Merge pull request #4997 from Tyriar/4969

Introduce opt-in glyph scaling to achieve GB18030 compliance

typings/xterm-headless.d.ts

@@ -140,6 +140,17 @@ declare module '@xterm/headless' {
      */
     minimumContrastRatio?: number;
 
+    /**
+     * Whether to rescale glyphs horizontally that are a single cell wide but
+     * have glyphs that would overlap following cell(s). This typically happens
+     * for ambiguous width characters (eg. the roman numeral characters U+2160+)
+     * which aren't featured in monospace fonts. Emoji glyphs are never
+     * rescaled. This is an important feature for achieving GB18030 compliance.
+     *
+     * Note that this doesn't work with the DOM renderer. The default is false.
+     */
+    rescaleOverlappingGlyphs?: boolean;
+
     /**
      * Whether to select the word under the cursor on right click, this is
      * standard behavior in a lot of macOS applications.

typings/xterm.d.ts

@@ -209,6 +209,17 @@ declare module '@xterm/xterm' {
      */
     minimumContrastRatio?: number;
 
+    /**
+     * Whether to rescale glyphs horizontally that are a single cell wide but
+     * have glyphs that would overlap following cell(s). This typically happens
+     * for ambiguous width characters (eg. the roman numeral characters U+2160+)
+     * which aren't featured in monospace fonts. Emoji glyphs are never
+     * rescaled. This is an important feature for achieving GB18030 compliance.
+     *
+     * Note that this doesn't work with the DOM renderer. The default is false.
+     */
+    rescaleOverlappingGlyphs?: boolean;
+
     /**
      * Whether to select the word under the cursor on right click, this is
      * standard behavior in a lot of macOS applications.