a regexp question

C. Abney cabney at ucsd.edu
Fri May 9 14:43:03 CDT 2003

On Fri, 2003-05-09 at 10:45, John Chung wrote:
> I want to do a simple substitution in html files where I 
> can append some string to URL's (inside anchor tag).

Your code does more than simple substitution, it deletes everything not
in the parens.  Maybe that's what you want.

> while (<>) {
> 	s/href="([^"])+"/appendit($1)/eg;
> 	print $_;
> }

maybe perldoc perlrequick to start.
perldoc perlintro (header Regular Expressions)
perldoc perlfaq6
perldoc perlretut

The parens enclose only one character, one that is not a double-quote. 
The plus is looking for one or more copies of that character?

You need something more like:



Charles Abney
Polymorphism Research Laboratory, 0603
UCSD School of Medicine
9500 Gilman Dr.
La Jolla, CA 92093-0603

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