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jpye |
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<?php |
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define(ASHIGHLIGHT_LANG_ROOT,"/usr/share/highlight/langDefs"); |
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class ASHighlight{ |
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function __construct($dir="/tmp",$default_lang="py"){ |
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$this->env=array(); |
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$this->dir=$dir; |
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$this->encoding="ascii"; |
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$this->line_numbers=false; |
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$this->tabwidth=0;//zero means that we haven't specified it |
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$this->default_lang=$default_lang; |
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} |
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function set_encoding($encoding="UTF-8"){ |
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$this->encoding=$encoding; |
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} |
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function enable_line_numbers(){ |
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$this->line_numbers = true; |
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} |
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function disable_line_numbers(){ |
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$this->line_numbers = false; |
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} |
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function start_line_numbers_at($start_line){ |
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$this->start_line = floor($start_line); |
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} |
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function set_tab_width($tabwidth){ |
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$this->tabwidth=floor($tabwidth); |
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} |
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function parse_code($text,$lang=""){ |
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$descriptorspec = array( |
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0 => array("pipe", "r"), // stdin is a pipe that the child will read from |
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1 => array("pipe", "w"), // stdout is a pipe that the child will write to |
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2 => array("pipe", "w") // stderr is another pipe that the child (might) write to |
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); |
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if(!$lang)$lang=$this->default_lang; |
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$cmd = "highlight --fragment" |
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." --syntax=".escapeshellarg($lang); |
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if($this->line_numbers){ |
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$cmd.=" --linenumbers"; |
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if(isset($this->start_line)){ |
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$cmd.=" --line-number-start=".$this->start_line; |
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} |
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} |
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// only if the tabwidth value is non-zero will this |
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// flag be shown |
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if($this->tabwidth)$cmd.=" --replace-tabs=".$this->tabwidth; |
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$css = $this->dir . "/" . "highlight.css"; |
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$cmd.=" --style-outfile=".escapeshellarg($css); |
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if(file_exists($css)){ |
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$this->error=-888; |
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$this->errmsg="'highlight.css' file already exists in ".$this->dir; |
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} |
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if(!$this->env)$this->env=array(); |
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$process = proc_open($cmd, $descriptorspec, $pipes, $this->dir, $this->env); |
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if(is_resource($process)) { |
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// $pipes now looks like this: |
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// 0 => writeable handle connected to child stdin |
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// 1 => readable handle connected to child stdout |
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// Any error output will be appended to /tmp/error-output.txt |
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fwrite($pipes[0], $text); |
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fclose($pipes[0]); |
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$out = stream_get_contents($pipes[1]); |
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fclose($pipes[1]); |
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$err = stream_get_contents($pipes[2]); |
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fclose($pipes[2]); |
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// It is important that you close any pipes before calling |
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// proc_close in order to avoid a deadlock |
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$this->error = proc_close($process); |
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if(!$this->error){ |
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if(file_exists($css)){ |
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$this->stylesheet = file_get_contents($css); |
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unlink($css); |
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return $out; |
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}else{ |
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$this->error=-777; |
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$this->stylesheet="kwa{font:bold}"; |
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$this->errmsg="'$css' was not created by $cmd (dir=$this->dir)"; |
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return $out; |
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} |
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}else{ |
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$this->errmsg = $err; |
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} |
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}else{ |
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$this->error = -999; |
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$this->errmsg="Process '$cmd' failed to start?"; |
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} |
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} |
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function get_stylesheet(){ |
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return $this->stylesheet; |
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} |
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} |
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?> |
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