help in understanding a regex

[Anonymous Monk]

 

#!/usr/local/bin/perl -w
$string = "/dir1/dir8/dir2";
$string =~ m|([^/]+)$|;
print $1;

if i change the line of code as $string =~ m/([^/]+)$/ it doesent work.

[roboticus]

Yeah, you'd have to change it to m/([^\/]+)$/ to work. The original used vertical bars so they didn't have to escape the slash in the brackets.

...roboticus

When your only tool is a hammer, all problems look like your thumb.

[2teez]

with $string =~ m/[^/]+)$/; using strict and warnings, you would get unmatched error [ in regex ...
Please note the usage of the "/" as the delimiter,
which you have to "escape" to use within the m// like so: $string =~ m/[^\/]+)$/;
Please check the subtitle m/PATTERN/msixpodualgc under Regexp-Quote-Like-Operators