src/pyams_skin/resources/js/ext/tinymce/dev/classes/html/SaxParser.js
changeset 69 a361355b55c7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/tinymce/dev/classes/html/SaxParser.js	Wed Jun 17 10:00:10 2015 +0200
@@ -0,0 +1,474 @@
+/**
+ * SaxParser.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/*eslint max-depth:[2, 9] */
+
+/**
+ * This class parses HTML code using pure JavaScript and executes various events for each item it finds. It will
+ * always execute the events in the right order for tag soup code like <b><p></b></p>. It will also remove elements
+ * and attributes that doesn't fit the schema if the validate setting is enabled.
+ *
+ * @example
+ * var parser = new tinymce.html.SaxParser({
+ *     validate: true,
+ *
+ *     comment: function(text) {
+ *         console.log('Comment:', text);
+ *     },
+ *
+ *     cdata: function(text) {
+ *         console.log('CDATA:', text);
+ *     },
+ *
+ *     text: function(text, raw) {
+ *         console.log('Text:', text, 'Raw:', raw);
+ *     },
+ *
+ *     start: function(name, attrs, empty) {
+ *         console.log('Start:', name, attrs, empty);
+ *     },
+ *
+ *     end: function(name) {
+ *         console.log('End:', name);
+ *     },
+ *
+ *     pi: function(name, text) {
+ *         console.log('PI:', name, text);
+ *     },
+ *
+ *     doctype: function(text) {
+ *         console.log('DocType:', text);
+ *     }
+ * }, schema);
+ * @class tinymce.html.SaxParser
+ * @version 3.4
+ */
+define("tinymce/html/SaxParser", [
+	"tinymce/html/Schema",
+	"tinymce/html/Entities",
+	"tinymce/util/Tools"
+], function(Schema, Entities, Tools) {
+	var each = Tools.each;
+
+	/**
+	 * Returns the index of the end tag for a specific start tag. This can be
+	 * used to skip all children of a parent element from being processed.
+	 *
+	 * @private
+	 * @method findEndTag
+	 * @param {tinymce.html.Schema} schema Schema instance to use to match short ended elements.
+	 * @param {String} html HTML string to find the end tag in.
+	 * @param {Number} startIndex Indext to start searching at should be after the start tag.
+	 * @return {Number} Index of the end tag.
+	 */
+	function findEndTag(schema, html, startIndex) {
+		var count = 1, index, matches, tokenRegExp, shortEndedElements;
+
+		shortEndedElements = schema.getShortEndedElements();
+		tokenRegExp = /<([!?\/])?([A-Za-z0-9\-_\:\.]+)((?:\s+[^"\'>]+(?:(?:"[^"]*")|(?:\'[^\']*\')|[^>]*))*|\/|\s+)>/g;
+		tokenRegExp.lastIndex = index = startIndex;
+
+		while ((matches = tokenRegExp.exec(html))) {
+			index = tokenRegExp.lastIndex;
+
+			if (matches[1] === '/') { // End element
+				count--;
+			} else if (!matches[1]) { // Start element
+				if (matches[2] in shortEndedElements) {
+					continue;
+				}
+
+				count++;
+			}
+
+			if (count === 0) {
+				break;
+			}
+		}
+
+		return index;
+	}
+
+	/**
+	 * Constructs a new SaxParser instance.
+	 *
+	 * @constructor
+	 * @method SaxParser
+	 * @param {Object} settings Name/value collection of settings. comment, cdata, text, start and end are callbacks.
+	 * @param {tinymce.html.Schema} schema HTML Schema class to use when parsing.
+	 */
+	function SaxParser(settings, schema) {
+		var self = this;
+
+		function noop() {}
+
+		settings = settings || {};
+		self.schema = schema = schema || new Schema();
+
+		if (settings.fix_self_closing !== false) {
+			settings.fix_self_closing = true;
+		}
+
+		// Add handler functions from settings and setup default handlers
+		each('comment cdata text start end pi doctype'.split(' '), function(name) {
+			if (name) {
+				self[name] = settings[name] || noop;
+			}
+		});
+
+		/**
+		 * Parses the specified HTML string and executes the callbacks for each item it finds.
+		 *
+		 * @example
+		 * new SaxParser({...}).parse('<b>text</b>');
+		 * @method parse
+		 * @param {String} html Html string to sax parse.
+		 */
+		self.parse = function(html) {
+			var self = this, matches, index = 0, value, endRegExp, stack = [], attrList, i, text, name;
+			var isInternalElement, removeInternalElements, shortEndedElements, fillAttrsMap, isShortEnded;
+			var validate, elementRule, isValidElement, attr, attribsValue, validAttributesMap, validAttributePatterns;
+			var attributesRequired, attributesDefault, attributesForced;
+			var anyAttributesRequired, selfClosing, tokenRegExp, attrRegExp, specialElements, attrValue, idCount = 0;
+			var decode = Entities.decode, fixSelfClosing, filteredUrlAttrs = Tools.makeMap('src,href,data,background,formaction,poster');
+			var scriptUriRegExp = /((java|vb)script|mhtml):/i, dataUriRegExp = /^data:/i;
+
+			function processEndTag(name) {
+				var pos, i;
+
+				// Find position of parent of the same type
+				pos = stack.length;
+				while (pos--) {
+					if (stack[pos].name === name) {
+						break;
+					}
+				}
+
+				// Found parent
+				if (pos >= 0) {
+					// Close all the open elements
+					for (i = stack.length - 1; i >= pos; i--) {
+						name = stack[i];
+
+						if (name.valid) {
+							self.end(name.name);
+						}
+					}
+
+					// Remove the open elements from the stack
+					stack.length = pos;
+				}
+			}
+
+			function parseAttribute(match, name, value, val2, val3) {
+				var attrRule, i, trimRegExp = /[\s\u0000-\u001F]+/g;
+
+				name = name.toLowerCase();
+				value = name in fillAttrsMap ? name : decode(value || val2 || val3 || ''); // Handle boolean attribute than value attribute
+
+				// Validate name and value pass through all data- attributes
+				if (validate && !isInternalElement && name.indexOf('data-') !== 0) {
+					attrRule = validAttributesMap[name];
+
+					// Find rule by pattern matching
+					if (!attrRule && validAttributePatterns) {
+						i = validAttributePatterns.length;
+						while (i--) {
+							attrRule = validAttributePatterns[i];
+							if (attrRule.pattern.test(name)) {
+								break;
+							}
+						}
+
+						// No rule matched
+						if (i === -1) {
+							attrRule = null;
+						}
+					}
+
+					// No attribute rule found
+					if (!attrRule) {
+						return;
+					}
+
+					// Validate value
+					if (attrRule.validValues && !(value in attrRule.validValues)) {
+						return;
+					}
+				}
+
+				// Block any javascript: urls or non image data uris
+				if (filteredUrlAttrs[name] && !settings.allow_script_urls) {
+					var uri = value.replace(trimRegExp, '');
+
+					try {
+						// Might throw malformed URI sequence
+						uri = decodeURIComponent(uri);
+					} catch (ex) {
+						// Fallback to non UTF-8 decoder
+						uri = unescape(uri);
+					}
+
+					if (scriptUriRegExp.test(uri)) {
+						return;
+					}
+
+					if (!settings.allow_html_data_urls && dataUriRegExp.test(uri) && !/^data:image\//i.test(uri)) {
+						return;
+					}
+				}
+
+				// Add attribute to list and map
+				attrList.map[name] = value;
+				attrList.push({
+					name: name,
+					value: value
+				});
+			}
+
+			// Precompile RegExps and map objects
+			tokenRegExp = new RegExp('<(?:' +
+				'(?:!--([\\w\\W]*?)-->)|' + // Comment
+				'(?:!\\[CDATA\\[([\\w\\W]*?)\\]\\]>)|' + // CDATA
+				'(?:!DOCTYPE([\\w\\W]*?)>)|' + // DOCTYPE
+				'(?:\\?([^\\s\\/<>]+) ?([\\w\\W]*?)[?/]>)|' + // PI
+				'(?:\\/([^>]+)>)|' + // End element
+				'(?:([A-Za-z0-9\\-_\\:\\.]+)((?:\\s+[^"\'>]+(?:(?:"[^"]*")|(?:\'[^\']*\')|[^>]*))*|\\/|\\s+)>)' + // Start element
+			')', 'g');
+
+			attrRegExp = /([\w:\-]+)(?:\s*=\s*(?:(?:\"((?:[^\"])*)\")|(?:\'((?:[^\'])*)\')|([^>\s]+)))?/g;
+
+			// Setup lookup tables for empty elements and boolean attributes
+			shortEndedElements = schema.getShortEndedElements();
+			selfClosing = settings.self_closing_elements || schema.getSelfClosingElements();
+			fillAttrsMap = schema.getBoolAttrs();
+			validate = settings.validate;
+			removeInternalElements = settings.remove_internals;
+			fixSelfClosing = settings.fix_self_closing;
+			specialElements = schema.getSpecialElements();
+
+			while ((matches = tokenRegExp.exec(html))) {
+				// Text
+				if (index < matches.index) {
+					self.text(decode(html.substr(index, matches.index - index)));
+				}
+
+				if ((value = matches[6])) { // End element
+					value = value.toLowerCase();
+
+					// IE will add a ":" in front of elements it doesn't understand like custom elements or HTML5 elements
+					if (value.charAt(0) === ':') {
+						value = value.substr(1);
+					}
+
+					processEndTag(value);
+				} else if ((value = matches[7])) { // Start element
+					value = value.toLowerCase();
+
+					// IE will add a ":" in front of elements it doesn't understand like custom elements or HTML5 elements
+					if (value.charAt(0) === ':') {
+						value = value.substr(1);
+					}
+
+					isShortEnded = value in shortEndedElements;
+
+					// Is self closing tag for example an <li> after an open <li>
+					if (fixSelfClosing && selfClosing[value] && stack.length > 0 && stack[stack.length - 1].name === value) {
+						processEndTag(value);
+					}
+
+					// Validate element
+					if (!validate || (elementRule = schema.getElementRule(value))) {
+						isValidElement = true;
+
+						// Grab attributes map and patters when validation is enabled
+						if (validate) {
+							validAttributesMap = elementRule.attributes;
+							validAttributePatterns = elementRule.attributePatterns;
+						}
+
+						// Parse attributes
+						if ((attribsValue = matches[8])) {
+							isInternalElement = attribsValue.indexOf('data-mce-type') !== -1; // Check if the element is an internal element
+
+							// If the element has internal attributes then remove it if we are told to do so
+							if (isInternalElement && removeInternalElements) {
+								isValidElement = false;
+							}
+
+							attrList = [];
+							attrList.map = {};
+
+							attribsValue.replace(attrRegExp, parseAttribute);
+						} else {
+							attrList = [];
+							attrList.map = {};
+						}
+
+						// Process attributes if validation is enabled
+						if (validate && !isInternalElement) {
+							attributesRequired = elementRule.attributesRequired;
+							attributesDefault = elementRule.attributesDefault;
+							attributesForced = elementRule.attributesForced;
+							anyAttributesRequired = elementRule.removeEmptyAttrs;
+
+							// Check if any attribute exists
+							if (anyAttributesRequired && !attrList.length) {
+								isValidElement = false;
+							}
+
+							// Handle forced attributes
+							if (attributesForced) {
+								i = attributesForced.length;
+								while (i--) {
+									attr = attributesForced[i];
+									name = attr.name;
+									attrValue = attr.value;
+
+									if (attrValue === '{$uid}') {
+										attrValue = 'mce_' + idCount++;
+									}
+
+									attrList.map[name] = attrValue;
+									attrList.push({name: name, value: attrValue});
+								}
+							}
+
+							// Handle default attributes
+							if (attributesDefault) {
+								i = attributesDefault.length;
+								while (i--) {
+									attr = attributesDefault[i];
+									name = attr.name;
+
+									if (!(name in attrList.map)) {
+										attrValue = attr.value;
+
+										if (attrValue === '{$uid}') {
+											attrValue = 'mce_' + idCount++;
+										}
+
+										attrList.map[name] = attrValue;
+										attrList.push({name: name, value: attrValue});
+									}
+								}
+							}
+
+							// Handle required attributes
+							if (attributesRequired) {
+								i = attributesRequired.length;
+								while (i--) {
+									if (attributesRequired[i] in attrList.map) {
+										break;
+									}
+								}
+
+								// None of the required attributes where found
+								if (i === -1) {
+									isValidElement = false;
+								}
+							}
+
+							// Invalidate element if it's marked as bogus
+							if ((attr = attrList.map['data-mce-bogus'])) {
+								if (attr === 'all') {
+									index = findEndTag(schema, html, tokenRegExp.lastIndex);
+									tokenRegExp.lastIndex = index;
+									continue;
+								}
+
+								isValidElement = false;
+							}
+						}
+
+						if (isValidElement) {
+							self.start(value, attrList, isShortEnded);
+						}
+					} else {
+						isValidElement = false;
+					}
+
+					// Treat script, noscript and style a bit different since they may include code that looks like elements
+					if ((endRegExp = specialElements[value])) {
+						endRegExp.lastIndex = index = matches.index + matches[0].length;
+
+						if ((matches = endRegExp.exec(html))) {
+							if (isValidElement) {
+								text = html.substr(index, matches.index - index);
+							}
+
+							index = matches.index + matches[0].length;
+						} else {
+							text = html.substr(index);
+							index = html.length;
+						}
+
+						if (isValidElement) {
+							if (text.length > 0) {
+								self.text(text, true);
+							}
+
+							self.end(value);
+						}
+
+						tokenRegExp.lastIndex = index;
+						continue;
+					}
+
+					// Push value on to stack
+					if (!isShortEnded) {
+						if (!attribsValue || attribsValue.indexOf('/') != attribsValue.length - 1) {
+							stack.push({name: value, valid: isValidElement});
+						} else if (isValidElement) {
+							self.end(value);
+						}
+					}
+				} else if ((value = matches[1])) { // Comment
+					// Padd comment value to avoid browsers from parsing invalid comments as HTML
+					if (value.charAt(0) === '>') {
+						value = ' ' + value;
+					}
+
+					if (!settings.allow_conditional_comments && value.substr(0, 3) === '[if') {
+						value = ' ' + value;
+					}
+
+					self.comment(value);
+				} else if ((value = matches[2])) { // CDATA
+					self.cdata(value);
+				} else if ((value = matches[3])) { // DOCTYPE
+					self.doctype(value);
+				} else if ((value = matches[4])) { // PI
+					self.pi(value, matches[5]);
+				}
+
+				index = matches.index + matches[0].length;
+			}
+
+			// Text
+			if (index < html.length) {
+				self.text(decode(html.substr(index)));
+			}
+
+			// Close any open elements
+			for (i = stack.length - 1; i >= 0; i--) {
+				value = stack[i];
+
+				if (value.valid) {
+					self.end(value.name);
+				}
+			}
+		};
+	}
+
+	SaxParser.findEndTag = findEndTag;
+
+	return SaxParser;
+});
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