security/dos-regex-whitespace

[codingChewie]

Summary by CodeRabbit

• Refactor
  • Improved internal whitespace handling for block-level elements, enhancing code reliability with no user-facing changes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 59b6b332-7656-4a0d-b01e-533d092f82d3

📥 Commits

Reviewing files that changed from the base of the PR and between e7552ca and 70db62f.

📒 Files selected for processing (1)

• src/misc.ts

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📝 Walkthrough

Walkthrough

A single regex pattern replacement in trimElementWhitespace: the function now uses a lookahead-based regex to remove trailing whitespace immediately before closing block-level tags, replacing a capture-group approach that re-emitted the closing tag.

Changes

Whitespace Trimming

Layer / File(s)	Summary
Whitespace trimming regex optimization src/misc.ts	trimElementWhitespace replaces capture-group regex with lookahead pattern to trim trailing whitespace before closing tags (h1–h6, li, td, th).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

A lookahead hops with grace so fine,
No capture groups to redefine—
Whitespace flees before the tag,
The regex hops without a drag! 🐰✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Title check	❓ Inconclusive	The title 'security/dos-regex-whitespace' references a real aspect of the change—fixing a regex-based denial-of-service vulnerability in whitespace trimming—but is formatted as a branch name rather than a clear summary of the main change.	Revise the title to be a clear, descriptive summary of the main change, such as 'Fix regex DoS vulnerability in trimElementWhitespace' or 'Improve whitespace trimming regex performance'

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch security/dos-regex-whitespace

Warning

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[github-actions]

Test Report

Tests — ✅ Passed

Metric	Value
Pass rate	100.00% (min 85%)
Passed	207
Failed	0
Skipped/Pending	0
Todo	0
Runtime error suites	0

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud