fix(parse/html/vue): don't treat : as special token outside of vue directives

[dyc3]

Summary

This makes sure we only consider colons to be special if we know we are lexing a vue directive, in vue files.

partial fix for #9161

Test Plan

added snapshots, removed some invalid svelte syntax from a vue test

Docs

[changeset-bot]

🦋 Changeset detected

Latest commit: cc5a919

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 13 packages

Name	Type
@biomejs/biome	Patch
@biomejs/cli-win32-x64	Patch
@biomejs/cli-win32-arm64	Patch
@biomejs/cli-darwin-x64	Patch
@biomejs/cli-darwin-arm64	Patch
@biomejs/cli-linux-x64	Patch
@biomejs/cli-linux-arm64	Patch
@biomejs/cli-linux-x64-musl	Patch
@biomejs/cli-linux-arm64-musl	Patch
@biomejs/wasm-web	Patch
@biomejs/wasm-bundler	Patch
@biomejs/wasm-nodejs	Patch
@biomejs/backend-jsonrpc	Patch

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[dyc3]

• feat(lint/vue): automatically ignore noAssignInExpressions for vue v-on directives #9164
• fix(parse/html/vue): don't treat : as special token outside of vue directives #9162 👈 (View in Graphite)
• main

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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Walkthrough

This PR fixes Vue colon attribute parsing in the HTML parser by preventing colons from being consumed as part of identifiers when Vue directive prefixes (v-) are detected. The lexer now treats colon-prefixed attributes like xlink:href and xmlns:xlink as single attributes instead of splitting them into separate tokens. Changes include a new helper function to detect Vue directive prefixes, modifications to identifier consumption logic, and test cases validating correct parsing of namespaced and Attributify-style attributes.

Possibly related PRs

• fix(parse/html/vue): fix lexing of event handlers with : in them #8219: Modifies Vue identifier lexing in the same file to handle ':' within attribute/event names
• fix(parse/html/vue): reject whitespace before vue directive arguments #8178: Addresses similar Vue colon/directive parsing edge cases around token separation

Suggested labels

D-Vue

Suggested reviewers

• ematipico
• chansuke

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarises the main change: preventing colons from being treated as special tokens outside Vue directives in Vue file parsing.
Description check	✅ Passed	The description clearly explains the motivation and what problem the PR solves—treating colons as special only in Vue directives, not universally.

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• Commit unit tests in branch dyc3/parse-attrs-w-colon-in-vue

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[codspeed-hq]

Merging this PR will not alter performance

✅ 4 untouched benchmarks
🆕 60 new benchmarks
⏩ 152 skipped benchmarks¹

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
🆕	synthetic/astro-components.astro[format]	N/A	4.5 ms	N/A
🆕	synthetic/vue-directives.vue[format]	N/A	2.5 ms	N/A
🆕	real/wikipedia-fr-Guerre_de_Canudos.html[format]	N/A	1.4 s	N/A
🆕	real/wikipedia-Unix.html[format]	N/A	416 ms	N/A
🆕	synthetic/comments.html[format]	N/A	3 ms	N/A
🆕	synthetic/attribute-heavy.html[format]	N/A	3.6 ms	N/A
🆕	synthetic/astro-expressions.astro[format]	N/A	3.5 ms	N/A
🆕	synthetic/vue-dynamic-args.vue[format]	N/A	2.5 ms	N/A
🆕	synthetic/svelte-expressions.svelte[format]	N/A	2.1 ms	N/A
🆕	synthetic/svelte-control-flow.svelte[format]	N/A	1.7 ms	N/A
🆕	synthetic/svelte-directives.svelte[format]	N/A	1.8 ms	N/A
🆕	synthetic/tables.html[format]	N/A	10.2 ms	N/A
🆕	real/wikipedia-JavaScript.html[format]	N/A	498.8 ms	N/A
🆕	synthetic/mixed-content.html[format]	N/A	6.9 ms	N/A
🆕	synthetic/svelte-snippets.svelte[format]	N/A	3.4 ms	N/A
🆕	synthetic/long-attribute-values.html[format]	N/A	1.3 ms	N/A
🆕	synthetic/vue-expressions.vue[format]	N/A	2 ms	N/A
🆕	synthetic/high-depth.html[format]	N/A	2 ms	N/A
🆕	synthetic/wide-siblings.html[format]	N/A	8.3 ms	N/A
🆕	synthetic/void-elements.html[format]	N/A	5.8 ms	N/A
...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

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_{Comparing dyc3/parse-attrs-w-colon-in-vue (cc5a919) with main (a794cd9)}

Footnotes

1. 152 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[dyc3]

Any idea why codspeed still thinks the benchmarks are new? @ematipico