Re: Escaping Ampersands in XML

[Ben Siders]

Whew! That's the same one I finally came up with. Glad to see I was on the right track. The original solution didn't work at all.

Toby Stuart wrote:

-----Original Message-----
From: Ben Siders [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 16, 2003 7:38 AM
To: Perl
Subject: Escaping Ampersands in XML


I've got a real easy one here (in theory). I have some XML files that were generated by a program, but generated imperfectly. There's some naked ampersands that need to be converted to &. I need a regexp that will detect them and change them. Sounds easy enough.

The pattern I want to match is an ampersand that is NOT immediately followed by a few characters and then a semicolon. Any ideas?

This is the best I've come up with so far. It should match an ampersand whose following characters, up to five, are not semicolons. I don't feel that this is a great solution. I'm hoping the community can think of a better one.

$line =~ s/\&[^;]{,5}/\&/g;

Try this one:

s/&(?!\w+;)/&/g

I'm hoping that'll match something like: "<tag>Blah data &</tag>", but NOT match "<tag>Blah &amp;</tag>".

I'm not sure if I'm on the right track here. I also can't match other escaped characters such as: "<tag>Copyright &copy; 2003</tag>".



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