commit: 0b00ff1312e734ae453a9f61f504bdc400b2b2df Author: Sam James <sam <AT> gentoo <DOT> org> AuthorDate: Sat Mar 20 14:48:24 2021 +0000 Commit: Ulrich Müller <ulm <AT> gentoo <DOT> org> CommitDate: Mon Mar 29 20:41:37 2021 +0000 URL: https://gitweb.gentoo.org/proj/devmanual.git/commit/?id=0b00ff13
tools-reference/sed: emphasise need for delimiter care Bug: https://bugs.gentoo.org/685160 Signed-off-by: Sam James <sam <AT> gentoo.org> Signed-off-by: Ulrich Müller <ulm <AT> gentoo.org> tools-reference/sed/text.xml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tools-reference/sed/text.xml b/tools-reference/sed/text.xml index b971946..f116eac 100644 --- a/tools-reference/sed/text.xml +++ b/tools-reference/sed/text.xml @@ -132,7 +132,12 @@ The above will replace <c>irksome texting</c> with <p> If the pattern or the replacement string contains the forward slash character, it is usually easiest to use a different delimiter. Most punctuation characters -are allowed, although backslash and any form of brackets should be avoided. +are allowed, although backslash and any form of brackets should be avoided. You +should choose your delimiter <b>with care</b> to ensure it cannot appear in any +strings involved in the subject/replacement. For example, using <c>sed</c> with +CFLAGS is hazardous because it is user-supplied data (so may contain any +character), but one should in particular avoid e.g. +<uri link="https://bugs.gentoo.org/685160";>the colon</uri> here. </p> <codesample lang="ebuild">
