Per Bothner
e5a2ebda0e
Th former doesn't support grapheme clusters, except the old-fashioned kind of simple modifiers. However, "15-graphemes" (with full cluster support) is the default.
39 lines
1.1 KiB
TypeScript
39 lines
1.1 KiB
TypeScript
/**
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* Copyright (c) 2023 The xterm.js authors. All rights reserved.
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* @license MIT
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*
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* UnicodeVersionProvider for V15 with grapeme cluster handleing.
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*/
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import { Terminal, ITerminalAddon, IUnicodeHandling } from 'xterm';
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import { UnicodeGraphemeProvider } from './UnicodeGraphemeProvider';
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export class UnicodeGraphemesAddon implements ITerminalAddon {
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private _provider15Graphemes?: UnicodeGraphemeProvider;
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private _provider15?: UnicodeGraphemeProvider;
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private _unicode?: IUnicodeHandling;
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private _oldVersion: string = '';
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public activate(terminal: Terminal): void {
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if (! this._provider15) {
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this._provider15 = new UnicodeGraphemeProvider(false);
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}
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if (! this._provider15Graphemes) {
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this._provider15Graphemes = new UnicodeGraphemeProvider(true);
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}
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const unicode = terminal.unicode;
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this._unicode = unicode;
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unicode.register(this._provider15);
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unicode.register(this._provider15Graphemes);
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this._oldVersion = unicode.activeVersion;
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unicode.activeVersion = '15-graphemes';
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}
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public dispose(): void {
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if (this._unicode) {
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this._unicode.activeVersion = this._oldVersion;
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}
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}
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}
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