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126 lines
2.6 KiB
PHP
126 lines
2.6 KiB
PHP
<?php
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/**
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* Parser Exception
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*
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* @package Less
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* @subpackage exception
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*/
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class Less_Exception_Parser extends Exception{
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/**
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* The current file
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*
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* @var Less_ImportedFile
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*/
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public $currentFile;
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/**
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* The current parser index
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*
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* @var integer
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*/
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public $index;
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protected $input;
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protected $details = array();
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/**
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* Constructor
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*
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* @param string $message
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* @param Exception $previous Previous exception
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* @param integer $index The current parser index
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* @param Less_FileInfo|string $currentFile The file
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* @param integer $code The exception code
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*/
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public function __construct($message = null, Exception $previous = null, $index = null, $currentFile = null, $code = 0){
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if (PHP_VERSION_ID < 50300) {
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$this->previous = $previous;
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parent::__construct($message, $code);
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} else {
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parent::__construct($message, $code, $previous);
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}
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$this->currentFile = $currentFile;
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$this->index = $index;
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$this->genMessage();
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}
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protected function getInput(){
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if( !$this->input && $this->currentFile && $this->currentFile['filename'] && file_exists($this->currentFile['filename']) ){
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$this->input = file_get_contents( $this->currentFile['filename'] );
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}
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}
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/**
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* Converts the exception to string
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*
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* @return string
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*/
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public function genMessage(){
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if( $this->currentFile && $this->currentFile['filename'] ){
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$this->message .= ' in '.basename($this->currentFile['filename']);
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}
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if( $this->index !== null ){
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$this->getInput();
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if( $this->input ){
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$line = self::getLineNumber();
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$this->message .= ' on line '.$line.', column '.self::getColumn();
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$lines = explode("\n",$this->input);
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$count = count($lines);
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$start_line = max(0, $line-3);
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$last_line = min($count, $start_line+6);
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$num_len = strlen($last_line);
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for( $i = $start_line; $i < $last_line; $i++ ){
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$this->message .= "\n".str_pad($i+1,$num_len,'0',STR_PAD_LEFT).'| '.$lines[$i];
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}
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}
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}
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}
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/**
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* Returns the line number the error was encountered
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*
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* @return integer
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*/
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public function getLineNumber(){
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if( $this->index ){
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// https://bugs.php.net/bug.php?id=49790
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if (ini_get("mbstring.func_overload")) {
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return substr_count(substr($this->input, 0, $this->index), "\n") + 1;
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} else {
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return substr_count($this->input, "\n", 0, $this->index) + 1;
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}
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}
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return 1;
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}
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/**
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* Returns the column the error was encountered
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*
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* @return integer
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*/
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public function getColumn(){
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$part = substr($this->input, 0, $this->index);
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$pos = strrpos($part,"\n");
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return $this->index - $pos;
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}
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}
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