Jasmine
Administrator
Mar 15, 2001, 6:01 AM
Post #1 of 1
(28976 views)
|
|
How can I quote a variable to use in a regexp?
|
Can't Post
|
|
How can I quote a variable to use in a regexp?
The Perl parser will expand $variable and @variable references in regular expressions unless the delimiter is a single quote. Remember, too, that the right-hand side of a s/// substitution is considered a double-quoted string (see the perlop manpage for more details). Remember also that any regexp special characters will be acted on unless you precede the substitution with \Q. Here's an example:
$string = "to die?";
$lhs = "die?";
$rhs = "sleep no more";
$string =~ s/\Q$lhs/$rhs/;
# $string is now "to sleep no more"
|
MAIN
SEARCH
WHO'S 
LOG 