+  public setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell', value: boolean): void;
+  public setOption(key: 'colors', value: string[]): void;
+  public setOption(key: 'fontSize' | 'letterSpacing' | 'lineHeight' | 'tabStopWidth' | 'scrollback', value: number): void;
+  public setOption(key: 'handler', value: (data: string) => void): void;
+  public setOption(key: 'theme', value: ITheme): void;
+  public setOption(key: 'cols' | 'rows', value: number): void;
+  public setOption(key: string, value: any): void;
+  public setOption(key: any, value: any): void {
+    this._core.setOption(key, value);
+  }
+  public refresh(start: number, end: number): void {
+    this._core.refresh(start, end);
+  }
+  public reset(): void {
+    this._core.reset();
+  }
+  public static applyAddon(addon: any): void {
+    addon.apply(Terminal);
+  }
+  public static get strings(): ILocalizableStrings {
+    return Strings;
+  }
+}

src/renderer/BaseRenderLayer.ts

@@ -49,7 +49,7 @@ export abstract class BaseRenderLayer implements IRenderLayer {
   public onFocus(terminal: ITerminal): void {}
   public onCursorMove(terminal: ITerminal): void {}
   public onGridChanged(terminal: ITerminal, startRow: number, endRow: number): void {}
-  public onSelectionChanged(terminal: ITerminal, start: [number, number], end: [number, number]): void {}
+  public onSelectionChanged(terminal: ITerminal, start: [number, number], end: [number, number], columnSelectMode: boolean = false): void {}
 
   public onThemeChanged(terminal: ITerminal, colorSet: IColorSet): void {
     this._refreshCharAtlas(terminal, colorSet);

src/renderer/ColorManager.test.ts

@@ -33,10 +33,10 @@ describe('ColorManager', () => {
 
   describe('constructor', () => {
     it('should fill all colors with values', () => {
-      for (let key of Object.keys(cm.colors)) {
+      for (const key of Object.keys(cm.colors)) {
         if (key !== 'ansi') {
           // A #rrggbb or rgba(...)
-          assert.ok(cm.colors[key].css.length >= 7);
+          assert.ok((<any>cm.colors)[key].css.length >= 7);
         }
       }
       assert.equal(cm.colors.ansi.length, 256);

src/renderer/ColorManager.ts

@@ -42,7 +42,7 @@ export const DEFAULT_ANSI_COLORS = (() => {
 
   // Fill in the remaining 240 ANSI colors.
   // Generate colors (16-231)
-  let v = [0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff];
+  const v = [0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff];
   for (let i = 0; i < 216; i++) {
     const r = v[(i / 36) % 6 | 0];
     const g = v[(i / 6) % 6 | 0];
@@ -75,7 +75,7 @@ function fromHex(css: string): IColor {
 }
 
 function toPaddedHex(c: number): string {
-  let s = c.toString(16);
+  const s = c.toString(16);
   return s.length < 2 ? '0' + s : s;
 }
 

src/renderer/Renderer.ts

@@ -11,8 +11,8 @@ import { IRenderLayer, IColorSet, IRenderer, IRenderDimensions } from './Types';
 import { ITerminal } from '../Types';
 import { LinkRenderLayer } from './LinkRenderLayer';
 import { EventEmitter } from '../EventEmitter';
-import { RenderDebouncer } from '../utils/RenderDebouncer';
-import { ScreenDprMonitor } from '../utils/ScreenDprMonitor';
+import { RenderDebouncer } from '../ui/RenderDebouncer';
+import { ScreenDprMonitor } from '../ui/ScreenDprMonitor';
 import { ITheme } from 'xterm';
 
 export class Renderer extends EventEmitter implements IRenderer {
@@ -62,12 +62,14 @@ export class Renderer extends EventEmitter implements IRenderer {
     this._renderDebouncer = new RenderDebouncer(this._terminal, this._renderRows.bind(this));
     this._screenDprMonitor = new ScreenDprMonitor();
     this._screenDprMonitor.setListener(() => this.onWindowResize(window.devicePixelRatio));
+    this.register(this._screenDprMonitor);
 
     // Detect whether IntersectionObserver is detected and enable renderer pause
     // and resume based on terminal visibility if so
     if ('IntersectionObserver' in window) {
       const observer = new IntersectionObserver(e => this.onIntersectionChange(e[0]), {threshold: 0});
       observer.observe(this._terminal.element);
+      this.register({ dispose: () => observer.disconnect() });
     }
   }
 
@@ -141,8 +143,8 @@ export class Renderer extends EventEmitter implements IRenderer {
     this._runOperation(l => l.onFocus(this._terminal));
   }
 
-  public onSelectionChanged(start: [number, number], end: [number, number]): void {
-    this._runOperation(l => l.onSelectionChanged(this._terminal, start, end));
+  public onSelectionChanged(start: [number, number], end: [number, number], columnSelectMode: boolean = false): void {
+    this._runOperation(l => l.onSelectionChanged(this._terminal, start, end, columnSelectMode));
   }
 
   public onCursorMove(): void {

src/renderer/SelectionRenderLayer.ts

@@ -7,39 +7,46 @@ import { ITerminal } from '../Types';
 import { IColorSet, IRenderDimensions } from './Types';
 import { BaseRenderLayer } from './BaseRenderLayer';
 
+interface ISelectionState {
+  start: [number, number];
+  end: [number, number];
+  columnSelectMode: boolean;
+  ydisp: number;
+}
+
 export class SelectionRenderLayer extends BaseRenderLayer {
-  private _state: {start: [number, number], end: [number, number]};
+  private _state: ISelectionState;
 
   constructor(container: HTMLElement, zIndex: number, colors: IColorSet) {
     super(container, 'selection', zIndex, true, colors);
+    this._clearState();
+  }
+
+  private _clearState(): void {
     this._state = {
       start: null,
-      end: null
+      end: null,
+      columnSelectMode: null,
+      ydisp: null
     };
   }
 
   public resize(terminal: ITerminal, dim: IRenderDimensions): void {
     super.resize(terminal, dim);
     // Resizing the canvas discards the contents of the canvas so clear state
-    this._state = {
-      start: null,
-      end: null
-    };
+    this._clearState();
   }
 
   public reset(terminal: ITerminal): void {
     if (this._state.start && this._state.end) {
-      this._state = {
-        start: null,
-        end: null
-      };
+      this._clearState();
       this.clearAll();
     }
   }
 
-  public onSelectionChanged(terminal: ITerminal, start: [number, number], end: [number, number]): void {
+  public onSelectionChanged(terminal: ITerminal, start: [number, number], end: [number, number], columnSelectMode: boolean): void {
     // Selection has not changed
-    if (this._state.start === start || this._state.end === end) {
+    if (!this._didStateChange(start, end, columnSelectMode, terminal.buffer.ydisp)) {
       return;
     }
 
@@ -62,25 +69,50 @@ export class SelectionRenderLayer extends BaseRenderLayer {
       return;
     }
 
-    // Draw first row
-    const startCol = viewportStartRow === viewportCappedStartRow ? start[0] : 0;
-    const startRowEndCol = viewportCappedStartRow === viewportCappedEndRow ? end[0] : terminal.cols;
     this._ctx.fillStyle = this._colors.selection.css;
-    this.fillCells(startCol, viewportCappedStartRow, startRowEndCol - startCol, 1);
 
-    // Draw middle rows
-    const middleRowsCount = Math.max(viewportCappedEndRow - viewportCappedStartRow - 1, 0);
-    this.fillCells(0, viewportCappedStartRow + 1, terminal.cols, middleRowsCount);
+    if (columnSelectMode) {
+      const startCol = viewportStartRow === viewportCappedStartRow ? start[0] : 0;
+      const width = end[0] - startCol;
+      const height = viewportCappedEndRow - viewportCappedStartRow + 1;
+      this.fillCells(startCol, viewportCappedStartRow, width, height);
+    } else {
+      // Draw first row
+      const startCol = viewportStartRow === viewportCappedStartRow ? start[0] : 0;
+      const startRowEndCol = viewportCappedStartRow === viewportCappedEndRow ? end[0] : terminal.cols;
+      this.fillCells(startCol, viewportCappedStartRow, startRowEndCol - startCol, 1);
 
-    // Draw final row
-    if (viewportCappedStartRow !== viewportCappedEndRow) {
-      // Only draw viewportEndRow if it's not the same as viewportStartRow
-      const endCol = viewportEndRow === viewportCappedEndRow ? end[0] : terminal.cols;
-      this.fillCells(0, viewportCappedEndRow, endCol, 1);
+      // Draw middle rows
+      const middleRowsCount = Math.max(viewportCappedEndRow - viewportCappedStartRow - 1, 0);
+      this.fillCells(0, viewportCappedStartRow + 1, terminal.cols, middleRowsCount);
+
+      // Draw final row
+      if (viewportCappedStartRow !== viewportCappedEndRow) {
+        // Only draw viewportEndRow if it's not the same as viewportStartRow
+        const endCol = viewportEndRow === viewportCappedEndRow ? end[0] : terminal.cols;
+        this.fillCells(0, viewportCappedEndRow, endCol, 1);
+      }
     }
 
     // Save state for next render
     this._state.start = [start[0], start[1]];
     this._state.end = [end[0], end[1]];
+    this._state.columnSelectMode = columnSelectMode;
+    this._state.ydisp = terminal.buffer.ydisp;
+  }
+
+  private _didStateChange(start: [number, number], end: [number, number], columnSelectMode: boolean, ydisp: number): boolean {
+    return !this._areCoordinatesEqual(start, this._state.start) ||
+      !this._areCoordinatesEqual(end, this._state.end) ||
+      columnSelectMode !== this._state.columnSelectMode ||
+      ydisp !== this._state.ydisp;
+  }
+
+  private _areCoordinatesEqual(coord1: [number, number], coord2: [number, number]): boolean {
+    if (!coord1 || !coord2) {
+      return false;
+    }
+
+    return coord1[0] === coord2[0] && coord1[1] === coord2[1];
   }
 }

src/renderer/TextRenderLayer.ts

@@ -208,7 +208,9 @@ export class TextRenderLayer extends BaseRenderLayer {
       return;
     }
 
-    this._charAtlas.beginFrame();
+    if (this._charAtlas) {
+      this._charAtlas.beginFrame();
+    }
 
     this.clearCells(0, firstRow, terminal.cols, lastRow - firstRow + 1);
     this._drawBackground(terminal, firstRow, lastRow);

src/renderer/Types.ts

@@ -4,7 +4,7 @@
  */
 
 import { ITerminal } from '../Types';
-import { IEventEmitter, ITheme } from 'xterm';
+import { IEventEmitter, ITheme, IDisposable } from 'xterm';
 import { IColorSet } from '../shared/Types';
 
 /**
@@ -20,17 +20,22 @@ export const enum FLAGS {
   ITALIC = 64
 }
 
-export interface IRenderer extends IEventEmitter {
+/**
+ * Note that IRenderer implementations should emit the refresh event after
+ * rendering rows to the screen.
+ */
+export interface IRenderer extends IEventEmitter, IDisposable {
   dimensions: IRenderDimensions;
   colorManager: IColorManager;
 
+  dispose(): void;
   setTheme(theme: ITheme): IColorSet;
   onWindowResize(devicePixelRatio: number): void;
   onResize(cols: number, rows: number): void;
   onCharSizeChanged(): void;
   onBlur(): void;
   onFocus(): void;
-  onSelectionChanged(start: [number, number], end: [number, number]): void;
+  onSelectionChanged(start: [number, number], end: [number, number], columnSelectMode: boolean): void;
   onCursorMove(): void;
   onOptionsChanged(): void;
   clear(): void;
@@ -94,7 +99,7 @@ export interface IRenderLayer {
   /**
    * Calls when the selection changes.
    */
-  onSelectionChanged(terminal: ITerminal, start: [number, number], end: [number, number]): void;
+  onSelectionChanged(terminal: ITerminal, start: [number, number], end: [number, number], columnSelectMode: boolean): void;
 
   /**
    * Resize the render layer.

src/renderer/atlas/CharAtlasUtils.ts

@@ -9,7 +9,7 @@ import { ICharAtlasConfig } from '../../shared/atlas/Types';
 
 export function generateConfig(scaledCharWidth: number, scaledCharHeight: number, terminal: ITerminal, colors: IColorSet): ICharAtlasConfig {
   // null out some fields that don't matter
-  const clonedColors = {
+  const clonedColors = <IColorSet>{
     foreground: colors.foreground,
     background: colors.background,
     cursor: null,

src/renderer/atlas/LRUMap.ts

@@ -11,7 +11,7 @@ interface ILinkedListNode<T> {
 }
 
 export default class LRUMap<T> {
-  private _map = {};
+  private _map: { [key: string]: ILinkedListNode<T> } = {};
   private _head: ILinkedListNode<T> = null;
   private _tail: ILinkedListNode<T> = null;
   private _nodePool: ILinkedListNode<T>[] = [];

src/renderer/atlas/StaticCharAtlas.ts

@@ -19,10 +19,14 @@ export default class StaticCharAtlas extends BaseCharAtlas {
     const canvas = this._document.createElement('canvas');
     canvas.width = width;
     canvas.height = height;
+
+    // This is useful for debugging
+    // document.body.appendChild(canvas);
+
     return canvas;
   }
 
-  public _doWarmUp(): void {
+  protected _doWarmUp(): void {
     const result = generateStaticCharAtlasTexture(window, this._canvasFactory, this._config);
     if (result instanceof HTMLCanvasElement) {
       this._texture = result;
@@ -65,6 +69,9 @@ export default class StaticCharAtlas extends BaseCharAtlas {
     if (!this._isCached(glyph, colorIndex)) {
       return false;
     }
+
+    ctx.save();
+
     // ImageBitmap's draw about twice as fast as from a canvas
     const charAtlasCellWidth = this._config.scaledCharWidth + CHAR_ATLAS_CELL_SPACING;
     const charAtlasCellHeight = this._config.scaledCharHeight + CHAR_ATLAS_CELL_SPACING;
@@ -86,6 +93,8 @@ export default class StaticCharAtlas extends BaseCharAtlas {
       this._config.scaledCharHeight
     );
 
+    ctx.restore();
+
     return true;
   }
 }

src/renderer/dom/DomRenderer.ts

@@ -0,0 +1,322 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { IRenderer, IRenderDimensions, IColorSet } from '../Types';
+import { ITerminal } from '../../Types';
+import { ITheme } from 'xterm';
+import { EventEmitter } from '../../EventEmitter';
+import { ColorManager } from '../ColorManager';
+import { RenderDebouncer } from '../../ui/RenderDebouncer';
+import { BOLD_CLASS, ITALIC_CLASS, CURSOR_CLASS, DomRendererRowFactory } from './DomRendererRowFactory';
+
+const TERMINAL_CLASS_PREFIX = 'xterm-dom-renderer-owner-';
+const ROW_CONTAINER_CLASS = 'xterm-rows';
+const FG_CLASS_PREFIX = 'xterm-fg-';
+const BG_CLASS_PREFIX = 'xterm-bg-';
+const FOCUS_CLASS = 'xterm-focus';
+const SELECTION_CLASS = 'xterm-selection';
+
+let nextTerminalId = 1;
+
+// TODO: Pull into an addon when TS composite projects allow easier sharing of code (not just
+// interfaces) between core and addons
+
+/**
+ * A fallback renderer for when canvas is slow. This is not meant to be
+ * particularly fast or feature complete, more just stable and usable for when
+ * canvas is not an option.
+ */
+export class DomRenderer extends EventEmitter implements IRenderer {
+  private _renderDebouncer: RenderDebouncer;
+  private _rowFactory: DomRendererRowFactory;
+  private _terminalClass: number = nextTerminalId++;
+
+  private _themeStyleElement: HTMLStyleElement;
+  private _dimensionsStyleElement: HTMLStyleElement;
+  private _rowContainer: HTMLElement;
+  private _rowElements: HTMLElement[] = [];
+  private _selectionContainer: HTMLElement;
+
+  public dimensions: IRenderDimensions;
+  public colorManager: ColorManager;
+
+  constructor(private _terminal: ITerminal, theme: ITheme | undefined) {
+    super();
+    const allowTransparency = this._terminal.options.allowTransparency;
+    this.colorManager = new ColorManager(document, allowTransparency);
+    this.setTheme(theme);
+
+    this._rowContainer = document.createElement('div');
+    this._rowContainer.classList.add(ROW_CONTAINER_CLASS);
+    this._rowContainer.style.lineHeight = 'normal';
+    this._rowContainer.setAttribute('aria-hidden', 'true');
+    this._refreshRowElements(this._terminal.rows, this._terminal.cols);
+    this._selectionContainer = document.createElement('div');
+    this._selectionContainer.classList.add(SELECTION_CLASS);
+    this._selectionContainer.setAttribute('aria-hidden', 'true');
+
+    this.dimensions = {
+      scaledCharWidth: null,
+      scaledCharHeight: null,
+      scaledCellWidth: null,
+      scaledCellHeight: null,
+      scaledCharLeft: null,
+      scaledCharTop: null,
+      scaledCanvasWidth: null,
+      scaledCanvasHeight: null,
+      canvasWidth: null,
+      canvasHeight: null,
+      actualCellWidth: null,
+      actualCellHeight: null
+    };
+    this._updateDimensions();
+
+    this._renderDebouncer = new RenderDebouncer(this._terminal, this._renderRows.bind(this));
+    this._rowFactory = new DomRendererRowFactory(document);
+
+    this._terminal.element.classList.add(TERMINAL_CLASS_PREFIX + this._terminalClass);
+    this._terminal.screenElement.appendChild(this._rowContainer);
+    this._terminal.screenElement.appendChild(this._selectionContainer);
+  }
+
+  private _updateDimensions(): void {
+    this.dimensions.scaledCharWidth = this._terminal.charMeasure.width * window.devicePixelRatio;
+    this.dimensions.scaledCharHeight = this._terminal.charMeasure.height * window.devicePixelRatio;
+    this.dimensions.scaledCellWidth = this.dimensions.scaledCharWidth;
+    this.dimensions.scaledCellHeight = this.dimensions.scaledCharHeight;
+    this.dimensions.scaledCharLeft = 0;
+    this.dimensions.scaledCharTop = 0;
+    this.dimensions.scaledCanvasWidth = this.dimensions.scaledCellWidth * this._terminal.cols;
+    this.dimensions.scaledCanvasHeight = this.dimensions.scaledCellHeight * this._terminal.rows;
+    this.dimensions.canvasWidth = this._terminal.charMeasure.width * this._terminal.cols;
+    this.dimensions.canvasHeight = this._terminal.charMeasure.height * this._terminal.rows;
+    this.dimensions.actualCellWidth = this._terminal.charMeasure.width;
+    this.dimensions.actualCellHeight = this._terminal.charMeasure.height;
+
+    this._rowElements.forEach(element => {
+      element.style.width = `${this.dimensions.canvasWidth}px`;
+      element.style.height = `${this._terminal.charMeasure.height}px`;
+    });
+
+    if (!this._dimensionsStyleElement) {
+      this._dimensionsStyleElement = document.createElement('style');
+      this._terminal.screenElement.appendChild(this._dimensionsStyleElement);
+    }
+
+    const styles =
+        `${this._terminalSelector} .${ROW_CONTAINER_CLASS} span {` +
+        ` display: inline-block;` +
+        ` height: 100%;` +
+        ` vertical-align: top;` +
+        ` width: ${this._terminal.charMeasure.width}px` +
+        `}`;
+
+    this._dimensionsStyleElement.innerHTML = styles;
+
+    this._selectionContainer.style.height = (<any>this._terminal)._viewportElement.style.height;
+    this._rowContainer.style.width = `${this.dimensions.canvasWidth}px`;
+    this._rowContainer.style.height = `${this.dimensions.canvasHeight}px`;
+  }
+
+  public setTheme(theme: ITheme | undefined): IColorSet {
+    if (theme) {
+      this.colorManager.setTheme(theme);
+    }
+
+    if (!this._themeStyleElement) {
+      this._themeStyleElement = document.createElement('style');
+      this._terminal.screenElement.appendChild(this._themeStyleElement);
+    }
+
+    // Base CSS
+    let styles =
+        `${this._terminalSelector} .${ROW_CONTAINER_CLASS} {` +
+        ` color: ${this.colorManager.colors.foreground.css};` +
+        ` background-color: ${this.colorManager.colors.background.css};` +
+        ` font-family: ${this._terminal.getOption('fontFamily')};` +
+        ` font-size: ${this._terminal.getOption('fontSize')}px;` +
+        `}`;
+    // Text styles
+    styles +=
+        `${this._terminalSelector} span:not(.${BOLD_CLASS}) {` +
+        ` font-weight: ${this._terminal.options.fontWeight};` +
+        `}` +
+        `${this._terminalSelector} span.${BOLD_CLASS} {` +
+        ` font-weight: ${this._terminal.options.fontWeightBold};` +
+        `}` +
+        `${this._terminalSelector} span.${ITALIC_CLASS} {` +
+        ` font-style: italic;` +
+        `}`;
+    // Cursor
+    styles +=
+        `${this._terminalSelector} .${ROW_CONTAINER_CLASS}.${FOCUS_CLASS} .${CURSOR_CLASS} {` +
+        ` background-color: ${this.colorManager.colors.cursor.css};` +
+        ` color: ${this.colorManager.colors.cursorAccent.css};` +
+        `}` +
+        `${this._terminalSelector} .${ROW_CONTAINER_CLASS}:not(.${FOCUS_CLASS}) .${CURSOR_CLASS} {` +
+        ` outline: 1px solid #fff;` +
+        ` outline-offset: -1px;` +
+        `}`;
+    // Selection
+    styles +=
+        `${this._terminalSelector} .${SELECTION_CLASS} {` +
+        ` position: absolute;` +
+        ` top: 0;` +
+        ` left: 0;` +
+        ` z-index: 1;` +
+        ` pointer-events: none;` +
+        `}` +
+        `${this._terminalSelector} .${SELECTION_CLASS} div {` +
+        ` position: absolute;` +
+        ` background-color: ${this.colorManager.colors.selection.css};` +
+        `}`;
+    // Colors
+    this.colorManager.colors.ansi.forEach((c, i) => {
+      styles +=
+          `${this._terminalSelector} .${FG_CLASS_PREFIX}${i} { color: ${c.css}; }` +
+          `${this._terminalSelector} .${BG_CLASS_PREFIX}${i} { background-color: ${c.css}; }`;
+    });
+
+    this._themeStyleElement.innerHTML = styles;
+    return this.colorManager.colors;
+  }
+
+  public onWindowResize(devicePixelRatio: number): void {
+    this._updateDimensions();
+  }
+
+  private _refreshRowElements(cols: number, rows: number): void {
+    // Add missing elements
+    for (let i = this._rowElements.length; i <= rows; i++) {
+      const row = document.createElement('div');
+      this._rowContainer.appendChild(row);
+      this._rowElements.push(row);
+    }
+    // Remove excess elements
+    while (this._rowElements.length > rows) {
+      this._rowContainer.removeChild(this._rowElements.pop());
+    }
+  }
+
+  public onResize(cols: number, rows: number): void {
+    this._refreshRowElements(cols, rows);
+    this._updateDimensions();
+  }
+
+  public onCharSizeChanged(): void {
+    this._updateDimensions();
+  }
+
+  public onBlur(): void {
+    this._rowContainer.classList.remove(FOCUS_CLASS);
+  }
+
+  public onFocus(): void {
+    this._rowContainer.classList.add(FOCUS_CLASS);
+  }
+
+  public onSelectionChanged(start: [number, number], end: [number, number], columnSelectMode: boolean): void {
+    // Remove all selections
+    while (this._selectionContainer.children.length) {
+      this._selectionContainer.removeChild(this._selectionContainer.children[0]);
+    }
+
+    // Selection does not exist
+    if (!start || !end) {
+      return;
+    }
+
+    // Translate from buffer position to viewport position
+    const viewportStartRow = start[1] - this._terminal.buffer.ydisp;
+    const viewportEndRow = end[1] - this._terminal.buffer.ydisp;
+    const viewportCappedStartRow = Math.max(viewportStartRow, 0);
+    const viewportCappedEndRow = Math.min(viewportEndRow, this._terminal.rows - 1);
+
+    // No need to draw the selection
+    if (viewportCappedStartRow >= this._terminal.rows || viewportCappedEndRow < 0) {
+      return;
+    }
+
+    // Create the selections
+    const documentFragment = document.createDocumentFragment();
+    const startCol = viewportStartRow === viewportCappedStartRow ? start[0] : 0;
+
+    if (columnSelectMode) {
+      documentFragment.appendChild(
+        this._createSelectionElement(viewportCappedStartRow, startCol, end[0], viewportCappedEndRow - viewportStartRow + 1)
+      );
+    } else {
+      // Draw first row
+      const endCol = viewportCappedStartRow === viewportCappedEndRow ? end[0] : this._terminal.cols;
+      documentFragment.appendChild(this._createSelectionElement(viewportCappedStartRow, startCol, endCol));
+      // Draw middle rows
+      const middleRowsCount = viewportCappedEndRow - viewportCappedStartRow - 1;
+      documentFragment.appendChild(this._createSelectionElement(viewportCappedStartRow + 1, 0, this._terminal.cols, middleRowsCount));
+      // Draw final row
+      if (viewportCappedStartRow !== viewportCappedEndRow) {
+        // Only draw viewportEndRow if it's not the same as viewporttartRow
+        const endCol = viewportEndRow === viewportCappedEndRow ? end[0] : this._terminal.cols;
+        documentFragment.appendChild(this._createSelectionElement(viewportCappedEndRow, 0, endCol));
+      }
+    }
+    this._selectionContainer.appendChild(documentFragment);
+  }
+
+  /**
+   * Creates a selection element at the specified position.
+   * @param row The row of the selection.
+   * @param colStart The start column.
+   * @param colEnd The end columns.
+   */
+  private _createSelectionElement(row: number, colStart: number, colEnd: number, rowCount: number = 1): HTMLElement {
+    const element = document.createElement('div');
+    element.style.height = `${rowCount * this._terminal.charMeasure.height}px`;
+    element.style.top = `${row * this._terminal.charMeasure.height}px`;
+    element.style.left = `${colStart * this._terminal.charMeasure.width}px`;
+    element.style.width = `${this._terminal.charMeasure.width * (colEnd - colStart)}px`;
+    return element;
+  }
+
+  public onCursorMove(): void {
+    // No-op, the cursor is drawn when rows are drawn
+  }
+
+  public onOptionsChanged(): void {
+    // Force a refresh
+    this._updateDimensions();
+    this.setTheme(undefined);
+    this._terminal.refresh(0, this._terminal.rows - 1);
+  }
+
+  public clear(): void {
+    this._rowElements.forEach(e => e.innerHTML = '');
+  }
+
+  public refreshRows(start: number, end: number): void {
+    this._renderDebouncer.refresh(start, end);
+  }
+
+  private _renderRows(start: number, end: number): void {
+    const terminal = this._terminal;
+
+    const cursorAbsoluteY = terminal.buffer.ybase + terminal.buffer.y;
+    const cursorX = this._terminal.buffer.x;
+
+    for (let y = start; y <= end; y++) {
+      const rowElement = this._rowElements[y];
+      rowElement.innerHTML = '';
+
+      const row = y + terminal.buffer.ydisp;
+      const lineData = terminal.buffer.lines.get(row);
+      rowElement.appendChild(this._rowFactory.createRow(lineData, row === cursorAbsoluteY, cursorX, terminal.charMeasure.width, terminal.cols));
+    }
+
+    this._terminal.emit('refresh', {start, end});
+  }
+
+  private get _terminalSelector(): string {
+    return `.${TERMINAL_CLASS_PREFIX}${this._terminalClass}`;
+  }
+}

src/renderer/dom/DomRendererRowFactory.test.ts

@@ -0,0 +1,156 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import jsdom = require('jsdom');
+import { assert } from 'chai';
+import { DomRendererRowFactory } from './DomRendererRowFactory';
+import { LineData } from '../../Types';
+import { DEFAULT_ATTR } from '../../Buffer';
+import { FLAGS } from '../Types';
+
+describe('DomRendererRowFactory', () => {
+  let dom: jsdom.JSDOM;
+  let rowFactory: DomRendererRowFactory;
+  let lineData: LineData;
+
+  beforeEach(() => {
+    dom = new jsdom.JSDOM('');
+    rowFactory = new DomRendererRowFactory(dom.window.document);
+    lineData = createEmptyLineData(2);
+  });
+
+  describe('createRow', () => {
+    it('should create an element for every character in the row', () => {
+      const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+      assert.equal(getFragmentHtml(fragment),
+        '<span> </span>' +
+        '<span> </span>'
+      );
+    });
+
+    it('should set correct attributes for double width characters', () => {
+      lineData[0] = [DEFAULT_ATTR, '語', 2, '語'.charCodeAt(0)];
+      // There should be no element for the following "empty" cell
+      lineData[1] = [DEFAULT_ATTR, '', 0, undefined];
+      const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+      assert.equal(getFragmentHtml(fragment),
+        '<span style="width: 10px;">語</span>'
+      );
+    });
+
+    it('should add class for cursor', () => {
+      const fragment = rowFactory.createRow(lineData, true, 0, 5, 20);
+      assert.equal(getFragmentHtml(fragment),
+        '<span class="xterm-cursor"> </span>' +
+        '<span> </span>'
+      );
+    });
+
+    it('should not render cells that go beyond the terminal\'s columns', () => {
+      lineData[0] = [DEFAULT_ATTR, 'a', 1, 'a'.charCodeAt(0)];
+      lineData[1] = [DEFAULT_ATTR, 'b', 1, 'b'.charCodeAt(0)];
+      const fragment = rowFactory.createRow(lineData, false, 0, 5, 1);
+      assert.equal(getFragmentHtml(fragment),
+        '<span>a</span>'
+      );
+    });
+
+    describe('attributes', () => {
+      it('should add class for bold', () => {
+        lineData[0] = [DEFAULT_ATTR | (FLAGS.BOLD << 18), 'a', 1, 'a'.charCodeAt(0)];
+        const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+        assert.equal(getFragmentHtml(fragment),
+          '<span class="xterm-bold">a</span>' +
+          '<span> </span>'
+        );
+      });
+
+      it('should add class for italic', () => {
+        lineData[0] = [DEFAULT_ATTR | (FLAGS.ITALIC << 18), 'a', 1, 'a'.charCodeAt(0)];
+        const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+        assert.equal(getFragmentHtml(fragment),
+          '<span class="xterm-italic">a</span>' +
+          '<span> </span>'
+        );
+      });
+
+      it('should add classes for 256 foreground colors', () => {
+        const defaultAttrNoFgColor = (0 << 9) | (256 << 0);
+        for (let i = 0; i < 256; i++) {
+          lineData[0] = [defaultAttrNoFgColor | (i << 9), 'a', 1, 'a'.charCodeAt(0)];
+          const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+          assert.equal(getFragmentHtml(fragment),
+            `<span class="xterm-fg-${i}">a</span>` +
+            '<span> </span>'
+          );
+        }
+      });
+
+      it('should add classes for 256 background colors', () => {
+        const defaultAttrNoBgColor = (257 << 9) | (0 << 0);
+        for (let i = 0; i < 256; i++) {
+          lineData[0] = [defaultAttrNoBgColor | (i << 0), 'a', 1, 'a'.charCodeAt(0)];
+          const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+          assert.equal(getFragmentHtml(fragment),
+            `<span class="xterm-bg-${i}">a</span>` +
+            '<span> </span>'
+          );
+        }
+      });
+
+      it('should correctly invert colors', () => {
+        lineData[0] = [(FLAGS.INVERSE << 18) | (2 << 9) | (1 << 0), 'a', 1, 'a'.charCodeAt(0)];
+        const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+        assert.equal(getFragmentHtml(fragment),
+          '<span class="xterm-fg-1 xterm-bg-2">a</span>' +
+          '<span> </span>'
+        );
+      });
+
+      it('should correctly invert default fg color', () => {
+        lineData[0] = [(FLAGS.INVERSE << 18) | (257 << 9) | (1 << 0), 'a', 1, 'a'.charCodeAt(0)];
+        const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+        assert.equal(getFragmentHtml(fragment),
+          '<span class="xterm-fg-1 xterm-bg-15">a</span>' +
+          '<span> </span>'
+        );
+      });
+
+      it('should correctly invert default bg color', () => {
+        lineData[0] = [(FLAGS.INVERSE << 18) | (1 << 9) | (256 << 0), 'a', 1, 'a'.charCodeAt(0)];
+        const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+        assert.equal(getFragmentHtml(fragment),
+          '<span class="xterm-fg-0 xterm-bg-1">a</span>' +
+          '<span> </span>'
+        );
+      });
+
+      it('should turn bold fg text bright', () => {
+        for (let i = 0; i < 8; i++) {
+          lineData[0] = [(FLAGS.BOLD << 18) | (i << 9) | (256 << 0), 'a', 1, 'a'.charCodeAt(0)];
+          const fragment = rowFactory.createRow(lineData, false, 0, 5, 20);
+          assert.equal(getFragmentHtml(fragment),
+            `<span class="xterm-bold xterm-fg-${i + 8}">a</span>` +
+            '<span> </span>'
+          );
+        }
+      });
+    });
+  });
+
+  function getFragmentHtml(fragment: DocumentFragment): string {
+    const element = dom.window.document.createElement('div');
+    element.appendChild(fragment);
+    return element.innerHTML;
+  }
+
+  function createEmptyLineData(cols: number): LineData {
+    const lineData: LineData = [];
+    for (let i = 0; i < cols; i++) {
+      lineData.push([DEFAULT_ATTR, ' ', 1, 32 /* ' '.charCodeAt(0) */]);
+    }
+    return lineData;
+  }
+});

src/renderer/dom/DomRendererRowFactory.ts

@@ -0,0 +1,90 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { LineData } from '../../Types';
+import { CHAR_DATA_CHAR_INDEX, CHAR_DATA_ATTR_INDEX, CHAR_DATA_WIDTH_INDEX } from '../../Buffer';
+import { FLAGS } from '../Types';
+
+export const BOLD_CLASS = 'xterm-bold';
+export const ITALIC_CLASS = 'xterm-italic';
+export const CURSOR_CLASS = 'xterm-cursor';
+
+export class DomRendererRowFactory {
+  constructor(
+    private _document: Document
+  ) {
+  }
+
+  public createRow(lineData: LineData, isCursorRow: boolean, cursorX: number, cellWidth: number, cols: number): DocumentFragment {
+    const fragment = this._document.createDocumentFragment();
+    let colCount = 0;
+
+    for (let x = 0; x < lineData.length; x++) {
+      // Don't allow any buffer to the right to be displayed
+      if (colCount >= cols) {
+        continue;
+      }
+
+      const charData = lineData[x];
+      const char: string = charData[CHAR_DATA_CHAR_INDEX];
+      const attr: number = charData[CHAR_DATA_ATTR_INDEX];
+      const width: number = charData[CHAR_DATA_WIDTH_INDEX];
+
+      // The character to the left is a wide character, drawing is owned by the char at x-1
+      if (width === 0) {
+        continue;
+      }
+
+      const charElement = this._document.createElement('span');
+      if (width > 1) {
+        charElement.style.width = `${cellWidth * width}px`;
+      }
+
+      const flags = attr >> 18;
+      let bg = attr & 0x1ff;
+      let fg = (attr >> 9) & 0x1ff;
+
+      if (isCursorRow && x === cursorX) {
+        charElement.classList.add(CURSOR_CLASS);
+      }
+
+      // If inverse flag is on, the foreground should become the background.
+      if (flags & FLAGS.INVERSE) {
+        const temp = bg;
+        bg = fg;
+        fg = temp;
+        if (fg === 256) {
+          fg = 0;
+        }
+        if (bg === 257) {
+          bg = 15;
+        }
+      }
+
+      if (flags & FLAGS.BOLD) {
+        // Convert the FG color to the bold variant
+        if (fg < 8) {
+          fg += 8;
+        }
+        charElement.classList.add(BOLD_CLASS);
+      }
+
+      if (flags & FLAGS.ITALIC) {
+        charElement.classList.add(ITALIC_CLASS);
+      }
+
+      charElement.textContent = char;
+      if (fg !== 257) {
+        charElement.classList.add(`xterm-fg-${fg}`);
+      }
+      if (bg !== 256) {
+        charElement.classList.add(`xterm-bg-${bg}`);
+      }
+      fragment.appendChild(charElement);
+      colCount += width;
+    }
+    return fragment;
+  }
+}

src/shared/atlas/CharAtlasGenerator.ts

@@ -6,7 +6,7 @@
 import { FontWeight } from 'xterm';
 import { CHAR_ATLAS_CELL_SPACING, ICharAtlasConfig } from './Types';
 import { IColor } from '../Types';
-import { isFirefox } from '../utils/Browser';
+import { isFirefox, isSafari } from '../utils/Browser';
 
 declare const Promise: any;
 
@@ -99,14 +99,14 @@ export function generateStaticCharAtlasTexture(context: Window, canvasFactory: (
   // if support is lacking as drawImage works there too. Firefox is also
   // included here as ImageBitmap appears both buggy and has horrible
   // performance (tested on v55).
-  if (!('createImageBitmap' in context) || isFirefox) {
+  if (!('createImageBitmap' in context) || isFirefox || isSafari) {
     // Don't attempt to clear background colors if createImageBitmap is not supported
     if (canvas instanceof HTMLCanvasElement) {
       // Just return the HTMLCanvas if it's a HTMLCanvasElement
       return canvas;
     }
     // Transfer to an ImageBitmap is this is an OffscreenCanvas
-    return new Promise(r => r(canvas.transferToImageBitmap()));
+    return new Promise((r: (bitmap: ImageBitmap) => void) => r(canvas.transferToImageBitmap()));
   }
 
   const charAtlasImageData = ctx.getImageData(0, 0, canvas.width, canvas.height);

src/shared/utils/Browser.ts

@@ -8,6 +8,7 @@ const userAgent = (isNode) ? 'node' : navigator.userAgent;
 const platform = (isNode) ? 'node' : navigator.platform;
 
 export const isFirefox = !!~userAgent.indexOf('Firefox');
+export const isSafari = /^((?!chrome|android).)*safari/i.test(userAgent);
 export const isMSIE = !!~userAgent.indexOf('MSIE') || !!~userAgent.indexOf('Trident');
 
 // Find the users platform. We use this to interpret the meta key

src/ui/Lifecycle.ts

@@ -10,7 +10,7 @@ import { IDisposable } from 'xterm';
  * @param type The event type.
  * @param handler The handler for the listener.
  */
-export function addDisposableListener(
+export function addDisposableDomListener(
   node: Element | Window | Document,
   type: string,
   handler: (e: any) => void,

src/ui/MouseZoneManager.ts

@@ -5,6 +5,8 @@
 
 import { ITerminal } from '../Types';
 import { IMouseZoneManager, IMouseZone } from './Types';
+import { Disposable } from '../common/Lifecycle';
+import { addDisposableDomListener } from './Lifecycle';
 
 const HOVER_DURATION = 500;
 
@@ -16,7 +18,7 @@ const HOVER_DURATION = 500;
  * needed to support was single-line links which never overlap. Improvements can
  * be made in the future.
  */
-export class MouseZoneManager implements IMouseZoneManager {
+export class MouseZoneManager extends Disposable implements IMouseZoneManager {
   private _zones: IMouseZone[] = [];
 
   private _areZonesActive: boolean = false;
@@ -30,13 +32,20 @@ export class MouseZoneManager implements IMouseZoneManager {
   constructor(
     private _terminal: ITerminal
   ) {
-    this._terminal.element.addEventListener('mousedown', e => this._onMouseDown(e));
+    super();
+
+    this.register(addDisposableDomListener(this._terminal.element, 'mousedown', e => this._onMouseDown(e)));
 
     // These events are expensive, only listen to it when mouse zones are active
     this._mouseMoveListener = e => this._onMouseMove(e);
     this._clickListener = e => this._onClick(e);
   }
 
+  public dispose(): void {
+    super.dispose();
+    this._deactivate();
+  }
+
   public add(zone: IMouseZone): void {
     this._zones.push(zone);
     if (this._zones.length === 1) {

src/ui/ScreenDprMonitor.ts

@@ -3,6 +3,8 @@
  * @license MIT
  */
 
+import { Disposable } from '../common/Lifecycle';
+
 export type ScreenDprListener = (newDevicePixelRatio?: number, oldDevicePixelRatio?: number) => void;
 
 /**
@@ -15,7 +17,7 @@ export type ScreenDprListener = (newDevicePixelRatio?: number, oldDevicePixelRat
  * The listener should fire on both window zoom changes and switching to a
  * monitor with a different DPI.
  */
-export class ScreenDprMonitor {
+export class ScreenDprMonitor extends Disposable {
   private _currentDevicePixelRatio: number;
   private _outerListener: MediaQueryListListener;
   private _listener: ScreenDprListener;
@@ -33,6 +35,11 @@ export class ScreenDprMonitor {
     this._updateDpr();
   }
 
+  public dispose(): void {
+    super.dispose();
+    this.clearListener();
+  }
+
   private _updateDpr(): void {
     // Clear listeners for old DPR
     if (this._resolutionMediaMatchList) {

src/ui/Types.ts

@@ -3,7 +3,9 @@
  * @license MIT
  */
 
-export interface IMouseZoneManager {
+import { IDisposable } from 'xterm';
+
+export interface IMouseZoneManager extends IDisposable {
   add(zone: IMouseZone): void;
   clearAll(start?: number, end?: number): void;
 }

src/utils/Clone.test.ts

@@ -39,7 +39,7 @@ describe('clone', () => {
   });
 
   it('should clone null values', () => {
-    const test = {
+    const test: any = {
       a: null
     };
 

src/utils/TestUtils.test.ts

@@ -107,7 +107,6 @@ export class MockTerminal implements ITerminal {
   children: HTMLElement[];
   cursorHidden: boolean;
   cursorState: number;
-  defAttr: number;
   scrollback: number;
   buffers: IBufferSet;
   buffer: IBuffer;
@@ -182,9 +181,8 @@ export class MockInputHandlingTerminal implements IInputHandlingTerminal {
   insertMode: boolean;
   wraparoundMode: boolean;
   bracketedPasteMode: boolean;
-  defAttr: number;
   curAttr: number;
-  prefix: string;
+  savedCurAttr: number;
   savedCols: number;
   x10Mouse: boolean;
   vt200Mouse: boolean;
@@ -268,7 +266,7 @@ export class MockInputHandlingTerminal implements IInputHandlingTerminal {
     throw new Error('Method not implemented.');
   }
   setOption(key: string, value: any): void {
-    this.options[key] = value;
+    (<any>this.options)[key] = value;
   }
   on(type: string, listener: XtermListener): void {
     throw new Error('Method not implemented.');
@@ -303,6 +301,9 @@ export class MockBuffer implements IBuffer {
   translateBufferLineToString(lineIndex: number, trimRight: boolean, startCol?: number, endCol?: number): string {
     return Buffer.prototype.translateBufferLineToString.apply(this, arguments);
   }
+  getWrappedRangeForLine(y: number): { first: number; last: number; } {
+    throw new Error('Method not implemented.');
+  }
   nextStop(x?: number): number {
     throw new Error('Method not implemented.');
   }
@@ -315,6 +316,9 @@ export class MockBuffer implements IBuffer {
 }
 
 export class MockRenderer implements IRenderer {
+  dispose(): void {
+    throw new Error('Method not implemented.');
+  }
   colorManager: IColorManager;
   on(type: string, listener: XtermListener): void {
     throw new Error('Method not implemented.');
@@ -343,6 +347,9 @@ export class MockRenderer implements IRenderer {
 }
 
 export class MockViewport implements IViewport {
+  dispose(): void {
+    throw new Error('Method not implemented.');
+  }
   scrollBarWidth: number = 0;
   onThemeChanged(colors: IColorSet): void {
     throw new Error('Method not implemented.');

src/xterm.css

@@ -139,6 +139,11 @@
     cursor: pointer;
 }
 
+.xterm.xterm-cursor-crosshair {
+    /* Column selection mode */
+    cursor: crosshair;
+}
+
 .xterm .xterm-accessibility,
 .xterm .xterm-message {
     position: absolute;

src/xterm.ts

@@ -5,6 +5,6 @@
  * This file is the entry point for browserify.
  */
 
-import { Terminal } from './Terminal';
+import { Terminal } from './public/Terminal';
 
 module.exports = Terminal;

tsconfig.json

@@ -3,19 +3,22 @@
     "module": "commonjs",
     "target": "es5",
     "lib": [
-      "DOM",
-      "ES5",
-      "ScriptHost",
-      "ES2015.Promise"
+      "dom",
+      "es5",
+      "scripthost",
+      "es2015.promise"
     ],
     "rootDir": "src",
     "outDir": "lib",
     "sourceMap": true,
     "removeComments": true,
-    "noUnusedLocals": true
+    "preserveWatchOutput": true,
+    "noUnusedLocals": true,
+    "noImplicitAny": true
   },
   "include": [
-    "src/**/*"
+    "src/**/*",
+    "typings/xterm.d.ts"
   ],
   "exclude": [
     "src/addons/**/*"

tslint.json

@@ -31,6 +31,7 @@
       "parameter"
     ],
     "eofline": true,
+    "new-parens": true,
     "no-duplicate-imports": true,
     "no-eval": true,
     "no-internal-module": true,
@@ -93,13 +94,23 @@
 
     "naming-convention": [
       true,
-      {"type": "property", "modifiers": ["public", "static", "const"], "format": "UPPER_CASE"}
+      {"type": "default", "format": "camelCase", "leadingUnderscore": "forbid"},
+      {"type": "type", "format": "PascalCase"},
+      {"type": "class", "format": "PascalCase"},
+      {"type": "property", "modifiers": ["const"], "format": "UPPER_CASE"},
+      {"type": "member", "modifiers": ["protected"], "format": "camelCase", "leadingUnderscore": "allow"},
+      // TODO: Change allow to require when there aren't many PRs out
+      // {"type": "member", "modifiers": ["protected"], "format": "camelCase", "leadingUnderscore": "require"},
+      {"type": "member", "modifiers": ["private"], "format": "camelCase", "leadingUnderscore": "require"},
+      {"type": "variable", "modifiers": ["const"], "format": ["camelCase", "UPPER_CASE"]},
+      {"type": "interface", "prefix": "I"}
     ],
     "no-else-after-return": {
       "options": "allow-else-if"
     },
     "prefer-const-enum": [
       true
-    ]
+    ],
+    "prefer-const": true
   }
 }

typings/xterm.d.ts

@@ -13,6 +13,11 @@ declare module 'xterm' {
    */
   export type FontWeight = 'normal' | 'bold' | '100' | '200' | '300' | '400' | '500' | '600' | '700' | '800' | '900';
 
+  /**
+   * A string representing a renderer type.
+   */
+  export type RendererType = 'dom' | 'canvas';
+
   /**
    * An object containing start up options for the terminal.
    */
@@ -119,6 +124,32 @@ declare module 'xterm' {
      */
     macOptionIsMeta?: boolean;
 
+    /**
+     * Whether holding a modifier key will force normal selection behavior,
+     * regardless of whether the terminal is in mouse events mode. This will
+     * also prevent mouse events from being emitted by the terminal. For example,
+     * this allows you to use xterm.js' regular selection inside tmux with
+     * mouse mode enabled.
+     */
+    macOptionClickForcesSelection?: boolean;
+
+    /**
+     * (EXPERIMENTAL) The type of renderer to use, this allows using the
+     * fallback DOM renderer when canvas is too slow for the environment. The
+     * following features do not work when the DOM renderer is used:
+     *
+     * - Links
+     * - Line height
+     * - Letter spacing
+     * - Cursor blink
+     * - Cursor style
+     *
+     * This option is marked as experiemental because it will eventually be
+     * moved to an addon. You can only set this option in the constructor (not
+     * setOption).
+     */
+    rendererType?: RendererType;
+
     /**
      * Whether to select the word under the cursor on right click, this is
      * standard behavior in a lot of macOS applications.
@@ -530,7 +561,7 @@ declare module 'xterm' {
      * Retrieves an option's value from the terminal.
      * @param key The option key.
      */
-    getOption(key: 'bellSound' | 'bellStyle' | 'cursorStyle' | 'fontFamily' | 'fontWeight' | 'fontWeightBold'| 'termName'): string;
+    getOption(key: 'bellSound' | 'bellStyle' | 'cursorStyle' | 'fontFamily' | 'fontWeight' | 'fontWeightBold'| 'rendererType' | 'termName'): string;
     /**
      * Retrieves an option's value from the terminal.
      * @param key The option key.