Commit a8b5bbef authored by Dave Love's avatar Dave Love
Browse files

(Regexp Backslash): categories.

parent a57092e8
......@@ -585,6 +585,15 @@ the characters that stand for them.
@item \S@var{code}
@cindex @samp{\S} in regexp
matches any character whose syntax is not @var{code}.
@item \c@var{c}
matches any character whose category is @var{c}. Here @var{c} is a
character that represents a category: thus, @samp{c} for Chinese
characters or @samp{g} for Greek characters in the standard category
@item \C@var{c}
matches any character whose category is not @var{c}.
@end table
The following regular expression constructs match the empty string---that is,
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