TAP::Parser::SourceHandler::Perl(3pm)			 Perl Programmers Reference Guide		     TAP::Parser::SourceHandler::Perl(3pm)

NAME

       TAP::Parser::SourceHandler::Perl - Stream TAP from a Perl executable

VERSION

       Version 3.23

SYNOPSIS

	 use TAP::Parser::Source;
	 use TAP::Parser::SourceHandler::Perl;

	 my $source = TAP::Parser::Source->new->raw( 'script.pl' );
	 $source->assemble_meta;

	 my $class = 'TAP::Parser::SourceHandler::Perl';
	 my $vote  = $class->can_handle( $source );
	 my $iter  = $class->make_iterator( $source );

DESCRIPTION

       This is a Perl TAP::Parser::SourceHandler - it has 2 jobs:

       1. Figure out if the TAP::Parser::Source it's given is actually a Perl script ("can_handle").

       2. Creates an iterator for Perl sources ("make_iterator").

       Unless you're writing a plugin or subclassing TAP::Parser, you probably won't need to use this module directly.

METHODS

   Class Methods
       "can_handle"

	 my $vote = $class->can_handle( $source );

       Only votes if $source looks like a file.  Casts the following votes:

	 0.9  if it has a shebang ala "#!...perl"
	 0.75 if it has any shebang
	 0.8  if it's a .t file
	 0.9  if it's a .pl file
	 0.75 if it's in a 't' directory
	 0.25 by default (backwards compat)

       "make_iterator"

	 my $iterator = $class->make_iterator( $source );

       Constructs & returns a new TAP::Parser::Iterator::Process for the source.  Assumes "$source->raw" contains a reference to the perl script.
       "croak"s if the file could not be found.

       The command to run is built as follows:

	 $perl @switches $perl_script @test_args

       The perl command to use is determined by "get_perl".  The command generated is guaranteed to preserve:

	 PERL5LIB
	 PERL5OPT
	 Taint Mode, if set in the script's shebang

       Note: the command generated will not respect any shebang line defined in your Perl script.  This is only a problem if you have compiled a
       custom version of Perl or if you want to use a specific version of Perl for one test and a different version for another, for example:

	 #!/path/to/a/custom_perl --some --args
	 #!/usr/local/perl-5.6/bin/perl -w

       Currently you need to write a plugin to get around this.

       "get_taint"

       Decode any taint switches from a Perl shebang line.

	 # $taint will be 't'
	 my $taint = TAP::Parser::SourceHandler::Perl->get_taint( '#!/usr/bin/perl -t' );

	 # $untaint will be undefined
	 my $untaint = TAP::Parser::SourceHandler::Perl->get_taint( '#!/usr/bin/perl' );

       "get_perl"

       Gets the version of Perl currently running the test suite.

SUBCLASSING

       Please see "SUBCLASSING" in TAP::Parser for a subclassing overview.

   Example
	 package MyPerlSourceHandler;

	 use strict;
	 use vars '@ISA';

	 use TAP::Parser::SourceHandler::Perl;

	 @ISA = qw( TAP::Parser::SourceHandler::Perl );

	 # use the version of perl from the shebang line in the test file
	 sub get_perl {
	     my $self = shift;
	     if (my $shebang = $self->shebang( $self->{file} )) {
		 $shebang =~ /^#!(.*perl.*?)(?:(?:s)|(?:$))/;
		 return $1 if $1;
	     }
	     return $self->SUPER::get_perl(@_);
	 }

SEE ALSO

       TAP::Object, TAP::Parser, TAP::Parser::IteratorFactory, TAP::Parser::SourceHandler, TAP::Parser::SourceHandler::Executable,
       TAP::Parser::SourceHandler::File, TAP::Parser::SourceHandler::Handle, TAP::Parser::SourceHandler::RawTAP

perl v5.16.2							    2012-10-25				     TAP::Parser::SourceHandler::Perl(3pm)