blockhead has answered your question.

A better approach is to compare your two name strings using eq and lc instead of a regex: 

$match_name = (lc($cache_name) eq lc($task_name$)) ? "match" : "no mat
+ch";

[download]
For your version comparison, you might consider using index instead of a regex. It is not clear what you are trying to do (why did you initialize the version to an empty string?).

In reply to Re: regex corrupting separate regex by toolic
in thread regex corrupting separate regex by boxofrox

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