Answer: How would I replace the string 'Red1' with $Red[1]?


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Answer: How would I replace the string 'Red1' with $Red[1]?

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Q&A > regular expressions > How would I replace the string 'Red1' with $Red[1]? contributed by QandAEditors

Use an array (or a hash). What you're trying to do now smells like symbolic refrences, which are just yicky (to use the technical term ) and make your code harder to write and maintain.

You will also need to use the /e modifier (which causes Perl to eval the right-side as an expression).

use strict;
my @red;
$red[1]='black';
$red[2]='red';
$line =~ s/\$red(\d)/$red[$1]/ge;                                     
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