datetime::format::builder::parser::dispatch(3pm) [debian man page]

DateTime::Format::Builder::Parser::Dispatch(3pm)	User Contributed Perl Documentation	  DateTime::Format::Builder::Parser::Dispatch(3pm)

NAME

       DateTime::Format::Builder::Parser::Dispatch - Dispatch parsers by group

SYNOPSIS

	   package SampleDispatch;
	   use DateTime::Format::Builder
	   (
	       parsers => {
		   parse_datetime => [
		       {
			   Dispatch => sub {
			       return 'fnerk';
			   }
		       }
		   ]
	       },
	       groups => {
		   fnerk => [
		       {
			   regex => qr/^(d{4})(dd)(dd)$/,
			   params => [qw( year month day )],
		       },
		   ]
	       }
	   );

DESCRIPTION

       "Dispatch" adds another parser type to "Builder" permitting dispatch of parsing according to group names.

SPECIFICATION

       "Dispatch" has just one key: "Dispatch". The value should be a reference to a subroutine that returns one of:

       o   "undef", meaning no groups could be found.

       o   An empty list, meaning no groups could be found.

       o   A single string, meaning: use this group

       o   A list of strings, meaning: use these groups in this order.

       Groups are specified much like the example in the SYNOPSIS.  They follow the same format as when you specify them for methods.

SIDEEFFECTS

       Your group parser can also be a Dispatch parser. Thus you could potentially end up with an infinitely recursive parser.

THANKS

       See the main module's section.

SUPPORT

       Support for this module is provided via the datetime@perl.org email list. See http://lists.perl.org/ for more details.

       Alternatively, log them via the CPAN RT system via the web or email:

	   http://perl.dellah.org/rt/dtbuilder
	   bug-datetime-format-builder@rt.cpan.org

       This makes it much easier for me to track things and thus means your problem is less likely to be neglected.

LICENCE AND COPYRIGHT

       Copyright X Iain Truskett, 2003. All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.000 or,
       at your option, any later version of Perl 5 you may have available.

       The full text of the licences can be found in the Artistic and COPYING files included with this module, or in perlartistic and perlgpl as
       supplied with Perl 5.8.1 and later.

AUTHOR

       Iain Truskett <spoon@cpan.org>

SEE ALSO

       "datetime@perl.org" mailing list.

       http://datetime.perl.org/

       perl, DateTime, DateTime::Format::Builder

perl v5.10.1							    2010-03-14			  DateTime::Format::Builder::Parser::Dispatch(3pm)

DateTime::Format::Builder::Parser::Regex(3pm)		User Contributed Perl Documentation	     DateTime::Format::Builder::Parser::Regex(3pm)

NAME

       DateTime::Format::Builder::Parser::Regex - Regex based date parsing

SYNOPSIS

	  my $parser = DateTime::Format::Builder->create_parser(
	       regex  => qr/^(dddd)(dd)(dd)T(dd)(dd)(dd)$/,
	       params => [ qw( year month day hour minute second ) ],
	  );

SPECIFICATION

       In addition to the common keys, "Regex" supports:

       o   regex is a regular expression that should capture elements of the datetime string.  This is a required element. This is the key whose
	   presence indicates it's a specification that belongs to this class.

       o   params is an arrayref of key names. The captures from the regex are mapped to these ($1 to the first element, $2 to the second, and so
	   on) and handed to "DateTime->new()".  This is a required element.

       o   extra is a hashref of extra arguments you wish to give to "DateTime->new()". For example, you could set the "year" or "time_zone" to
	   defaults:

	       extra => { year => 2004, time_zone => "Australia/Sydney" },

       o   constructor is either an arrayref or a coderef. If an arrayref then the first element is a class name or object, and the second element
	   is a method name (or coderef since Perl allows that sort of thing).	The arguments to the call are anything in $p and anything given in
	   the "extra" option above.

	   If only a coderef is supplied, then it is called with arguments of $self, $p and "extra".

	   In short:

		       $self->$coderef( %$p, %{ $self->{extra} } );

	   The method is expected to return a valid DateTime object, or undef in event of failure, but can conceivably return anything it likes.
	   So long as it's 'true'.

THANKS

       See the main module's section.

SUPPORT

       Support for this module is provided via the datetime@perl.org email list. See http://lists.perl.org/ for more details.

       Alternatively, log them via the CPAN RT system via the web or email:

	   http://perl.dellah.org/rt/dtbuilder
	   bug-datetime-format-builder@rt.cpan.org

       This makes it much easier for me to track things and thus means your problem is less likely to be neglected.

LICENCE AND COPYRIGHT

       Copyright X Iain Truskett, 2003. All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.000 or,
       at your option, any later version of Perl 5 you may have available.

       The full text of the licences can be found in the Artistic and COPYING files included with this module, or in perlartistic and perlgpl as
       supplied with Perl 5.8.1 and later.

AUTHOR

       Iain Truskett <spoon@cpan.org>

SEE ALSO

       "datetime@perl.org" mailing list.

       http://datetime.perl.org/

       perl, DateTime, DateTime::Format::Builder

perl v5.10.1							    2010-03-14			     DateTime::Format::Builder::Parser::Regex(3pm)