DirectionDetector plugin: tabs to spaces

This commit is contained in:
Brion Vibber 2010-09-20 12:02:04 -07:00
parent d055b63187
commit a3de417ca5

View File

@ -26,240 +26,240 @@
*/ */
if (!defined('STATUSNET')) { if (!defined('STATUSNET')) {
exit(1); exit(1);
} }
define('DIRECTIONDETECTORPLUGIN_VERSION', '0.2.0'); define('DIRECTIONDETECTORPLUGIN_VERSION', '0.2.0');
class DirectionDetectorPlugin extends Plugin { class DirectionDetectorPlugin extends Plugin {
/** /**
* SN plugin API, here we will make changes on rendered column * SN plugin API, here we will make changes on rendered column
* *
* @param object $notice notice is going to be saved * @param object $notice notice is going to be saved
*/ */
public function onStartNoticeSave($notice){ public function onStartNoticeSave($notice){
if(!preg_match('/<span class="rtl">/', $notice->rendered) && self::isRTL($notice->content)) if(!preg_match('/<span class="rtl">/', $notice->rendered) && self::isRTL($notice->content))
$notice->rendered = '<span class="rtl">'.$notice->rendered.'</span>'; $notice->rendered = '<span class="rtl">'.$notice->rendered.'</span>';
return true; return true;
} }
/** /**
* SN plugin API, here we will add css needed for modifiyed rendered * SN plugin API, here we will add css needed for modifiyed rendered
* *
* @param Action $xml * @param Action $xml
*/ */
public function onEndShowStatusNetStyles($xml){ public function onEndShowStatusNetStyles($xml){
$xml->element('style', array('type' => 'text/css'), 'span.rtl {display:block;direction:rtl;text-align:right;float:right;} .notice .author {float:left}'); $xml->element('style', array('type' => 'text/css'), 'span.rtl {display:block;direction:rtl;text-align:right;float:right;} .notice .author {float:left}');
} }
/** /**
* is passed string a rtl content or not * is passed string a rtl content or not
* *
* @param string $content * @param string $content
* @return boolean * @return boolean
*/ */
public static function isRTL($content){ public static function isRTL($content){
$content = self::getClearText($content); $content = self::getClearText($content);
$words = explode(' ', $content); $words = explode(' ', $content);
$rtl = 0; $rtl = 0;
foreach($words as $str) foreach($words as $str)
if(self::startsWithRTLCharacter($str)) if(self::startsWithRTLCharacter($str))
$rtl++; $rtl++;
else else
$rtl--; $rtl--;
if($rtl>0)// if number of rtl words is more than ltr words so it's a rtl content if($rtl>0)// if number of rtl words is more than ltr words so it's a rtl content
return true; return true;
elseif($rtl==0) elseif($rtl==0)
// check first word again // check first word again
return self::startsWithRTLCharacter($words[0]); return self::startsWithRTLCharacter($words[0]);
return false; return false;
} }
/** /**
* checks that passed string starts with a RTL language or not * checks that passed string starts with a RTL language or not
* *
* @param string $str * @param string $str
* @return boolean * @return boolean
*/ */
public static function startsWithRTLCharacter($str){ public static function startsWithRTLCharacter($str){
if( is_array($cc = self::utf8ToUnicode(mb_substr($str, 0, 1, 'utf-8'))) ) if( is_array($cc = self::utf8ToUnicode(mb_substr($str, 0, 1, 'utf-8'))) )
$cc = $cc[0]; $cc = $cc[0];
else else
return false; return false;
if($cc>=1536 && $cc<=1791) // arabic, persian, urdu, kurdish, ... if($cc>=1536 && $cc<=1791) // arabic, persian, urdu, kurdish, ...
return true; return true;
if($cc>=65136 && $cc<=65279) // arabic peresent 2 if($cc>=65136 && $cc<=65279) // arabic peresent 2
return true; return true;
if($cc>=64336 && $cc<=65023) // arabic peresent 1 if($cc>=64336 && $cc<=65023) // arabic peresent 1
return true; return true;
if($cc>=1424 && $cc<=1535) // hebrew if($cc>=1424 && $cc<=1535) // hebrew
return true; return true;
if($cc>=64256 && $cc<=64335) // hebrew peresent if($cc>=64256 && $cc<=64335) // hebrew peresent
return true; return true;
if($cc>=1792 && $cc<=1871) // Syriac if($cc>=1792 && $cc<=1871) // Syriac
return true; return true;
if($cc>=1920 && $cc<=1983) // Thaana if($cc>=1920 && $cc<=1983) // Thaana
return true; return true;
if($cc>=1984 && $cc<=2047) // NKo if($cc>=1984 && $cc<=2047) // NKo
return true; return true;
if($cc>=11568 && $cc<=11647) // Tifinagh if($cc>=11568 && $cc<=11647) // Tifinagh
return true; return true;
return false; return false;
} }
/** /**
* clears text from replys, tags, groups, reteets & whitespaces * clears text from replys, tags, groups, reteets & whitespaces
* *
* @param string $str * @param string $str
* @return string * @return string
*/ */
private static function getClearText($str){ private static function getClearText($str){
$str = preg_replace('/@[^ ]+|![^ ]+|#[^ ]+/u', '', $str); // reply, tag, group $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('/^RT[: ]{1}| RT | RT: |^RD[: ]{1}| RD | RD: |[♺♻:]/u', '', $str); // redent, retweet
$str = preg_replace("/[ \r\t\n]+/", ' ', trim($str)); // remove spaces $str = preg_replace("/[ \r\t\n]+/", ' ', trim($str)); // remove spaces
return $str; return $str;
} }
/** /**
* adds javascript to do same thing on input textarea * adds javascript to do same thing on input textarea
* *
* @param Action $action * @param Action $action
*/ */
function onEndShowScripts($action){ function onEndShowScripts($action){
if (common_logged_in()) { if (common_logged_in()) {
$action->script('plugins/DirectionDetector/jquery.DirectionDetector.js'); $action->script('plugins/DirectionDetector/jquery.DirectionDetector.js');
} }
} }
/** /**
* Takes an UTF-8 string and returns an array of ints representing the * Takes an UTF-8 string and returns an array of ints representing the
* Unicode characters. Astral planes are supported ie. the ints in the * Unicode characters. Astral planes are supported ie. the ints in the
* output can be > 0xFFFF. O$ccurrances of the BOM are ignored. Surrogates * output can be > 0xFFFF. O$ccurrances of the BOM are ignored. Surrogates
* are not allowed. * are not allowed.
* *
* @param string $str * @param string $str
* @return mixed array of ints, or false on invalid input * @return mixed array of ints, or false on invalid input
*/ */
private static function utf8ToUnicode($str){ private static function utf8ToUnicode($str){
$mState = 0; // cached expected number of octets after the current octet $mState = 0; // cached expected number of octets after the current octet
// until the beginning of the next UTF8 character sequence // until the beginning of the next UTF8 character sequence
$mUcs4 = 0; // cached Unicode character $mUcs4 = 0; // cached Unicode character
$mBytes = 1; // cached expected number of octets in the current sequence $mBytes = 1; // cached expected number of octets in the current sequence
$out = array(); $out = array();
$len = strlen($str); $len = strlen($str);
for($i = 0; $i < $len; $i++) { for($i = 0; $i < $len; $i++) {
$in = ord($str{$i}); $in = ord($str{$i});
if (0 == $mState) { if (0 == $mState) {
// When mState is zero we expect either a US-ASCII character or a // When mState is zero we expect either a US-ASCII character or a
// multi-octet sequence. // multi-octet sequence.
if (0 == (0x80 & ($in))) { if (0 == (0x80 & ($in))) {
// US-ASCII, pass straight through. // US-ASCII, pass straight through.
$out[] = $in; $out[] = $in;
$mBytes = 1; $mBytes = 1;
} elseif (0xC0 == (0xE0 & ($in))) { } elseif (0xC0 == (0xE0 & ($in))) {
// First octet of 2 octet sequence // First octet of 2 octet sequence
$mUcs4 = ($in); $mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x1F) << 6; $mUcs4 = ($mUcs4 & 0x1F) << 6;
$mState = 1; $mState = 1;
$mBytes = 2; $mBytes = 2;
} elseif (0xE0 == (0xF0 & ($in))) { } elseif (0xE0 == (0xF0 & ($in))) {
// First octet of 3 octet sequence // First octet of 3 octet sequence
$mUcs4 = ($in); $mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x0F) << 12; $mUcs4 = ($mUcs4 & 0x0F) << 12;
$mState = 2; $mState = 2;
$mBytes = 3; $mBytes = 3;
} elseif (0xF0 == (0xF8 & ($in))) { } elseif (0xF0 == (0xF8 & ($in))) {
// First octet of 4 octet sequence // First octet of 4 octet sequence
$mUcs4 = ($in); $mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x07) << 18; $mUcs4 = ($mUcs4 & 0x07) << 18;
$mState = 3; $mState = 3;
$mBytes = 4; $mBytes = 4;
} elseif (0xF8 == (0xFC & ($in))) { } elseif (0xF8 == (0xFC & ($in))) {
/* First octet of 5 octet sequence. /* First octet of 5 octet sequence.
* *
* This is illegal because the encoded codepoint must be either * This is illegal because the encoded codepoint must be either
* (a) not the shortest form or * (a) not the shortest form or
* (b) outside the Unicode range of 0-0x10FFFF. * (b) outside the Unicode range of 0-0x10FFFF.
* Rather than trying to resynchronize, we will carry on until the end * Rather than trying to resynchronize, we will carry on until the end
* of the sequence and let the later error handling code catch it. * of the sequence and let the later error handling code catch it.
*/ */
$mUcs4 = ($in); $mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x03) << 24; $mUcs4 = ($mUcs4 & 0x03) << 24;
$mState = 4; $mState = 4;
$mBytes = 5; $mBytes = 5;
} elseif (0xFC == (0xFE & ($in))) { } elseif (0xFC == (0xFE & ($in))) {
// First octet of 6 octet sequence, see comments for 5 octet sequence. // First octet of 6 octet sequence, see comments for 5 octet sequence.
$mUcs4 = ($in); $mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 1) << 30; $mUcs4 = ($mUcs4 & 1) << 30;
$mState = 5; $mState = 5;
$mBytes = 6; $mBytes = 6;
} else { } else {
/* Current octet is neither in the US-ASCII range nor a legal first /* Current octet is neither in the US-ASCII range nor a legal first
* octet of a multi-octet sequence. * octet of a multi-octet sequence.
*/ */
return false; return false;
} }
} else { } else {
// When mState is non-zero, we expect a continuation of the multi-octet // When mState is non-zero, we expect a continuation of the multi-octet
// sequence // sequence
if (0x80 == (0xC0 & ($in))) { if (0x80 == (0xC0 & ($in))) {
// Legal continuation. // Legal continuation.
$shift = ($mState - 1) * 6; $shift = ($mState - 1) * 6;
$tmp = $in; $tmp = $in;
$tmp = ($tmp & 0x0000003F) << $shift; $tmp = ($tmp & 0x0000003F) << $shift;
$mUcs4 |= $tmp; $mUcs4 |= $tmp;
if (0 == --$mState) { if (0 == --$mState) {
/* End of the multi-octet sequence. mUcs4 now contains the final /* End of the multi-octet sequence. mUcs4 now contains the final
* Unicode codepoint to be output * Unicode codepoint to be output
* *
* Check for illegal sequences and codepoints. * Check for illegal sequences and codepoints.
*/ */
// From Unicode 3.1, non-shortest form is illegal // From Unicode 3.1, non-shortest form is illegal
if ( if (
((2 == $mBytes) && ($mUcs4 < 0x0080)) || ((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
((3 == $mBytes) && ($mUcs4 < 0x0800)) || ((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
((4 == $mBytes) && ($mUcs4 < 0x10000)) || ((4 == $mBytes) && ($mUcs4 < 0x10000)) ||
(4 < $mBytes) || (4 < $mBytes) ||
// From Unicode 3.2, surrogate characters are illegal // From Unicode 3.2, surrogate characters are illegal
(($mUcs4 & 0xFFFFF800) == 0xD800) || (($mUcs4 & 0xFFFFF800) == 0xD800) ||
// Codepoints outside the Unicode range are illegal // Codepoints outside the Unicode range are illegal
($mUcs4 > 0x10FFFF) ($mUcs4 > 0x10FFFF)
){ ){
return false; return false;
} }
if (0xFEFF != $mUcs4) { if (0xFEFF != $mUcs4) {
$out[] = $mUcs4; $out[] = $mUcs4;
} }
//initialize UTF8 cache //initialize UTF8 cache
$mState = 0; $mState = 0;
$mUcs4 = 0; $mUcs4 = 0;
$mBytes = 1; $mBytes = 1;
} }
} else { } else {
/* ((0xC0 & (*in) != 0x80) && (mState != 0)) /* ((0xC0 & (*in) != 0x80) && (mState != 0))
* *
* Incomplete multi-octet sequence. * Incomplete multi-octet sequence.
*/ */
return false; return false;
} }
} }
} }
return $out; return $out;
} }
/** /**
* plugin details * plugin details
*/ */
function onPluginVersion(&$versions){ function onPluginVersion(&$versions){
$versions[] = array( $versions[] = array(
'name' => 'Direction detector', 'name' => 'Direction detector',
'version' => DIRECTIONDETECTORPLUGIN_VERSION, 'version' => DIRECTIONDETECTORPLUGIN_VERSION,
'author' => 'Behrooz Shabani', 'author' => 'Behrooz Shabani',
'rawdescription' => _m('Shows notices with right-to-left content in correct direction.') 'rawdescription' => _m('Shows notices with right-to-left content in correct direction.')
); );
return true; return true;
} }
} }
/* /*