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authorDominique Martinet2021-12-21 21:52:29 +0900
committerDenys Vlasenko2021-12-25 04:20:28 +0100
commit4fe954c14851d2f913c41c581cbe49300b0984e4 (patch)
treefc3efe9f530d28ba4ab7092a9d966c192ac49e59 /shell/hush_test/hush-quoting/dollar_altvalue9.tests
parenta05a3d5932b5002d0513adfa817b931dcc1686c0 (diff)
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sed: do not ignore 'g' modifier when match starts with ^
It is perfectly valid to start a regex with ^ and have other patterns with \| that can match more than once, e.g. the following example should print ca, as illustrated with gnu sed: $ echo 'abca' | sed -e 's/^a\|b//g' ca busybox before patch: $ echo 'abca' | busybox sed -e 's/^a\|b//g' bca busybox after patch: $ echo 'abca' | ./busybox sed -e 's/^a\|b//g' ca regcomp handles ^ perfectly well as illustrated with the second 'a' that did not match in the example, we ca leave the non-repeating to it if appropriate. The check had been added before using regcomp and was required at the time (f36635cec6da) but no longer makes sense now. (tested with glibc and musl libc) function old new delta add_cmd 1189 1176 -13 Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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