source: trunk/bin/findtr@ 432

#!/usr/bin/perl -w
# vi:wrap:

# See Qt I18N documentation for usage information.

use POSIX qw(strftime);

$projectid='PROJECT VERSION';
$datetime = strftime "%Y-%m-%d %X %Z", localtime;
$charset='iso-8859-1';
$translator='FULLNAME <EMAIL@ADDRESS>';
$revision_date='YYYY-MM-DD';

$real_mark = "tr";
$noop_mark = "QT_TR_NOOP";
$scoped_mark = "qApp->translate";
$noop_scoped_mark = "QT_TRANSLATE_NOOP";

$header=
'# This is a Qt message file in .po format.  Each msgid starts with
# a scope.  This scope should *NOT* be translated - eg. translating
# from French to English, "Foo::Bar" would be translated to "Pub",
# not "Foo::Pub".
msgid ""
msgstr ""
"Project-Id-Version: '.$projectid.'\n"
"POT-Creation-Date: '.$datetime.'\n"
"PO-Revision-Date: '.$revision_date.'\n"
"Last-Translator: '.$translator.'\n"
"Content-Type: text/plain; charset='.$charset.'\n"

';




$scope = "";

if ( $#ARGV < 0 ) {
    print STDERR "Usage:  findtr sourcefile ...  >project.po\n";
    exit 1;
}


sub outmsg {
    my ($file, $line, $scope, $msgid) = @_;
    # unesc
    $msgid =~ s/$esc:$esc:$esc/::/gs;
    $msgid =~ s|$esc/$esc/$esc|//|gs;

    # Remove blank lines
    $msgid =~ s/\n\n+/\n/gs;
    $msgid = "\"\"\n$msgid" if $msgid =~ /\n/s;
    print "#: $file:$line\n";
    $msgid =~ s/^"//; #"emacs bug
    print "msgid \"${scope}::$msgid\n";
    #print "msgstr \"$msgid\n";
    print "msgstr \"\"\n";
    print "\n";
}

sub justlines {
    my $l = @_;
    $l =~ tr|\n||dc;
    return $l;
}

print $header;


foreach $file ( @ARGV ) {
    next unless open( I, "< $file" );

    $source = join( "", <I> );

    # Find esc. Avoid bad case 1/// -> 1/1/1/1 -> ///1
    $esc = 1;
    while ( $source =~ m!(?:$esc/$esc/$esc)|(?:$esc///)
            |(?:$esc:$esc:$esc)|(?:$esc:\:\:)! ) {
        $esc++;
    }

    # Hide quoted :: in practically all strings
    $source =~ s/\"([^"\n]*)::([^"\n]*)\"/\"$1$esc:$esc:$esc$2\"/g;

    # Hide quoted // in practically all strings
    $source =~ s|\"([^"\n]*)//([^"\n]*)\"|\"$1$esc/$esc/$esc$2\"|g;


    # strip comments -- does not handle "/*" in strings
    while( $source =~ s|/\*(.*?)\*/|justlines($1)|ges ) { }
    while( $source =~ s|//(.*?)\n|\n|g ) { }

    while( $source =~ /
            (?:
                # Some doublequotes are "escaped" to help vim syntax highlight

                # $1 = scope; $2 = parameters etc.
                (?:
                    # Scoped function name ($1 is scope).
                    (\w+)::(?:\w+)
                    \s*
                    # Parameters etc up to open-curly - no semicolons
                    \(([^();]*)\)
                    \s*
                    (?:\{|:)
                )
              |
                # $3 - one-argument msgid
                (?:\b
                    # One of the marks
                    (?:$real_mark|$noop_mark)
                    \s*
                    # The parameter
                    \(\s*((?:"(?:[^"]|[^\\]\\")*"\s*)+)\)
                )
              |
                # $4,$5 - two-argument msgid
                (?:\b
                    # One of the scoped marks
                    (?:$scoped_mark|$noop_scoped_mark)
                    \s*
                    # The parameters
                    \(
                        # The scope parameter
                        \s*"([^\"]*)"
                        \s*,\s*
                        # The msgid parameter
                        \s*((?:\"(?:[^"]|[^\\]\\")*"\s*)+) #"emacs
                    \)
                )
              |
                # $6,$7 - scoped one-argument msgid
                (?:\b
                    # The scope
                    (\w+)::
                    # One of the marks
                    (?:$real_mark)
                    \s*
                    # The parameter
                    \(\s*((?:"(?:[^"]|[^\\]\\")*"\s*)+)\)
                )
            )/gsx )
    {
        @lines = split /^/m, "$`";
        $line = @lines;
        if ( defined( $1 ) ) {
            if ( $scope ne $1 ) {
                $sc=$1;
                $etc=$2;
                # remove strings
                $etc =~ s/"(?:[^"]|[^\\]\\")"//g;
                # count ( and )
                @open = split /\(/m, $etc;
                @close = split /\)/m, $etc;
                if ( $#open == $#close ) {
                    $scope = $sc;
                }
            }
            next;
        }

        if ( defined( $3 ) ) {
            $this_scope = $scope;
            $msgid = $3;
        } elsif ( defined( $4 ) ) {
            $this_scope = $4;
            $msgid = $5;
        } elsif ( defined( $6 ) ) {
            $this_scope = $6;
            $msgid = $7;
        } else {
            next;
        }

        $msgid =~ s/^\s*//;
        $msgid =~ s/\s*$//;

        # Might still be non-unique eg. tr("A" "B")  vs.  tr("A"  "B").

        $location{"${this_scope}::${msgid}"} = "$file:$line";
    }
}

for $scoped_msgid ( sort keys %location ) {
    ($scope,$msgid) = $scoped_msgid =~ m/([^:]*)::(.*)/s;
    ($file,$line) = $location{$scoped_msgid} =~ m/([^:]*):(.*)/s;
    outmsg($file,$line,$scope,$msgid);
}