188 lines
6 KiB
JavaScript
188 lines
6 KiB
JavaScript
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dojo.provide("dojox.xml.parser");
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//DOM type to int value for reference.
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//Ints make for more compact code than full constant names.
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//ELEMENT_NODE = 1;
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//ATTRIBUTE_NODE = 2;
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//TEXT_NODE = 3;
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//CDATA_SECTION_NODE = 4;
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//ENTITY_REFERENCE_NODE = 5;
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//ENTITY_NODE = 6;
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//PROCESSING_INSTRUCTION_NODE = 7;
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//COMMENT_NODE = 8;
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//DOCUMENT_NODE = 9;
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//DOCUMENT_TYPE_NODE = 10;
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//DOCUMENT_FRAGMENT_NODE = 11;
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//NOTATION_NODE = 12;
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dojox.xml.parser.parse = function(/*String?*/ str, /*String?*/ mimetype){
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// summary:
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// cross-browser implementation of creating an XML document object from null, empty string, and XML text..
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//
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// str:
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// Optional text to create the document from. If not provided, an empty XML document will be created.
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// If str is empty string "", then a new empty document will be created.
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// mimetype:
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// Optional mimetype of the text. Typically, this is text/xml. Will be defaulted to text/xml if not provided.
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var _document = dojo.doc;
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var doc;
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mimetype = mimetype || "text/xml";
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if(str && dojo.trim(str) && "DOMParser" in dojo.global){
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//Handle parsing the text on Mozilla based browsers etc..
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var parser = new DOMParser();
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doc = parser.parseFromString(str, mimetype);
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var de = doc.documentElement;
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var errorNS = "http://www.mozilla.org/newlayout/xml/parsererror.xml";
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if(de.nodeName == "parsererror" && de.namespaceURI == errorNS){
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var sourceText = de.getElementsByTagNameNS(errorNS, 'sourcetext')[0];
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if(!sourceText){
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sourceText = sourceText.firstChild.data;
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}
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throw new Error("Error parsing text " + nativeDoc.documentElement.firstChild.data + " \n" + sourceText);
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}
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return doc;
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}else if("ActiveXObject" in dojo.global){
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//Handle IE.
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var ms = function(n){ return "MSXML" + n + ".DOMDocument"; };
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var dp = ["Microsoft.XMLDOM", ms(6), ms(4), ms(3), ms(2)];
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dojo.some(dp, function(p){
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try{
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doc = new ActiveXObject(p);
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}catch(e){ return false; }
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return true;
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});
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if(str && doc){
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doc.async = false;
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doc.loadXML(str);
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var pe = doc.parseError;
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if(pe.errorCode !== 0){
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throw new Error("Line: " + pe.line + "\n" +
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"Col: " + pe.linepos + "\n" +
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"Reason: " + pe.reason + "\n" +
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"Error Code: " + pe.errorCode + "\n" +
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"Source: " + pe.srcText);
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}
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}
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if(doc){
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return doc; //DOMDocument
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}
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}else if(_document.implementation && _document.implementation.createDocument){
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if(str && dojo.trim(str) && _document.createElement){
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//Everyone else that we couldn't get to work. Fallback case.
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// FIXME: this may change all tags to uppercase!
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var tmp = _document.createElement("xml");
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tmp.innerHTML = str;
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var xmlDoc = _document.implementation.createDocument("foo", "", null);
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dojo.forEach(tmp.childNodes, function(child){
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xmlDoc.importNode(child, true);
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});
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return xmlDoc; // DOMDocument
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}else{
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return _document.implementation.createDocument("", "", null); // DOMDocument
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}
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}
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return null; // null
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}
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dojox.xml.parser.textContent = function(/*Node*/node, /*String?*/text){
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// summary:
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// Implementation of the DOM Level 3 attribute; scan node for text
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// description:
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// Implementation of the DOM Level 3 attribute; scan node for text
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// This function can also update the text of a node by replacing all child
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// content of the node.
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// node:
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// The node to get the text off of or set the text on.
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// text:
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// Optional argument of the text to apply to the node.
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if(arguments.length>1){
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var _document = node.ownerDocument || dojo.doc; //Preference is to get the node owning doc first or it may fail
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dojox.xml.parser.replaceChildren(node, _document.createTextNode(text));
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return text; // String
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}else{
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if(node.textContent !== undefined){ //FF 1.5 -- remove?
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return node.textContent; // String
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}
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var _result = "";
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if(node){
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dojo.forEach(node.childNodes, function(child){
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switch(child.nodeType){
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case 1: // ELEMENT_NODE
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case 5: // ENTITY_REFERENCE_NODE
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_result += dojox.xml.parser.textContent(child);
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break;
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case 3: // TEXT_NODE
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case 2: // ATTRIBUTE_NODE
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case 4: // CDATA_SECTION_NODE
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_result += child.nodeValue;
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}
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});
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}
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return _result; // String
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}
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}
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dojox.xml.parser.replaceChildren = function(/*Element*/node, /*Node || Array*/ newChildren){
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// summary:
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// Removes all children of node and appends newChild. All the existing
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// children will be destroyed.
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// description:
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// Removes all children of node and appends newChild. All the existing
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// children will be destroyed.
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// node:
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// The node to modify the children on
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// newChildren:
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// The children to add to the node. It can either be a single Node or an
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// array of Nodes.
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var nodes = [];
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if(dojo.isIE){
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dojo.forEach(node.childNodes, function(child){
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nodes.push(child);
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});
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}
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dojox.xml.parser.removeChildren(node);
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dojo.forEach(nodes, dojo.destroy);
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if(!dojo.isArray(newChildren)){
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node.appendChild(newChildren);
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}else{
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dojo.forEach(newChildren, function(child){
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node.appendChild(child);
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});
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}
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}
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dojox.xml.parser.removeChildren = function(/*Element*/node){
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// summary:
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// removes all children from node and returns the count of children removed.
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// The children nodes are not destroyed. Be sure to call dojo.destroy on them
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// after they are not used anymore.
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// node:
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// The node to remove all the children from.
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var count = node.childNodes.length;
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while(node.hasChildNodes()){
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node.removeChild(node.firstChild);
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}
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return count; // int
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}
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dojox.xml.parser.innerXML = function(/*Node*/node){
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// summary:
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// Implementation of MS's innerXML function.
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// node:
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// The node from which to generate the XML text representation.
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if(node.innerXML){
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return node.innerXML; // String
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}else if(node.xml){
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return node.xml; // String
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}else if(typeof XMLSerializer != "undefined"){
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return (new XMLSerializer()).serializeToString(node); // String
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}
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return null;
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}
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