/$search_pattern/ is unanchored: 
"abcdefg" =~ /cd/      # true
"abcdefg" =~ /^cd/     # anchored at start, false
"abcdefg" =~ /fg$/     # anchored at end, true

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The regular expression I provided will match anywhere in the line, unless you've modified that behavior by inserting a ^ or $ at the beginning of the search string, or the end, respectively.

In reply to RE: RE: Re: Faster way? by Fastolfe
in thread Faster way? by the_slycer

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