mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
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324 lines
9.4 KiB
Perl
324 lines
9.4 KiB
Perl
# Locale::Po4a::Pod -- Convert POD data to PO file, for translation.
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#
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# This program is free software; you may redistribute it and/or modify it
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# under the terms of GPL (see COPYING file).
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#
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# This module converts POD to PO file, so that it becomes possible to
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# translate POD formatted documentation. See gettext documentation for
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# more info about PO files.
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############################################################################
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# Modules and declarations
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############################################################################
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use Pod::Parser;
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use Locale::Po4a::TransTractor qw(process new get_out_charset);
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package Locale::Po4a::Pod;
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use 5.006;
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use strict;
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use warnings;
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require Exporter;
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use vars qw(@ISA);
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@ISA = qw(Locale::Po4a::TransTractor Pod::Parser);
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sub initialize {}
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sub translate {
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my ($self,$str,$ref,$type) = @_;
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my (%options)=@_;
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$str = $self->pre_trans($str,$ref,$type);
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$str = $self->SUPER::translate($str, $ref, $type, %options);
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$str = $self->post_trans($str,$ref,$type);
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return $str;
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}
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sub pre_trans {
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my ($self,$str,$ref,$type)=@_;
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return $str;
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}
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sub post_trans {
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my ($self,$str,$ref,$type)=@_;
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# Change ascii non-breaking space to POD one
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my $nbs_out = "\xA0";
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my $enc_length = Encode::from_to($nbs_out, "latin1",
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$self->get_out_charset);
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if (defined $enc_length) {
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while ($str =~ m/(^|.*\s)(\S+?)\Q$nbs_out\E(\S+?)(\s.*$|$)/s) {
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my ($begin, $m1, $m2, $end) = ($1, $2, $3, $4);
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$str = (defined $begin)?$begin:"";
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# Remove the non-breaking spaces in the string that will be
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# between S<...>
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$m2 =~ s/\Q$nbs_out\E/ /g;
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$str .= "S<$m1 $m2>";
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$str .= (defined $end)?$end:"";
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}
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}
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return $str;
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}
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sub command {
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my ($self, $command, $paragraph, $line_num) = @_;
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# print STDOUT "cmd: '$command' '$paragraph' at $line_num\n";
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if ($command eq 'back'
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|| $command eq 'cut'
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|| $command eq 'pod') {
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$self->pushline("=$command\n\n");
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} elsif ($command eq 'over') {
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$self->pushline("=$command $paragraph".(length($paragraph)?"":"\n\n"));
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} elsif ($command eq 'encoding') {
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my $charset = $paragraph;
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$charset =~ s/^\s*(.*?)\s*$/$1/s;
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$self->detected_charset($charset)
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# The =encoding line will be added by docheader
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} else {
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$paragraph=$self->translate($paragraph,
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$self->input_file().":$line_num",
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"=$command",
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"wrap"=>1);
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$self->pushline("=$command $paragraph\n\n");
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}
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}
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sub verbatim {
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my ($self, $paragraph, $line_num) = @_;
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# print "verb: '$paragraph' at $line_num\n";
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if ($paragraph eq "\n") {
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$self->pushline("$paragraph\n");
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return;
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}
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$paragraph=$self->translate($paragraph,
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$self->input_file().":$line_num",
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"verbatim");
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$paragraph =~ s/\n$//m;
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$self->pushline("$paragraph\n");
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}
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sub textblock {
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my ($self, $paragraph, $line_num) = @_;
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# print "text: '$paragraph' at $line_num\n";
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# Fix a pretty damned bug.
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# Podlators don't wrap explicitelly the text, and groff won't seem to
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# wrap any line begining with a space. So, we have to consider as
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# verbatim not only the paragraphs whose first line is indented, but
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# the paragraph containing an indented line.
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# That way, we'll declare more paragraphs as verbatim than needed, but
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# that's harmless (only less confortable for translators).
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if ($paragraph eq "\n") {
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$self->pushline("$paragraph\n");
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return;
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}
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if ($paragraph =~ m/^[ \t]/m) {
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$self->verbatim($paragraph, $line_num) ;
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return;
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}
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$paragraph=$self->translate($paragraph,
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$self->input_file().":$line_num",
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'textblock',
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"wrap"=>1);
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$paragraph=~ s/ +\n/\n/gm;
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$self->pushline("$paragraph\n\n");
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}
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sub end_pod {}
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sub read {
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my ($self,$filename)=@_;
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push @{$self->{DOCPOD}{infile}}, $filename;
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$self->Locale::Po4a::TransTractor::read($filename);
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}
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sub parse {
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my $self=shift;
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map {$self->parse_from_file($_)} @{$self->{DOCPOD}{infile}};
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}
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sub docheader {
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my $self=shift;
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my $encoding = $self->get_out_charset();
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if ( (defined $encoding)
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and (length $encoding)
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and ($encoding ne "ascii")) {
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$encoding = "\n=encoding $encoding\n";
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} else {
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$encoding = "";
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}
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return <<EOT;
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*****************************************************
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* GENERATED FILE, DO NOT EDIT *
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* THIS IS NO SOURCE FILE, BUT RESULT OF COMPILATION *
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*****************************************************
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This file was generated by po4a(7). Do not store it (in VCS, for example),
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but store the PO file used as source file by po4a-translate.
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In fact, consider this as a binary, and the PO file as a regular .c file:
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If the PO get lost, keeping this translation up-to-date will be harder.
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$encoding
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EOT
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}
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1;
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##############################################################################
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# Module return value and documentation
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##############################################################################
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1;
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__END__
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=encoding UTF-8
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=head1 NAME
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Locale::Po4a::Pod - convert POD data from/to PO files
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=head1 SYNOPSIS
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use Locale::Po4a::Pod;
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my $parser = Locale::Po4a::Pod->new (sentence => 0, width => 78);
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# Read POD from STDIN and write to STDOUT.
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$parser->parse_from_filehandle;
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# Read POD from file.pod and write to file.txt.
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$parser->parse_from_file ('file.pod', 'file.txt');
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=head1 DESCRIPTION
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Locale::Po4a::Pod is a module to help the translation of documentation in
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the POD format (the preferred language for documenting Perl) into other
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[human] languages.
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=head1 STATUS OF THIS MODULE
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I think that this module is rock stable, and there is only one known bug
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with F</usr/lib/perl5/Tk/MainWindow.pod> (and some other
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pages, see below) which contains:
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C<" #n">
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Lack of luck, in the po4a version, this was split on the space by the
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wrapping. As result, in the original version, the man page contains
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" #n"
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and mine contains
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"" #n""
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which is logic since CE<lt>foobarE<gt> is rewritten "foobar".
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Complete list of pages having this problem on my box (from 564 pages; note
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that it depends on the chosen wrapping column):
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/usr/lib/perl5/Tk/MainWindow.pod
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/usr/share/perl/5.8.0/overload.pod
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/usr/share/perl/5.8.0/pod/perlapi.pod
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/usr/share/perl/5.8.0/pod/perldelta.pod
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/usr/share/perl/5.8.0/pod/perlfaq5.pod
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/usr/share/perl/5.8.0/pod/perlpod.pod
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/usr/share/perl/5.8.0/pod/perlre.pod
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/usr/share/perl/5.8.0/pod/perlretut.pod
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=head1 INTERNALS
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As a derived class from Pod::Parser, Locale::Po4a::Pod supports the same
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methods and interfaces. See L<Pod::Parser> for all the details; briefly,
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one creates a new parser with C<< Locale::Po4a::Pod->new() >> and then
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calls either parse_from_filehandle() or parse_from_file().
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new() can take options, in the form of key/value pairs, that control the
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behavior of the parser. The recognized options common to all Pod::Parser
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children are:
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=over 4
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=item B<alt>
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If set to a true value, selects an alternate output format that, among other
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things, uses a different heading style and marks B<=item> entries with a
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colon in the left margin. Defaults to false.
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=item B<code>
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If set to a true value, the non-POD parts of the input file will be included
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in the output. Useful for viewing code documented with POD blocks with the
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POD rendered and the code left intact.
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=item B<indent>
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The number of spaces to indent regular text, and the default indentation for
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B<=over> blocks. Defaults to 4.
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=item B<loose>
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If set to a true value, a blank line is printed after a B<=head1> heading.
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If set to false (the default), no blank line is printed after B<=head1>,
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although one is still printed after B<=head2>. This is the default because
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it's the expected formatting for manual pages; if you're formatting
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arbitrary text documents, setting this to true may result in more pleasing
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output.
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=item B<quotes>
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Sets the quote marks used to surround CE<lt>> text. If the value is a
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single character, it is used as both the left and right quote; if it is two
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characters, the first character is used as the left quote and the second as
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the right quote; and if it is four characters, the first two are used as
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the left quote and the second two as the right quote.
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This may also be set to the special value B<none>, in which case no quote
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marks are added around CE<lt>> text.
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=item B<sentence>
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If set to a true value, Locale::Po4a::Pod will assume that each sentence
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ends in two spaces, and will try to preserve that spacing. If set to
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false, all consecutive whitespace in non-verbatim paragraphs is compressed
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into a single space. Defaults to true.
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=item B<width>
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The column at which to wrap text on the right-hand side. Defaults to 76.
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=back
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=head1 SEE ALSO
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L<Pod::Parser>,
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L<Locale::Po4a::Man(3pm)>,
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L<Locale::Po4a::TransTractor(3pm)>,
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L<po4a(7)|po4a.7>
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=head1 AUTHORS
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Denis Barbier <barbier@linuxfr.org>
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Martin Quinson (mquinson#debian.org)
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=head1 COPYRIGHT AND LICENSE
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Copyright 2002 by SPI, inc.
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This program is free software; you may redistribute it and/or modify it
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under the terms of GPL (see the COPYING file).
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=cut
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