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Full Discussion: Perl regex
Top Forums Programming Perl regex Post 302777793 by elixir_sinari on Friday 8th of March 2013 11:35:09 AM
Old 03-08-2013
Code:
open(my $myfile, '<', 'property.txt')
or die "Could not open property.txt: $!\n";

while(<$myfile>) {
 chomp;
 if(my ($var1, $var2) = /(.*?)=(.*)/) {
  ### do something with $var1 and $var2 ###
 }
}

Some advice:
  1. Bareword filehandles (such as MYFILE) are not recommended.
  2. Always test for exceptions.
  3. The 3-argument form of open, which explicitly specifies the mode of opening the file, is recommended.
  4. Never ever read from a filehandle (or filehandle reference) in list context. It loads the full file in memory, which might blow up your program in case of large files.
  5. The default operand for chomp is $_.
This User Gave Thanks to elixir_sinari For This Post:
 

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Text::Glob(3)						User Contributed Perl Documentation					     Text::Glob(3)

NAME
Text::Glob - match globbing patterns against text SYNOPSIS
use Text::Glob qw( match_glob glob_to_regex ); print "matched " if match_glob( "foo.*", "foo.bar" ); # prints foo.bar and foo.baz my $regex = glob_to_regex( "foo.*" ); for ( qw( foo.bar foo.baz foo bar ) ) { print "matched: $_ " if /$regex/; } DESCRIPTION
Text::Glob implements glob(3) style matching that can be used to match against text, rather than fetching names from a filesystem. If you want to do full file globbing use the File::Glob module instead. Routines match_glob( $glob, @things_to_test ) Returns the list of things which match the glob from the source list. glob_to_regex( $glob ) Returns a compiled regex which is the equivalent of the globbing pattern. glob_to_regex_string( $glob ) Returns a regex string which is the equivalent of the globbing pattern. SYNTAX
The following metacharacters and rules are respected. "*" - match zero or more characters "a*" matches "a", "aa", "aaaa" and many many more. "?" - match exactly one character "a?" matches "aa", but not "a", or "aaa" Character sets/ranges "example.[ch]" matches "example.c" and "example.h" "demo.[a-c]" matches "demo.a", "demo.b", and "demo.c" alternation "example.{foo,bar,baz}" matches "example.foo", "example.bar", and "example.baz" leading . must be explictly matched "*.foo" does not match ".bar.foo". For this you must either specify the leading . in the glob pattern (".*.foo"), or set $Text::Glob::strict_leading_dot to a false value while compiling the regex. "*" and "?" do not match / "*.foo" does not match "bar/baz.foo". For this you must either explicitly match the / in the glob ("*/*.foo"), or set $Text::Glob::strict_wildcard_slash to a false value with compiling the regex. BUGS
The code uses qr// to produce compiled regexes, therefore this module requires perl version 5.005_03 or newer. AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2002, 2003, 2006, 2007 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Glob, glob(3) perl v5.18.2 2017-10-06 Text::Glob(3)
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