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Topic: Perl regex problem (Read 1951 times)
jporkkahtc
Senior Community Member
Posts: 2620
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Text
Perl regex problem
«
on:
May 16, 2018, 06:59:14 PM »
I found regex pat1 doesn't match case 2, but does match case 1.
pat2 matches case2 but not case3.
https://regex101.com
shows it should match both.
Python re also matches.
Code:
[Select]
pat1: "([0-9]*?)(18)"
pat2" "([0-9]{3,4})(18)"
case1: "4918 116"
case2: "514918 116"
case3: "51918 116"
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rgloden
Senior Community Member
Posts: 169
Hero Points: 5
Re: Perl regex problem
«
Reply #1 on:
June 01, 2018, 04:19:10 PM »
pat1 should also have matched case3.
As a learning experience, I tried this in the RegEx Eval tool.
Other patterns which seem to fail to return the expected:
([0-9]{1,5})(18)
([0-9]{2,5})(18)
([0-9]{1,4})(18)
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Clark
SlickEdit Team Member
Senior Community Member
Posts: 6823
Hero Points: 526
Re: Perl regex problem
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Reply #2 on:
June 01, 2018, 04:50:46 PM »
This will be fixed in v23.
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TKasparek
Senior Community Member
Posts: 246
Hero Points: 29
Re: Perl regex problem
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Reply #3 on:
June 06, 2018, 02:52:23 PM »
Clark, can you provide some insight as to what the issue is? I use regex a lot and am surprised I seen this before. It worries me a little that something basic like these would miss; makes me wonder if I've missed things I should have addressed in my past searches...
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Clark
SlickEdit Team Member
Senior Community Member
Posts: 6823
Hero Points: 526
Re: Perl regex problem
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Reply #4 on:
June 06, 2018, 02:55:11 PM »
The problem is with errors in optimization code
No logic errors.
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