Commit Graph

2 Commits

Author SHA1 Message Date
Nikita Nemkin
5d039f3be3 regex: Match ^ at most once in repeated searches
When doing successive matches, track the input start and current search
start positions separately to prevent the `^` anchor from matching in
the middle of the string.  Add policy CMP0186 to provide compatibility.

Issue: #26629
Fixes: #16899
2025-02-13 20:00:02 +05:00
Ben Boeckel
b794164143 cmStringCommand: clear intermediate matches
When `string(REGEX REPLACE)` or `string(REGEX MATCHALL)` loop
internally, they store their matches, but they do not clear the previous
match from an earlier iteration. This can leave the contents of
`CMAKE_MATCH_<N>` with bogus values for later matches in the string if
they have groups which earlier matched a non-empty string, but now match
an empty string.

Fixes #17079.
2017-07-21 09:09:56 -04:00