diff options
Diffstat (limited to 'vendor/simplepie/simplepie/src/XML/Declaration/Parser.php')
| -rw-r--r-- | vendor/simplepie/simplepie/src/XML/Declaration/Parser.php | 330 |
1 files changed, 321 insertions, 9 deletions
diff --git a/vendor/simplepie/simplepie/src/XML/Declaration/Parser.php b/vendor/simplepie/simplepie/src/XML/Declaration/Parser.php index 10e651d0c..44d9416d2 100644 --- a/vendor/simplepie/simplepie/src/XML/Declaration/Parser.php +++ b/vendor/simplepie/simplepie/src/XML/Declaration/Parser.php @@ -5,10 +5,7 @@ * A PHP-Based RSS and Atom Feed Framework. * Takes the hard work out of managing a complete RSS/Atom solution. * - * Please note: This file is automatically generated by a build script. The - * full original source is always available from http://simplepie.org/ - * - * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors + * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are @@ -46,10 +43,325 @@ namespace SimplePie\XML\Declaration; -class_exists('SimplePie_XML_Declaration_Parser'); +/** + * Parses the XML Declaration + * + * @package SimplePie + * @subpackage Parsing + */ +class Parser +{ + /** + * XML Version + * + * @access public + * @var string + */ + public $version = '1.0'; + + /** + * Encoding + * + * @access public + * @var string + */ + public $encoding = 'UTF-8'; + + /** + * Standalone + * + * @access public + * @var bool + */ + public $standalone = false; + + /** + * @access private + */ + const STATE_BEFORE_VERSION_NAME = 'before_version_name'; + /** + * @access private + */ + const STATE_VERSION_NAME = 'version_name'; + /** + * @access private + */ + const STATE_VERSION_EQUALS = 'version_equals'; + /** + * @access private + */ + const STATE_VERSION_VALUE = 'version_value'; + /** + * @access private + */ + const STATE_ENCODING_NAME = 'encoding_name'; + /** + * @access private + */ + const STATE_EMIT = 'emit'; + /** + * @access private + */ + const STATE_ENCODING_EQUALS = 'encoding_equals'; + /** + * @access private + */ + const STATE_STANDALONE_NAME = 'standalone_name'; + /** + * @access private + */ + const STATE_ENCODING_VALUE = 'encoding_value'; + /** + * @access private + */ + const STATE_STANDALONE_EQUALS = 'standalone_equals'; + /** + * @access private + */ + const STATE_STANDALONE_VALUE = 'standalone_value'; + /** + * @access private + */ + const STATE_ERROR = false; + + /** + * Current state of the state machine + * + * @access private + * @var self::STATE_* + */ + public $state = self::STATE_BEFORE_VERSION_NAME; + + /** + * Input data + * + * @access private + * @var string + */ + public $data = ''; + + /** + * Input data length (to avoid calling strlen() everytime this is needed) + * + * @access private + * @var int + */ + public $data_length = 0; + + /** + * Current position of the pointer + * + * @var int + * @access private + */ + public $position = 0; + + /** + * Create an instance of the class with the input data + * + * @access public + * @param string $data Input data + */ + public function __construct($data) + { + $this->data = $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); + } -if (\false) { - class Parser extends \SimplePie_XML_Declaration_Parser - { - } + /** + * 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'); |