add a new helper script: addkeyid2pot.pl

It adds key IDs to pot entries in the form of #. type comments.
In Pootle the translator can search for strings using the key IDs.

l10ntools/prj/d.lst

@@ -40,6 +40,7 @@ mkdir: %_DEST%\bin\help\com\sun\star\help
 ..\scripts\localize %_DEST%\bin\localize
 ..\scripts\fast_merge.pl %_DEST%\bin\fast_merge.pl
 ..\scripts\keyidGen.pl %_DEST%\bin\keyidGen.pl
+..\scripts\addkeyid2pot.pl %_DEST%\bin\addkeyid2pot.pl
 ..\scripts\po2lo %_DEST%\bin\po2lo
 ..\inc\export.hxx %_DEST%\inc\l10ntools\export.hxx
 ..\inc\l10ntools\directory.hxx %_DEST%\inc\l10ntools\directory.hxx

l10ntools/scripts/addkeyid2pot.pl

+:
+eval 'exec perl -S $0 ${1+"$@"}'
+    if 0;
+# Version: MPL 1.1 / GPLv3+ / LGPLv3+
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License or as specified alternatively below. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Initial Developer of the Original Code is
+#       Andras Timar <atimar@suse.com>
+# Portions created by the Initial Developer are Copyright (C) 2011 the
+# Initial Developer. All Rights Reserved.
+#
+# Major Contributor(s):
+#
+# For minor contributions see the git repository.
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 3 or later (the "GPLv3+"), or
+# the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
+# in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
+# instead of those above.
+#
+# add keyids to pot files
+#
+
+use File::Find;
+
+sub keyidgen
+{
+    my $key = shift;
+    my $crc = crc24($key);
+    my $symbols="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz#_";
+    my $keyid = "";
+    while ( length($keyid) < 4 )
+    {
+        $keyid .= substr($symbols, $crc & 63, 1);
+        $crc = $crc >> 6;
+    }
+    return $keyid;
+}
+
+sub crc24
+{
+    my $CRC24_INIT = 0x00b704ce;
+    my $CRC24_POLY = 0x00864cfb;
+    my $key = shift;
+    my $key_length = length($key);
+    my $crc = $CRC24_INIT;
+    my $position = 0;
+
+    while ( $position < $key_length )
+    {
+        $crc ^= (unpack("C", substr($key, $position, 1)) << 16);
+        my $i;
+        for ($i = 0; $i < 8; $i++)
+        {
+            $crc <<= 1;
+            $crc ^= $CRC24_POLY if ($crc & 0x01000000)
+        }
+        $position++;
+    }
+    return $crc & 0x00ffffff;
+}
+
+my $potdir = $ARGV[0];
+
+if (!$potdir) {die "Usage_ $0 <directory of pot files>\n";}
+
+my @potfiles = ();
+
+File::Find::find( sub {/^.*\.pot\z/s && push @potfiles, $File::Find::name;}, $potdir );
+
+foreach $f (@potfiles)
+{
+    open OLDPOT , "< $f" || die("Cannot open source pot file: $f\n");
+    $fnew = $f . ".new";
+    @path = split ("/",$f);
+    $keypart1 = pop @path;
+    $keypart1 =~ s/.pot//;
+    $keypart1 .= "_";
+    $keypart2 = pop @path;
+    $keypart1 = $keypart2 . "_" . $keypart1;
+    open NEWPOT , "> $fnew" || die("Cannot open target pot file: $f\n");
+    while ( <OLDPOT> )
+    {
+        chomp;
+        if( /^#: (.*)$/ )
+        {
+            print NEWPOT "#. " . keyidgen($keypart1 . $1) . "\n";
+        }
+        print NEWPOT $_ . "\n";
+    }
+    close OLDPOT;
+    close NEWPOT;
+    rename $fnew,$f;
+}
+
+exit 0;