commit | 845ce4ccd97b2ff6b39e698ce2abe7d639111ede | [log] [tgz] |
---|---|---|
author | David Bokan <bokan@chromium.org> | Thu Feb 20 15:56:03 2020 |
committer | Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> | Thu Feb 20 16:16:44 2020 |
tree | ff40c446f6a7c3d24eae867f0435765c63d1f08c | |
parent | 2f406468dfd60311931a68d53495d274687b6cd5 [diff] |
[text-fragment] Fix prefix matching edge case The current algorithm first finds a |prefix|, then checks if the immediate following text is the |search_text|. If it is it'll advance |search_start| to the end of the |search_text| so it can confirm it's followed by the |suffix| text. However, this means that if the |suffix| text doesn't match, the next iteration of the algorithm will start searching for the |prefix| at the end of the |search_text|. This is a problem if the |search_text| == |prefix| because we've now skipped the |search_text| part of the range for prefix matching. E.g. With prefix=foo search_text=foo suffix=bar we'll fail to match: foo foo foo bar Because the first iteration of the loop will use the first "foo" as the prefix, and the next iteration will use the third "foo" as the prefix; we skip the second. Bug: 1054243 Change-Id: I62b8a32f89c987e5bed8ea439ae1b7d53d12436d Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2065979 Reviewed-by: Nick Burris <nburris@chromium.org> Commit-Queue: David Bokan <bokan@chromium.org> Cr-Commit-Position: refs/heads/master@{#743108}
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