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Diffstat (limited to 'tests/test_tools/simpletest/parser.php')
| -rw-r--r-- | tests/test_tools/simpletest/parser.php | 772 |
1 files changed, 0 insertions, 772 deletions
diff --git a/tests/test_tools/simpletest/parser.php b/tests/test_tools/simpletest/parser.php deleted file mode 100644 index 94fd40d0..00000000 --- a/tests/test_tools/simpletest/parser.php +++ /dev/null @@ -1,772 +0,0 @@ -<?php - /** - * base include file for SimpleTest - * @package SimpleTest - * @subpackage MockObjects - * @version $Id: parser.php 1532 2006-12-01 12:28:55Z xue $ - */ - - /**#@+ - * Lexer mode stack constants - */ - if (! defined('LEXER_ENTER')) { - define('LEXER_ENTER', 1); - } - if (! defined('LEXER_MATCHED')) { - define('LEXER_MATCHED', 2); - } - if (! defined('LEXER_UNMATCHED')) { - define('LEXER_UNMATCHED', 3); - } - if (! defined('LEXER_EXIT')) { - define('LEXER_EXIT', 4); - } - if (! defined('LEXER_SPECIAL')) { - define('LEXER_SPECIAL', 5); - } - /**#@-*/ - - /** - * Compounded regular expression. Any of - * the contained patterns could match and - * when one does, it's label is returned. - * @package SimpleTest - * @subpackage WebTester - */ - class ParallelRegex { - protected $_patterns; - protected $_labels; - protected $_regex; - protected $_case; - - /** - * Constructor. Starts with no patterns. - * @param boolean $case True for case sensitive, false - * for insensitive. - * @access public - */ - function ParallelRegex($case) { - $this->_case = $case; - $this->_patterns = array(); - $this->_labels = array(); - $this->_regex = null; - } - - /** - * Adds a pattern with an optional label. - * @param string $pattern Perl style regex, but ( and ) - * lose the usual meaning. - * @param string $label Label of regex to be returned - * on a match. - * @access public - */ - function addPattern($pattern, $label = true) { - $count = count($this->_patterns); - $this->_patterns[$count] = $pattern; - $this->_labels[$count] = $label; - $this->_regex = null; - } - - /** - * Attempts to match all patterns at once against - * a string. - * @param string $subject String to match against. - * @param string $match First matched portion of - * subject. - * @return boolean True on success. - * @access public - */ - function match($subject, $match) { - if (count($this->_patterns) == 0) { - return false; - } - if (! preg_match($this->_getCompoundedRegex(), $subject, $matches)) { - $match = ''; - return false; - } - $match = $matches[0]; - for ($i = 1; $i < count($matches); $i++) { - if ($matches[$i]) { - return $this->_labels[$i - 1]; - } - } - return true; - } - - /** - * Compounds the patterns into a single - * regular expression separated with the - * "or" operator. Caches the regex. - * Will automatically escape (, ) and / tokens. - * @param array $patterns List of patterns in order. - * @access private - */ - function _getCompoundedRegex() { - if ($this->_regex == null) { - for ($i = 0, $count = count($this->_patterns); $i < $count; $i++) { - $this->_patterns[$i] = '(' . str_replace( - array('/', '(', ')'), - array('\/', '\(', '\)'), - $this->_patterns[$i]) . ')'; - } - $this->_regex = "/" . implode("|", $this->_patterns) . "/" . $this->_getPerlMatchingFlags(); - } - return $this->_regex; - } - - /** - * Accessor for perl regex mode flags to use. - * @return string Perl regex flags. - * @access private - */ - function _getPerlMatchingFlags() { - return ($this->_case ? "msS" : "msSi"); - } - } - - /** - * States for a stack machine. - * @package SimpleTest - * @subpackage WebTester - */ - class SimpleStateStack { - protected $_stack; - - /** - * Constructor. Starts in named state. - * @param string $start Starting state name. - * @access public - */ - function SimpleStateStack($start) { - $this->_stack = array($start); - } - - /** - * Accessor for current state. - * @return string State. - * @access public - */ - function getCurrent() { - return $this->_stack[count($this->_stack) - 1]; - } - - /** - * Adds a state to the stack and sets it - * to be the current state. - * @param string $state New state. - * @access public - */ - function enter($state) { - array_push($this->_stack, $state); - } - - /** - * Leaves the current state and reverts - * to the previous one. - * @return boolean False if we drop off - * the bottom of the list. - * @access public - */ - function leave() { - if (count($this->_stack) == 1) { - return false; - } - array_pop($this->_stack); - return true; - } - } - - /** - * Accepts text and breaks it into tokens. - * Some optimisation to make the sure the - * content is only scanned by the PHP regex - * parser once. Lexer modes must not start - * with leading underscores. - * @package SimpleTest - * @subpackage WebTester - */ - class SimpleLexer { - protected $_regexes; - protected $_parser; - protected $_mode; - protected $_mode_handlers; - protected $_case; - - /** - * Sets up the lexer in case insensitive matching - * by default. - * @param SimpleSaxParser $parser Handling strategy by - * reference. - * @param string $start Starting handler. - * @param boolean $case True for case sensitive. - * @access public - */ - function SimpleLexer($parser, $start = "accept", $case = false) { - $this->_case = $case; - $this->_regexes = array(); - $this->_parser = $parser; - $this->_mode = new SimpleStateStack($start); - $this->_mode_handlers = array($start => $start); - } - - /** - * Adds a token search pattern for a particular - * parsing mode. The pattern does not change the - * current mode. - * @param string $pattern Perl style regex, but ( and ) - * lose the usual meaning. - * @param string $mode Should only apply this - * pattern when dealing with - * this type of input. - * @access public - */ - function addPattern($pattern, $mode = "accept") { - if (! isset($this->_regexes[$mode])) { - $this->_regexes[$mode] = new ParallelRegex($this->_case); - } - $this->_regexes[$mode]->addPattern($pattern); - if (! isset($this->_mode_handlers[$mode])) { - $this->_mode_handlers[$mode] = $mode; - } - } - - /** - * Adds a pattern that will enter a new parsing - * mode. Useful for entering parenthesis, strings, - * tags, etc. - * @param string $pattern Perl style regex, but ( and ) - * lose the usual meaning. - * @param string $mode Should only apply this - * pattern when dealing with - * this type of input. - * @param string $new_mode Change parsing to this new - * nested mode. - * @access public - */ - function addEntryPattern($pattern, $mode, $new_mode) { - if (! isset($this->_regexes[$mode])) { - $this->_regexes[$mode] = new ParallelRegex($this->_case); - } - $this->_regexes[$mode]->addPattern($pattern, $new_mode); - if (! isset($this->_mode_handlers[$new_mode])) { - $this->_mode_handlers[$new_mode] = $new_mode; - } - } - - /** - * Adds a pattern that will exit the current mode - * and re-enter the previous one. - * @param string $pattern Perl style regex, but ( and ) - * lose the usual meaning. - * @param string $mode Mode to leave. - * @access public - */ - function addExitPattern($pattern, $mode) { - if (! isset($this->_regexes[$mode])) { - $this->_regexes[$mode] = new ParallelRegex($this->_case); - } - $this->_regexes[$mode]->addPattern($pattern, "__exit"); - if (! isset($this->_mode_handlers[$mode])) { - $this->_mode_handlers[$mode] = $mode; - } - } - - /** - * Adds a pattern that has a special mode. Acts as an entry - * and exit pattern in one go, effectively calling a special - * parser handler for this token only. - * @param string $pattern Perl style regex, but ( and ) - * lose the usual meaning. - * @param string $mode Should only apply this - * pattern when dealing with - * this type of input. - * @param string $special Use this mode for this one token. - * @access public - */ - function addSpecialPattern($pattern, $mode, $special) { - if (! isset($this->_regexes[$mode])) { - $this->_regexes[$mode] = new ParallelRegex($this->_case); - } - $this->_regexes[$mode]->addPattern($pattern, "_$special"); - if (! isset($this->_mode_handlers[$special])) { - $this->_mode_handlers[$special] = $special; - } - } - - /** - * Adds a mapping from a mode to another handler. - * @param string $mode Mode to be remapped. - * @param string $handler New target handler. - * @access public - */ - function mapHandler($mode, $handler) { - $this->_mode_handlers[$mode] = $handler; - } - - /** - * Splits the page text into tokens. Will fail - * if the handlers report an error or if no - * content is consumed. If successful then each - * unparsed and parsed token invokes a call to the - * held listener. - * @param string $raw Raw HTML text. - * @return boolean True on success, else false. - * @access public - */ - function parse($raw) { - if (! isset($this->_parser)) { - return false; - } - $length = strlen($raw); - while (is_array($parsed = $this->_reduce($raw))) { - list($raw, $unmatched, $matched, $mode) = $parsed; - if (! $this->_dispatchTokens($unmatched, $matched, $mode)) { - return false; - } - if ($raw === '') { - return true; - } - if (strlen($raw) == $length) { - return false; - } - $length = strlen($raw); - } - if (! $parsed) { - return false; - } - return $this->_invokeParser($raw, LEXER_UNMATCHED); - } - - /** - * Sends the matched token and any leading unmatched - * text to the parser changing the lexer to a new - * mode if one is listed. - * @param string $unmatched Unmatched leading portion. - * @param string $matched Actual token match. - * @param string $mode Mode after match. A boolean - * false mode causes no change. - * @return boolean False if there was any error - * from the parser. - * @access private - */ - function _dispatchTokens($unmatched, $matched, $mode = false) { - if (! $this->_invokeParser($unmatched, LEXER_UNMATCHED)) { - return false; - } - if (is_bool($mode)) { - return $this->_invokeParser($matched, LEXER_MATCHED); - } - if ($this->_isModeEnd($mode)) { - if (! $this->_invokeParser($matched, LEXER_EXIT)) { - return false; - } - return $this->_mode->leave(); - } - if ($this->_isSpecialMode($mode)) { - $this->_mode->enter($this->_decodeSpecial($mode)); - if (! $this->_invokeParser($matched, LEXER_SPECIAL)) { - return false; - } - return $this->_mode->leave(); - } - $this->_mode->enter($mode); - return $this->_invokeParser($matched, LEXER_ENTER); - } - - /** - * Tests to see if the new mode is actually to leave - * the current mode and pop an item from the matching - * mode stack. - * @param string $mode Mode to test. - * @return boolean True if this is the exit mode. - * @access private - */ - function _isModeEnd($mode) { - return ($mode === "__exit"); - } - - /** - * Test to see if the mode is one where this mode - * is entered for this token only and automatically - * leaves immediately afterwoods. - * @param string $mode Mode to test. - * @return boolean True if this is the exit mode. - * @access private - */ - function _isSpecialMode($mode) { - return (strncmp($mode, "_", 1) == 0); - } - - /** - * Strips the magic underscore marking single token - * modes. - * @param string $mode Mode to decode. - * @return string Underlying mode name. - * @access private - */ - function _decodeSpecial($mode) { - return substr($mode, 1); - } - - /** - * Calls the parser method named after the current - * mode. Empty content will be ignored. The lexer - * has a parser handler for each mode in the lexer. - * @param string $content Text parsed. - * @param boolean $is_match Token is recognised rather - * than unparsed data. - * @access private - */ - function _invokeParser($content, $is_match) { - if (($content === '') || ($content === false)) { - return true; - } - $handler = $this->_mode_handlers[$this->_mode->getCurrent()]; - return $this->_parser->$handler($content, $is_match); - } - - /** - * Tries to match a chunk of text and if successful - * removes the recognised chunk and any leading - * unparsed data. Empty strings will not be matched. - * @param string $raw The subject to parse. This is the - * content that will be eaten. - * @return array/boolean Three item list of unparsed - * content followed by the - * recognised token and finally the - * action the parser is to take. - * True if no match, false if there - * is a parsing error. - * @access private - */ - function _reduce($raw) { - if ($action = $this->_regexes[$this->_mode->getCurrent()]->match($raw, $match)) { - $unparsed_character_count = strpos($raw, $match); - $unparsed = substr($raw, 0, $unparsed_character_count); - $raw = substr($raw, $unparsed_character_count + strlen($match)); - return array($raw, $unparsed, $match, $action); - } - return true; - } - } - - /** - * Breas HTML into SAX events. - * @package SimpleTest - * @subpackage WebTester - */ - class SimpleHtmlLexer extends SimpleLexer { - - /** - * Sets up the lexer with case insensitive matching - * and adds the HTML handlers. - * @param SimpleSaxParser $parser Handling strategy by - * reference. - * @access public - */ - function SimpleHtmlLexer($parser) { - $this->SimpleLexer($parser, 'text'); - $this->mapHandler('text', 'acceptTextToken'); - $this->_addSkipping(); - foreach ($this->_getParsedTags() as $tag) { - $this->_addTag($tag); - } - $this->_addInTagTokens(); - } - - /** - * List of parsed tags. Others are ignored. - * @return array List of searched for tags. - * @access private - */ - function _getParsedTags() { - return array('a', 'title', 'form', 'input', 'button', 'textarea', 'select', - 'option', 'frameset', 'frame', 'label'); - } - - /** - * The lexer has to skip certain sections such - * as server code, client code and styles. - * @access private - */ - function _addSkipping() { - $this->mapHandler('css', 'ignore'); - $this->addEntryPattern('<style', 'text', 'css'); - $this->addExitPattern('</style>', 'css'); - $this->mapHandler('js', 'ignore'); - $this->addEntryPattern('<script', 'text', 'js'); - $this->addExitPattern('</script>', 'js'); - $this->mapHandler('comment', 'ignore'); - $this->addEntryPattern('<!--', 'text', 'comment'); - $this->addExitPattern('-->', 'comment'); - } - - /** - * Pattern matches to start and end a tag. - * @param string $tag Name of tag to scan for. - * @access private - */ - function _addTag($tag) { - $this->addSpecialPattern("</$tag>", 'text', 'acceptEndToken'); - $this->addEntryPattern("<$tag", 'text', 'tag'); - } - - /** - * Pattern matches to parse the inside of a tag - * including the attributes and their quoting. - * @access private - */ - function _addInTagTokens() { - $this->mapHandler('tag', 'acceptStartToken'); - $this->addSpecialPattern('\s+', 'tag', 'ignore'); - $this->_addAttributeTokens(); - $this->addExitPattern('/>', 'tag'); - $this->addExitPattern('>', 'tag'); - } - - /** - * Matches attributes that are either single quoted, - * double quoted or unquoted. - * @access private - */ - function _addAttributeTokens() { - $this->mapHandler('dq_attribute', 'acceptAttributeToken'); - $this->addEntryPattern('=\s*"', 'tag', 'dq_attribute'); - $this->addPattern("\\\\\"", 'dq_attribute'); - $this->addExitPattern('"', 'dq_attribute'); - $this->mapHandler('sq_attribute', 'acceptAttributeToken'); - $this->addEntryPattern("=\s*'", 'tag', 'sq_attribute'); - $this->addPattern("\\\\'", 'sq_attribute'); - $this->addExitPattern("'", 'sq_attribute'); - $this->mapHandler('uq_attribute', 'acceptAttributeToken'); - $this->addSpecialPattern('=\s*[^>\s]*', 'tag', 'uq_attribute'); - } - } - - /** - * Converts HTML tokens into selected SAX events. - * @package SimpleTest - * @subpackage WebTester - */ - class SimpleHtmlSaxParser { - protected $_lexer; - protected $_listener; - protected $_tag; - protected $_attributes; - protected $_current_attribute; - - /** - * Sets the listener. - * @param SimpleSaxListener $listener SAX event handler. - * @access public - */ - function SimpleHtmlSaxParser($listener) { - $this->_listener = $listener; - $this->_lexer = $this->createLexer($this); - $this->_tag = ''; - $this->_attributes = array(); - $this->_current_attribute = ''; - } - - /** - * Runs the content through the lexer which - * should call back to the acceptors. - * @param string $raw Page text to parse. - * @return boolean False if parse error. - * @access public - */ - function parse($raw) { - return $this->_lexer->parse($raw); - } - - /** - * Sets up the matching lexer. Starts in 'text' mode. - * @param SimpleSaxParser $parser Event generator, usually $self. - * @return SimpleLexer Lexer suitable for this parser. - * @access public - * @static - */ - static function &createLexer($parser) { - $lexer = new SimpleHtmlLexer($parser); - return $lexer; - } - - /** - * Accepts a token from the tag mode. If the - * starting element completes then the element - * is dispatched and the current attributes - * set back to empty. The element or attribute - * name is converted to lower case. - * @param string $token Incoming characters. - * @param integer $event Lexer event type. - * @return boolean False if parse error. - * @access public - */ - function acceptStartToken($token, $event) { - if ($event == LEXER_ENTER) { - $this->_tag = strtolower(substr($token, 1)); - return true; - } - if ($event == LEXER_EXIT) { - $success = $this->_listener->startElement( - $this->_tag, - $this->_attributes); - $this->_tag = ''; - $this->_attributes = array(); - return $success; - } - if ($token != '=') { - $this->_current_attribute = strtolower(SimpleHtmlSaxParser::decodeHtml($token)); - $this->_attributes[$this->_current_attribute] = ''; - } - return true; - } - - /** - * Accepts a token from the end tag mode. - * The element name is converted to lower case. - * @param string $token Incoming characters. - * @param integer $event Lexer event type. - * @return boolean False if parse error. - * @access public - */ - function acceptEndToken($token, $event) { - if (! preg_match('/<\/(.*)>/', $token, $matches)) { - return false; - } - return $this->_listener->endElement(strtolower($matches[1])); - } - - /** - * Part of the tag data. - * @param string $token Incoming characters. - * @param integer $event Lexer event type. - * @return boolean False if parse error. - * @access public - */ - function acceptAttributeToken($token, $event) { - if ($event == LEXER_UNMATCHED) { - $this->_attributes[$this->_current_attribute] .= - SimpleHtmlSaxParser::decodeHtml($token); - } - if ($event == LEXER_SPECIAL) { - $this->_attributes[$this->_current_attribute] .= - preg_replace('/^=\s*/' , '', SimpleHtmlSaxParser::decodeHtml($token)); - } - return true; - } - - /** - * A character entity. - * @param string $token Incoming characters. - * @param integer $event Lexer event type. - * @return boolean False if parse error. - * @access public - */ - function acceptEntityToken($token, $event) { - } - - /** - * Character data between tags regarded as - * important. - * @param string $token Incoming characters. - * @param integer $event Lexer event type. - * @return boolean False if parse error. - * @access public - */ - function acceptTextToken($token, $event) { - return $this->_listener->addContent($token); - } - - /** - * Incoming data to be ignored. - * @param string $token Incoming characters. - * @param integer $event Lexer event type. - * @return boolean False if parse error. - * @access public - */ - function ignore($token, $event) { - return true; - } - - /** - * Decodes any HTML entities. - * @param string $html Incoming HTML. - * @return string Outgoing plain text. - * @access public - * @static - */ - static function decodeHtml($html) { - static $translations; - if (! isset($translations)) { - $translations = array_flip(get_html_translation_table(HTML_ENTITIES)); - } - return strtr($html, $translations); - } - - /** - * Turns HTML into text browser visible text. Images - * are converted to their alt text and tags are supressed. - * Entities are converted to their visible representation. - * @param string $html HTML to convert. - * @return string Plain text. - * @access public - * @static - */ - static function normalise($html) { - $text = preg_replace('|<!--.*?-->|', '', $html); - $text = preg_replace('|<img.*?alt\s*=\s*"(.*?)".*?>|', ' \1 ', $text); - $text = preg_replace('|<img.*?alt\s*=\s*\'(.*?)\'.*?>|', ' \1 ', $text); - $text = preg_replace('|<img.*?alt\s*=\s*([a-zA-Z_]+).*?>|', ' \1 ', $text); - $text = preg_replace('|<.*?>|', '', $text); - $text = SimpleHtmlSaxParser::decodeHtml($text); - $text = preg_replace('|\s+|', ' ', $text); - return trim($text); - } - } - - /** - * SAX event handler. - * @package SimpleTest - * @subpackage WebTester - * @abstract - */ - class SimpleSaxListener { - - /** - * Sets the document to write to. - * @access public - */ - function SimpleSaxListener() { - } - - /** - * Start of element event. - * @param string $name Element name. - * @param hash $attributes Name value pairs. - * Attributes without content - * are marked as true. - * @return boolean False on parse error. - * @access public - */ - function startElement($name, $attributes) { - } - - /** - * End of element event. - * @param string $name Element name. - * @return boolean False on parse error. - * @access public - */ - function endElement($name) { - } - - /** - * Unparsed, but relevant data. - * @param string $text May include unparsed tags. - * @return boolean False on parse error. - * @access public - */ - function addContent($text) { - } - }
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