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|
#! /usr/bin/env perl
### TODO: other copyrights, license?
# Copyright (c) 2004 Richard Evans <rich@ridas.com>
sub usage
{
warn <<"EOF";
extractrc [flags] filenames
This script extracts messages from designer (.ui) and XMLGUI (.rc) files and
writes on standard output (usually redirected to rc.cpp) the equivalent
i18n() calls so that xgettext can parse them.
--tag=name : Also extract the tag name(s). Repeat the flag to specify
multiple names: --tag=tag_one --tag=tag_two
--tag-group=group : Use a group of tags - uses 'default' if omitted.
Valid groups are: @{[TAG_GROUPS()]}
--context=name : Give i18n calls a context name: i18n("name", ...)
--lines : Include source line numbers in comments (deprecated, it is switched on by default now)
--help|? : Display this summary
EOF
exit;
}
###########################################################################################
use strict;
use warnings;
use Getopt::Long;
use constant TAG_GROUP =>
{
default => "[tT][eE][xX][tT]|title|string|whatsthis|tooltip|label",
koffice => "Example|GroupName|Text|Comment|Syntax|TypeName",
none => "",
};
use constant TAG_GROUPS => join ", ", map "'$_'", sort keys %{&TAG_GROUP};
###########################################################################################
# Add options here as necessary - perldoc Getopt::Long for details on GetOptions
GetOptions ( "tag=s" => \my @opt_extra_tags,
"tag-group=s" => \my $opt_tag_group,
"context=s" => \my $opt_context, # I18N context
"lines" => \my $opt_lines,
"help|?" => \&usage );
unless( @ARGV )
{
warn "No filename specified";
exit;
}
$opt_tag_group ||= "default";
die "Unknown tag group: '$opt_tag_group', should be one of " . TAG_GROUPS
unless exists TAG_GROUP->{$opt_tag_group};
my $tags = TAG_GROUP->{$opt_tag_group};
my $extra_tags = join "", map "|" . quotemeta, @opt_extra_tags;
my $text_string = qr/($tags$extra_tags)( [^>]*)?>/; # Precompile regexp
###########################################################################################
# Program start proper - NB $. is the current line number
for my $file_name ( @ARGV )
{
my $fh;
unless ( open $fh, "<", $file_name )
{
# warn "Failed to open: '$file_name': $!";
next;
}
my $string = "";
my $in_text = 0;
my $start_line_no = 0;
my $in_skipped_prop = 0;
my $tag = "";
my $attr = "";
my $context = "";
while ( <$fh> )
{
last if $. == 1 and $_ !~ /^(?:<!DOCTYPE|<\?xml|<!--)/;
chomp;
$string .= "\n" . $_;
# 'database', 'associations' properties contain strings that shouldn't be translated
if ( $in_skipped_prop == 0 and $string =~ /<property name=\"(?:database|associations|populationText)\"/ )
{
$in_skipped_prop = 1;
}
elsif ( $in_skipped_prop and $string =~ /<\/property/ )
{
$string = "";
$in_skipped_prop = 0;
}
$context = $opt_context;
unless ( $in_skipped_prop or $in_text )
{
if ( ($tag, $attr) = $string =~ /<$text_string/o )
{
($attr) = $attr =~ /\w*context=\"([^\"]*)\"/ if $attr;
$context = $attr if $attr;
$string =~ s/^.*<$text_string//so;
$in_text = 1;
$start_line_no = $.;
}
else
{
$string = "";
}
}
next unless $in_text;
next unless $string =~ /<\/$text_string/o;
my $text = $string;
$text =~ s/<\/$text_string.*$//o;
$text =~ s/</</g;
$text =~ s/>/>/g;
$text =~ s/&/&/g;
# We need to escape characters exactly like uic does it:
$text =~ s/\\/\\\\/g; # escape \
$text =~ s/\"/\\\"/g; # escape "
$text =~ s/\r//g; # remove CR (Carriage Return)
$text =~ s/\n/\\n\"\n\"/g; # escape LF (Line Feed). uic also change the code line at a LF, we do not do that.
if ( $text cmp "" )
{
print "//i18n: file $file_name line $.\n";
print "// xgettext: no-c-format\n";
print q|i18n("|;
print qq|$context","| if $context; # We have a I18N context
print qq|$text");\n|;
}
else
{
#print "// Skipped empty message at $file_name line $.\n";
# - seems this comment may confuse old custom xgettext of KDE3; not needed anyway
}
$string =~ s/^.*<\/$text_string//o;
$in_text = 0;
# Text can be multiline in .ui files (possibly), but we warn about it in XMLGUI .rc files.
warn "there is <text> floating in: '$file_name'" if $. != $start_line_no and $file_name =~ /\.rc$/i;
}
close $fh or warn "Failed to close: '$file_name': $!";
die "parsing error in $file_name" if $in_text;
}
|
