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1124 lines
32 KiB
Perl
1124 lines
32 KiB
Perl
#!/usr/bin/perl -w
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require Exporter;
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package Locale::Po4a::TransTractor;
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use DynaLoader;
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use 5.006;
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use strict;
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use warnings;
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use subs qw(makespace);
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use vars qw($VERSION @ISA @EXPORT);
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$VERSION="0.45";
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@ISA = qw(DynaLoader);
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@EXPORT = qw(new process translate
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read write readpo writepo
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getpoout setpoout get_out_charset);
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# Try to use a C extension if present.
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eval("bootstrap Locale::Po4a::TransTractor $VERSION");
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use Carp qw(croak);
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use Locale::Po4a::Po;
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use Locale::Po4a::Common;
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use File::Path; # mkdir before write
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use Encode;
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use Encode::Guess;
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=encoding UTF-8
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=head1 NAME
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Locale::Po4a::TransTractor - generic trans(lator ex)tractor.
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=head1 DESCRIPTION
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The po4a (PO for anything) project goal is to ease translations (and more
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interestingly, the maintenance of translations) using gettext tools on
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areas where they were not expected like documentation.
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This class is the ancestor of every po4a parser used to parse a document, to
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search translatable strings, to extract them to a PO file and to replace them by
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their translation in the output document.
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More formally, it takes the following arguments as input:
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=over 2
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=item -
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a document to translate;
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=item -
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a PO file containing the translations to use.
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=back
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As output, it produces:
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=over 2
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=item -
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another PO file, resulting of the extraction of translatable strings from
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the input document;
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=item -
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a translated document, with the same structure than the one in input, but
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with all translatable strings replaced with the translations found in the
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PO file provided in input.
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=back
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Here is a graphical representation of this:
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Input document --\ /---> Output document
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\ / (translated)
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+-> parse() function -----+
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/ \
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Input PO --------/ \---> Output PO
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(extracted)
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=head1 FUNCTIONS YOUR PARSER SHOULD OVERRIDE
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=over 4
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=item parse()
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This is where all the work takes place: the parsing of input documents, the
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generation of output, and the extraction of the translatable strings. This
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is pretty simple using the provided functions presented in the section
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B<INTERNAL FUNCTIONS> below. See also the B<SYNOPSIS>, which presents an
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example.
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This function is called by the process() function below, but if you choose
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to use the new() function, and to add content manually to your document,
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you will have to call this function yourself.
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=item docheader()
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This function returns the header we should add to the produced document,
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quoted properly to be a comment in the target language. See the section
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B<Educating developers about translations>, from L<po4a(7)|po4a.7>, for what
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it is good for.
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=back
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=cut
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sub docheader {}
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sub parse {}
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=head1 SYNOPSIS
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The following example parses a list of paragraphs beginning with "<p>". For the sake
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of simplicity, we assume that the document is well formatted, i.e. that '<p>'
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tags are the only tags present, and that this tag is at the very beginning
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of each paragraph.
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sub parse {
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my $self = shift;
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PARAGRAPH: while (1) {
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my ($paragraph,$pararef)=("","");
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my $first=1;
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my ($line,$lref)=$self->shiftline();
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while (defined($line)) {
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if ($line =~ m/<p>/ && !$first--; ) {
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# Not the first time we see <p>.
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# Reput the current line in input,
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# and put the built paragraph to output
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$self->unshiftline($line,$lref);
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# Now that the document is formed, translate it:
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# - Remove the leading tag
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$paragraph =~ s/^<p>//s;
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# - push to output the leading tag (untranslated) and the
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# rest of the paragraph (translated)
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$self->pushline( "<p>"
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. $document->translate($paragraph,$pararef)
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);
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next PARAGRAPH;
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} else {
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# Append to the paragraph
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$paragraph .= $line;
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$pararef = $lref unless(length($pararef));
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}
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# Reinit the loop
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($line,$lref)=$self->shiftline();
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}
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# Did not get a defined line? End of input file.
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return;
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}
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}
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Once you've implemented the parse function, you can use your document
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class, using the public interface presented in the next section.
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=head1 PUBLIC INTERFACE for scripts using your parser
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=head2 Constructor
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=over 4
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=item process(%)
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This function can do all you need to do with a po4a document in one
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invocation. Its arguments must be packed as a hash. ACTIONS:
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=over 3
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=item a.
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Reads all the PO files specified in po_in_name
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=item b.
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Reads all original documents specified in file_in_name
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=item c.
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Parses the document
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=item d.
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Reads and applies all the addenda specified
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=item e.
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Writes the translated document to file_out_name (if given)
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=item f.
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Writes the extracted PO file to po_out_name (if given)
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=back
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ARGUMENTS, beside the ones accepted by new() (with expected type):
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=over 4
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=item file_in_name (@)
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List of filenames where we should read the input document.
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=item file_in_charset ($)
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Charset used in the input document (if it isn't specified, it will try
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to detect it from the input document).
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=item file_out_name ($)
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Filename where we should write the output document.
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=item file_out_charset ($)
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Charset used in the output document (if it isn't specified, it will use
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the PO file charset).
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=item po_in_name (@)
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List of filenames where we should read the input PO files from, containing
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the translation which will be used to translate the document.
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=item po_out_name ($)
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Filename where we should write the output PO file, containing the strings
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extracted from the input document.
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=item addendum (@)
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List of filenames where we should read the addenda from.
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=item addendum_charset ($)
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Charset for the addenda.
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=back
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=item new(%)
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Create a new po4a document. Accepted options (but be in a hash):
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=over 4
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=item verbose ($)
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Sets the verbosity.
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=item debug ($)
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Sets the debugging.
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=back
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=cut
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sub process {
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## Determine if we were called via an object-ref or a classname
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my $self = shift;
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## Any remaining arguments are treated as initial values for the
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## hash that is used to represent this object.
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my %params = @_;
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# Build the args for new()
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my %newparams = ();
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foreach (keys %params) {
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next if ($_ eq 'po_in_name' ||
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$_ eq 'po_out_name' ||
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$_ eq 'file_in_name' ||
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$_ eq 'file_in_charset' ||
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$_ eq 'file_out_name' ||
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$_ eq 'file_out_charset' ||
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$_ eq 'addendum' ||
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$_ eq 'addendum_charset');
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$newparams{$_}=$params{$_};
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}
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$self->detected_charset($params{'file_in_charset'});
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$self->{TT}{'file_out_charset'}=$params{'file_out_charset'};
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if (defined($self->{TT}{'file_out_charset'}) and
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length($self->{TT}{'file_out_charset'})) {
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$self->{TT}{'file_out_encoder'} = find_encoding($self->{TT}{'file_out_charset'});
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}
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$self->{TT}{'addendum_charset'}=$params{'addendum_charset'};
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chdir $params{'srcdir'}
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if (defined $params{'srcdir'});
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foreach my $file (@{$params{'po_in_name'}}) {
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print STDERR "readpo($file)... " if $self->debug();
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$self->readpo($file);
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print STDERR "done.\n" if $self->debug()
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}
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foreach my $file (@{$params{'file_in_name'}}) {
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print STDERR "read($file)..." if $self->debug();
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$self->read($file);
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print STDERR "done.\n" if $self->debug();
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}
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print STDERR "parse..." if $self->debug();
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$self->parse();
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print STDERR "done.\n" if $self->debug();
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foreach my $file (@{$params{'addendum'}}) {
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print STDERR "addendum($file)..." if $self->debug();
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$self->addendum($file) || die "An addendum failed\n";
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print STDERR "done.\n" if $self->debug();
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}
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chdir $params{'destdir'}
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if (defined $params{'destdir'});
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if (defined $params{'file_out_name'}) {
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print STDERR "write(".$params{'file_out_name'}.")... "
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if $self->debug();
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$self->write($params{'file_out_name'});
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print STDERR "done.\n" if $self->debug();
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}
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chdir $params{'srcdir'}
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if (defined $params{'srcdir'});
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if (defined $params{'po_out_name'}) {
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print STDERR "writepo(".$params{'po_out_name'}.")... "
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if $self->debug();
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$self->writepo($params{'po_out_name'});
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print STDERR "done.\n" if $self->debug();
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}
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chdir $params{'calldir'}
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if (defined $params{'calldir'});
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return $self;
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}
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sub new {
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## Determine if we were called via an object-ref or a classname
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my $this = shift;
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my $class = ref($this) || $this;
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my $self = { };
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my %options=@_;
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## Bless ourselves into the desired class and perform any initialization
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bless $self, $class;
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## initialize the plugin
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# prevent the plugin from croaking on the options intended for Po.pm
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$self->{options}{'porefs'} = '';
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$self->{options}{'copyright-holder'} = '';
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$self->{options}{'msgid-bugs-address'} = '';
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$self->{options}{'package-name'} = '';
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$self->{options}{'package-version'} = '';
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# let the plugin parse the options and such
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$self->initialize(%options);
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## Create our private data
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my %po_options;
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$po_options{'porefs'} = $self->{options}{'porefs'};
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$po_options{'copyright-holder'} = $options{'copyright-holder'};
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$po_options{'msgid-bugs-address'} = $options{'msgid-bugs-address'};
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$po_options{'package-name'} = $options{'package-name'};
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$po_options{'package-version'} = $options{'package-version'};
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# private data
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$self->{TT}=();
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$self->{TT}{po_in}=Locale::Po4a::Po->new(\%po_options);
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$self->{TT}{po_out}=Locale::Po4a::Po->new(\%po_options);
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# Warning, this is an array of array:
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# The document is splited on lines, and for each
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# [0] is the line content, [1] is the reference [2] the type
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$self->{TT}{doc_in}=();
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$self->{TT}{doc_out}=();
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if (defined $options{'verbose'}) {
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$self->{TT}{verbose} = $options{'verbose'};
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}
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if (defined $options{'debug'}) {
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$self->{TT}{debug} = $options{'debug'};
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}
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# Input document is in ascii until we prove the opposite (in read())
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$self->{TT}{ascii_input}=1;
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# We try not to use utf unless it's forced from the outside (in case the
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# document isn't in ascii)
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$self->{TT}{utf_mode}=0;
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return $self;
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}
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=back
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=head2 Manipulating document files
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=over 4
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=item read($)
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Add another input document at the end of the existing one. The argument is
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the filename to read.
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Please note that it does not parse anything. You should use the parse()
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function when you're done with packing input files into the document.
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=cut
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#'
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sub read() {
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my $self=shift;
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my $filename=shift
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or croak wrap_msg(dgettext("po4a", "Can't read from file without having a filename"));
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my $linenum=0;
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open INPUT,"<$filename"
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or croak wrap_msg(dgettext("po4a", "Can't read from %s: %s"), $filename, $!);
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while (defined (my $textline = <INPUT>)) {
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$linenum++;
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my $ref="$filename:$linenum";
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$textline =~ s/\r$//;
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my @entry=($textline,$ref);
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push @{$self->{TT}{doc_in}}, @entry;
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if (!defined($self->{TT}{'file_in_charset'})) {
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# Detect if this file has non-ascii characters
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if($self->{TT}{ascii_input}) {
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my $decoder = guess_encoding($textline);
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if (!ref($decoder) or $decoder !~ /Encode::XS=/) {
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# We have detected a non-ascii line
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$self->{TT}{ascii_input} = 0;
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# Save the reference for future error message
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$self->{TT}{non_ascii_ref} ||= $ref;
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}
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}
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}
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}
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close INPUT
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or croak wrap_msg(dgettext("po4a", "Can't close %s after reading: %s"), $filename, $!);
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}
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=item write($)
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Write the translated document to the given filename.
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=cut
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sub write {
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my $self=shift;
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my $filename=shift
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or croak wrap_msg(dgettext("po4a", "Can't write to a file without filename"));
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my $fh;
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if ($filename eq '-') {
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$fh=\*STDOUT;
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} else {
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# make sure the directory in which we should write the localized file exists
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my $dir = $filename;
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if ($dir =~ m|/|) {
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$dir =~ s|/[^/]*$||;
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File::Path::mkpath($dir, 0, 0755) # Croaks on error
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if (length ($dir) && ! -e $dir);
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}
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open $fh,">$filename"
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or croak wrap_msg(dgettext("po4a", "Can't write to %s: %s"), $filename, $!);
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}
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map { print $fh $_ } $self->docheader();
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map { print $fh $_ } @{$self->{TT}{doc_out}};
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if ($filename ne '-') {
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close $fh or croak wrap_msg(dgettext("po4a", "Can't close %s after writing: %s"), $filename, $!);
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}
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}
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=back
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=head2 Manipulating PO files
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=over 4
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=item readpo($)
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Add the content of a file (which name is passed as argument) to the
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existing input PO. The old content is not discarded.
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=item writepo($)
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Write the extracted PO file to the given filename.
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=item stats()
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Returns some statistics about the translation done so far. Please note that
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it's not the same statistics than the one printed by msgfmt
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--statistic. Here, it's stats about recent usage of the PO file, while
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msgfmt reports the status of the file. It is a wrapper to the
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Locale::Po4a::Po::stats_get function applied to the input PO file. Example
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of use:
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[normal use of the po4a document...]
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($percent,$hit,$queries) = $document->stats();
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print "We found translations for $percent\% ($hit from $queries) of strings.\n";
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=back
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=cut
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sub getpoout {
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return $_[0]->{TT}{po_out};
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}
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sub setpoout {
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$_[0]->{TT}{po_out} = $_[1];
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}
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sub readpo {
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$_[0]->{TT}{po_in}->read($_[1]);
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}
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sub writepo {
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$_[0]->{TT}{po_out}->write( $_[1] );
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}
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sub stats {
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return $_[0]->{TT}{po_in}->stats_get();
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}
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=head2 Manipulating addenda
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=over 4
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=item addendum($)
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Please refer to L<po4a(7)|po4a.7> for more information on what addenda are,
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and how translators should write them. To apply an addendum to the translated
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document, simply pass its filename to this function and you are done ;)
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This function returns a non-null integer on error.
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=cut
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# Internal function to read the header.
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sub addendum_parse {
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my ($filename,$header)=shift;
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my ($errcode,$mode,$position,$boundary,$bmode,$content)=
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(1,"","","","","");
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unless (open (INS, "<$filename")) {
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warn wrap_msg(dgettext("po4a", "Can't read from %s: %s"), $filename, $!);
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goto END_PARSE_ADDFILE;
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}
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unless (defined ($header=<INS>) && $header) {
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warn wrap_msg(dgettext("po4a", "Can't read po4a header from %s."), $filename);
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goto END_PARSE_ADDFILE;
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}
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unless ($header =~ s/PO4A-HEADER://i) {
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warn wrap_msg(dgettext("po4a", "First line of %s does not look like a po4a header."), $filename);
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goto END_PARSE_ADDFILE;
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}
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foreach my $part (split(/;/,$header)) {
|
|
unless ($part =~ m/^\s*([^=]*)=(.*)$/) {
|
|
warn wrap_msg(dgettext("po4a", "Syntax error in po4a header of %s, near \"%s\""), $filename, $part);
|
|
goto END_PARSE_ADDFILE;
|
|
}
|
|
my ($key,$value)=($1,$2);
|
|
$key=lc($key);
|
|
if ($key eq 'mode') {
|
|
$mode=lc($value);
|
|
} elsif ($key eq 'position') {
|
|
$position=$value;
|
|
} elsif ($key eq 'endboundary') {
|
|
$boundary=$value;
|
|
$bmode='after';
|
|
} elsif ($key eq 'beginboundary') {
|
|
$boundary=$value;
|
|
$bmode='before';
|
|
} else {
|
|
warn wrap_msg(dgettext("po4a", "Invalid argument in the po4a header of %s: %s"), $filename, $key);
|
|
goto END_PARSE_ADDFILE;
|
|
}
|
|
}
|
|
|
|
unless (length($mode)) {
|
|
warn wrap_msg(dgettext("po4a", "The po4a header of %s does not define the mode."), $filename);
|
|
goto END_PARSE_ADDFILE;
|
|
}
|
|
unless ($mode eq "before" || $mode eq "after") {
|
|
warn wrap_msg(dgettext("po4a", "Mode invalid in the po4a header of %s: should be 'before' or 'after' not %s."), $filename, $mode);
|
|
goto END_PARSE_ADDFILE;
|
|
}
|
|
|
|
unless (length($position)) {
|
|
warn wrap_msg(dgettext("po4a", "The po4a header of %s does not define the position."), $filename);
|
|
goto END_PARSE_ADDFILE;
|
|
}
|
|
unless ($mode eq "before" || length($boundary)) {
|
|
warn wrap_msg(dgettext("po4a", "No ending boundary given in the po4a header, but mode=after."));
|
|
goto END_PARSE_ADDFILE;
|
|
}
|
|
|
|
while (defined(my $line = <INS>)) {
|
|
$content .= $line;
|
|
}
|
|
close INS;
|
|
|
|
$errcode=0;
|
|
END_PARSE_ADDFILE:
|
|
return ($errcode,$mode,$position,$boundary,$bmode,$content);
|
|
}
|
|
|
|
sub mychomp {
|
|
my ($str) = shift;
|
|
chomp($str);
|
|
return $str;
|
|
}
|
|
|
|
sub addendum {
|
|
my ($self,$filename) = @_;
|
|
|
|
print STDERR "Apply addendum $filename..." if $self->debug();
|
|
unless ($filename) {
|
|
warn wrap_msg(dgettext("po4a",
|
|
"Can't apply addendum when not given the filename"));
|
|
return 0;
|
|
}
|
|
die wrap_msg(dgettext("po4a", "Addendum %s does not exist."), $filename)
|
|
unless -e $filename;
|
|
|
|
my ($errcode,$mode,$position,$boundary,$bmode,$content)=
|
|
addendum_parse($filename);
|
|
return 0 if ($errcode);
|
|
|
|
print STDERR "mode=$mode;pos=$position;bound=$boundary;bmode=$bmode;ctn=$content\n"
|
|
if $self->debug();
|
|
|
|
# We only recode the addendum if an origin charset is specified, else we
|
|
# suppose it's already in the output document's charset
|
|
if (defined($self->{TT}{'addendum_charset'}) &&
|
|
length($self->{TT}{'addendum_charset'})) {
|
|
Encode::from_to($content,$self->{TT}{'addendum_charset'},
|
|
$self->get_out_charset);
|
|
}
|
|
|
|
my $found = scalar grep { /$position/ } @{$self->{TT}{doc_out}};
|
|
if ($found == 0) {
|
|
warn wrap_msg(dgettext("po4a",
|
|
"No candidate position for the addendum %s."), $filename);
|
|
return 0;
|
|
}
|
|
if ($found > 1) {
|
|
warn wrap_msg(dgettext("po4a",
|
|
"More than one candidate position found for the addendum %s."), $filename);
|
|
return 0;
|
|
}
|
|
|
|
if ($mode eq "before") {
|
|
if ($self->verbose() > 1 || $self->debug() ) {
|
|
map { print STDERR wrap_msg(dgettext("po4a", "Addendum '%s' applied before this line: %s"), $filename, $_) if (/$position/);
|
|
} @{$self->{TT}{doc_out}};
|
|
}
|
|
@{$self->{TT}{doc_out}} = map { /$position/ ? ($content,$_) : $_
|
|
} @{$self->{TT}{doc_out}};
|
|
} else {
|
|
my @newres=();
|
|
|
|
do {
|
|
# make sure it doesn't whine on empty document
|
|
my $line = scalar @{$self->{TT}{doc_out}} ? shift @{$self->{TT}{doc_out}} : "";
|
|
push @newres,$line;
|
|
my $outline=mychomp($line);
|
|
$outline =~ s/^[ \t]*//;
|
|
|
|
if ($line =~ m/$position/) {
|
|
while ($line=shift @{$self->{TT}{doc_out}}) {
|
|
last if ($line=~/$boundary/);
|
|
push @newres,$line;
|
|
}
|
|
if (defined $line) {
|
|
if ($bmode eq 'before') {
|
|
print wrap_msg(dgettext("po4a",
|
|
"Addendum '%s' applied before this line: %s"),
|
|
$filename, $outline)
|
|
if ($self->verbose() > 1 || $self->debug());
|
|
push @newres,$content;
|
|
push @newres,$line;
|
|
} else {
|
|
print wrap_msg(dgettext("po4a",
|
|
"Addendum '%s' applied after the line: %s."),
|
|
$filename, $outline)
|
|
if ($self->verbose() > 1 || $self->debug());
|
|
push @newres,$line;
|
|
push @newres,$content;
|
|
}
|
|
} else {
|
|
print wrap_msg(dgettext("po4a", "Addendum '%s' applied at the end of the file."), $filename)
|
|
if ($self->verbose() > 1 || $self->debug());
|
|
push @newres,$content;
|
|
}
|
|
}
|
|
} while (scalar @{$self->{TT}{doc_out}});
|
|
@{$self->{TT}{doc_out}} = @newres;
|
|
}
|
|
print STDERR "done.\n" if $self->debug();
|
|
return 1;
|
|
}
|
|
|
|
=back
|
|
|
|
=head1 INTERNAL FUNCTIONS used to write derivated parsers
|
|
|
|
=head2 Getting input, providing output
|
|
|
|
Four functions are provided to get input and return output. They are very
|
|
similar to shift/unshift and push/pop. The first pair is about input, while
|
|
the second is about output. Mnemonic: in input, you are interested in the
|
|
first line, what shift gives, and in output you want to add your result at
|
|
the end, like push does.
|
|
|
|
=over 4
|
|
|
|
=item shiftline()
|
|
|
|
This function returns the next line of the doc_in to be parsed and its
|
|
reference (packed as an array).
|
|
|
|
=item unshiftline($$)
|
|
|
|
Unshifts a line of the input document and its reference.
|
|
|
|
=item pushline($)
|
|
|
|
Push a new line to the doc_out.
|
|
|
|
=item popline()
|
|
|
|
Pop the last pushed line from the doc_out.
|
|
|
|
=back
|
|
|
|
=cut
|
|
|
|
sub shiftline {
|
|
my ($line,$ref)=(shift @{$_[0]->{TT}{doc_in}},
|
|
shift @{$_[0]->{TT}{doc_in}});
|
|
return ($line,$ref);
|
|
}
|
|
sub unshiftline {
|
|
my $self = shift;
|
|
unshift @{$self->{TT}{doc_in}},@_;
|
|
}
|
|
|
|
sub pushline { push @{$_[0]->{TT}{doc_out}}, $_[1] if defined $_[1]; }
|
|
sub popline { return pop @{$_[0]->{TT}{doc_out}}; }
|
|
|
|
=head2 Marking strings as translatable
|
|
|
|
One function is provided to handle the text which should be translated.
|
|
|
|
=over 4
|
|
|
|
=item translate($$$)
|
|
|
|
Mandatory arguments:
|
|
|
|
=over 2
|
|
|
|
=item -
|
|
|
|
A string to translate
|
|
|
|
=item -
|
|
|
|
The reference of this string (i.e. position in inputfile)
|
|
|
|
=item -
|
|
|
|
The type of this string (i.e. the textual description of its structural role;
|
|
used in Locale::Po4a::Po::gettextization(); see also L<po4a(7)|po4a.7>,
|
|
section B<Gettextization: how does it work?>)
|
|
|
|
=back
|
|
|
|
This function can also take some extra arguments. They must be organized as
|
|
a hash. For example:
|
|
|
|
$self->translate("string","ref","type",
|
|
'wrap' => 1);
|
|
|
|
=over
|
|
|
|
=item B<wrap>
|
|
|
|
boolean indicating whether we can consider that whitespaces in string are
|
|
not important. If yes, the function canonizes the string before looking for
|
|
a translation or extracting it, and wraps the translation.
|
|
|
|
=item B<wrapcol>
|
|
|
|
the column at which we should wrap (default: 76).
|
|
|
|
=item B<comment>
|
|
|
|
an extra comment to add to the entry.
|
|
|
|
=back
|
|
|
|
Actions:
|
|
|
|
=over 2
|
|
|
|
=item -
|
|
|
|
Pushes the string, reference and type to po_out.
|
|
|
|
=item -
|
|
|
|
Returns the translation of the string (as found in po_in) so that the
|
|
parser can build the doc_out.
|
|
|
|
=item -
|
|
|
|
Handles the charsets to recode the strings before sending them to
|
|
po_out and before returning the translations.
|
|
|
|
=back
|
|
|
|
=back
|
|
|
|
=cut
|
|
|
|
sub translate {
|
|
my $self=shift;
|
|
my ($string,$ref,$type)=(shift,shift,shift);
|
|
my (%options)=@_;
|
|
|
|
# my $validoption="wrap wrapcol";
|
|
# my %validoption;
|
|
|
|
return "" unless defined($string) && length($string);
|
|
|
|
# map { $validoption{$_}=1 } (split(/ /,$validoption));
|
|
# foreach (keys %options) {
|
|
# Carp::confess "internal error: translate() called with unknown arg $_. Valid options: $validoption"
|
|
# unless $validoption{$_};
|
|
# }
|
|
|
|
my $in_charset;
|
|
if ($self->{TT}{ascii_input}) {
|
|
$in_charset = "ascii";
|
|
} else {
|
|
if (defined($self->{TT}{'file_in_charset'}) and
|
|
length($self->{TT}{'file_in_charset'}) and
|
|
$self->{TT}{'file_in_charset'} !~ m/ascii/i) {
|
|
$in_charset=$self->{TT}{'file_in_charset'};
|
|
} else {
|
|
# FYI, the document charset have to be determined *before* we see the first
|
|
# string to recode.
|
|
die wrap_mod("po4a", dgettext("po4a", "Couldn't determine the input document's charset. Please specify it on the command line. (non-ASCII char at %s)"), $self->{TT}{non_ascii_ref})
|
|
}
|
|
}
|
|
|
|
if ($self->{TT}{po_in}->get_charset ne "CHARSET") {
|
|
$string = encode_from_to($string,
|
|
$self->{TT}{'file_in_encoder'},
|
|
$self->{TT}{po_in}{encoder});
|
|
}
|
|
|
|
if (defined $options{'wrapcol'} && $options{'wrapcol'} < 0) {
|
|
# FIXME: should be the parameter given with --width
|
|
$options{'wrapcol'} = 76 + $options{'wrapcol'};
|
|
}
|
|
my $transstring = $self->{TT}{po_in}->gettext($string,
|
|
'wrap' => $options{'wrap'}||0,
|
|
'wrapcol' => $options{'wrapcol'});
|
|
|
|
if ($self->{TT}{po_in}->get_charset ne "CHARSET") {
|
|
my $out_encoder = $self->{TT}{'file_out_encoder'};
|
|
unless (defined $out_encoder) {
|
|
$out_encoder = find_encoding($self->get_out_charset)
|
|
}
|
|
$transstring = encode_from_to($transstring,
|
|
$self->{TT}{po_in}{encoder},
|
|
$out_encoder);
|
|
}
|
|
|
|
# If the input document isn't completely in ascii, we should see what to
|
|
# do with the current string
|
|
unless ($self->{TT}{ascii_input}) {
|
|
my $out_charset = $self->{TT}{po_out}->get_charset;
|
|
# We set the output po charset
|
|
if ($out_charset eq "CHARSET") {
|
|
if ($self->{TT}{utf_mode}) {
|
|
$out_charset="UTF-8";
|
|
} else {
|
|
$out_charset=$in_charset;
|
|
}
|
|
$self->{TT}{po_out}->set_charset($out_charset);
|
|
}
|
|
if ( $in_charset !~ /^$out_charset$/i ) {
|
|
Encode::from_to($string,$in_charset,$out_charset);
|
|
if (defined($options{'comment'}) and length($options{'comment'})) {
|
|
Encode::from_to($options{'comment'},$in_charset,$out_charset);
|
|
}
|
|
}
|
|
}
|
|
|
|
# the comments provided by the modules are automatic comments from the PO point of view
|
|
$self->{TT}{po_out}->push('msgid' => $string,
|
|
'reference' => $ref,
|
|
'type' => $type,
|
|
'automatic' => $options{'comment'},
|
|
'wrap' => $options{'wrap'}||0,
|
|
'wrapcol' => $options{'wrapcol'});
|
|
|
|
# if ($self->{TT}{po_in}->get_charset ne "CHARSET") {
|
|
# Encode::from_to($transstring,$self->{TT}{po_in}->get_charset,
|
|
# $self->get_out_charset);
|
|
# }
|
|
|
|
if ($options{'wrap'}||0) {
|
|
$transstring =~ s/( *)$//s;
|
|
my $trailing_spaces = $1||"";
|
|
$transstring =~ s/(?<!\\) +$//gm;
|
|
$transstring .= $trailing_spaces;
|
|
}
|
|
|
|
return $transstring;
|
|
}
|
|
|
|
=head2 Misc functions
|
|
|
|
=over 4
|
|
|
|
=item verbose()
|
|
|
|
Returns if the verbose option was passed during the creation of the
|
|
TransTractor.
|
|
|
|
=cut
|
|
|
|
sub verbose {
|
|
if (defined $_[1]) {
|
|
$_[0]->{TT}{verbose} = $_[1];
|
|
} else {
|
|
return $_[0]->{TT}{verbose} || 0; # undef and 0 have the same meaning, but one generates warnings
|
|
}
|
|
}
|
|
|
|
=item debug()
|
|
|
|
Returns if the debug option was passed during the creation of the
|
|
TransTractor.
|
|
|
|
=cut
|
|
|
|
sub debug {
|
|
return $_[0]->{TT}{debug};
|
|
}
|
|
|
|
=item detected_charset($)
|
|
|
|
This tells TransTractor that a new charset (the first argument) has been
|
|
detected from the input document. It can usually be read from the document
|
|
header. Only the first charset will remain, coming either from the
|
|
process() arguments or detected from the document.
|
|
|
|
=cut
|
|
|
|
sub detected_charset {
|
|
my ($self,$charset)=(shift,shift);
|
|
unless (defined($self->{TT}{'file_in_charset'}) and
|
|
length($self->{TT}{'file_in_charset'}) ) {
|
|
$self->{TT}{'file_in_charset'}=$charset;
|
|
if (defined $charset) {
|
|
$self->{TT}{'file_in_encoder'}=find_encoding($charset);
|
|
} else {
|
|
$self->{TT}{ascii_input}=1;
|
|
$self->{TT}{utf_mode}=0;
|
|
}
|
|
}
|
|
|
|
if (defined $self->{TT}{'file_in_charset'} and
|
|
length $self->{TT}{'file_in_charset'} and
|
|
$self->{TT}{'file_in_charset'} !~ m/ascii/i) {
|
|
$self->{TT}{ascii_input}=0;
|
|
}
|
|
}
|
|
|
|
=item get_out_charset()
|
|
|
|
This function will return the charset that should be used in the output
|
|
document (usually useful to substitute the input document's detected charset
|
|
where it has been found).
|
|
|
|
It will use the output charset specified in the command line. If it wasn't
|
|
specified, it will use the input PO's charset, and if the input PO has the
|
|
default "CHARSET", it will return the input document's charset, so that no
|
|
encoding is performed.
|
|
|
|
=cut
|
|
|
|
sub get_out_charset {
|
|
my $self=shift;
|
|
my $charset;
|
|
|
|
# Use the value specified at the command line
|
|
if (defined($self->{TT}{'file_out_charset'}) and
|
|
length($self->{TT}{'file_out_charset'})) {
|
|
$charset=$self->{TT}{'file_out_charset'};
|
|
} else {
|
|
if ($self->{TT}{utf_mode} && $self->{TT}{ascii_input}) {
|
|
$charset="UTF-8";
|
|
} else {
|
|
$charset=$self->{TT}{po_in}->get_charset;
|
|
$charset=$self->{TT}{'file_in_charset'}
|
|
if $charset eq "CHARSET" and
|
|
defined($self->{TT}{'file_in_charset'}) and
|
|
length($self->{TT}{'file_in_charset'});
|
|
$charset="ascii"
|
|
if $charset eq "CHARSET";
|
|
}
|
|
}
|
|
return $charset;
|
|
}
|
|
|
|
=item recode_skipped_text($)
|
|
|
|
This function returns the recoded text passed as argument, from the input
|
|
document's charset to the output document's one. This isn't needed when
|
|
translating a string (translate() recodes everything itself), but it is when
|
|
you skip a string from the input document and you want the output document to
|
|
be consistent with the global encoding.
|
|
|
|
=cut
|
|
|
|
sub recode_skipped_text {
|
|
my ($self,$text)=(shift,shift);
|
|
unless ($self->{TT}{'ascii_input'}) {
|
|
if(defined($self->{TT}{'file_in_charset'}) and
|
|
length($self->{TT}{'file_in_charset'}) ) {
|
|
$text = encode_from_to($text,
|
|
$self->{TT}{'file_in_encoder'},
|
|
find_encoding($self->get_out_charset));
|
|
} else {
|
|
die wrap_mod("po4a", dgettext("po4a", "Couldn't determine the input document's charset. Please specify it on the command line. (non-ASCII char at %s)"), $self->{TT}{non_ascii_ref})
|
|
}
|
|
}
|
|
return $text;
|
|
}
|
|
|
|
|
|
# encode_from_to($,$,$)
|
|
#
|
|
# Encode the given text from one encoding to another one.
|
|
# It differs from Encode::from_to because it does not take the name of the
|
|
# encoding in argument, but the encoders (as returned by the
|
|
# Encode::find_encoding(<name>) method). Thus it permits to save a bunch
|
|
# of call to find_encoding.
|
|
#
|
|
# If the "from" encoding is undefined, it is considered as UTF-8 (or
|
|
# ascii).
|
|
# If the "to" encoding is undefined, it is considered as UTF-8.
|
|
#
|
|
sub encode_from_to {
|
|
my ($text,$from,$to) = (shift,shift,shift);
|
|
|
|
if (not defined $from) {
|
|
# for ascii and UTF-8, no conversion needed to get an utf-8
|
|
# string.
|
|
} else {
|
|
$text = $from->decode($text, 0);
|
|
}
|
|
|
|
if (not defined $to) {
|
|
# Already in UTF-8, no conversion needed
|
|
} else {
|
|
$text = $to->encode($text, 0);
|
|
}
|
|
|
|
return $text;
|
|
}
|
|
|
|
=back
|
|
|
|
=head1 FUTURE DIRECTIONS
|
|
|
|
One shortcoming of the current TransTractor is that it can't handle
|
|
translated document containing all languages, like debconf templates, or
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.desktop files.
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To address this problem, the only interface changes needed are:
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=over 2
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=item -
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take a hash as po_in_name (a list per language)
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=item -
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add an argument to translate to indicate the target language
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=item -
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make a pushline_all function, which would make pushline of its content for
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all language, using a map-like syntax:
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$self->pushline_all({ "Description[".$langcode."]=".
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$self->translate($line,$ref,$langcode)
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});
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=back
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Will see if it's enough ;)
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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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Jordi Vilalta <jvprat@gmail.com>
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=cut
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1;
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