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////// JSXML XML Tools - REXML ///////////// |
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////// Regular Expression-based XML parser ///////////// |
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////// Ver 1.2 Jun 18 2001 ///////////// |
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////// Copyright 2000 Peter Tracey ///////////// |
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////// http://jsxml.homestead.com/ ///////////// |
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|
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function REXML(XML) { |
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this.XML = XML; |
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|
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this.rootElement = null; |
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|
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this.parse = REXML_parse; |
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if (this.XML && this.XML != "") this.parse(); |
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} |
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|
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function REXML_parse() { |
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var reTag = new RegExp("<([^>/ ]*)([^>]*)>","g"); // matches that tag name $1 and attribute string $2 |
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var reTagText = new RegExp("<([^>/ ]*)([^>]*)>([^<]*)","g"); // matches tag name $1, attribute string $2, and text $3 |
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var strType = ""; |
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var strTag = ""; |
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var strText = ""; |
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var strAttributes = ""; |
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var strOpen = ""; |
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var strClose = ""; |
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var iElements = 0; |
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var xmleLastElement = null; |
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if (this.XML.length == 0) return; |
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var arrElementsUnparsed = this.XML.match(reTag); |
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var arrElementsUnparsedText = this.XML.match(reTagText); |
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var i=0; |
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if (arrElementsUnparsed[0].replace(reTag, "$1") == "?xml") i++; |
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|
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for (; i<arrElementsUnparsed.length; i++) { |
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strTag = arrElementsUnparsed[i].replace(reTag,"$1"); |
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strAttributes = arrElementsUnparsed[i].replace(reTag,"$2"); |
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strText = arrElementsUnparsedText[i].replace(reTagText,"$3").replace(/[\r\n\t ]+/g, " "); // remove white space |
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strClose = ""; |
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if (strTag.indexOf("![CDATA[") == 0) { |
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strOpen = "<![CDATA["; |
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strClose = "]]>"; |
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strType = "cdata"; |
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} else if (strTag.indexOf("!--") == 0) { |
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strOpen = "<!--"; |
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strClose = "-->"; |
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strType = "comment"; |
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} else if (strTag.indexOf("?") == 0) { |
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strOpen = "<?"; |
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strClose = "?>"; |
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strType = "pi"; |
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} else strType = "element"; |
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if (strClose != "") { |
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strText = ""; |
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if (arrElementsUnparsedText[i].indexOf(strClose) > -1) strText = arrElementsUnparsedText[i]; |
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else { |
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for (; i<arrElementsUnparsed.length && arrElementsUnparsedText[i].indexOf(strClose) == -1; i++) { |
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strText += arrElementsUnparsedText[i]; |
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} |
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strText += arrElementsUnparsedText[i]; |
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} |
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if (strText.substring(strOpen.length, strText.indexOf(strClose)) != "") { |
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xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement(strType, "","",xmleLastElement,strText.substring(strOpen.length, strText.indexOf(strClose))); |
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if (strType == "cdata") xmleLastElement.text += strText.substring(strOpen.length, strText.indexOf(strClose)); |
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} |
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if (strText.indexOf(strClose)+ strClose.length < strText.length) { |
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xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement("text", "","",xmleLastElement,strText.substring(strText.indexOf(strClose)+ strClose.length, strText.length)); |
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if (strType == "cdata") xmleLastElement.text += strText.substring(strText.indexOf(strClose)+ strClose.length, strText.length); |
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} |
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continue; |
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} |
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if (strText.replace(/ */, "") == "") strText = ""; |
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if (arrElementsUnparsed[i].substring(1,2) != "/") { |
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if (iElements == 0) { |
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xmleLastElement = this.rootElement = new REXML_XMLElement(strType, strTag,strAttributes,null,strText); |
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iElements++; |
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if (strText != "") xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement("text", "","",xmleLastElement,strText); |
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} else if (arrElementsUnparsed[i].substring(arrElementsUnparsed[i].length-2,arrElementsUnparsed[i].length-1) != "/") { |
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xmleLastElement = xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement(strType, strTag,strAttributes,xmleLastElement,strText); |
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iElements++; |
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if (strText != "") xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement("text", "","",xmleLastElement,strText); |
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} else { |
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xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement(strType, strTag,strAttributes,xmleLastElement,strText); |
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if (strText != "") xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement("text", "","",xmleLastElement,strText); |
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} |
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} else { |
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xmleLastElement = xmleLastElement.parentElement; |
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iElements--; |
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if (xmleLastElement && strText != "") { |
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xmleLastElement.text += strText; |
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xmleLastElement.childElements[xmleLastElement.childElements.length] = new REXML_XMLElement("text", "","",xmleLastElement,strText); |
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} |
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} |
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} |
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} |
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|
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function REXML_XMLElement(strType, strName, strAttributes, xmlParent, strText) { |
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this.type = strType; |
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this.name = strName; |
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this.attributeString = strAttributes; |
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this.attributes = null; |
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this.childElements = new Array(); |
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this.parentElement = xmlParent; |
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this.text = strText; // text of element |
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|
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this.getText = REXML_XMLElement_getText; // text of element and child elements |
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this.childElement = REXML_XMLElement_childElement; |
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this.attribute = REXML_XMLElement_attribute; |
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} |
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|
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function REXML_XMLElement_getText() { |
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if (this.type == "text" || this.type == "cdata") { |
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return this.text; |
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} else if (this.childElements.length) { |
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var L = ""; |
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for (var i=0; i<this.childElements.length; i++) { |
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L += this.childElements[i].getText(); |
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} |
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return L; |
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} else return ""; |
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} |
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|
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function REXML_XMLElement_childElement(strElementName) { |
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for (var i=0; i<this.childElements.length; i++) if (this.childElements[i].name == strElementName) return this.childElements[i]; |
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return null; |
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} |
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|
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function REXML_XMLElement_attribute(strAttributeName) { |
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if (!this.attributes) { |
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var reAttributes = new RegExp(" ([^= ]*)=","g"); // matches attributes |
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if (this.attributeString.match(reAttributes) && this.attributeString.match(reAttributes).length) { |
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var arrAttributes = this.attributeString.match(reAttributes); |
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if (!arrAttributes.length) arrAttributes = null; |
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else for (var j=0; j<arrAttributes.length; j++) { |
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arrAttributes[j] = new Array( |
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(arrAttributes[j]+"").replace(/[= ]/g,""), |
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ParseAttribute(this.attributeString, (arrAttributes[j]+"").replace(/[= ]/g,"")) |
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); |
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} |
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this.attributes = arrAttributes; |
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} |
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} |
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if (this.attributes) for (var i=0; i<this.attributes.length; i++) if (this.attributes[i][0] == strAttributeName) return this.attributes[i][1]; |
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return ""; |
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} |
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|
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function ParseAttribute(str,Attribute) { |
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var str = str + ">"; |
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if (str.indexOf(Attribute + "='")>-1) var Attr = new RegExp(".*" + Attribute + "='([^']*)'.*>"); |
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else if (str.indexOf(Attribute + '="')>-1) var Attr = new RegExp(".*" + Attribute + '="([^"]*)".*>'); |
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return str.replace(Attr, "$1"); |
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} |
