update less.php to PHP 7.x compatible fork

3 files changed, 339 insertions, 0 deletions

diff --git a/lib/less.php/Exception/Chunk.php b/lib/less.php/Exception/Chunk.php
new file mode 100644
index 0000000..b9f0a5e
--- /dev/null
+++ b/lib/less.php/Exception/Chunk.php
@@ -0,0 +1,203 @@
+<?php

+

+/**

+ * Chunk Exception

+ *

+ * @package Less

+ * @subpackage exception

+ */

+class Less_Exception_Chunk extends Less_Exception_Parser{

+

+

+	protected $parserCurrentIndex = 0;

+

+	protected $emitFrom = 0;

+

+	protected $input_len;

+

+

+	/**

+	 * Constructor

+	 *

+	 * @param string $input

+	 * @param Exception $previous Previous exception

+	 * @param integer $index The current parser index

+	 * @param Less_FileInfo|string $currentFile The file

+	 * @param integer $code The exception code

+	 */

+	public function __construct($input, Exception $previous = null, $index = null, $currentFile = null, $code = 0){

+

+		$this->message = 'ParseError: Unexpected input'; //default message

+

+		$this->index = $index;

+

+		$this->currentFile = $currentFile;

+

+		$this->input = $input;

+		$this->input_len = strlen($input);

+

+		$this->Chunks();

+		$this->genMessage();

+	}

+

+

+	/**

+	 * See less.js chunks()

+	 * We don't actually need the chunks

+	 *

+	 */

+	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)) {

+				// a-z or whitespace

+				continue;

+			}

+

+			switch ($cc) {

+

+				// (

+				case 40:

+					$parenLevel++;

+					$lastParen = $this->parserCurrentIndex;

+					break;

+

+				// )

+				case 41:

+					$parenLevel--;

+					if( $parenLevel < 0 ){

+						return $this->fail("missing opening `(`");

+					}

+					break;

+

+				// ;

+				case 59:

+					//if (!$parenLevel) { $this->emitChunk();	}

+					break;

+

+				// {

+				case 123:

+					$level++;

+					$lastOpening = $this->parserCurrentIndex;

+					break;

+

+				// }

+				case 125:

+					$level--;

+					if( $level < 0 ){

+						return $this->fail("missing opening `{`");

+

+					}

+					//if (!$level && !$parenLevel) { $this->emitChunk(); }

+					break;

+				// \

+				case 92:

+					if ($this->parserCurrentIndex < $this->input_len - 1) { $this->parserCurrentIndex++; break; }

+					return $this->fail("unescaped `\\`");

+

+				// ", ' and `

+				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) { break; }

+					return $this->fail("unmatched `" . chr($cc) . "`", $currentChunkStartIndex);

+

+				// /, check for comment

+				case 47:

+					if ($parenLevel || ($this->parserCurrentIndex == $this->input_len - 1)) { break; }

+					$cc2 = $this->CharCode($this->parserCurrentIndex+1);

+					if ($cc2 == 47) {

+						// //, find lnfeed

+						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) {

+						// /*, find */

+						$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);

+						}

+					}

+					break;

+

+				// *, check for unmatched */

+				case 42:

+					if (($this->parserCurrentIndex < $this->input_len - 1) && ($this->CharCode($this->parserCurrentIndex+1) == 47)) {

+						return $this->fail("unmatched `/*`");

+					}

+					break;

+			}

+		}

+

+		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);

+		}

+

+

+		//chunk didn't fail

+

+

+		//$this->emitChunk(true);

+	}

+

+	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;

+	}

+

+

+	/*

+	function emitChunk( $force = false ){

+		$len = $this->parserCurrentIndex - $this->emitFrom;

+		if ((($len < 512) && !$force) || !$len) {

+			return;

+		}

+		$chunks[] = substr($this->input, $this->emitFrom, $this->parserCurrentIndex + 1 - $this->emitFrom );

+		$this->emitFrom = $this->parserCurrentIndex + 1;

+	}

+	*/

+

+}

diff --git a/lib/less.php/Exception/Compiler.php b/lib/less.php/Exception/Compiler.php
new file mode 100644
index 0000000..b645f61
--- /dev/null
+++ b/lib/less.php/Exception/Compiler.php
@@ -0,0 +1,11 @@
+<?php

+

+/**

+ * Compiler Exception

+ *

+ * @package Less

+ * @subpackage exception

+ */

+class Less_Exception_Compiler extends Less_Exception_Parser{

+

+}
\ No newline at end of file
diff --git a/lib/less.php/Exception/Parser.php b/lib/less.php/Exception/Parser.php
new file mode 100644
index 0000000..d6a419d
--- /dev/null
+++ b/lib/less.php/Exception/Parser.php
@@ -0,0 +1,125 @@
+<?php

+

+/**

+ * Parser Exception

+ *

+ * @package Less

+ * @subpackage exception

+ */

+class Less_Exception_Parser extends Exception{

+

+	/**

+	 * The current file

+	 *

+	 * @var Less_ImportedFile

+	 */

+	public $currentFile;

+

+	/**

+	 * The current parser index

+	 *

+	 * @var integer

+	 */

+	public $index;

+

+	protected $input;

+

+	protected $details = array();

+

+

+	/**

+	 * Constructor

+	 *

+	 * @param string $message

+	 * @param Exception $previous Previous exception

+	 * @param integer $index The current parser index

+	 * @param Less_FileInfo|string $currentFile The file

+	 * @param integer $code The exception code

+	 */

+	public function __construct($message = null, Exception $previous = null, $index = null, $currentFile = null, $code = 0){

+

+		if (PHP_VERSION_ID < 50300) {

+			$this->previous = $previous;

+			parent::__construct($message, $code);

+		} else {

+			parent::__construct($message, $code, $previous);

+		}

+

+		$this->currentFile = $currentFile;

+		$this->index = $index;

+

+		$this->genMessage();

+	}

+

+

+	protected function getInput(){

+

+		if( !$this->input && $this->currentFile && $this->currentFile['filename'] && file_exists($this->currentFile['filename']) ){

+			$this->input = file_get_contents( $this->currentFile['filename'] );

+		}

+	}

+

+

+

+	/**

+	 * Converts the exception to string

+	 *

+	 * @return string

+	 */

+	public function genMessage(){

+

+		if( $this->currentFile && $this->currentFile['filename'] ){

+			$this->message .= ' in '.basename($this->currentFile['filename']);

+		}

+

+		if( $this->index !== null ){

+			$this->getInput();

+			if( $this->input ){

+				$line = self::getLineNumber();

+				$this->message .= ' on line '.$line.', column '.self::getColumn();

+

+				$lines = explode("\n",$this->input);

+

+				$count = count($lines);

+				$start_line = max(0, $line-3);

+				$last_line = min($count, $start_line+6);

+				$num_len = strlen($last_line);

+				for( $i = $start_line; $i < $last_line; $i++ ){

+					$this->message .= "\n".str_pad($i+1,$num_len,'0',STR_PAD_LEFT).'| '.$lines[$i];

+				}

+			}

+		}

+

+	}

+

+	/**

+	 * Returns the line number the error was encountered

+	 *

+	 * @return integer

+	 */

+	public function getLineNumber(){

+		if( $this->index ){

+			// https://bugs.php.net/bug.php?id=49790

+			if (ini_get("mbstring.func_overload")) {

+				return substr_count(substr($this->input, 0, $this->index), "\n") + 1;

+			} else {

+				return substr_count($this->input, "\n", 0, $this->index) + 1;

+			}

+		}

+		return 1;

+	}

+

+

+	/**

+	 * Returns the column the error was encountered

+	 *

+	 * @return integer

+	 */

+	public function getColumn(){

+

+		$part = substr($this->input, 0, $this->index);

+		$pos = strrpos($part,"\n");

+		return $this->index - $pos;

+	}

+

+}