On 5/11/22 11:09, Reuben Thomas wrote:
Sorry, I don't follow. The concrete example given is: \Sw matches any character that is not word-constituent. That seems to be [^[:alnum:]]?
In glibc regex, \Sw matches a nonspace followed by a 'w'. That is, it is equivalent to [^[:space:]]w and it has a different meaning from the decommissioned GNU regex meaning.
I'm assuming that the goal of gnulib/doc/regex.texi is to document the regular expression syntax implemented by glibc, grep, etc. Does that match your assumption.
