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TAP::Parser::Multiplexer(3perl) Perl Programmers Reference Guide TAP::Parser::Multiplexer(3perl)
NAME
TAP::Parser::Multiplexer - Multiplex multiple TAP::Parsers
VERSION
Version 3.30
SYNOPSIS
use TAP::Parser::Multiplexer;
my $mux = TAP::Parser::Multiplexer->new;
$mux->add( $parser1, $stash1 );
$mux->add( $parser2, $stash2 );
while ( my ( $parser, $stash, $result ) = $mux->next ) {
# do stuff
}
DESCRIPTION
"TAP::Parser::Multiplexer" gathers input from multiple TAP::Parsers. Internally it calls
select on the input file handles for those parsers to wait for one or more of them to have
input available.
See TAP::Harness for an example of its use.
METHODS
Class Methods
"new"
my $mux = TAP::Parser::Multiplexer->new;
Returns a new "TAP::Parser::Multiplexer" object.
Instance Methods
"add"
$mux->add( $parser, $stash );
Add a TAP::Parser to the multiplexer. $stash is an optional opaque reference that will be
returned from "next" along with the parser and the next result.
"parsers"
my $count = $mux->parsers;
Returns the number of parsers. Parsers are removed from the multiplexer when their input
is exhausted.
"next"
Return a result from the next available parser. Returns a list containing the parser from
which the result came, the stash that corresponds with that parser and the result.
my ( $parser, $stash, $result ) = $mux->next;
If $result is undefined the corresponding parser has reached the end of its input (and
will automatically be removed from the multiplexer).
When all parsers are exhausted an empty list will be returned.
if ( my ( $parser, $stash, $result ) = $mux->next ) {
if ( ! defined $result ) {
# End of this parser
}
else {
# Process result
}
}
else {
# All parsers finished
}
See Also
TAP::Parser
TAP::Harness
perl v5.20.2 2014-12-27 TAP::Parser::Multiplexer(3perl)
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