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Diffstat (limited to 'buildscripts/phing/classes/phing/parser/ExpatParser.php')
| -rw-r--r-- | buildscripts/phing/classes/phing/parser/ExpatParser.php | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/buildscripts/phing/classes/phing/parser/ExpatParser.php b/buildscripts/phing/classes/phing/parser/ExpatParser.php new file mode 100644 index 00000000..82046f8d --- /dev/null +++ b/buildscripts/phing/classes/phing/parser/ExpatParser.php @@ -0,0 +1,140 @@ +<?php +/* + * $Id: ExpatParser.php,v 1.8 2005/05/26 13:10:52 mrook Exp $ + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This software consists of voluntary contributions made by many individuals + * and is licensed under the LGPL. For more information please see + * <http://phing.info>. + */ + +require_once 'phing/parser/AbstractSAXParser.php'; +include_once 'phing/parser/ExpatParseException.php'; +include_once 'phing/system/io/IOException.php'; +include_once 'phing/system/io/FileReader.php'; + +/** + * This class is a wrapper for the PHP's internal expat parser. + * + * It takes an XML file represented by a abstract path name, and starts + * parsing the file and calling the different "trap" methods inherited from + * the AbstractParser class. + * + * Those methods then invoke the represenatative methods in the registered + * handler classes. + * + * @author Andreas Aderhold <andi@binarycloud.com> + * @copyright © 2001,2002 THYRELL. All rights reserved + * @version $Revision: 1.8 $ $Date: 2005/05/26 13:10:52 $ + * @access public + * @package phing.parser + */ + +class ExpatParser extends AbstractSAXParser { + + /** @var resource */ + private $parser; + + /** @var Reader */ + private $reader; + + private $file; + + private $buffer = 4096; + + private $error_string = ""; + + private $line = 0; + + /** @var Location Current cursor pos in XML file. */ + private $location; + + /** + * Constructs a new ExpatParser object. + * + * The constructor accepts a PhingFile object that represents the filename + * for the file to be parsed. It sets up php's internal expat parser + * and options. + * + * @param Reader $reader The Reader Object that is to be read from. + * @param string $filename Filename to read. + * @throws Exception if the given argument is not a PhingFile object + */ + function __construct(Reader $reader, $filename=null) { + + $this->reader = $reader; + if ($filename !== null) { + $this->file = new PhingFile($filename); + } + $this->parser = xml_parser_create(); + $this->buffer = 4096; + $this->location = new Location(); + xml_set_object($this->parser, $this); + xml_set_element_handler($this->parser, array($this,"startElement"),array($this,"endElement")); + xml_set_character_data_handler($this->parser, array($this, "characters")); + } + + /** + * Override PHP's parser default settings, created in the constructor. + * + * @param string the option to set + * @throws mixed the value to set + * @return boolean true if the option could be set, otherwise false + * @access public + */ + function parserSetOption($opt, $val) { + return xml_parser_set_option($this->parser, $opt, $val); + } + + /** + * Returns the location object of the current parsed element. It describes + * the location of the element within the XML file (line, char) + * + * @return object the location of the current parser + * @access public + */ + function getLocation() { + if ($this->file !== null) { + $path = $this->file->getAbsolutePath(); + } else { + $path = $this->reader->getResource(); + } + $this->location = new Location($path, xml_get_current_line_number($this->parser), xml_get_current_column_number($this->parser)); + return $this->location; + } + + /** + * Starts the parsing process. + * + * @param string the option to set + * @return int 1 if the parsing succeeded + * @throws ExpatParseException if something gone wrong during parsing + * @throws IOException if XML file can not be accessed + * @access public + */ + function parse() { + + while ( ($data = $this->reader->read()) !== -1 ) { + if (!xml_parse($this->parser, $data, $this->reader->eof())) { + $error = xml_error_string(xml_get_error_code($this->parser)); + $e = new ExpatParseException($error, $this->getLocation()); + xml_parser_free($this->parser); + throw $e; + } + } + xml_parser_free($this->parser); + + return 1; + } +} |