<?php
 class Less_Exception_Chunk extends Less_Exception_Parser{ protected $parserCurrentIndex = 0; protected $emitFrom = 0; protected $input_len; public function __construct($input, Exception $previous = null, $index = null, $currentFile = null, $code = 0){ $this->message = 'ParseError: Unexpected input'; $this->index = $index; $this->currentFile = $currentFile; $this->input = $input; $this->input_len = strlen($input); $this->Chunks(); $this->genMessage(); } protected function Chunks(){ $level = 0; $parenLevel = 0; $lastMultiCommentEndBrace = null; $lastOpening = null; $lastMultiComment = null; $lastParen = null; for( $this->parserCurrentIndex = 0; $this->parserCurrentIndex < $this->input_len; $this->parserCurrentIndex++ ){ $cc = $this->CharCode($this->parserCurrentIndex); if ((($cc >= 97) && ($cc <= 122)) || ($cc < 34)) { continue; } switch ($cc) { case 40: $parenLevel++; $lastParen = $this->parserCurrentIndex; continue; case 41: $parenLevel--; if( $parenLevel < 0 ){ return $this->fail("missing opening `(`"); } continue; case 59: continue; case 123: $level++; $lastOpening = $this->parserCurrentIndex; continue; case 125: $level--; if( $level < 0 ){ return $this->fail("missing opening `{`"); } continue; case 92: if ($this->parserCurrentIndex < $this->input_len - 1) { $this->parserCurrentIndex++; continue; } return $this->fail("unescaped `\\`"); case 34: case 39: case 96: $matched = 0; $currentChunkStartIndex = $this->parserCurrentIndex; for ($this->parserCurrentIndex = $this->parserCurrentIndex + 1; $this->parserCurrentIndex < $this->input_len; $this->parserCurrentIndex++) { $cc2 = $this->CharCode($this->parserCurrentIndex); if ($cc2 > 96) { continue; } if ($cc2 == $cc) { $matched = 1; break; } if ($cc2 == 92) { if ($this->parserCurrentIndex == $this->input_len - 1) { return $this->fail("unescaped `\\`"); } $this->parserCurrentIndex++; } } if ($matched) { continue; } return $this->fail("unmatched `" . chr($cc) . "`", $currentChunkStartIndex); case 47: if ($parenLevel || ($this->parserCurrentIndex == $this->input_len - 1)) { continue; } $cc2 = $this->CharCode($this->parserCurrentIndex+1); if ($cc2 == 47) { for ($this->parserCurrentIndex = $this->parserCurrentIndex + 2; $this->parserCurrentIndex < $this->input_len; $this->parserCurrentIndex++) { $cc2 = $this->CharCode($this->parserCurrentIndex); if (($cc2 <= 13) && (($cc2 == 10) || ($cc2 == 13))) { break; } } } else if ($cc2 == 42) { $lastMultiComment = $currentChunkStartIndex = $this->parserCurrentIndex; for ($this->parserCurrentIndex = $this->parserCurrentIndex + 2; $this->parserCurrentIndex < $this->input_len - 1; $this->parserCurrentIndex++) { $cc2 = $this->CharCode($this->parserCurrentIndex); if ($cc2 == 125) { $lastMultiCommentEndBrace = $this->parserCurrentIndex; } if ($cc2 != 42) { continue; } if ($this->CharCode($this->parserCurrentIndex+1) == 47) { break; } } if ($this->parserCurrentIndex == $this->input_len - 1) { return $this->fail("missing closing `*/`", $currentChunkStartIndex); } } continue; case 42: if (($this->parserCurrentIndex < $this->input_len - 1) && ($this->CharCode($this->parserCurrentIndex+1) == 47)) { return $this->fail("unmatched `/*`"); } continue; } } if( $level !== 0 ){ if( ($lastMultiComment > $lastOpening) && ($lastMultiCommentEndBrace > $lastMultiComment) ){ return $this->fail("missing closing `}` or `*/`", $lastOpening); } else { return $this->fail("missing closing `}`", $lastOpening); } } else if ( $parenLevel !== 0 ){ return $this->fail("missing closing `)`", $lastParen); } } public function CharCode($pos){ return ord($this->input[$pos]); } public function fail( $msg, $index = null ){ if( !$index ){ $this->index = $this->parserCurrentIndex; }else{ $this->index = $index; } $this->message = 'ParseError: '.$msg; } } 