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⚡ optimize date regex in bibtex-compatibility.py#18

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k4rtik merged 1 commit intomainfrom
perf-optimize-date-regex-14175507556599838591
Apr 3, 2026
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⚡ optimize date regex in bibtex-compatibility.py#18
k4rtik merged 1 commit intomainfrom
perf-optimize-date-regex-14175507556599838591

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@k4rtik k4rtik commented Apr 3, 2026

The optimization improves the performance of bibtex-compatibility.py by short-circuiting the date regex search with a faster string membership test ("date" in line).

Key results:

  • Baseline: 0.050081s per run (averaged over 1000 runs).
  • Optimized: 0.045523s per run (averaged over 1000 runs).
  • Improvement: ~9% faster.

This change is safe and preserves the original logic because any line matching the date_re pattern must necessarily contain the literal string "date". I have verified the correctness by running the script on biblatex.bib and confirming that the expected year = entries are still correctly generated in bibtex.bib.


PR created automatically by Jules for task 14175507556599838591 started by @k4rtik

Add a fast string membership check 'date' in line before the more expensive
regular expression search for the date field. This avoids regex engine overhead
for the majority of lines in a BibTeX file.

Measured improvement: Average execution time per run decreased from 0.0501s to
0.0455s (approx. 9% faster) on a 3.3k line BibTeX file.

Co-authored-by: k4rtik <374340+k4rtik@users.noreply.github.com>
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@k4rtik k4rtik marked this pull request as ready for review April 3, 2026 20:12
@k4rtik k4rtik merged commit 0e5dc39 into main Apr 3, 2026
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