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.\" ========================================================================
.\"
.IX Title "TAP::Parser::Source 3perl"
.TH TAP::Parser::Source 3perl "2011-09-19" "perl v5.14.2" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
TAP::Parser::Source \- a TAP source & meta data about it
.SH "VERSION"
.IX Header "VERSION"
Version 3.23
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 8
\&  use TAP::Parser::Source;
\&  my $source = TAP::Parser::Source\->new;
\&  $source\->raw( \e\*(Aqreference to raw TAP source\*(Aq )
\&         \->config( \e%config )
\&         \->merge( $boolean )
\&         \->switches( \e@switches )
\&         \->test_args( \e@args )
\&         \->assemble_meta;
\&
\&  do { ... } if $source\->meta\->{is_file};
\&  # see assemble_meta for a full list of data available
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A \s-1TAP\s0 \fIsource\fR is something that produces a stream of \s-1TAP\s0 for the parser to
consume, such as an executable file, a text file, an archive, an \s-1IO\s0 handle, a
database, etc.  \f(CW\*(C`TAP::Parser::Source\*(C'\fRs encapsulate these \fIraw\fR sources, and
provide some useful meta data about them.  They are used by
TAP::Parser::SourceHandlers, which do whatever is required to produce &
capture a stream of \s-1TAP\s0 from the \fIraw\fR source, and package it up in a
TAP::Parser::Iterator for the parser to consume.
.PP
Unless you're writing a new TAP::Parser::SourceHandler, a plugin or
subclassing TAP::Parser, you probably won't need to use this module directly.
.SH "METHODS"
.IX Header "METHODS"
.SS "Class Methods"
.IX Subsection "Class Methods"
\fI\f(CI\*(C`new\*(C'\fI\fR
.IX Subsection "new"
.PP
.Vb 1
\& my $source = TAP::Parser::Source\->new;
.Ve
.PP
Returns a new \f(CW\*(C`TAP::Parser::Source\*(C'\fR object.
.SS "Instance Methods"
.IX Subsection "Instance Methods"
\fI\f(CI\*(C`raw\*(C'\fI\fR
.IX Subsection "raw"
.PP
.Vb 2
\&  my $raw = $source\->raw;
\&  $source\->raw( $some_value );
.Ve
.PP
Chaining getter/setter for the raw \s-1TAP\s0 source.  This is a reference, as it may
contain large amounts of data (eg: raw \s-1TAP\s0).
.PP
\fI\f(CI\*(C`meta\*(C'\fI\fR
.IX Subsection "meta"
.PP
.Vb 2
\&  my $meta = $source\->meta;
\&  $source\->meta({ %some_value });
.Ve
.PP
Chaining getter/setter for meta data about the source.  This defaults to an
empty hashref.  See \*(L"assemble_meta\*(R" for more info.
.PP
\fI\f(CI\*(C`has_meta\*(C'\fI\fR
.IX Subsection "has_meta"
.PP
True if the source has meta data.
.PP
\fI\f(CI\*(C`config\*(C'\fI\fR
.IX Subsection "config"
.PP
.Vb 2
\&  my $config = $source\->config;
\&  $source\->config({ %some_value });
.Ve
.PP
Chaining getter/setter for the source's configuration, if any has been provided
by the user.  How it's used is up to you.  This defaults to an empty hashref.
See \*(L"config_for\*(R" for more info.
.PP
\fI\f(CI\*(C`merge\*(C'\fI\fR
.IX Subsection "merge"
.PP
.Vb 2
\&  my $merge = $source\->merge;
\&  $source\->config( $bool );
.Ve
.PP
Chaining getter/setter for the flag that dictates whether \s-1STDOUT\s0 and \s-1STDERR\s0
should be merged (where appropriate).  Defaults to undef.
.PP
\fI\f(CI\*(C`switches\*(C'\fI\fR
.IX Subsection "switches"
.PP
.Vb 2
\&  my $switches = $source\->switches;
\&  $source\->config([ @switches ]);
.Ve
.PP
Chaining getter/setter for the list of command-line switches that should be
passed to the source (where appropriate).  Defaults to undef.
.PP
\fI\f(CI\*(C`test_args\*(C'\fI\fR
.IX Subsection "test_args"
.PP
.Vb 2
\&  my $test_args = $source\->test_args;
\&  $source\->config([ @test_args ]);
.Ve
.PP
Chaining getter/setter for the list of command-line arguments that should be
passed to the source (where appropriate).  Defaults to undef.
.PP
\fI\f(CI\*(C`assemble_meta\*(C'\fI\fR
.IX Subsection "assemble_meta"
.PP
.Vb 1
\&  my $meta = $source\->assemble_meta;
.Ve
.PP
Gathers meta data about the \*(L"raw\*(R" source, stashes it in \*(L"meta\*(R" and returns
it as a hashref.  This is done so that the TAP::Parser::SourceHandlers don't
have to repeat common checks.  Currently this includes:
.PP
.Vb 3
\&    is_scalar => $bool,
\&    is_hash   => $bool,
\&    is_array  => $bool,
\&
\&    # for scalars:
\&    length => $n
\&    has_newlines => $bool
\&
\&    # only done if the scalar looks like a filename
\&    is_file => $bool,
\&    is_dir  => $bool,
\&    is_symlink => $bool,
\&    file => {
\&        # only done if the scalar looks like a filename
\&        basename => $string, # including ext
\&        dir      => $string,
\&        ext      => $string,
\&        lc_ext   => $string,
\&        # system checks
\&        exists  => $bool,
\&        stat    => [ ... ], # perldoc \-f stat
\&        empty   => $bool,
\&        size    => $n,
\&        text    => $bool,
\&        binary  => $bool,
\&        read    => $bool,
\&        write   => $bool,
\&        execute => $bool,
\&        setuid  => $bool,
\&        setgid  => $bool,
\&        sticky  => $bool,
\&        is_file => $bool,
\&        is_dir  => $bool,
\&        is_symlink => $bool,
\&        # only done if the file\*(Aqs a symlink
\&        lstat      => [ ... ], # perldoc \-f lstat
\&        # only done if the file\*(Aqs a readable text file
\&        shebang => $first_line,
\&    }
\&
\&  # for arrays:
\&  size => $n,
.Ve
.PP
\fI\f(CI\*(C`shebang\*(C'\fI\fR
.IX Subsection "shebang"
.PP
Get the shebang line for a script file.
.PP
.Vb 1
\&  my $shebang = TAP::Parser::Source\->shebang( $some_script );
.Ve
.PP
May be called as a class method
.PP
\fI\f(CI\*(C`config_for\*(C'\fI\fR
.IX Subsection "config_for"
.PP
.Vb 1
\&  my $config = $source\->config_for( $class );
.Ve
.PP
Returns \*(L"config\*(R" for the \f(CW$class\fR given.  Class names may be fully qualified
or abbreviated, eg:
.PP
.Vb 3
\&  # these are equivalent
\&  $source\->config_for( \*(AqPerl\*(Aq );
\&  $source\->config_for( \*(AqTAP::Parser::SourceHandler::Perl\*(Aq );
.Ve
.PP
If a fully qualified \f(CW$class\fR is given, its abbreviated version is checked first.
.SH "AUTHORS"
.IX Header "AUTHORS"
Steve Purkis.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
TAP::Object,
TAP::Parser,
TAP::Parser::IteratorFactory,
TAP::Parser::SourceHandler