[Kikobeats]

Adds elements(html, tagNames) so simple-wappalyzer can read meta + script with the same HTML parsing rules (foreign content, integration points, breakout, template, noscript) instead of its own htmlparser2 loop. That loop regresses on htmlparser2 v12.

const { elements } = require('html-scripts')
elements('<meta name="generator" content="WordPress 6.4"><script async src="/app.js"></script>', ['meta', 'script'])
// { meta: [ { name: 'generator', content: 'WordPress 6.4' } ], script: [ { async: '', src: '/app.js' } ] }

What changed

• src/index.js: the parser body is now extract(html, tagNames, setAttribute). The default export calls it with ['script'] and the existing value mapping (booleans, last value wins), so its output is unchanged. elements uses DOM semantics: string values, first value wins, Object.hasOwn so constructor/toString attributes work.
• test/elements.js: 8 tests (document order, empty lists, raw values, first-wins, prototype-named attributes, template/noscript/raw text, meta breaking out of svg, svg markup).
• README: an "Other tags" section. I ran the example and the output matches.

How it was tested

• npm test: 51 tests, 100% coverage. The existing 43 pass unchanged.
• Differential fuzz against parse5, meta + script, 50k inputs × 3 seeds: simple-wappalyzer's current getElements has ~10,750 spec mismatches, elements has 17-29. The default export's fuzz numbers are identical to master.
• Interleaved A/B benchmark of the default export against master: +0.2% to +1.5% (about 1 ns per tag for the Set lookup that replaced name === 'script'). Trying a Map lookup that reuses the list didn't help, so I kept the simpler version.

Minor release (new export, no behaviour change). simple-wappalyzer's PR follows once this is published.

Note: the pre-commit hook (nano-staged) races when .js and .md files are staged together (both task groups run git add at once, index.lock exists), so the docs are a separate commit.

🤖 Generated with Claude Code

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Note

Medium Risk
Shared parsing refactor touches HTML tokenization and namespace edge cases, though the default script export is intended to stay compatible; attribute handling changes include prototype-pollution hardening.

Overview
Adds elements(html, tagNames, options?), which returns a map of tag names to arrays of attribute objects in document order, using the same foreign-content, integration-point, template, and noscript rules as the existing script parser.

The default export is refactored through shared extract() and should behave the same: still only script tags, boolean-ish attributes, and last-wins on duplicates. elements uses DOM-style string values, first-wins on repeated attributes, lowercase SVG tag matching, and optional { scripting: false } so <noscript> inner markup is parsed. Attribute assignment goes through defineOwn so names like __proto__ stay safe on both APIs.

README documents the new API; test/elements.js and a default-export __proto__ test cover the new behavior.

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Summary by CodeRabbit

• New Features
  • Added an elements export to collect attributes from multiple tag types, with results in document order.
  • Supports parsing noscript content as markup when scripting is disabled. By default, template content, noscript, and raw-text elements are excluded.
• Bug Fixes
  • Attribute names such as __proto__ are retained safely in results. For elements, repeated attributes keep the first value; script attributes keep the last.
• Documentation
  • Documented tag-name casing, parsing behavior, and the scripting option.

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• src/index.js
• test/elements.js

Walkthrough

The default export continues to extract script attributes. A new elements export collects attributes for requested tag names. Shared extraction handles duplicate attributes and parser contexts, including template content, foreign content, and noscript behavior.

Changes: Multi-tag extraction

Layer / File(s)	Summary
Shared extraction and elements API src/index.js, test/elements.js, test/index.js, README.md	Shared extraction supports requested tag names. The new elements export returns arrays of attribute objects, validates that tagNames is an array, and uses the first value for repeated attributes. The default export retains last-value behavior. Tests cover attribute values and prototype-safe handling, and the README documents the API.
Parser-context and noscript handling src/index.js, test/elements.js	Matching tags inside HTML templates are not collected. noscript content is skipped when scripting is enabled outside foreign content. Tests cover template, raw-text, SVG, and MathML parsing contexts.

Priority: Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Caller
  participant elements
  participant extract
  Caller->>elements: Pass HTML, tag names, and options
  elements->>extract: Request shared extraction for the tag names
  extract-->>elements: Return arrays of attribute objects
  elements-->>Caller: Return extraction result

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Possibly related PRs

• Kikobeats/html-scripts#22: Introduces namespace-aware parser behavior that this change uses for tag extraction across HTML, SVG, and MathML contexts.
• Kikobeats/html-scripts#18: Replaces the parser used by this change’s shared script-attribute extraction implementation.

Merge Risk: Low · previous review ac616

Some requested SVG elements are silently omitted. Correct tag matching before relying on those results.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly identifies the main change: adding the elements(html, tagNames) API to read attributes from selected tags.
Docstring Coverage		No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No eligible functions found in the changed files. Skipping docstring coverage check. 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 0 functions across 3 files. (1 skipped: 1 unsupported.)

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[github-actions]

html-scripts

Details

Benchmark suite	Current: 7fb6f5e	Previous: f6c89c9	Ratio
getScripts 1MB page	89.9 ms (87.1-91.3)	87.4 ms (86.5-89.1)	1.03
getScripts 20KB page	120.4 ms (115-121.4)	114.8 ms (113.4-117)	1.05

This comment was automatically generated by workflow using github-action-benchmark.

[Kikobeats]

Added { scripting: false } (f2afe2c, fd24f80): <noscript> content is parsed as markup, as in a browser with JavaScript off. It matches parse5 scriptingEnabled: false. simple-wappalyzer needs it because test/html.js asserts <meta> inside <noscript> is detected. 52 tests, 100% coverage.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Actionable comments posted: 1

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

Prompt to fix review comments

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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @src/index.js:
- Line 190: Normalize the parser callback name for target selection and result
lookup so lowercase requests match SVG-adjusted names such as linearGradient and
foreignObject; retain the original name for namespace handling in the
outsideTemplate callback.

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Commits

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Files selected for processing: 4

• README.md
• src/index.js
• test/elements.js
• test/index.js

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