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diff: handle "matching" regions of different lengths, minor cleanup #4522

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merged 3 commits into from
Oct 1, 2024

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@yuja yuja commented Sep 23, 2024

Checklist

If applicable:

  • I have updated CHANGELOG.md
  • I have updated the documentation (README.md, docs/, demos/)
  • I have updated the config schema (cli/src/config-schema.json)
  • I have added tests to cover my changes

lib/src/diff.rs Outdated Show resolved Hide resolved
@yuja yuja marked this pull request as draft September 24, 2024 02:47
…ield

I'll replace offsets with absolute [Range, ..] to support unchanged regions of
different lengths. All fields in UnchangedRange will be ranges.
…lengths

We have two options to achieve "diff --ignore-*-space":
 a. preprocess contents to be diffed, then translate hunk ranges back
 b. add hooks to customize eq and hash functions
I originally thought (a) would be easier, but actually, there aren't many
changes needed to implement (b). And (b) should have a fewer logic errors.

This patch removes assumption that each unchanged region has the same content
length. It won't be true if whitespace characters are ignored.
@yuja yuja marked this pull request as ready for review September 30, 2024 21:43
@yuja yuja merged commit 4f8ae69 into martinvonz:main Oct 1, 2024
18 checks passed
@yuja yuja deleted the push-ponuxwwuoqkv branch October 1, 2024 12:24
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2 participants