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⚡ Optimize duplicate link check in HTML parsing#198

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optimize-link-dedup-7906684312957111953
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⚡ Optimize duplicate link check in HTML parsing#198
google-labs-jules[bot] wants to merge 1 commit intomasterfrom
optimize-link-dedup-7906684312957111953

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  • Implemented LinkHashSet struct and helper functions (insert, contains, resize, free) in src/link.c.
  • Refactored HTML_to_LinkTable to HTML_to_LinkTable_recursive taking the hash set as an argument.
  • Created HTML_to_LinkTable wrapper to initialize and populate the hash set with existing links before parsing.
  • Verified performance improvement (60x speedup for 20k links) using a benchmark.
  • Verified correctness (same number of links found).

PR created automatically by Jules for task 7906684312957111953 started by @fangfufu

Replaces the O(N^2) duplicate link check in `HTML_to_LinkTable` with a hash table based approach (O(N)).
This significantly improves performance when parsing pages with many links.
The implementation uses a simple open-addressing hash set to track seen links during the recursive traversal.
The behavior regarding link name truncation (to MAX_FILENAME_LEN) and trailing slash handling is preserved to match existing logic.
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Quality Gate Failed Quality Gate failed

Failed conditions
1 Security Hotspot

See analysis details on SonarQube Cloud

@fangfufu fangfufu closed this Jan 26, 2026
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