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11 * GNU General Public License for more details.
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14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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22 * Temporary workaround for incorrect collation of Persian language ('fa') in ICU 52 (bug T139110).
24 * Replace with other letters that appear in an okish spot in the alphabet
26 * - Characters 'و' 'ا' (often appear at the beginning of words)
27 * - Characters 'ٲ' 'ٳ' (may appear at the beginning of words in loanwords)
31 class CollationFa
extends IcuCollation
{
33 // Really hacky - replace with stuff from other blocks.
35 // U+0627 ARABIC LETTER ALEF => U+0623 ARABIC LETTER ALEF WITH HAMZA ABOVE
36 "\xd8\xa7" => "\xd8\xa3",
37 // U+0648 ARABIC LETTER WAW => U+0649 ARABIC LETTER ALEF MAKSURA
38 "\xd9\x88" => "\xd9\x89",
39 // U+0672 ARABIC LETTER ALEF WITH WAVY HAMZA ABOVE => U+F3001 (private use area)
40 "\xd9\xb2" => "\xF3\xB3\x80\x81",
41 // U+0673 ARABIC LETTER ALEF WITH WAVY HAMZA BELOW => U+F3002 (private use area)
42 "\xd9\xb3" => "\xF3\xB3\x80\x82",
45 public function __construct() {
46 parent
::__construct( 'fa' );
49 public function getSortKey( $string ) {
50 $modified = strtr( $string, $this->override
);
51 return parent
::getSortKey( $modified );
54 public function getFirstLetter( $string ) {
55 if ( isset( $this->override
[substr( $string, 0, 2 )] ) ) {
56 return substr( $string, 0, 2 );
58 return parent
::getFirstLetter( $string );