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chore(math): deprecate renderMath and validateMath - #510
Deprecates renderMath() and validateMath() from comark/plugins/math (and the framework plugins/math re-exports). They will be removed in 0.9.0.
No renderer uses them: @comark/html, React, Vue, Svelte and Angular Math components all call katex.renderToString directly, and ANSI doesn't use KaTeX.
They are the only KaTeX usage in the core parser package, which otherwise keeps parsing and rendering separate.
MathConfig.throwOnError is deprecated too: the parser ignores it, it only fed renderMath. MathConfig.options stays for now.
Changes
packages/comark/src/plugins/math.ts: @deprecated JSDoc on renderMath, validateMath, MathConfig.throwOnError, linking to the docs.
docs/content/4.plugins/1.built-in/math.md: new Rendering math manually section with plain katex render/validate snippets and a removal warning; throwOnError marked deprecated.
packages/comark/test/plugins/math.test.ts: removed tests for the deprecated helpers.
Clarified that throwOnError is ignored by the math parser and only affects the deprecated renderMath() helper, which is planned for removal in version 0.9.0.
Marked renderMath() and validateMath() exports as deprecated, with removal planned for version 0.9.0.
Added examples and guidance for using KaTeX directly to render inline and display math and validate syntax.
Both helpers are unused by every renderer and will be removed in 0.9.0. MathConfig.throwOnError is deprecated as well since the parser ignores it. Docs now show how to call katex directly.
The math documentation now describes deprecated options and helpers, and shows direct KaTeX alternatives. The test suite adds bracket-parsing coverage and removes tests for the deprecated helper exports. The published package-size snapshot changes from 397k to 398k; the file count remains 158.
Changes: Math plugin documentation and test updates
Layer / File(s)
Summary
Document math API deprecations packages/comark/src/plugins/math.ts, docs/content/4.plugins/1.built-in/math.md
The documentation marks throwOnError, renderMath(), and validateMath() as deprecated, and describes direct KaTeX alternatives.
Test bracket math parsing packages/comark/test/plugins/math.test.ts, test/bundle.test.ts
The tests cover bracket parsing and fallback behavior, and no longer import renderMath() or validateMath(). The package-size snapshot changes to 398k; the file count remains 158.
comarkdown/comark#514: Changes the KaTeX rendering surface referenced by the deprecation guidance.
comarkdown/comark#515: Adds the bracket-math parser behavior covered by tests in this change.
Suggested reviewers:atinux, onmax
Merge Risk: Low · up to 85de8
The change is mergeable, but the math guide should clarify that Svelte does not export the deprecated helpers.
Pre-merge checks: 5
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Title check
The title "chore(math): deprecate renderMath and validateMath" names the main change: the PR adds @deprecated markers to renderMath() and validateMath() and to MathConfig.throwOnError, with removal pl…
Docstring Coverage
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
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The title "chore(math): deprecate renderMath and validateMath" names the main change: the PR adds @deprecated markers to renderMath() and validateMath() and to MathConfig.throwOnError, with removal planned for 0.9.0. The title is short, specific, and matches the changeset. The conventional "chore(math):" prefix fits a deprecation-only change with no runtime behavior change.
Full details: Docstring Coverage
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Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 2 functions across 3 files. (1 skipped: 1 unsupported.)
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Actionable comments posted: 1
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Inline comments:
Review comments at @docs/content/4.plugins/1.built-in/math.md:
- Line 175: Update the deprecation statement for renderMath() and validateMath()
to limit the framework-subpath claim to subpaths that actually re-export these
helpers; retain the existing deprecation and removal-version details.
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`renderMath()` and `validateMath()` exported from `comark/plugins/math` (and every framework `plugins/math` subpath) are deprecated and will be removed in `0.9.0`. Replace them with the snippet above.
@comark/svelte/plugins/math exports only the default plugin, MathConfig, and Math. It does not export renderMath() or validateMath(). A Svelte user who imports either helper from this subpath receives a missing-export error.
Suggested fix
--- "a/docs/content/4.plugins/1.built-in/math.md"+++ "b/docs/content/4.plugins/1.built-in/math.md"@@ -172,7 +172,7 @@
```
::warning
-`renderMath()` and `validateMath()` exported from `comark/plugins/math` (and every framework `plugins/math` subpath) are deprecated and will be removed in `0.9.0`. Replace them with the snippet above.+`renderMath()` and `validateMath()` exported from `comark/plugins/math` and framework `plugins/math` subpaths that re-export them are deprecated and will be removed in `0.9.0`. Replace them with the snippet above.
::
---
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Suggested change
`renderMath()` and `validateMath()` exported from `comark/plugins/math`(and every framework `plugins/math`subpath) are deprecated and will be removed in `0.9.0`. Replace them with the snippet above.
`renderMath()` and `validateMath()` exported from `comark/plugins/math` and framework `plugins/math`subpaths that re-export them are deprecated and will be removed in `0.9.0`. Replace them with the snippet above.
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Review comment at @docs/content/4.plugins/1.built-in/math.md at line 175:
Update the deprecation statement for renderMath() and validateMath() to limit
the framework-subpath claim to subpaths that actually re-export these helpers;
retain the existing deprecation and removal-version details.
After applying the fix, consider running `coderabbit review --agent` for local
review. Visit https://docs.coderabbit.ai/cli?utm_source=ghpr
Retain focused tests for the still-public math helpers.
renderMath and validateMath remain public until the planned 0.9.0 removal. Removing their tests eliminates the only assertions for successful rendering and validation failure. The remaining parser test does not detect regressions in these helpers. Re-add the focused tests.
Suggested fix
import { describe, expect, it } from 'vitest'
import { parseMarkdown } from '../../src/parse'
-import math from '../../src/plugins/math'+import math, { renderMath, validateMath } from '../../src/plugins/math'
describe('math plugin', () => {
it('parses inline and display math without loading katex', async () => {
const { nodes } = await parseMarkdown('Inline $x^2$ and display $$E = mc^2$$', {
plugins: [math()],
})
expect(JSON.stringify(nodes)).toContain('math')
})
++ it('renders math lazily via katex', async () => {+ await expect(renderMath('E = mc^2', false)).resolves.toContain('katex')+ })++ it('validates math lazily via katex', async () => {+ await expect(validateMath('E = mc^2')).resolves.toBe(true)+ await expect(validateMath('\\invalid')).resolves.toBe(false)+ })
})
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Review comment at @packages/comark/test/plugins/math.test.ts around lines 1 -
13:
The math plugin test only covers parsing and no longer asserts the public
helpers’ behavior. Update the “math plugin” test suite to import renderMath and
validateMath, then add focused tests for successful rendering and validation,
including that invalid input returns false.
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Nitpick comments:
Review comments at @packages/comark/test/plugins/math.test.ts:
- Around line 1-13: The math plugin test only covers parsing and no longer
asserts the public helpers’ behavior. Update the “math plugin” test suite to
import renderMath and validateMath, then add focused tests for successful
rendering and validation, including that invalid input returns false.
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The existing suite beginning at Line 96 has the same 11 cases and expectations. Vitest now runs every case twice without adding coverage. Keep one copy. (raw.githubusercontent.com)
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Review comment at @packages/comark/test/plugins/math.test.ts at line 15:
Remove one of the duplicate bracket-math suites in the math plugin tests,
keeping the other suite and its 11 cases and expectations unchanged.
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Review comments at @packages/comark/test/plugins/math.test.ts:
- Line 15: Remove one of the duplicate bracket-math suites in the math plugin
tests, keeping the other suite and its 11 cases and expectations unchanged.
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Summary
Deprecates
renderMath()andvalidateMath()fromcomark/plugins/math(and the frameworkplugins/mathre-exports). They will be removed in 0.9.0.@comark/html, React, Vue, Svelte and AngularMathcomponents all callkatex.renderToStringdirectly, and ANSI doesn't use KaTeX.MathConfig.throwOnErroris deprecated too: the parser ignores it, it only fedrenderMath.MathConfig.optionsstays for now.Changes
packages/comark/src/plugins/math.ts:@deprecatedJSDoc onrenderMath,validateMath,MathConfig.throwOnError, linking to the docs.docs/content/4.plugins/1.built-in/math.md: new Rendering math manually section with plainkatexrender/validate snippets and a removal warning;throwOnErrormarked deprecated.packages/comark/test/plugins/math.test.ts: removed tests for the deprecated helpers.Migration
No runtime behavior change.
Summary by CodeRabbit
throwOnErroris ignored by the math parser and only affects the deprecatedrenderMath()helper, which is planned for removal in version 0.9.0.renderMath()andvalidateMath()exports as deprecated, with removal planned for version 0.9.0.