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NKH / Spreadsheet-Perl-0.12 / Perl / Validator.pm 

            

              
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package Spreadsheet::Perl ;
use 5.006 ;
use Carp ;
use strict ;
use warnings ;
require Exporter ;
our @ISA = qw(Exporter) ;
our %EXPORT_TAGS = 
        (
        #~ 'all' => [ qw(Validator AddValidator GenerateValidatorSub) ]
        'all' => []
        ) ;
our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } ) ;
our @EXPORT ;
push @EXPORT, qw( Validator AddValidator ) ;
our $VERSION = '0.01' ;
#-------------------------------------------------------------------------------
sub Validator
{
# Arguments must be: a name, a sub, an optional list of arguments
return bless [$_[0], GenerateValidatorSub(@_)], "Spreadsheet::Perl::Validator::Set" ;
}
#-------------------------------------------------------------------------------
sub AddValidator
{
# Arguments must be: a name, a sub, an optional list of arguments
return bless [$_[0], GenerateValidatorSub(@_)], "Spreadsheet::Perl::Validator::Add" ;
}
#-------------------------------------------------------------------------------
sub GenerateValidatorSub
{
my $name = shift ;
my $sub  = shift ;
my @args = @_ ;
if(defined($name) && ('' eq ref $name) && ($name ne ''))
        {
        }
else
        {
        confess "Validator error: No name given to this validator.\n" ;
        }
         
confess "Validator error: No validator sub.\n" unless(defined $sub && 'CODE' eq ref $sub) ;
return
        (
        sub
                {
                my $self = shift ;
                 
                if($self->{DEBUG}{VALIDATOR})
                        {
                        my $dh = $self->{DEBUG}{ERROR_HANDLE} ;
                        print $dh "Calling Validator '$name': " ;
                        }
                         
                my $value_is_valid = $sub->($self, @_, @args) ;
                 
                if($self->{DEBUG}{VALIDATOR})
                        {
                        my $dh = $self->{DEBUG}{ERROR_HANDLE} ;
                         
                        if($value_is_valid)
                                {
                                print $dh "Valid.\n" ;
                                }
                        else
                                {
                                print $dh "Not valid\n" ;
                                }
                        }
                 
                return($value_is_valid) ;
                }
        ) ;
}
#-------------------------------------------------------------------------------
1 ;
__END__
=head1 NAME
Spreadsheet::Perl::Validator - Cell Validators
=head1 SYNOPSIS
   
=head1 DESCRIPTION
Part of Spreadsheet::Perl.
=head1 AUTHOR
Khemir Nadim ibn Hamouda. <nadim@khemir.net>
  Copyright (c) 2004 Nadim Ibn Hamouda el Khemir. All rights
  reserved.  This program is free software; you can redis-
  tribute it and/or modify it under the same terms as Perl
  itself.
   
If you find any value in this module, mail me!  All hints, tips, flames and wishes
are welcome at <nadim@khemir.net>.
=cut