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# gtkmm - Util module
#
# Copyright 2001 Free Software Foundation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# # but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
# This file holds basic functions used throughout gtkmmproc modules.
# Functions in this module are exported so there is no need to
# request them by module name.
#
package Util;
use strict;
use warnings;
BEGIN {
use Exporter ();
our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
# set the version for version checking
$VERSION = 1.00;
@ISA = qw(Exporter);
@EXPORT = qw(&string_unquote &string_trim &string_canonical
&trace &unique);
%EXPORT_TAGS = ( );
# your exported package globals go here,
# as well as any optionally exported functions
#@EXPORT_OK = qw($Var1 %Hashit &func3);
}
our @EXPORT_OK;
#$ string_unquote($string)
# Removes leading and trailing quotes.
sub string_unquote($)
{
my ($str) = @_;
$str =~ s/^['`"]// ;
$str =~ s/['`"]$// ;
return $str;
}
# $ string_trim($string)
# Removes leading and trailing white space.
sub string_trim($)
{
($_) = @_;
s/^\s+//;
s/\s+$//;
return $_;
}
# $ string_canonical($string)
# Convert - to _.
sub string_canonical($)
{
($_) = @_;
s/-/_/g ; # g means 'replace all'
s/\//_/g ; # g means 'replace all'
return $_;
}
#
# Back tracing utility.
# Prints the call stack.
#
# void trace()
sub trace()
{
my ($package, $filename, $line, $subroutine, $hasargs,
$wantarray, $evaltext, $is_require, $hints, $bitmask) = caller(1);
no warnings qw(uninitialized);
my $i = 2;
print "Trace on ${subroutine} called from ${filename}:${line}\n";
while (1)
{
($package, $filename, $line, $subroutine) = caller($i);
$i++;
next if ($line eq "");
print " From ${subroutine} call from ${filename}:${line}\n";
}
}
sub unique(@)
{
my %hash;
foreach (@_)
{
$hash{$_}=1;
}
return keys %hash;
}
1; # indicate proper module load.
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