is there a regular expression to escape all non alphanumeric characters in a string?
at the moment, i'm using s/\W//g to delete them, and s/\"/\\\"/g for individual characters that i need to escape, but it all looks a bit pete tong.
alex
(couldn't find a regex-dedicated group. is there one?)
Sat, 16 Jul 2005 19:38:51 GMT
Tad McClell #2 / 4
regex to escape special characters
Quote:
> is there a regular expression to escape all non alphanumeric characters in a > string?
See the description for \Q in the "Quote and Quote-like Operators" section of:
perldoc perlop
and also:
perldoc -f quotemeta
Or, just do it all yourself (untested):
s/(\W)/\\$1/g;
-- Tad McClellan SGML consulting
Fort Worth, Texas
Sat, 16 Jul 2005 20:07:33 GMT
h #3 / 4
regex to escape special characters
Quote:
> is there a regular expression to escape all non alphanumeric characters in a > string?
> at the moment, i'm using s/\W//g to delete them, and s/\"/\\\"/g for > individual characters that i need to escape, but it all looks a bit pete > tong.
I am not QUITE sure what your problem is, maybe
s/(\W)/\\$1/g
(But mind \n !!!) There are a lot of things you can wrtite in the substitution part of s///e when using the "execute" option.
Quote:
> (couldn't find a regex-dedicated group. is there one?)
There also are some books about Regex even one especially on Perl (look at Amazon e.g.)
Kindly Mike
Sat, 16 Jul 2005 20:14:18 GMT
Alex Bank #4 / 4
regex to escape special characters
Quote:
> Or, just do it all yourself (untested):
> s/(\W)/\\$1/g;
Genius - that works a treat. Thanks Tad. I had tried a similar pattern, but omitted the brackets around the first \W.
regex to escape special characters