*
* @category Plugin
* @package StatusNet
- * @author Behrooz shabani (everplays) - <behrooz@rock.com>
+ * @author Behrooz shabani (everplays) - <behrooz@rock.com>
* @copyright 2009-2010 Behrooz shabani
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
*
*/
if (!defined('STATUSNET')) {
- exit(1);
+ exit(1);
}
-define('DIRECTIONDETECTORPLUGIN_VERSION', '0.1.2');
+define('DIRECTIONDETECTORPLUGIN_VERSION', '0.2.0');
class DirectionDetectorPlugin extends Plugin {
- /**
- * SN plugin API, here we will make changes on rendered column
- *
- * @param object $notice notice is going to be saved
- */
- public function onStartNoticeSave(&$notice){
- if(!preg_match('/<span class="rtl">/', $notice->rendered) && self::isRTL($notice->content))
- $notice->rendered = '<span class="rtl">'.$notice->rendered.'</span>';
- return true;
- }
+ /**
+ * SN plugin API, here we will make changes on rendered column
+ *
+ * @param object $notice notice is going to be saved
+ */
+ public function onStartNoticeSave($notice){
+ if(!preg_match('/<span class="rtl">/', $notice->rendered) && self::isRTL($notice->content))
+ $notice->rendered = '<span class="rtl">'.$notice->rendered.'</span>';
+ return true;
+ }
- /**
- * SN plugin API, here we will add css needed for modifiyed rendered
- *
- * @param
- */
- public function onEndShowStatusNetStyles($xml){
- $xml->element('style', array('type' => 'text/css'), 'span.rtl {display:block;direction:rtl;text-align:right;float:right;width:490px;} .notice .author {float:left}');
- }
- /**
- * checks that passed string is a RTL language or not
- *
- * @param string $str String to be checked
- */
- public static function isRTL($str){
- self::getClearText($str);
- if( is_array($cc = self::utf8ToUnicode(mb_substr($str, 0, 1, 'utf-8'))) )
- $cc = $cc[0];
- else
- return false;
- if($cc>=1536 && $cc<=1791) // Arabic, Persian, Urdu, Kurdish, ...
- return true;
- if($cc>=65136 && $cc<=65279) // Arabic peresent 2
- return true;
- if($cc>=64336 && $cc<=65023) // Arabic peresent 1
- return true;
- if($cc>=1424 && $cc<=1535) // Hebrew
- return true;
- if($cc>=64256 && $cc<=64335) // Hebrew peresent
- return true;
- if($cc>=1792 && $cc<=1871) // Syriac
- return true;
- if($cc>=1920 && $cc<=1983) // Thaana
- return true;
- if($cc>=1984 && $cc<=2047) // NKo
- return true;
- if($cc>=11568 && $cc<=11647) // Tifinagh
- return true;
- return false;
- }
+ /**
+ * is passed string a rtl content or not
+ *
+ * @param string $content
+ * @return boolean
+ */
+ public static function isRTL($content){
+ $content = self::getClearText($content);
+ $words = explode(' ', $content);
+ $rtl = 0;
+ foreach($words as $str)
+ if(self::startsWithRTLCharacter($str))
+ $rtl++;
+ else
+ $rtl--;
+ if($rtl>0)// if number of rtl words is more than ltr words so it's a rtl content
+ return true;
+ elseif($rtl==0)
+ // check first word again
+ return self::startsWithRTLCharacter($words[0]);
+ return false;
+ }
- /**
- * clears text from replies, tags, groups, repeats & whitespaces
- *
- * @param string &$str string to be cleared
- */
- private static function getClearText(&$str){
- $str = preg_replace('/@[^ ]+|![^ ]+|#[^ ]+/u', '', $str); // reply, tag, group
- $str = preg_replace('/^RT[: ]{1}| RT | RT: |^RD[: ]{1}| RD | RD: |[♺♻:]/u', '', $str); // redent, retweet
- $str = preg_replace("/[ \r\t\n]+/", ' ', trim($str)); // remove spaces
- }
+ /**
+ * checks that passed string starts with a RTL language or not
+ *
+ * @param string $str
+ * @return boolean
+ */
+ public static function startsWithRTLCharacter($str){
+ if (strlen($str) < 1) {
+ return false;
+ }
+ if( is_array($cc = self::utf8ToUnicode(mb_substr($str, 0, 1, 'utf-8'))) )
+ $cc = $cc[0];
+ else
+ return false;
+ if($cc>=1536 && $cc<=1791) // arabic, persian, urdu, kurdish, ...
+ return true;
+ if($cc>=65136 && $cc<=65279) // arabic peresent 2
+ return true;
+ if($cc>=64336 && $cc<=65023) // arabic peresent 1
+ return true;
+ if($cc>=1424 && $cc<=1535) // hebrew
+ return true;
+ if($cc>=64256 && $cc<=64335) // hebrew peresent
+ return true;
+ if($cc>=1792 && $cc<=1871) // Syriac
+ return true;
+ if($cc>=1920 && $cc<=1983) // Thaana
+ return true;
+ if($cc>=1984 && $cc<=2047) // NKo
+ return true;
+ if($cc>=11568 && $cc<=11647) // Tifinagh
+ return true;
+ return false;
+ }
- /**
- * Takes a UTF-8 string and returns an array of ints representing the
- * Unicode characters. Astral planes are supported i.e. the ints in the
- * output can be > 0xFFFF. Occurrances of the BOM are ignored. Surrogates
- * are not allowed. ### modified ### returns first character code
- *
- * Returns false if the input string isn't a valid UTF-8 octet sequence.
- */
- private static function utf8ToUnicode($str){
- $mState = 0; // cached expected number of octets after the current octet
- // until the beginning of the next UTF8 character sequence
- $mUcs4 = 0; // cached Unicode character
- $mBytes = 1; // cached expected number of octets in the current sequence
- $out = array();
- $len = strlen($str);
+ /**
+ * clears text from replys, tags, groups, reteets & whitespaces
+ *
+ * @param string $str
+ * @return string
+ */
+ private static function getClearText($str){
+ $str = preg_replace('/@[^ ]+|![^ ]+|#[^ ]+/u', '', $str); // reply, tag, group
+ $str = preg_replace('/^RT[: ]{1}| RT | RT: |^RD[: ]{1}| RD | RD: |[♺♻:]/u', '', $str); // redent, retweet
+ $str = preg_replace("/[ \r\t\n]+/", ' ', trim($str)); // remove spaces
+ return $str;
+ }
- for($i = 0; $i < $len; $i++) {
- $in = ord($str{$i});
- if (0 == $mState) {
- // When mState is zero we expect either a US-ASCII character or a
- // multi-octet sequence.
- if (0 == (0x80 & ($in))) {
- // US-ASCII, pass straight through.
- $out[] = $in;
- $mBytes = 1;
- } elseif (0xC0 == (0xE0 & ($in))) {
- // First octet of 2 octet sequence
- $mUcs4 = ($in);
- $mUcs4 = ($mUcs4 & 0x1F) << 6;
- $mState = 1;
- $mBytes = 2;
- } elseif (0xE0 == (0xF0 & ($in))) {
- // First octet of 3 octet sequence
- $mUcs4 = ($in);
- $mUcs4 = ($mUcs4 & 0x0F) << 12;
- $mState = 2;
- $mBytes = 3;
- } elseif (0xF0 == (0xF8 & ($in))) {
- // First octet of 4 octet sequence
- $mUcs4 = ($in);
- $mUcs4 = ($mUcs4 & 0x07) << 18;
- $mState = 3;
- $mBytes = 4;
- } elseif (0xF8 == (0xFC & ($in))) {
- /* First octet of 5 octet sequence.
- *
- * This is illegal because the encoded codepoint must be either
- * (a) not the shortest form or
- * (b) outside the Unicode range of 0-0x10FFFF.
- * Rather than trying to resynchronize, we will carry on until the end
- * of the sequence and let the later error handling code catch it.
- */
- $mUcs4 = ($in);
- $mUcs4 = ($mUcs4 & 0x03) << 24;
- $mState = 4;
- $mBytes = 5;
- } elseif (0xFC == (0xFE & ($in))) {
- // First octet of 6 octet sequence, see comments for 5 octet sequence.
- $mUcs4 = ($in);
- $mUcs4 = ($mUcs4 & 1) << 30;
- $mState = 5;
- $mBytes = 6;
- } else {
- /* Current octet is neither in the US-ASCII range nor a legal first
- * octet of a multi-octet sequence.
- */
- return false;
- }
- } else {
- // When mState is non-zero, we expect a continuation of the multi-octet
- // sequence
- if (0x80 == (0xC0 & ($in))) {
- // Legal continuation.
- $shift = ($mState - 1) * 6;
- $tmp = $in;
- $tmp = ($tmp & 0x0000003F) << $shift;
- $mUcs4 |= $tmp;
- if (0 == --$mState) {
- /* End of the multi-octet sequence. mUcs4 now contains the final
- * Unicode codepoint to be output
- *
- * Check for illegal sequences and codepoints.
- */
- // From Unicode 3.1, non-shortest form is illegal
- if (
- ((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
- ((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
- ((4 == $mBytes) && ($mUcs4 < 0x10000)) ||
- (4 < $mBytes) ||
- // From Unicode 3.2, surrogate characters are illegal
- (($mUcs4 & 0xFFFFF800) == 0xD800) ||
- // Codepoints outside the Unicode range are illegal
- ($mUcs4 > 0x10FFFF)
- ){
- return false;
- }
- if (0xFEFF != $mUcs4) {
- $out[] = $mUcs4;
- }
- //initialize UTF8 cache
- $mState = 0;
- $mUcs4 = 0;
- $mBytes = 1;
- }
- } else {
- /* ((0xC0 & (*in) != 0x80) && (mState != 0))
- *
- * Incomplete multi-octet sequence.
- */
- return false;
- }
- }
- }
- return $out;
- }
+ /**
+ * adds javascript to do same thing on input textarea
+ *
+ * @param Action $action
+ */
+ function onEndShowScripts($action){
+ if (common_logged_in()) {
+ $action->script($this->path('jquery.DirectionDetector.js'));
+ }
+ }
- /**
- * plugin details
- */
- function onPluginVersion(&$versions){
- $versions[] = array(
- 'name' => 'Direction detector',
- 'version' => DIRECTIONDETECTORPLUGIN_VERSION,
- 'author' => 'Behrooz Shabani',
- // TRANS: Direction detector plugin description.
- 'rawdescription' => _m('Shows notices with right-to-left content in correct direction.')
- );
- return true;
- }
+ /**
+ * Takes an UTF-8 string and returns an array of ints representing the
+ * Unicode characters. Astral planes are supported ie. the ints in the
+ * output can be > 0xFFFF. O$ccurrances of the BOM are ignored. Surrogates
+ * are not allowed.
+ *
+ * @param string $str
+ * @return mixed array of ints, or false on invalid input
+ */
+ private static function utf8ToUnicode($str){
+ $mState = 0; // cached expected number of octets after the current octet
+ // until the beginning of the next UTF8 character sequence
+ $mUcs4 = 0; // cached Unicode character
+ $mBytes = 1; // cached expected number of octets in the current sequence
+ $out = array();
+ $len = strlen($str);
+
+ for($i = 0; $i < $len; $i++) {
+ $in = ord($str{$i});
+ if (0 == $mState) {
+ // When mState is zero we expect either a US-ASCII character or a
+ // multi-octet sequence.
+ if (0 == (0x80 & ($in))) {
+ // US-ASCII, pass straight through.
+ $out[] = $in;
+ $mBytes = 1;
+ } elseif (0xC0 == (0xE0 & ($in))) {
+ // First octet of 2 octet sequence
+ $mUcs4 = ($in);
+ $mUcs4 = ($mUcs4 & 0x1F) << 6;
+ $mState = 1;
+ $mBytes = 2;
+ } elseif (0xE0 == (0xF0 & ($in))) {
+ // First octet of 3 octet sequence
+ $mUcs4 = ($in);
+ $mUcs4 = ($mUcs4 & 0x0F) << 12;
+ $mState = 2;
+ $mBytes = 3;
+ } elseif (0xF0 == (0xF8 & ($in))) {
+ // First octet of 4 octet sequence
+ $mUcs4 = ($in);
+ $mUcs4 = ($mUcs4 & 0x07) << 18;
+ $mState = 3;
+ $mBytes = 4;
+ } elseif (0xF8 == (0xFC & ($in))) {
+ /* First octet of 5 octet sequence.
+ *
+ * This is illegal because the encoded codepoint must be either
+ * (a) not the shortest form or
+ * (b) outside the Unicode range of 0-0x10FFFF.
+ * Rather than trying to resynchronize, we will carry on until the end
+ * of the sequence and let the later error handling code catch it.
+ */
+ $mUcs4 = ($in);
+ $mUcs4 = ($mUcs4 & 0x03) << 24;
+ $mState = 4;
+ $mBytes = 5;
+ } elseif (0xFC == (0xFE & ($in))) {
+ // First octet of 6 octet sequence, see comments for 5 octet sequence.
+ $mUcs4 = ($in);
+ $mUcs4 = ($mUcs4 & 1) << 30;
+ $mState = 5;
+ $mBytes = 6;
+ } else {
+ /* Current octet is neither in the US-ASCII range nor a legal first
+ * octet of a multi-octet sequence.
+ */
+ return false;
+ }
+ } else {
+ // When mState is non-zero, we expect a continuation of the multi-octet
+ // sequence
+ if (0x80 == (0xC0 & ($in))) {
+ // Legal continuation.
+ $shift = ($mState - 1) * 6;
+ $tmp = $in;
+ $tmp = ($tmp & 0x0000003F) << $shift;
+ $mUcs4 |= $tmp;
+ if (0 == --$mState) {
+ /* End of the multi-octet sequence. mUcs4 now contains the final
+ * Unicode codepoint to be output
+ *
+ * Check for illegal sequences and codepoints.
+ */
+ // From Unicode 3.1, non-shortest form is illegal
+ if (
+ ((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
+ ((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
+ ((4 == $mBytes) && ($mUcs4 < 0x10000)) ||
+ (4 < $mBytes) ||
+ // From Unicode 3.2, surrogate characters are illegal
+ (($mUcs4 & 0xFFFFF800) == 0xD800) ||
+ // Codepoints outside the Unicode range are illegal
+ ($mUcs4 > 0x10FFFF)
+ ){
+ return false;
+ }
+ if (0xFEFF != $mUcs4) {
+ $out[] = $mUcs4;
+ }
+ //initialize UTF8 cache
+ $mState = 0;
+ $mUcs4 = 0;
+ $mBytes = 1;
+ }
+ } else {
+ /* ((0xC0 & (*in) != 0x80) && (mState != 0))
+ *
+ * Incomplete multi-octet sequence.
+ */
+ return false;
+ }
+ }
+ }
+ return $out;
+ }
+
+ /**
+ * plugin details
+ */
+ function onPluginVersion(array &$versions){
+ $url = 'http://status.net/wiki/Plugin:DirectionDetector';
+
+ $versions[] = array(
+ 'name' => 'Direction detector',
+ 'version' => DIRECTIONDETECTORPLUGIN_VERSION,
+ 'author' => 'Behrooz Shabani',
+ 'homepage' => $url,
+ // TRANS: Plugin description.
+ 'rawdescription' => _m('Shows notices with right-to-left content in correct direction.')
+ );
+ return true;
+ }
}
/*
projects / quix0rs-gnu-social.git / blobdiff