/usr/lib/perl5/Template/Constants.pm is in libtemplate-perl 2.22-0.1build2.
This file is owned by root:root, with mode 0o644.
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#
# Template::Constants.pm
#
# DESCRIPTION
# Definition of constants for the Template Toolkit.
#
# AUTHOR
# Andy Wardley <abw@wardley.org>
#
# COPYRIGHT
# Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved.
#
# This module is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
#============================================================================
package Template::Constants;
require Exporter;
use strict;
use warnings;
use Exporter;
# Perl::MinimumVersion seems to think this is a Perl 5.008ism...
# use base qw( Exporter );
use vars qw( @EXPORT_OK %EXPORT_TAGS );
use vars qw( $DEBUG_OPTIONS @STATUS @ERROR @CHOMP @DEBUG @ISA );
# ... so we'll do it the Old Skool way just to keep it quiet
@ISA = qw( Exporter );
our $VERSION = 2.75;
#========================================================================
# ----- EXPORTER -----
#========================================================================
# STATUS constants returned by directives
use constant STATUS_OK => 0; # ok
use constant STATUS_RETURN => 1; # ok, block ended by RETURN
use constant STATUS_STOP => 2; # ok, stoppped by STOP
use constant STATUS_DONE => 3; # ok, iterator done
use constant STATUS_DECLINED => 4; # ok, declined to service request
use constant STATUS_ERROR => 255; # error condition
# ERROR constants for indicating exception types
use constant ERROR_RETURN => 'return'; # return a status code
use constant ERROR_FILE => 'file'; # file error: I/O, parse, recursion
use constant ERROR_VIEW => 'view'; # view error
use constant ERROR_UNDEF => 'undef'; # undefined variable value used
use constant ERROR_PERL => 'perl'; # error in [% PERL %] block
use constant ERROR_FILTER => 'filter'; # filter error
use constant ERROR_PLUGIN => 'plugin'; # plugin error
# CHOMP constants for PRE_CHOMP and POST_CHOMP
use constant CHOMP_NONE => 0; # do not remove whitespace
use constant CHOMP_ALL => 1; # remove whitespace up to newline
use constant CHOMP_ONE => 1; # new name for CHOMP_ALL
use constant CHOMP_COLLAPSE => 2; # collapse whitespace to a single space
use constant CHOMP_GREEDY => 3; # remove all whitespace including newlines
# DEBUG constants to enable various debugging options
use constant DEBUG_OFF => 0; # do nothing
use constant DEBUG_ON => 1; # basic debugging flag
use constant DEBUG_UNDEF => 2; # throw undef on undefined variables
use constant DEBUG_VARS => 4; # general variable debugging
use constant DEBUG_DIRS => 8; # directive debugging
use constant DEBUG_STASH => 16; # general stash debugging
use constant DEBUG_CONTEXT => 32; # context debugging
use constant DEBUG_PARSER => 64; # parser debugging
use constant DEBUG_PROVIDER => 128; # provider debugging
use constant DEBUG_PLUGINS => 256; # plugins debugging
use constant DEBUG_FILTERS => 512; # filters debugging
use constant DEBUG_SERVICE => 1024; # context debugging
use constant DEBUG_ALL => 2047; # everything
# extra debugging flags
use constant DEBUG_CALLER => 4096; # add caller file/line
use constant DEBUG_FLAGS => 4096; # bitmask to extraxt flags
$DEBUG_OPTIONS = {
&DEBUG_OFF => off => off => &DEBUG_OFF,
&DEBUG_ON => on => on => &DEBUG_ON,
&DEBUG_UNDEF => undef => undef => &DEBUG_UNDEF,
&DEBUG_VARS => vars => vars => &DEBUG_VARS,
&DEBUG_DIRS => dirs => dirs => &DEBUG_DIRS,
&DEBUG_STASH => stash => stash => &DEBUG_STASH,
&DEBUG_CONTEXT => context => context => &DEBUG_CONTEXT,
&DEBUG_PARSER => parser => parser => &DEBUG_PARSER,
&DEBUG_PROVIDER => provider => provider => &DEBUG_PROVIDER,
&DEBUG_PLUGINS => plugins => plugins => &DEBUG_PLUGINS,
&DEBUG_FILTERS => filters => filters => &DEBUG_FILTERS,
&DEBUG_SERVICE => service => service => &DEBUG_SERVICE,
&DEBUG_ALL => all => all => &DEBUG_ALL,
&DEBUG_CALLER => caller => caller => &DEBUG_CALLER,
};
@STATUS = qw( STATUS_OK STATUS_RETURN STATUS_STOP STATUS_DONE
STATUS_DECLINED STATUS_ERROR );
@ERROR = qw( ERROR_FILE ERROR_VIEW ERROR_UNDEF ERROR_PERL
ERROR_RETURN ERROR_FILTER ERROR_PLUGIN );
@CHOMP = qw( CHOMP_NONE CHOMP_ALL CHOMP_ONE CHOMP_COLLAPSE CHOMP_GREEDY );
@DEBUG = qw( DEBUG_OFF DEBUG_ON DEBUG_UNDEF DEBUG_VARS
DEBUG_DIRS DEBUG_STASH DEBUG_CONTEXT DEBUG_PARSER
DEBUG_PROVIDER DEBUG_PLUGINS DEBUG_FILTERS DEBUG_SERVICE
DEBUG_ALL DEBUG_CALLER DEBUG_FLAGS );
@EXPORT_OK = ( @STATUS, @ERROR, @CHOMP, @DEBUG );
%EXPORT_TAGS = (
'all' => [ @EXPORT_OK ],
'status' => [ @STATUS ],
'error' => [ @ERROR ],
'chomp' => [ @CHOMP ],
'debug' => [ @DEBUG ],
);
sub debug_flags {
my ($self, $debug) = @_;
my (@flags, $flag, $value);
$debug = $self unless defined($debug) || ref($self);
if ($debug =~ /^\d+$/) {
foreach $flag (@DEBUG) {
next if $flag =~ /^DEBUG_(OFF|ALL|FLAGS)$/;
# don't trash the original
my $copy = $flag;
$flag =~ s/^DEBUG_//;
$flag = lc $flag;
return $self->error("no value for flag: $flag")
unless defined($value = $DEBUG_OPTIONS->{ $flag });
$flag = $value;
if ($debug & $flag) {
$value = $DEBUG_OPTIONS->{ $flag };
return $self->error("no value for flag: $flag") unless defined $value;
push(@flags, $value);
}
}
return wantarray ? @flags : join(', ', @flags);
}
else {
@flags = split(/\W+/, $debug);
$debug = 0;
foreach $flag (@flags) {
$value = $DEBUG_OPTIONS->{ $flag };
return $self->error("unknown debug flag: $flag") unless defined $value;
$debug |= $value;
}
return $debug;
}
}
1;
__END__
=head1 NAME
Template::Constants - Defines constants for the Template Toolkit
=head1 SYNOPSIS
use Template::Constants qw( :status :error :all );
=head1 DESCRIPTION
The C<Template::Constants> modules defines, and optionally exports into the
caller's namespace, a number of constants used by the L<Template> package.
Constants may be used by specifying the C<Template::Constants> package
explicitly:
use Template::Constants;
print Template::Constants::STATUS_DECLINED;
Constants may be imported into the caller's namespace by naming them as
options to the C<use Template::Constants> statement:
use Template::Constants qw( STATUS_DECLINED );
print STATUS_DECLINED;
Alternatively, one of the following tagset identifiers may be specified
to import sets of constants: 'C<:status>', 'C<:error>', 'C<:all>'.
use Template::Constants qw( :status );
print STATUS_DECLINED;
Consult the documentation for the C<Exporter> module for more information
on exporting variables.
=head1 EXPORTABLE TAG SETS
The following tag sets and associated constants are defined:
:status
STATUS_OK # no problem, continue
STATUS_RETURN # ended current block then continue (ok)
STATUS_STOP # controlled stop (ok)
STATUS_DONE # iterator is all done (ok)
STATUS_DECLINED # provider declined to service request (ok)
STATUS_ERROR # general error condition (not ok)
:error
ERROR_RETURN # return a status code (e.g. 'stop')
ERROR_FILE # file error: I/O, parse, recursion
ERROR_UNDEF # undefined variable value used
ERROR_PERL # error in [% PERL %] block
ERROR_FILTER # filter error
ERROR_PLUGIN # plugin error
:chomp # for PRE_CHOMP and POST_CHOMP
CHOMP_NONE # do not remove whitespace
CHOMP_ONE # remove whitespace to newline
CHOMP_ALL # old name for CHOMP_ONE (deprecated)
CHOMP_COLLAPSE # collapse whitespace to a single space
CHOMP_GREEDY # remove all whitespace including newlines
:debug
DEBUG_OFF # do nothing
DEBUG_ON # basic debugging flag
DEBUG_UNDEF # throw undef on undefined variables
DEBUG_VARS # general variable debugging
DEBUG_DIRS # directive debugging
DEBUG_STASH # general stash debugging
DEBUG_CONTEXT # context debugging
DEBUG_PARSER # parser debugging
DEBUG_PROVIDER # provider debugging
DEBUG_PLUGINS # plugins debugging
DEBUG_FILTERS # filters debugging
DEBUG_SERVICE # context debugging
DEBUG_ALL # everything
DEBUG_CALLER # add caller file/line info
DEBUG_FLAGS # bitmap used internally
:all
All the above constants.
=head1 AUTHOR
Andy Wardley E<lt>abw@wardley.orgE<gt> L<http://wardley.org/>
=head1 COPYRIGHT
Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=head1 SEE ALSO
L<Template>, C<Exporter>
=cut
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