Re^2: Regex in if statement

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Re^3: Regex in if statement by 2teez (Vicar) on Mar 18, 2014 at 21:09 UTC
Hi finfan, ..Doesn't seem to work. #MO and # MO do not match. Tried the regex tester at http://www.internetofficer.com/seo-tool/regex-tester/ and it says "no match".. I know the code posted by toolic worked, I wanted to find out why it wasn't working on the website you mentioned. Tried it out and it worked with the following result: `Regular Expression Test Results Tested pattern: ^#\s*[a-z]+ Applied options: the comparison was case-insensitive String 1: #MO Result : true String 2: # MO Result : true String 3: #mo Result : true String 4: # mo Result : true String 5: # 555 Result : false` [download] May be the question, one should be asking is: How are you doing these regexp? If you tell me, I'll forget. If you show me, I'll remember. if you involve me, I'll understand. --- Author unknown to me	[reply] [d/l]
Re^3: Regex in if statement by kcott (Archbishop) on Mar 19, 2014 at 07:17 UTC
"Doesn't seem to work. #MO and # MO do not match." That sounds like you forgot the '`i`' modifier at the end of "`/^#\s[a-z]+/i`". "Tried the regex tester at http://www.internetofficer.com/seo-tool/regex-tester/ and it says "no match""* That site clearly states "We use Perl-style regular expressions." (not Perl regular expressions). It also seems to have limited functionality: it has a checkbox for the '`i`' modifier and nothing for any of the other modifiers (see `/PATTERN/msixpodualgc` in "perlop: Regexp Quote-Like Operators"). Why not try it in a real perl script. As ++toolic provided you with the complete code, it's a simple copy-paste operation. -- Ken	[reply] [d/l] [select]
Re^3: Regex in if statement by hippo (Archbishop) on Mar 18, 2014 at 19:57 UTC
Sure they do: `$ cat 1078855.pl use warnings; use strict; while (<DATA>) { print if /^#\s*[a-z]+/i; } __DATA__ #MO # MO #mo # mo # 555 $ perl 1078855.pl #MO # MO #mo # mo $` [download]	[reply] [d/l]