[tpm] I wish I was better at regex's

Fulko Hew fulko.hew at gmail.com
Wed Mar 9 08:15:30 PST 2011

Today's regex problem is a standard problem, that has standard answers,
I just don't know them, and I haven't found them...

"Strip comments from lines while obeying quoted strings".

I've got a fellow who's dealing with 'registry files', but needs to
strip comments off of the end of the lines (I.e. anything after a semicolon)
but preserve semicolons (and text) if found within a quoted string.

I know there are hard ways to do it, but there's got to be a module
to handle it for me.

Here are some example strings:

key="value1;value2"     ; comment
key='value1;value2'     ; comment
"key"="value1"          ; comment
"key"="value1;value2"   ; comment
"key"="val\"ue1;value2" ; comment
"key"='val\'ue1;value2' ; comment
"key"='val\"ue1;value2' ; comment


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