.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is turned on, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{
.    if \nF \{
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "TAP::Parser::Multiplexer 3"
.TH TAP::Parser::Multiplexer 3 "2018-03-19" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
TAP::Parser::Multiplexer \- Multiplex multiple TAP::Parsers
.SH "VERSION"
.IX Header "VERSION"
Version 3.42
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    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
\&    }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`TAP::Parser::Multiplexer\*(C'\fR 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.
.PP
See TAP::Harness for an example of its use.
.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 $mux = TAP::Parser::Multiplexer\->new;
.Ve
.PP
Returns a new \f(CW\*(C`TAP::Parser::Multiplexer\*(C'\fR object.
.SS "Instance Methods"
.IX Subsection "Instance Methods"
\fI\f(CI\*(C`add\*(C'\fI\fR
.IX Subsection "add"
.PP
.Vb 1
\&  $mux\->add( $parser, $stash );
.Ve
.PP
Add a TAP::Parser to the multiplexer. \f(CW$stash\fR is an optional opaque
reference that will be returned from \f(CW\*(C`next\*(C'\fR along with the parser and
the next result.
.PP
\fI\f(CI\*(C`parsers\*(C'\fI\fR
.IX Subsection "parsers"
.PP
.Vb 1
\&  my $count   = $mux\->parsers;
.Ve
.PP
Returns the number of parsers. Parsers are removed from the multiplexer
when their input is exhausted.
.PP
\fI\f(CI\*(C`next\*(C'\fI\fR
.IX Subsection "next"
.PP
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.
.PP
.Vb 1
\&    my ( $parser, $stash, $result ) = $mux\->next;
.Ve
.PP
If \f(CW$result\fR is undefined the corresponding parser has reached the end
of its input (and will automatically be removed from the multiplexer).
.PP
When all parsers are exhausted an empty list will be returned.
.PP
.Vb 11
\&    if ( my ( $parser, $stash, $result ) = $mux\->next ) {
\&        if ( ! defined $result ) {
\&            # End of this parser
\&        }
\&        else {
\&            # Process result
\&        }
\&    }
\&    else {
\&        # All parsers finished
\&    }
.Ve
.SH "See Also"
.IX Header "See Also"
TAP::Parser
.PP
TAP::Harness