feat(tui): add syntax highlighting for code blocks #1200
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Add syntax highlighting to markdown code blocks in the TUI using cli-highlight with a VS Code Dark-inspired color theme. Features: - 191 languages supported via highlight.js - Auto-detection fallback for unknown languages - Graceful fallback to plain styling on errors - VS Code Dark-inspired color palette Colors: - Purple: keywords (const, function, if, etc.) - Teal: built-ins (console, Math, print, etc.) - Orange: strings - Green: numbers, comments - Yellow: function names - Blue: literals (true, false, null) - Red: diff deletions - Light blue: variables, parameters 🤖 AI-assisted (Claude) - fully tested locally
Tests now verify structure and content preservation rather than checking for specific ANSI escape codes, which may not be present in CI environments without TTY/color support.
steipete
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Jan 19, 2026
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Landed via temp rebase onto main. Thanks @vignesh07! |
steipete
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rsneh
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Summary
Add syntax highlighting to markdown code blocks in the TUI using
cli-highlightwith a VS Code Dark-inspired color theme.Features
Color Scheme
const,function,ifconsole,Math,print"hello"42,3.14// commentgreet()true,false,nullChanges
cli-highlightdependencysyntaxThemeandhighlightCodefunction totheme.tshighlightCodeinmarkdownThemeTesting
Note
This uses the existing dark theme only. Light mode support would require a broader TUI theming feature.
🤖 AI-assisted (Claude) - fully tested locally