Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
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Regular expressions are a declarative language, mainly used for pattern matching within strings. Please include a tag specifying the programming language you are using, together with this tag.
6
votes
Accepted
Parse data from Input file and print results
Unnecessary use of lookahead regex
Consider this line:
if( $data[0] =~ /FileName=([^_]+(?=_))_(\S+)_file.csv:(\S+),/gm ){
First, as commented above we can remove the g and m flags. Then
/[^_]+(? …
11
votes
Simple C transpiler
Unescaped left brace in a regex is deprecated and will be illegal from perl version 5.32 on
You have two lines (line 11 and 21) where you have used a literal { in your regex without escaping it. … The warning you will get is:
Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.32), passed through in regex; marked by <-- HERE in m/([A-z][A-z0-9]*)\s+:([A-z][A-z0-9]*) ({ …