Declaration/Parser.php000064400000022353147206763010010751 0ustar00data = $data; $this->data_length = strlen($this->data); } /** * Parse the input data * * @access public * @return bool true on success, false on failure */ public function parse() { while ($this->state && $this->state !== self::STATE_EMIT && $this->has_data()) { $state = $this->state; $this->$state(); } $this->data = ''; if ($this->state === self::STATE_EMIT) { return true; } $this->version = ''; $this->encoding = ''; $this->standalone = ''; return false; } /** * Check whether there is data beyond the pointer * * @access private * @return bool true if there is further data, false if not */ public function has_data() { return (bool) ($this->position < $this->data_length); } /** * Advance past any whitespace * * @return int Number of whitespace characters passed */ public function skip_whitespace() { $whitespace = strspn($this->data, "\x09\x0A\x0D\x20", $this->position); $this->position += $whitespace; return $whitespace; } /** * Read value */ public function get_value() { $quote = substr($this->data, $this->position, 1); if ($quote === '"' || $quote === "'") { $this->position++; $len = strcspn($this->data, $quote, $this->position); if ($this->has_data()) { $value = substr($this->data, $this->position, $len); $this->position += $len + 1; return $value; } } return false; } public function before_version_name() { if ($this->skip_whitespace()) { $this->state = self::STATE_VERSION_NAME; } else { $this->state = self::STATE_ERROR; } } public function version_name() { if (substr($this->data, $this->position, 7) === 'version') { $this->position += 7; $this->skip_whitespace(); $this->state = self::STATE_VERSION_EQUALS; } else { $this->state = self::STATE_ERROR; } } public function version_equals() { if (substr($this->data, $this->position, 1) === '=') { $this->position++; $this->skip_whitespace(); $this->state = self::STATE_VERSION_VALUE; } else { $this->state = self::STATE_ERROR; } } public function version_value() { if ($this->version = $this->get_value()) { $this->skip_whitespace(); if ($this->has_data()) { $this->state = self::STATE_ENCODING_NAME; } else { $this->state = self::STATE_EMIT; } } else { $this->state = self::STATE_ERROR; } } public function encoding_name() { if (substr($this->data, $this->position, 8) === 'encoding') { $this->position += 8; $this->skip_whitespace(); $this->state = self::STATE_ENCODING_EQUALS; } else { $this->state = self::STATE_STANDALONE_NAME; } } public function encoding_equals() { if (substr($this->data, $this->position, 1) === '=') { $this->position++; $this->skip_whitespace(); $this->state = self::STATE_ENCODING_VALUE; } else { $this->state = self::STATE_ERROR; } } public function encoding_value() { if ($this->encoding = $this->get_value()) { $this->skip_whitespace(); if ($this->has_data()) { $this->state = self::STATE_STANDALONE_NAME; } else { $this->state = self::STATE_EMIT; } } else { $this->state = self::STATE_ERROR; } } public function standalone_name() { if (substr($this->data, $this->position, 10) === 'standalone') { $this->position += 10; $this->skip_whitespace(); $this->state = self::STATE_STANDALONE_EQUALS; } else { $this->state = self::STATE_ERROR; } } public function standalone_equals() { if (substr($this->data, $this->position, 1) === '=') { $this->position++; $this->skip_whitespace(); $this->state = self::STATE_STANDALONE_VALUE; } else { $this->state = self::STATE_ERROR; } } public function standalone_value() { if ($standalone = $this->get_value()) { switch ($standalone) { case 'yes': $this->standalone = true; break; case 'no': $this->standalone = false; break; default: $this->state = self::STATE_ERROR; return; } $this->skip_whitespace(); if ($this->has_data()) { $this->state = self::STATE_ERROR; } else { $this->state = self::STATE_EMIT; } } else { $this->state = self::STATE_ERROR; } } } class_alias('SimplePie\XML\Declaration\Parser', 'SimplePie_XML_Declaration_Parser');