<commit_before><?php

class GraphViz{
    private $graph;
    
    /**
     * file output format to use
     * 
     * @var string
     * @see GraphViz::setFormat()
     */
    private $format = 'png';
    
    private $layoutGraph = array();
    private $layoutVertex = array();
    private $layoutEdge = array();
    
    private $meta = array();
    
    const EOL = PHP_EOL;
    
	public function __construct(Graph $graphToPlot){
		$this->graph = $graphToPlot;
	}
	
	/**
	 * get original graph (with no layout and styles)
	 * 
	 * @return Graph
	 */
	public function getGraph(){
		return $this->graph;
	}
	
	/**
	 * set graph image output format
	 * 
	 * @param string $format png, svg, ps2, etc. (see 'man dot' for details on parameter '-T') 
	 * @return GraphViz $this (chainable)
	 */
	public function setFormat($format){
	    $this->format = $format;
	    return $this;
	}
	
	/**
	 * create and display image for this graph
	 * 
	 * @return void
	 * @uses GraphViz::createImageFile()
	 */
	public function display(){
        //echo "Generate picture ...";
        $tmp = $this->createImageFile();
        
        static $next = 0;
        if($next > microtime(true)){
            echo '[delay flooding xdg-open]'.PHP_EOL; // wait some time between calling xdg-open because earlier calls will be ignored otherwise
            sleep(1);
        }
        
        if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
            echo "ausgabe\n";
        	exec($tmp.' >NUL');
        } else {
        	exec('xdg-open '.escapeshellarg($tmp).' > /dev/null 2>&1 &'); // open image in background (redirect stdout to /dev/null, sterr to stdout and run in background)
        
        }
      
        $next = microtime(true) + 1.0;
        //echo "... done\n";
	}
	
	const LAYOUT_GRAPH = 1;
	const LAYOUT_EDGE = 2;
	const LAYOUT_VERTEX = 3;
	
	private function mergeLayout(&$old,$new){
		if($new === NULL){
			$old = array();
		}else{
			foreach($new as $key=>$value){
				if($value === NULL){
					unset($old[$key]);
				}else{
					$old[$key] = self::escape($value);
				}
			}
		}
	}
	
	public function setLayout($where,$layout,$value=NULL){
		if(!is_array($where)){
			$where = array($where);
		}
		if(func_num_args() > 2){
			$layout = array($layout=>$value);
		}
		foreach($where as $where){
			if($where === self::LAYOUT_GRAPH){
				$this->mergeLayout($this->layoutGraph,$layout);
			}else if($where === self::LAYOUT_EDGE){
				$this->mergeLayout($this->layoutEdge,$layout);
			}else if($where === self::LAYOUT_VERTEX){
				$this->mergeLayout($this->layoutVertex,$layout);
			}else if($where instanceof Edge || $where instanceof Vertex){
			    $where->setLayout($name,$value);
			}else{
				throw new Exception('Invalid layout identifier');
			}
		}
		return $this;
		// example code:
		
		// set global graph layout
		$this->setLayout(self::LAYOUT_GRAPH,'bgcolor','transparent');
		
		// assign multiple layout settings to all vertices
		$this->setLayout(self::LAYOUT_VERTEX,array('size'=>8,'color'=>'blue'));
		
		// assign layout to single edge
		$this->setLayout($graph->getVertexFirst(),'shape','square');
		
		// assign multiple layout settings to multiple edges
		$this->setLayout($alg->getEdges(),array('color'=>'red','style'=>'bold'));
		
		// ?? assign layout to vertexm, then delete vertex
		$vertex = $graph->createVertex();
		$this->setLayout($vertex,'color','red');
		$vertex->destroy();
		$this->display();
	}
	
	// end
	
	/**
	 * create base64-encoded image src target data to be used for html images
	 * 
	 * @return string
	 * @uses GraphViz::createImageFile()
	 */
	public function createImageSrc(){
	    $file = $this->createImageFile();
	    $base = base64_encode(file_get_contents($file));
	    unlink($file);
	    return 'data:image/png;base64,'.$base;
	}
	
	/**
	 * create image html code for this graph
	 * 
	 * @return string
	 * @uses GraphViz::createImageSrc()
	 */
	public function createImageHtml(){
	    return '<img src="'.$this->createImageSrc().'" />';
	}
	
	/**
	 * create image file for this graph
	 * 
	 * @return string filename
	 * @throws Exception on error
	 * @uses GraphViz::createScript()
	 */
	public function createImageFile(){
        $script = $this->createScript();
	    //var_dump($script);
	    <commit_msg>Restore helper for image data and proper svg handling<commit_after><?php

class GraphViz{
    private $graph;
    
    /**
     * file output format to use
     * 
     * @var string
     * @see GraphViz::setFormat()
     */
    private $format = 'png';
    
    private $layoutGraph = array();
    private $layoutVertex = array();
    private $layoutEdge = array();
    
    private $meta = array();
    
    const EOL = PHP_EOL;
    
	public function __construct(Graph $graphToPlot){
		$this->graph = $graphToPlot;
	}
	
	/**
	 * get original graph (with no layout and styles)
	 * 
	 * @return Graph
	 */
	public function getGraph(){
		return $this->graph;
	}
	
	/**
	 * set graph image output format
	 * 
	 * @param string $format png, svg, ps2, etc. (see 'man dot' for details on parameter '-T') 
	 * @return GraphViz $this (chainable)
	 */
	public function setFormat($format){
	    $this->format = $format;
	    return $this;
	}
	
	/**
	 * create and display image for this graph
	 * 
	 * @return void
	 * @uses GraphViz::createImageFile()
	 */
	public function display(){
        //echo "Generate picture ...";
        $tmp = $this->createImageFile();
        
        static $next = 0;
        if($next > microtime(true)){
            echo '[delay flooding xdg-open]'.PHP_EOL; // wait some time between calling xdg-open because earlier calls will be ignored otherwise
            sleep(1);
        }
        
        if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
            echo "ausgabe\n";
        	exec($tmp.' >NUL');
        } else {
        	exec('xdg-open '.escapeshellarg($tmp).' > /dev/null 2>&1 &'); // open image in background (redirect stdout to /dev/null, sterr to stdout and run in background)
        
        }
      
        $next = microtime(true) + 1.0;
        //echo "... done\n";
	}
	
	const LAYOUT_GRAPH = 1;
	const LAYOUT_EDGE = 2;
	const LAYOUT_VERTEX = 3;
	
	private function mergeLayout(&$old,$new){
		if($new === NULL){
			$old = array();
		}else{
			foreach($new as $key=>$value){
				if($value === NULL){
					unset($old[$key]);
				}else{
					$old[$key] = self::escape($value);
				}
			}
		}
	}
	
	public function setLayout($where,$layout,$value=NULL){
		if(!is_array($where)){
			$where = array($where);
		}
		if(func_num_args() > 2){
			$layout = array($layout=>$value);
		}
		foreach($where as $where){
			if($where === self::LAYOUT_GRAPH){
				$this->mergeLayout($this->layoutGraph,$layout);
			}else if($where === self::LAYOUT_EDGE){
				$this->mergeLayout($this->layoutEdge,$layout);
			}else if($where === self::LAYOUT_VERTEX){
				$this->mergeLayout($this->layoutVertex,$layout);
			}else if($where instanceof Edge || $where instanceof Vertex){
			    $where->setLayout($name,$value);
			}else{
				throw new Exception('Invalid layout identifier');
			}
		}
		return $this;
		// example code:
		
		// set global graph layout
		$this->setLayout(self::LAYOUT_GRAPH,'bgcolor','transparent');
		
		// assign multiple layout settings to all vertices
		$this->setLayout(self::LAYOUT_VERTEX,array('size'=>8,'color'=>'blue'));
		
		// assign layout to single edge
		$this->setLayout($graph->getVertexFirst(),'shape','square');
		
		// assign multiple layout settings to multiple edges
		$this->setLayout($alg->getEdges(),array('color'=>'red','style'=>'bold'));
		
		// ?? assign layout to vertexm, then delete vertex
		$vertex = $graph->createVertex();
		$this->setLayout($vertex,'color','red');
		$vertex->destroy();
		$this->display();
	}
	
	// end
	
	/**
	 * create image file data contents for this graph
	 * 
	 * @return string
	 * @uses GraphViz::createImageFile()
	 */
	public function createImageData(){
	    $file = $this->createImageFile();
	    $data = file_get_contents($file);
	    unlink($file);
	    return $data;
	}
	
	/**
	 * create base64-encoded image src target data to be used for html images
	 * 
	 * @return string
	 * @uses GraphViz::createImageData()
	 */
	public function createImageSrc(){
	    $format = ($this->format === 'svg' || $this->format === 'svgz') ? 'svg+xml' : $this->format;
	    return 'data:image/'.$format.';base64,'.base64_encode($this->createImageData());
	}
	
	/**
	 * create image html code for this graph
	 * 
	 * @return string
	 * @uses GraphViz::createImageSrc()
	 */
	public function createImageHtml(){
	    if($this->format === 'svg' || $this->format === 'svgz'){
	        return '<object type="image/svg+xml" data="'.$this->createImageSrc().'"></object>';
	    }
	    return '<img src="'.$this->createImageSrc().'" />';
	}
	
	/**
	 * create image file for this graph
	 * 
	 * @return string filename
	 * @throws Exception on error
	 * @uses GraphViz::createScript()
	 */
	public function createImageFile(){
        $script = $this->createScript();
	    //var_dump($script);
	    
{'fraction_non_alphanumeric': 0.1670353982300885, 'fraction_numerical': 0.004424778761061947, 'mean_word_length': 2.917244367417678, 'pattern_counts': {'":': 0, '<': 9, '<?xml version=': 0, '>': 84, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 2}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5766778', 'n_tokens_mistral': 3167, 'n_tokens_neox': 2793, 'n_words': 704}