RegEx- Use of uninitialized value in substitution iterator

[drkestrel]

I use

$stripped=~ s#/\*[^*]*\*+([^/*][^*]*\*+)*/|("(\\.|[^"\\])*"|'(\\.|[^'\\])*'|.[^/"'\\]*)#$2#gs;

for stripping JavaScript comments text files. Sometimes, I get the error Use of uninitialized value in substitution iterator at .....

the variable

$stripped

is read from file and as confirmed by

print $stripped;

prior to the line in question,

$stripped

is definitely initialised!

So what is wrong?

 

[goBoating]

I don't have time to parse that regex, but, it may be that you are successful in getting and at the same time failing to match the portion in your second set of parens??? If so, you would not have anything in $2 to do your replacement.

' just a thought. 'hope this helps

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[drkestrel]

the regex is from O Reilly Cookbook, so presume it would be 'right' ?