Yours is a Frequently Asked Question. The answer to it can be found in the standard Perl documentation by using the command perldoc -q balanced, also known as:
Can I use Perl regular expressions to match balanced text?
Although Perl regular expressions are more powerful than
"mathematical" regular expressions because they feature
conveniences like backreferences ("\1" and its ilk),
they still aren't powerful enough--with the possible
exception of bizarre and experimental features in the
development-track releases of Perl. You still need to
use non-regex techniques to parse balanced text, such as
the text enclosed between matching parentheses or
braces, for example.
An elaborate subroutine (for 7-bit ASCII only) to pull
out balanced and possibly nested single chars, like "`"
and "'", "{"and "}", or "(" and ")" can be found in
http://www.perl.com/CPAN/authors/id/TOMC/scripts/pull_quot
+es.gz
The C::Scan module from CPAN contains such subs for
internaluse, but they are undocumented.
Further information can be found in perldoc -q How do I remove HTML which despite the name, is directly applicable to XML.
Regards,
Helgi Briem
helgi AT decode DOT is
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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