/usr/share/php/XML/HTMLSax3/States.php is in php-xml-htmlsax3 3.0.0+cvs01112007-2.
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
//
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject toversion 3.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/3_0.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Alexander Zhukov <alex@veresk.ru> Original port from Python |
// | Authors: Harry Fuecks <hfuecks@phppatterns.com> Port to PEAR + more |
// | Authors: Many @ Sitepointforums Advanced PHP Forums |
// +----------------------------------------------------------------------+
//
// $Id: States.php,v 1.3 2007/10/29 21:41:35 hfuecks Exp $
//
/**
* Parsing states.
* @package XML_HTMLSax3
* @version $Id: States.php,v 1.3 2007/10/29 21:41:35 hfuecks Exp $
*/
/**
* Define parser states
*/
define('XML_HTMLSAX3_STATE_STOP', 0);
define('XML_HTMLSAX3_STATE_START', 1);
define('XML_HTMLSAX3_STATE_TAG', 2);
define('XML_HTMLSAX3_STATE_OPENING_TAG', 3);
define('XML_HTMLSAX3_STATE_CLOSING_TAG', 4);
define('XML_HTMLSAX3_STATE_ESCAPE', 6);
define('XML_HTMLSAX3_STATE_JASP', 7);
define('XML_HTMLSAX3_STATE_PI', 8);
/**
* StartingState searches for the start of any XML tag
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_StartingState {
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant XML_HTMLSAX3_STATE_TAG
* @access protected
*/
function parse(&$context) {
$data = $context->scanUntilString('<');
if ($data != '') {
$context->handler_object_data->
{$context->handler_method_data}($context->htmlsax, $data);
}
$context->IgnoreCharacter();
return XML_HTMLSAX3_STATE_TAG;
}
}
/**
* Decides which state to move one from after StartingState
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_TagState {
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant the next state to move into
* @access protected
*/
function parse(&$context) {
switch($context->ScanCharacter()) {
case '/':
return XML_HTMLSAX3_STATE_CLOSING_TAG;
break;
case '?':
return XML_HTMLSAX3_STATE_PI;
break;
case '%':
return XML_HTMLSAX3_STATE_JASP;
break;
case '!':
return XML_HTMLSAX3_STATE_ESCAPE;
break;
default:
$context->unscanCharacter();
return XML_HTMLSAX3_STATE_OPENING_TAG;
}
}
}
/**
* Dealing with closing XML tags
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_ClosingTagState {
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant XML_HTMLSAX3_STATE_START
* @access protected
*/
function parse(&$context) {
$tag = $context->scanUntilCharacters('/>');
if ($tag != '') {
$char = $context->scanCharacter();
if ($char == '/') {
$char = $context->scanCharacter();
if ($char != '>') {
$context->unscanCharacter();
}
}
$context->handler_object_element->
{$context->handler_method_closing}($context->htmlsax, $tag, FALSE);
}
return XML_HTMLSAX3_STATE_START;
}
}
/**
* Dealing with opening XML tags
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_OpeningTagState {
/**
* Handles attributes
* @param string attribute name
* @param string attribute value
* @return void
* @access protected
* @see XML_HTMLSax3_AttributeStartState
*/
function parseAttributes(&$context) {
$Attributes = array();
$context->ignoreWhitespace();
$attributename = $context->scanUntilCharacters("=/> \n\r\t");
while ($attributename != '') {
$attributevalue = NULL;
$context->ignoreWhitespace();
$char = $context->scanCharacter();
if ($char == '=') {
$context->ignoreWhitespace();
$char = $context->ScanCharacter();
if ($char == '"') {
$attributevalue= $context->scanUntilString('"');
$context->IgnoreCharacter();
} else if ($char == "'") {
$attributevalue = $context->scanUntilString("'");
$context->IgnoreCharacter();
} else {
$context->unscanCharacter();
$attributevalue =
$context->scanUntilCharacters("> \n\r\t");
}
} else if ($char !== NULL) {
$attributevalue = NULL;
$context->unscanCharacter();
}
$Attributes[$attributename] = $attributevalue;
$context->ignoreWhitespace();
$attributename = $context->scanUntilCharacters("=/> \n\r\t");
}
return $Attributes;
}
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant XML_HTMLSAX3_STATE_START
* @access protected
*/
function parse(&$context) {
$tag = $context->scanUntilCharacters("/> \n\r\t");
if ($tag != '') {
$this->attrs = array();
$Attributes = $this->parseAttributes($context);
$char = $context->scanCharacter();
if ($char == '/') {
$char = $context->scanCharacter();
if ($char != '>') {
$context->unscanCharacter();
}
$context->handler_object_element->
{$context->handler_method_opening}($context->htmlsax, $tag,
$Attributes, TRUE);
$context->handler_object_element->
{$context->handler_method_closing}($context->htmlsax, $tag,
TRUE);
} else {
$context->handler_object_element->
{$context->handler_method_opening}($context->htmlsax, $tag,
$Attributes, FALSE);
}
}
return XML_HTMLSAX3_STATE_START;
}
}
/**
* Deals with XML escapes handling comments and CDATA correctly
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_EscapeState {
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant XML_HTMLSAX3_STATE_START
* @access protected
*/
function parse(&$context) {
$char = $context->ScanCharacter();
if ($char == '-') {
$char = $context->ScanCharacter();
if ($char == '-') {
$context->unscanCharacter();
$context->unscanCharacter();
$text = $context->scanUntilString('-->');
$text .= $context->scanCharacter();
$text .= $context->scanCharacter();
} else {
$context->unscanCharacter();
$text = $context->scanUntilString('>');
}
} else if ( $char == '[') {
$context->unscanCharacter();
$text = $context->scanUntilString(']>');
$text.= $context->scanCharacter();
} else {
$context->unscanCharacter();
$text = $context->scanUntilString('>');
}
$context->IgnoreCharacter();
if ($text != '') {
$context->handler_object_escape->
{$context->handler_method_escape}($context->htmlsax, $text);
}
return XML_HTMLSAX3_STATE_START;
}
}
/**
* Deals with JASP/ASP markup
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_JaspState {
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant XML_HTMLSAX3_STATE_START
* @access protected
*/
function parse(&$context) {
$text = $context->scanUntilString('%>');
if ($text != '') {
$context->handler_object_jasp->
{$context->handler_method_jasp}($context->htmlsax, $text);
}
$context->IgnoreCharacter();
$context->IgnoreCharacter();
return XML_HTMLSAX3_STATE_START;
}
}
/**
* Deals with XML processing instructions
* @package XML_HTMLSax3
* @access protected
*/
class XML_HTMLSax3_PiState {
/**
* @param XML_HTMLSax3_StateParser subclass
* @return constant XML_HTMLSAX3_STATE_START
* @access protected
*/
function parse(&$context) {
$target = $context->scanUntilCharacters(" \n\r\t");
$data = $context->scanUntilString('?>');
if ($data != '') {
$context->handler_object_pi->
{$context->handler_method_pi}($context->htmlsax, $target, $data);
}
$context->IgnoreCharacter();
$context->IgnoreCharacter();
return XML_HTMLSAX3_STATE_START;
}
}
?>
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