Add experimental MathML output option for math (only works with some
browsers and requires use of an XML content type; try setting $wgMimeType = "application/xhtml+xml" and use Mozilla). Rearranged a couple things in prefs. Did some refactoring in Math.php to remove some duplicated code and figure out what is going on.
This commit is contained in:
Brion Vibber
parent
65b84317c9
commit
93b09379fb
6 changed files with 233 additions and 168 deletions
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@ -1,153 +1,205 @@
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<?php
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#
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# Takes LaTeX fragments, sends them to a helper program (texvc) for rendering
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# to rasterized PNG and HTML and MathML approximations. An appropriate
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# rendering form is picked and returned.
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#
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# by Tomasz Wegrzanowski, with additions by Brion Vibber (2003, 2004)
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#
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function linkToMathImage ( $tex, $outputhash )
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{
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global $wgMathPath;
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$url = htmlspecialchars( "$wgMathPath/$outputhash.png" );
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$alt = htmlspecialchars( $tex );
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return "<img class='tex' src=\"$url\" alt=\"$alt\" />";
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}
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function renderMath( $tex )
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{
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global $wgUser, $wgMathDirectory, $wgTmpDirectory, $wgInputEncoding;
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global $wgTexvc;
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$mf = wfMsg( "math_failure" );
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$munk = wfMsg( "math_unknown_error" );
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$fname = "renderMath";
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$math = $wgUser->getOption("math");
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if( $math == 3 ) {
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return ('$ '.wfEscapeHTML($tex).' $');
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class MathRenderer {
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var $mode = MW_MATH_MODERN;
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var $tex = "";
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var $inputhash = "";
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var $hash = "";
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var $html = "";
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var $mathml = "";
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var $conservativeness = 0;
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function MathRenderer( $tex ) {
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$this->tex = $tex;
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}
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function setOutputMode( $mode ) {
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$this->mode = $mode;
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}
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$md5 = md5($tex);
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$md5_sql = mysql_escape_string(pack("H32", $md5));
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if ($math == 0) {
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$sql = "SELECT math_outputhash FROM math WHERE math_inputhash = '$md5_sql'";
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} else {
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$sql = "SELECT math_outputhash,math_html_conservativeness,math_html FROM math WHERE math_inputhash = '$md5_sql'";
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}
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$res = wfQuery( $sql, DB_READ, $fname );
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if( $rpage = wfFetchObject ( $res ) ) {
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$outputhash = unpack( "H32md5", $rpage->math_outputhash . " " );
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$outputhash = $outputhash ['md5'];
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if( file_exists( "$wgMathDirectory/$outputhash.png" ) ) {
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if (($math == 0) || ($rpage->math_html == '') || (($math == 1) && ($rpage->math_html_conservativeness != 2)) || (($math == 4) && ($rpage->math_html_conservativeness == 0))) {
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return linkToMathImage ( $tex, $outputhash );
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function render() {
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global $wgMathDirectory, $wgTmpDirectory, $wgInputEncoding;
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global $wgTexvc;
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if( $this->mode == MW_MATH_SOURCE ) {
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# No need to render or parse anything more!
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return ('$ '.htmlspecialchars( $tex ).' $');
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}
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if( !$this->_recall() ) {
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# Ensure that the temp and output directories are available before continuing...
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if( !file_exists( $wgMathDirectory ) ) {
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if( !@mkdir( $wgMathDirectory ) ) {
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return $this->_error( "math_bad_output" );
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}
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} elseif( !is_dir( $wgMathDirectory ) || !is_writable( $wgMathDirectory ) ) {
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return $this->_error( "math_bad_output" );
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}
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if( !file_exists( $wgTmpDirectory ) ) {
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if( !@mkdir( $wgTmpDirectory ) ) {
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return $this->_error( "math_bad_tmpdir" );
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}
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} elseif( !is_dir( $wgTmpDirectory ) || !is_writable( $wgTmpDirectory ) ) {
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return $this->_error( "math_bad_tmpdir" );
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}
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if( !is_executable( $wgTexvc ) ) {
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return $this->_error( "math_notexvc" );
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}
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$cmd = $wgTexvc." ".
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escapeshellarg($wgTmpDirectory)." ".
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escapeshellarg($wgMathDirectory)." ".
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escapeshellarg($this->tex)." ".
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escapeshellarg($wgInputEncoding);
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wfDebug( "TeX: $cmd" );
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$contents = `$cmd`;
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if (strlen($contents) == 0) {
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return $this->_error( "math_unknown_error" );
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}
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$retval = substr ($contents, 0, 1);
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if (($retval == "C") || ($retval == "M") || ($retval == "L")) {
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if ($retval == "C")
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$this->conservativeness = 2;
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else if ($retval == "M")
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$this->conservativeness = 1;
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else
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$this->conservativeness = 0;
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$outdata = substr ($contents, 33);
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$i = strpos($outdata, "\000");
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$this->html = substr($outdata, 0, $i);
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$this->mathml = substr($outdata, $i+1);
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$sql_html = "'".wfStrencode($this->html)."'";
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$sql_mathml = "'".wfStrencode($this->mathml)."'";
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} else if (($retval == "c") || ($retval == "m") || ($retval == "l")) {
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$this->html = substr ($contents, 33);
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if ($retval == "c")
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$this->conservativeness = 2;
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else if ($retval == "m")
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$this->conservativeness = 1;
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else
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$this->conservativeness = 0;
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$sql_html = "'".wfStrencode($this->html)."'";
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$this->mathml = '';
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$sql_mathml = 'NULL';
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} else if ($retval == "X") {
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$outhtml = '';
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$this->mathml = substr ($contents, 33);
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$sql_html = 'NULL';
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$sql_mathml = "'".wfStrencode($this->mathml)."'";
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$this->conservativeness = 0;
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} else if ($retval == "+") {
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$this->outhtml = '';
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$this->mathml = '';
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$sql_html = 'NULL';
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$sql_mathml = 'NULL';
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$this->conservativeness = 0;
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} else {
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return $rpage->math_html;
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$errbit = htmlspecialchars( substr($contents, 1) );
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switch( $retval ) {
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case "E": return $this->_error( "math_lexing_error", $errbit );
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case "S": return $this->_error( "math_syntax_error", $errbit );
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case "F": return $this->_error( "math_unknown_function", $errbit );
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default: return $this->_error( "math_unknown_error", $errbit );
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}
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}
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$this->hash = substr ($contents, 1, 32);
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if (!preg_match("/^[a-f0-9]{32}$/", $this->hash)) {
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return $this->_error( "math_unknown_error" );
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}
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if( !file_exists( "$wgMathDirectory/{$this->hash}.png" ) ) {
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return $this->_error( "math_image_error" );
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}
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# Now save it back to the DB:
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$outmd5_sql = wfStrencode(pack("H32", $this->hash));
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$md5_sql = wfStrencode( pack("H32", $this->md5) ); # Binary packed, not hex
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$sql = "REPLACE INTO math VALUES ('".$md5_sql."', '".$outmd5_sql."', ".$this->conservativeness.", ".$sql_html.", ".$sql_mathml.")";
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$res = wfQuery( $sql, DB_READ, "MathRenderer::render" );
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# we don't really care if it fails
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}
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return $this->_doRender();
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}
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function _error( $msg, $append = "" ) {
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$mf = htmlspecialchars( wfMsg( "math_failure" ) );
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$munk = htmlspecialchars( wfMsg( "math_unknown_error" ) );
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$errmsg = htmlspecialchars( wfMsg( $msg ) );
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$source = htmlspecialchars($this->tex);
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return "<strong class='error'>$mf ($errmsg$append): $source</strong>\n";
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}
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function _recall() {
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global $wgMathDirectory;
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$this->md5 = md5( $this->tex );
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$md5_sql = wfStrencode( pack("H32", $this->md5) ); # Binary packed, not hex
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$sql = "SELECT math_outputhash,math_html_conservativeness,math_html,math_mathml FROM math WHERE math_inputhash = '$md5_sql'";
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$res = wfQuery( $sql, DB_READ, "MathRenderer::_recall" );
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if( $rpage = wfFetchObject ( $res ) ) {
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# Tailing 0x20s can get dropped by the database, add it back on if necessary:
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$xhash = unpack( "H32md5", $rpage->math_outputhash . " " );
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$this->hash = $xhash ['md5'];
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$this->conservativeness = $rpage->math_html_conservativeness;
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$this->html = $rpage->math_html;
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$this->mathml = $rpage->math_mathml;
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if( file_exists( "$wgMathDirectory/{$this->hash}.png" ) ) {
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return true;
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}
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}
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# Missing from the database and/or the render cache
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return false;
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}
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# Ensure that the temp and output directories are available before continuing...
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if( !file_exists( $wgMathDirectory ) ) {
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if( !@mkdir( $wgMathDirectory ) ) {
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return "<b>$mf (" . wfMsg( "math_bad_output" ) . ")</b>";
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# Select among PNG, HTML, or MathML output depending on
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function _doRender() {
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if( $this->mode == MW_MATH_MATHML && $this->mathml != '' ) {
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return "<math xmlns='http://www.w3.org/1998/Math/MathML'>{$this->mathml}</math>";
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}
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} elseif( !is_dir( $wgMathDirectory ) || !is_writable( $wgMathDirectory ) ) {
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return "<b>$mf (" . wfMsg( "math_bad_output" ) . ")</b>";
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}
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if( !file_exists( $wgTmpDirectory ) ) {
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if( !@mkdir( $wgTmpDirectory ) ) {
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return "<b>$mf (" . wfMsg( "math_bad_tmpdir" ) . ")</b>";
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if (($this->mode == MW_MATH_PNG) || ($this->html == '') ||
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(($this->mode == MW_MATH_SIMPLE) && ($this->conservativeness != 2)) ||
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(($this->mode == MW_MATH_MODERN || $this->mode == MW_MATH_MATHML) && ($this->conservativeness == 0))) {
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return $this->_linkToMathImage();
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} else {
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return $this->html;
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}
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} elseif( !is_dir( $wgTmpDirectory ) || !is_writable( $wgTmpDirectory ) ) {
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return "<b>$mf (" . wfMsg( "math_bad_tmpdir" ) . ")</b>";
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}
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if( !is_executable( $wgTexvc ) ) {
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return "<b>$mf (" . wfMsg( "math_notexvc" ) . ")</b>";
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}
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$cmd = $wgTexvc." ".
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escapeshellarg($wgTmpDirectory)." ".
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escapeshellarg($wgMathDirectory)." ".
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escapeshellarg($tex)." ".
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escapeshellarg($wgInputEncoding);
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wfDebug( "TeX: $cmd" );
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$contents = `$cmd`;
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if (strlen($contents) == 0) {
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return "<b>".$mf." (".$munk."): ".wfEscapeHTML($tex)."</b>";
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}
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$retval = substr ($contents, 0, 1);
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if (($retval == "C") || ($retval == "M") || ($retval == "L")) {
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if ($retval == "C")
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$conservativeness = 2;
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else if ($retval == "M")
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$conservativeness = 1;
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else
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$conservativeness = 0;
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$outdata = substr ($contents, 33);
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$i = strpos($outdata, "\000");
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$outhtml = substr($outdata, 0, $i);
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$mathml = substr($outdata, $i+1);
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$sql_html = "'".mysql_escape_string($outhtml)."'";
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$sql_mathml = "'".mysql_escape_string($mathml)."'";
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} else if (($retval == "c") || ($retval == "m") || ($retval == "l")) {
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$outhtml = substr ($contents, 33);
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if ($retval == "c")
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$conservativeness = 2;
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else if ($retval == "m")
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$conservativeness = 1;
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else
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$conservativeness = 0;
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$sql_html = "'".mysql_escape_string($outhtml)."'";
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$mathml = '';
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$sql_mathml = 'NULL';
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} else if ($retval == "X") {
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$outhtml = '';
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$mathml = substr ($contents, 33);
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$sql_html = 'NULL';
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$sql_mathml = "'".mysql_escape_string($mathml)."'";
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$conservativeness = 0;
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} else if ($retval == "+") {
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$outhtml = '';
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$mathml = '';
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$sql_html = 'NULL';
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$sql_mathml = 'NULL';
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$conservativeness = 0;
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} else {
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if ($retval == "E")
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$errmsg = wfMsg( "math_lexing_error" );
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else if ($retval == "S")
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$errmsg = wfMsg( "math_syntax_error" );
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else if ($retval == "F")
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$errmsg = wfMsg( "math_unknown_function" );
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else
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$errmsg = $munk;
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return "<h3>".$mf." (".$errmsg.substr($contents, 1)."): ".wfEscapeHTML($tex)."</h3>";
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}
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$outmd5 = substr ($contents, 1, 32);
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if (!preg_match("/^[a-f0-9]{32}$/", $outmd5)) {
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return "<b>".$mf." (".$munk."): ".wfEscapeHTML($tex)."</b>";
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function _linkToMathImage() {
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global $wgMathPath;
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$url = htmlspecialchars( "$wgMathPath/{$this->hash}.png" );
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$alt = htmlspecialchars( $this->tex );
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return "<img class='tex' src=\"$url\" alt=\"$alt\" />";
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}
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if( !file_exists( "$wgMathDirectory/$outmd5.png" ) ) {
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$errmsg = wfMsg( "math_image_error" );
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return "<h3>$mf ($errmsg): " . wfEscapeHTML($tex) . "</h3>";
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}
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}
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$outmd5_sql = mysql_escape_string(pack("H32", $outmd5));
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$sql = "REPLACE INTO math VALUES ('".$md5_sql."', '".$outmd5_sql."', ".$conservativeness.", ".$sql_html.", ".$sql_mathml.")";
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$res = wfQuery( $sql, DB_READ, $fname );
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# we don't really care if it fails
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if (($math == 0) || ($rpage->math_html == '') || (($math == 1) && ($conservativeness != 2)) || (($math == 4) && ($conservativeness == 0)))
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return linkToMathImage($tex, $outmd5);
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else
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return $outhtml;
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function renderMath( $tex ) {
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global $wgUser;
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$math = new MathRenderer( $tex );
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$math->setOutputMode( $wgUser->getOption("math"));
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return $math->render();
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}
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?>
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@ -18,7 +18,7 @@
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*/
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define("RDF_TYPE_PREFS", "application/rdf+xml,text/xml;q=0.7,application/xml;q=0.5,text/rdf;q=0.1");
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function wfDublinCoreRdf($article) {
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$url = dcReallyFullUrl($article->mTitle);
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@ -321,17 +321,24 @@ class PreferencesForm {
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$wgOut->addHTML( "<form id=\"preferences\" name=\"preferences\" action=\"$action\"
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method=\"post\">" );
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# Quickbar setting
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# First section: identity
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# Email, etc.
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#
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$wgOut->addHtml( "<fieldset>\n<legend>$qb:</legend>\n" );
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for ( $i = 0; $i < count( $qbs ); ++$i ) {
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if ( $i == $this->mQuickbar ) { $checked = ' checked="checked"'; }
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else { $checked = ""; }
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$wgOut->addHTML( "<div><label><input type='radio' name=\"wpQuickbar\"
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value=\"$i\"$checked /> {$qbs[$i]}</label></div>\n" );
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}
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$wgOut->addHtml( "</fieldset>\n\n" );
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$this->mUserEmail = wfEscapeHTML( $this->mUserEmail );
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$this->mRealName = wfEscapeHTML( $this->mRealName );
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$this->mNick = wfEscapeHTML( $this->mNick );
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if ( $this->mEmailFlag ) { $emfc = 'checked="checked"'; }
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else { $emfc = ""; }
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$ps = $this->namespacesCheckboxes();
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$wgOut->addHTML( "<fieldset>
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<legend>Idento</legend>
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<div><label>$yrn: <input type='text' name=\"wpRealName\" value=\"{$this->mRealName}\" size='20' /></label></div>
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<div><label>$yem: <input type='text' name=\"wpUserEmail\" value=\"{$this->mUserEmail}\" size='20' /></label></div>
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<div><label><input type='checkbox' $emfc value=\"1\" name=\"wpEmailFlag\" /> $emf</label></div>
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<div><label>$ynn: <input type='text' name=\"wpNick\" value=\"{$this->mNick}\" size='12' /></label></div>\n" );
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# Fields for changing password
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#
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$this->mOldpass = wfEscapeHTML( $this->mOldpass );
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@ -344,7 +351,19 @@ class PreferencesForm {
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<div><label>$npw: <input type='password' name=\"wpNewpass\" value=\"{$this->mNewpass}\" size='20' /></label></div>
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<div><label>$rpw: <input type='password' name=\"wpRetypePass\" value=\"{$this->mRetypePass}\" size='20' /></label></div>
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" . $this->getToggle( "rememberpassword" ) . "
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</fieldset>\n\n" );
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</fieldset>\n</fieldset>\n" );
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# Quickbar setting
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#
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$wgOut->addHtml( "<fieldset>\n<legend>$qb:</legend>\n" );
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for ( $i = 0; $i < count( $qbs ); ++$i ) {
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if ( $i == $this->mQuickbar ) { $checked = ' checked="checked"'; }
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else { $checked = ""; }
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$wgOut->addHTML( "<div><label><input type='radio' name=\"wpQuickbar\"
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value=\"$i\"$checked /> {$qbs[$i]}</label></div>\n" );
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}
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$wgOut->addHtml( "</fieldset>\n\n" );
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# Skin setting
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#
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@ -414,23 +433,7 @@ class PreferencesForm {
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|||
<div><input type=\"button\" value=\"$tzGuess\" onClick=\"javascript:guessTimezone()\" /></div>
|
||||
</fieldset>\n\n" );
|
||||
|
||||
# Email, etc.
|
||||
#
|
||||
$this->mUserEmail = wfEscapeHTML( $this->mUserEmail );
|
||||
$this->mRealName = wfEscapeHTML( $this->mRealName );
|
||||
$this->mNick = wfEscapeHTML( $this->mNick );
|
||||
if ( $this->mEmailFlag ) { $emfc = 'checked="checked"'; }
|
||||
else { $emfc = ""; }
|
||||
|
||||
$ps = $this->namespacesCheckboxes();
|
||||
|
||||
$wgOut->addHTML( "<fieldset>
|
||||
<div><label>$yrn: <input type='text' name=\"wpRealName\" value=\"{$this->mRealName}\" size='20' /></label></div>
|
||||
<div><label>$yem: <input type='text' name=\"wpUserEmail\" value=\"{$this->mUserEmail}\" size='20' /></label></div>
|
||||
<div><label><input type='checkbox' $emfc value=\"1\" name=\"wpEmailFlag\" /> $emf</label></div>
|
||||
<div><label>$ynn: <input type='text' name=\"wpNick\" value=\"{$this->mNick}\" size='12' /></label></div>
|
||||
</fieldset>
|
||||
|
||||
$wgOut->addHTML( "
|
||||
<fieldset>
|
||||
<div><label>$rcc: <input type='text' name=\"wpRecent\" value=\"$this->mRecent\" size='6' /></label></div>
|
||||
" . $this->getToggle( "hideminor" ) .
|
||||
|
|
|
|||
|
|
@ -1,4 +1,5 @@
|
|||
<?php
|
||||
|
||||
# Main wiki script; see design.doc
|
||||
#
|
||||
$wgRequestTime = microtime();
|
||||
|
|
|
|||
|
|
@ -68,12 +68,20 @@ if($wgMetaNamespace === FALSE)
|
|||
'monobook' => "MonoBook"
|
||||
);
|
||||
|
||||
define( "MW_MATH_PNG", 0 );
|
||||
define( "MW_MATH_SIMPLE", 1 );
|
||||
define( "MW_MATH_HTML", 2 );
|
||||
define( "MW_MATH_SOURCE", 3 );
|
||||
define( "MW_MATH_MODERN", 4 );
|
||||
define( "MW_MATH_MATHML", 5 );
|
||||
|
||||
/* private */ $wgMathNamesEn = array(
|
||||
"Always render PNG",
|
||||
"HTML if very simple or else PNG",
|
||||
"HTML if possible or else PNG",
|
||||
"Leave it as TeX (for text browsers)",
|
||||
"Recommended for modern browsers"
|
||||
MW_MATH_PNG => "Always render PNG",
|
||||
MW_MATH_SIMPLE => "HTML if very simple or else PNG",
|
||||
MW_MATH_HTML => "HTML if possible or else PNG",
|
||||
MW_MATH_SOURCE => "Leave it as TeX (for text browsers)",
|
||||
MW_MATH_MODERN => "Recommended for modern browsers",
|
||||
MW_MATH_MATHML => "MathML if possible (experimental)",
|
||||
);
|
||||
|
||||
/* private */ $wgDateFormatsEn = array(
|
||||
|
|
|
|||
|
|
@ -49,6 +49,7 @@ $wgEditEncoding = "x";
|
|||
"HTMLigu se eble, aŭ PNG",
|
||||
"Lasu TeX-fonton (por tekstfoliumiloj)",
|
||||
"Rekomendita por modernaj foliumiloj",
|
||||
"MathML seeble (provizora)",
|
||||
);
|
||||
|
||||
/* private */ $wgUserTogglesEo = array(
|
||||
|
|
|
|||
Loading…
Reference in a new issue