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