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Add some indices for regexp character classes

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* doc/lispref/searching.texi (Char Classes): Add some concept
index entries for a handful of character classes (bug#32430).
This commit is contained in:
Lars Ingebrigtsen 2019-07-13 04:55:52 +02:00
parent 4b73c0cde6
commit 3e2e2aa450
1 changed files with 4 additions and 0 deletions
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doc/lispref/searching.texi
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@ -577,6 +577,10 @@ an unquoted @samp{[} is special again and a @samp{]} not.
@node Char Classes
@subsubsection Character Classes
@cindex character classes in regexp
@cindex ascii character class, regexp
@cindex alnum character class, regexp
@cindex alpha character class, regexp
@cindex xdigit character class, regexp
Here is a table of the classes you can use in a character alternative,
and what they mean: