Re^5: Constructing a hash - why isn't my regex matching anything

why is $key and $match not matching anything?

Because there is nothing to match. An empty line, all whitespace line, is empty :) It has no dots. It has no dashes, semicolons, slashes. Your regex won't match. :D

what change should I do in regex to match them?

Allow for the possibility of failure,ie test for success, just like this guy shows

Comment on Re^5: Constructing a hash - why isn't my regex matching anything

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Re^6: Constructing a hash - why isn't my regex matching anything by perl_mystery (Beadle) on Dec 19, 2010 at 09:23 UTC
For the input line shown below,the regex is still no matching,I couldnt find anything wrong?Need your input `INPUT LINE:\root\edit\perl\scripts\scripths\sec\inc\script_auth_pap.h- +113115;perforcePLF.txt;//programfiles/documents/data/lookup/script_au +th_pap.h - label_scriptHS_source.01.16.00 : 5 if (my ($key, $value) = $line =~ /\.\\(.+?)-\d+;.+?;(.+?)\s-\s/) { }` [download]	[reply] [d/l]
Re^7: Constructing a hash - why isn't my regex matching anything by Anonymous Monk on Dec 19, 2010 at 09:37 UTC
Well, `use re 'debug';` and YAPE::Regex::Explain and try to figure out why :) My guess, trial and error involves a lot of error ZING :D Seriously, this (unspecified format, formatted) input is looking more and more like CSV where the separator is a semi-colon, THUS, I would use Text::CSV//Text::xSV and be finished (hopefully). PS, FWIW, I'm fatigued, no more posts from me :)	[reply] [d/l]
Re^7: Constructing a hash - why isn't my regex matching anything by Anonymous Monk on Dec 19, 2010 at 10:24 UTC
I don't see a dot followed by a backslash in that string.	[reply]