Hi, I've been trying to figure this out for ages, but just can't see a way to do it. I need to replace certain digits in a string with the contents of a variable, however those digits may also appear elsewhere in the string and I need to only replace the digits in the exact location specfified. For example I need to search for the match below in my string and replace 99 (as assigned to speacial variable $1) with the contents of my variable. I do not want to replace the last 99 in the pattern match with the contents of my variable 
$line = "0165451234599123459935589";
$line =~ s/12345(99)1234599/$replace/;

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Is this even possible do to in a nice succinct one liner?

In reply to Specific substitution in regular expressions by cstrong

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