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.\"
.IX Title "Summarize 3pm"
.TH Summarize 3pm "2021-02-09" "perl v5.32.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
XMLTV::Summarize \- Perl extension to summarize XMLTV data
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&    # First get some data from the XMLTV module, eg:
\&    use XMLTV;
\&    my $data = XMLTV::parsefile(\*(Aqtv_sorted.xml\*(Aq);
\&    my ($encoding, $credits, $ch, $progs) = @$data;
\&
\&    # Now turn the sorted programmes into a printable summary.
\&    use XMLTV::Summarize qw(summarize);
\&    foreach (summarize($ch, $progs)) {
\&        if (not ref) {
\&            print "\enDay: $_\en\en";
\&        }
\&        else {
\&            my ($start, $stop, $title, $sub_title, $channel) = @$_;
\&            print "programme starts at $start, ";
\&            print "stops at $stop, " if defined $stop;
\&            print "has title $title ";
\&            print "and episode title $sub_title" if defined $sub_title;
\&            print ", on channel $channel.\en";
\&        }
\&    }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module processes programme and channel data from the \s-1XMLTV\s0 module
to help produce a human-readable summary or \s-1TV\s0 guide.  It takes care
of choosing the correct language (based on the \s-1LANG\s0 environment
variable) and of looking up the name of channels from their id.
.PP
There is one public routine, \f(CW\*(C`summarize()\*(C'\fR.  This takes (references
to) a channels hash and a programmes list, the same format as those
returned by the \s-1XMLTV\s0 module.  It returns a list of 'summary' elements
where each element is a list of five items: start time, stop time,
title, 'sub\-title', and channel name.  The stop time and sub-title may
be undef.
.PP
The times are formatted as hh:mm, with a timezone appended when the
timezone changes in the middle of listings.  For the titles and
channel name, the shortest string that is in an acceptable language is
chosen.
.PP
The list of acceptable languages normally contains just one element,
taken from \s-1LANG,\s0 but you can set it manually as
\&\f(CW@XMLTV::Summarize::PREF_LANGS\fR if wished.
.SH "AUTHOR"
.IX Header "AUTHOR"
Ed Avis, ed@membled.com
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\s-1\fBXMLTV\s0\fR\|(1).