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(jeffa) Re: Is there a Limit on Matching .*

by jeffa (Bishop)
on Jul 15, 2003 at 15:09 UTC ( #274443=note: print w/replies, xml ) Need Help??


in reply to Is there a Limit on Matching .*

I am actually a bit shocked that no-one mentioned using a negated character class to grab what you need. The idea is to grab everything that is not the character '<':
my ($title) = $chunk =~ /<title>([^<]+)/; my @h1 = $chunk =~ /<h1>([^<]+)/g;
However, this is still not perfect. I personally think that nothing is too simple for a parser module, especially if that parser module is HTML::TokeParser::Simple:
use strict; use warnings; use Data::Dumper; use HTML::TokeParser::Simple; my $d = do {local $/;<DATA>}; my $p = HTML::TokeParser::Simple->new(\$d); my %hash; while ( my $token = $p->get_token ) { $hash{title} = $p->get_token->return_text if $token->is_start_tag('title'); push @{$hash{h1}}, $p->get_token->return_text if $token->is_start_tag('h1'); } print Dumper \%hash; __DATA__ <html> <head> <title>foo</title> </head> <body> <h1>one</h1> <h1>two</h1> <h1>three</h1> </body> </html>

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

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[jdporter]: one prog I have has a UI which allows to input a bit mask
[jdporter]: currently it expects the bitmask to be in the form of a hex number, e.g. 0x0101
[jdporter]: but I'd like to let the user specify it as individual bits, i.e. 0b0000000100000001
[jdporter]: there is no bit/binary equivalent of hex, right?
[jdporter]: I guess that the most direct way of doing it is with some magical incantation involving unpack or whatever
[jdporter]: let me google that for me ;-)
[jdporter]: hex points explicitly to oct, which does the job. :-D

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