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https://github.com/NousResearch/hermes-agent.git
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f8becbfbea
Adds a minimal hand-rolled highlighter for ts/js/jsx/tsx, py, sh/bash, go, rust, json, yaml, sql. Recognizes whole-line comments, single/double/backtick strings, numbers, and per-language keyword sets. Unknown langs fall through to the current plain rendering; the existing diff-specific colorization is preserved. Closes the §8 "Markdown syntax highlighting is missing (only diff gets colored)" finding from the TUI v2 audit without pulling in a highlighter library.
46 lines
1.4 KiB
TypeScript
46 lines
1.4 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import { highlightLine, isHighlightable } from '../lib/syntax.js'
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import { DEFAULT_THEME } from '../theme.js'
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const t = DEFAULT_THEME
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describe('syntax highlighter', () => {
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it('recognizes supported langs and aliases', () => {
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expect(isHighlightable('ts')).toBe(true)
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expect(isHighlightable('js')).toBe(true)
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expect(isHighlightable('python')).toBe(true)
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expect(isHighlightable('rs')).toBe(true)
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expect(isHighlightable('bash')).toBe(true)
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expect(isHighlightable('whatever')).toBe(false)
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expect(isHighlightable('')).toBe(false)
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})
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it('paints a whole-line comment dim', () => {
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const tokens = highlightLine('// hello', 'ts', t)
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expect(tokens).toEqual([[t.color.dim, '// hello']])
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})
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it('paints keywords, strings, and numbers in a ts line', () => {
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const tokens = highlightLine(`const x = 'hi' + 42`, 'ts', t)
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const colors = tokens.map(tok => tok[0])
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expect(colors).toContain(t.color.bronze) // const
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expect(colors).toContain(t.color.amber) // 'hi'
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expect(colors).toContain(t.color.cornsilk) // 42
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})
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it('falls through unchanged for unknown langs', () => {
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const tokens = highlightLine(`const x = 1`, 'zzz', t)
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expect(tokens).toEqual([['', 'const x = 1']])
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})
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it('treats `#` as a python comment, not a selector', () => {
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const tokens = highlightLine('# comment', 'py', t)
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expect(tokens).toEqual([[t.color.dim, '# comment']])
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})
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})
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