[vim/vim] matchfuzzypos() returns garbage positions for long candidates (PR #20435)

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glepnir

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Jun 6, 2026, 3:46:32 AM (3 days ago) Jun 6

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Problem: a needle that only matches past char 1024 gives an INT_MIN + 1 score
with unset positions, e.g. matchfuzzypos([repeat('a',1024)..'z'], 'az').
Solution: drop the candidate when match_positions() returns SCORE_MIN.

You can view, comment on, or merge this pull request online at:

https://github.com/vim/vim/pull/20435

Commit Summary

68eef4f matchfuzzypos() returns garbage positions for long candidates

File Changes

(2 files)

M src/fuzzy.c (8)
M src/testdir/test_matchfuzzy.vim (28)

Patch Links:

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Christian Brabandt

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Jun 7, 2026, 2:40:59 PM (2 days ago) Jun 7

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chrisbra left a comment (vim/vim#20435)

Thanks, the test actually should use CheckFeature multi_byte but that is now always included, so we can skip it