Re: One line assigment statement with regex match


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Re: One line assigment statement with regex match

by broquaint (Abbot)

on Jun 23, 2005 at 09:27 UTC ( #469331=note: print w/replies, xml )

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in reply to One line assigment statement with regex match

This looks like a good case for Regex::Presuf i.e

use Regex::PreSuf;

my $lineFromSomeTextFile = "your line right here\n";
my @terms                = qw/ something matching a line /;
my($word) = $lineFromSomeTextFile =~ /(${\presuf(@terms)})/;
# or without PreSuf
my($word) = $lineFromSomeTextFile =~ do {local $" = '|'; "(@terms)"};

print "found '$word' in: $lineFromSomeTextFile";

__output__

found 'line' in: your line right here
[download]

HTH

_________ broquaint

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Re^2: One line assigment statement with regex match
by planetscape (Chancellor) on Jun 23, 2005 at 18:05 UTC

Just because I really like grinder's Regexp::Assemble, and think such a cool module needs more exposure:

#!/usr/bin/perl -w

use Regexp::Assemble;

my $lineFromSomeTextFile = "your line right here\n";
my $ra = Regexp::Assemble->new->add(
    "something",
    "matching",
    "a",
    "line"
);
print $ra->re . "\n"; # because the output is cool
                      # and sometimes educational
my($word) = $lineFromSomeTextFile =~ /($ra)/;

print "found '$word' in: $lineFromSomeTextFile";
[download]

(For more on Regexp::Assemble see: Why machine-generated solutions will never cease to amaze me.)

HTH,

planetscape

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