I think part of your issue is your understanding of what \b means. From perlre:
A word boundary (\b ) is a spot between two characters that has a \w on one side of it and a \W on the other side of it (in either order), counting the imaginary characters off the beginning and end of the string as matching a \W .

This means \$AVG will never match /\b\$AVG/ because there is no word boundary between a backslash (\W) and a dollar sign (\W).

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re: regex not matching special char by kennethk
in thread regex not matching special char by mnooning

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