path: root/src/malloc
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authorSzabolcs Nagy <>2016-11-24 01:44:49 +0100
committerRich Felker <>2016-12-16 23:26:29 -0500
commit7a4c25d78030b3a43ed5c8dd1a456f73cb990f44 (patch)
treee4855beab38f5f84fd4b5d35f88748bdae78b454 /src/malloc
parentadfe682eb0d77c6afc751f5e407d9da39623c24e (diff)
handle ^ and $ in BRE subexpression start and end as anchors
In BRE, ^ is an anchor at the beginning of an expression, optionally it may be an anchor at the beginning of a subexpression and must be treated as a literal otherwise. Previously musl treated ^ in subexpressions as literal, but at least glibc and gnu sed treats it as an anchor and that's the more useful behaviour: it can always be escaped to get back the literal meaning. Same for $ at the end of a subexpression. Portable BRE should not rely on this, but there are sed commands in build scripts which do. This changes the meaning of the BREs: \(^a\) \(a\|^b\) \(a$\) \(a$\|b\)
Diffstat (limited to 'src/malloc')
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