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Diffstat (limited to 'node.d/node_modules/pixl-xml.js')
| -rw-r--r-- | node.d/node_modules/pixl-xml.js | 606 |
1 files changed, 606 insertions, 0 deletions
diff --git a/node.d/node_modules/pixl-xml.js b/node.d/node_modules/pixl-xml.js new file mode 100644 index 000000000..481acbaeb --- /dev/null +++ b/node.d/node_modules/pixl-xml.js @@ -0,0 +1,606 @@ +/* + JavaScript XML Library + Plus a bunch of object utility functions + + Usage: + var XML = require('pixl-xml'); + var myxmlstring = '<?xml version="1.0"?><Document>' + + '<Simple>Hello</Simple>' + + '<Node Key="Value">Content</Node>' + + '</Document>'; + + var tree = XML.parse( myxmlstring, { preserveAttributes: true }); + console.log( tree ); + + tree.Simple = "Hello2"; + tree.Node._Attribs.Key = "Value2"; + tree.Node._Data = "Content2"; + tree.New = "I added this"; + + console.log( XML.stringify( tree, 'Document' ) ); + + Copyright (c) 2004 - 2015 Joseph Huckaby + Released under the MIT License + This version is for Node.JS, converted in 2012. +*/ + +var fs = require('fs'); + +var indent_string = "\t"; +var xml_header = '<?xml version="1.0"?>'; +var sort_args = null; +var re_valid_tag_name = /^\w[\w\-\:]*$/; + +var XML = exports.XML = function XML(args) { + // class constructor for XML parser class + // pass in args hash or text to parse + if (!args) args = ''; + if (isa_hash(args)) { + for (var key in args) this[key] = args[key]; + } + else this.text = args || ''; + + // stringify buffers + if (this.text instanceof Buffer) { + this.text = this.text.toString(); + } + + if (!this.text.match(/^\s*</)) { + // try as file path + var file = this.text; + this.text = fs.readFileSync(file, { encoding: 'utf8' }); + if (!this.text) throw new Error("File not found: " + file); + } + + this.tree = {}; + this.errors = []; + this.piNodeList = []; + this.dtdNodeList = []; + this.documentNodeName = ''; + + if (this.lowerCase) { + this.attribsKey = this.attribsKey.toLowerCase(); + this.dataKey = this.dataKey.toLowerCase(); + } + + this.patTag.lastIndex = 0; + if (this.text) this.parse(); +} + +XML.prototype.preserveAttributes = false; +XML.prototype.lowerCase = false; + +XML.prototype.patTag = /([^<]*?)<([^>]+)>/g; +XML.prototype.patSpecialTag = /^\s*([\!\?])/; +XML.prototype.patPITag = /^\s*\?/; +XML.prototype.patCommentTag = /^\s*\!--/; +XML.prototype.patDTDTag = /^\s*\!DOCTYPE/; +XML.prototype.patCDATATag = /^\s*\!\s*\[\s*CDATA/; +XML.prototype.patStandardTag = /^\s*(\/?)([\w\-\:\.]+)\s*(.*)$/; +XML.prototype.patSelfClosing = /\/\s*$/; +XML.prototype.patAttrib = new RegExp("([\\w\\-\\:\\.]+)\\s*=\\s*([\\\"\\'])([^\\2]*?)\\2", "g"); +XML.prototype.patPINode = /^\s*\?\s*([\w\-\:]+)\s*(.*)$/; +XML.prototype.patEndComment = /--$/; +XML.prototype.patNextClose = /([^>]*?)>/g; +XML.prototype.patExternalDTDNode = new RegExp("^\\s*\\!DOCTYPE\\s+([\\w\\-\\:]+)\\s+(SYSTEM|PUBLIC)\\s+\\\"([^\\\"]+)\\\""); +XML.prototype.patInlineDTDNode = /^\s*\!DOCTYPE\s+([\w\-\:]+)\s+\[/; +XML.prototype.patEndDTD = /\]$/; +XML.prototype.patDTDNode = /^\s*\!DOCTYPE\s+([\w\-\:]+)\s+\[(.*)\]/; +XML.prototype.patEndCDATA = /\]\]$/; +XML.prototype.patCDATANode = /^\s*\!\s*\[\s*CDATA\s*\[([^]*)\]\]/; + +XML.prototype.attribsKey = '_Attribs'; +XML.prototype.dataKey = '_Data'; + +XML.prototype.parse = function(branch, name) { + // parse text into XML tree, recurse for nested nodes + if (!branch) branch = this.tree; + if (!name) name = null; + var foundClosing = false; + var matches = null; + + // match each tag, plus preceding text + while ( matches = this.patTag.exec(this.text) ) { + var before = matches[1]; + var tag = matches[2]; + + // text leading up to tag = content of parent node + if (before.match(/\S/)) { + if (typeof(branch[this.dataKey]) != 'undefined') branch[this.dataKey] += ' '; else branch[this.dataKey] = ''; + branch[this.dataKey] += trim(decode_entities(before)); + } + + // parse based on tag type + if (tag.match(this.patSpecialTag)) { + // special tag + if (tag.match(this.patPITag)) tag = this.parsePINode(tag); + else if (tag.match(this.patCommentTag)) tag = this.parseCommentNode(tag); + else if (tag.match(this.patDTDTag)) tag = this.parseDTDNode(tag); + else if (tag.match(this.patCDATATag)) { + tag = this.parseCDATANode(tag); + if (typeof(branch[this.dataKey]) != 'undefined') branch[this.dataKey] += ' '; else branch[this.dataKey] = ''; + branch[this.dataKey] += trim(decode_entities(tag)); + } // cdata + else { + this.throwParseError( "Malformed special tag", tag ); + break; + } // error + + if (tag == null) break; + continue; + } // special tag + else { + // Tag is standard, so parse name and attributes (if any) + var matches = tag.match(this.patStandardTag); + if (!matches) { + this.throwParseError( "Malformed tag", tag ); + break; + } + + var closing = matches[1]; + var nodeName = this.lowerCase ? matches[2].toLowerCase() : matches[2]; + var attribsRaw = matches[3]; + + // If this is a closing tag, make sure it matches its opening tag + if (closing) { + if (nodeName == (name || '')) { + foundClosing = 1; + break; + } + else { + this.throwParseError( "Mismatched closing tag (expected </" + name + ">)", tag ); + break; + } + } // closing tag + else { + // Not a closing tag, so parse attributes into hash. If tag + // is self-closing, no recursive parsing is needed. + var selfClosing = !!attribsRaw.match(this.patSelfClosing); + var leaf = {}; + var attribs = leaf; + + // preserve attributes means they go into a sub-hash named "_Attribs" + // the XML composer honors this for restoring the tree back into XML + if (this.preserveAttributes) { + leaf[this.attribsKey] = {}; + attribs = leaf[this.attribsKey]; + } + + // parse attributes + this.patAttrib.lastIndex = 0; + while ( matches = this.patAttrib.exec(attribsRaw) ) { + var key = this.lowerCase ? matches[1].toLowerCase() : matches[1]; + attribs[ key ] = decode_entities( matches[3] ); + } // foreach attrib + + // if no attribs found, but we created the _Attribs subhash, clean it up now + if (this.preserveAttributes && !num_keys(attribs)) { + delete leaf[this.attribsKey]; + } + + // Recurse for nested nodes + if (!selfClosing) { + this.parse( leaf, nodeName ); + if (this.error()) break; + } + + // Compress into simple node if text only + var num_leaf_keys = num_keys(leaf); + if ((typeof(leaf[this.dataKey]) != 'undefined') && (num_leaf_keys == 1)) { + leaf = leaf[this.dataKey]; + } + else if (!num_leaf_keys) { + leaf = ''; + } + + // Add leaf to parent branch + if (typeof(branch[nodeName]) != 'undefined') { + if (isa_array(branch[nodeName])) { + branch[nodeName].push( leaf ); + } + else { + var temp = branch[nodeName]; + branch[nodeName] = [ temp, leaf ]; + } + } + else { + branch[nodeName] = leaf; + } + + if (this.error() || (branch == this.tree)) break; + } // not closing + } // standard tag + } // main reg exp + + // Make sure we found the closing tag + if (name && !foundClosing) { + this.throwParseError( "Missing closing tag (expected </" + name + ">)", name ); + } + + // If we are the master node, finish parsing and setup our doc node + if (branch == this.tree) { + if (typeof(this.tree[this.dataKey]) != 'undefined') delete this.tree[this.dataKey]; + + if (num_keys(this.tree) > 1) { + this.throwParseError( 'Only one top-level node is allowed in document', first_key(this.tree) ); + return; + } + + this.documentNodeName = first_key(this.tree); + if (this.documentNodeName) { + this.tree = this.tree[this.documentNodeName]; + } + } +}; + +XML.prototype.throwParseError = function(key, tag) { + // log error and locate current line number in source XML document + var parsedSource = this.text.substring(0, this.patTag.lastIndex); + var eolMatch = parsedSource.match(/\n/g); + var lineNum = (eolMatch ? eolMatch.length : 0) + 1; + lineNum -= tag.match(/\n/) ? tag.match(/\n/g).length : 0; + + this.errors.push({ + type: 'Parse', + key: key, + text: '<' + tag + '>', + line: lineNum + }); + + // Throw actual error (must wrap parse in try/catch) + throw new Error( this.getLastError() ); +}; + +XML.prototype.error = function() { + // return number of errors + return this.errors.length; +}; + +XML.prototype.getError = function(error) { + // get formatted error + var text = ''; + if (!error) return ''; + + text = (error.type || 'General') + ' Error'; + if (error.code) text += ' ' + error.code; + text += ': ' + error.key; + + if (error.line) text += ' on line ' + error.line; + if (error.text) text += ': ' + error.text; + + return text; +}; + +XML.prototype.getLastError = function() { + // Get most recently thrown error in plain text format + if (!this.error()) return ''; + return this.getError( this.errors[this.errors.length - 1] ); +}; + +XML.prototype.parsePINode = function(tag) { + // Parse Processor Instruction Node, e.g. <?xml version="1.0"?> + if (!tag.match(this.patPINode)) { + this.throwParseError( "Malformed processor instruction", tag ); + return null; + } + + this.piNodeList.push( tag ); + return tag; +}; + +XML.prototype.parseCommentNode = function(tag) { + // Parse Comment Node, e.g. <!-- hello --> + var matches = null; + this.patNextClose.lastIndex = this.patTag.lastIndex; + + while (!tag.match(this.patEndComment)) { + if (matches = this.patNextClose.exec(this.text)) { + tag += '>' + matches[1]; + } + else { + this.throwParseError( "Unclosed comment tag", tag ); + return null; + } + } + + this.patTag.lastIndex = this.patNextClose.lastIndex; + return tag; +}; + +XML.prototype.parseDTDNode = function(tag) { + // Parse Document Type Descriptor Node, e.g. <!DOCTYPE ... > + var matches = null; + + if (tag.match(this.patExternalDTDNode)) { + // tag is external, and thus self-closing + this.dtdNodeList.push( tag ); + } + else if (tag.match(this.patInlineDTDNode)) { + // Tag is inline, so check for nested nodes. + this.patNextClose.lastIndex = this.patTag.lastIndex; + + while (!tag.match(this.patEndDTD)) { + if (matches = this.patNextClose.exec(this.text)) { + tag += '>' + matches[1]; + } + else { + this.throwParseError( "Unclosed DTD tag", tag ); + return null; + } + } + + this.patTag.lastIndex = this.patNextClose.lastIndex; + + // Make sure complete tag is well-formed, and push onto DTD stack. + if (tag.match(this.patDTDNode)) { + this.dtdNodeList.push( tag ); + } + else { + this.throwParseError( "Malformed DTD tag", tag ); + return null; + } + } + else { + this.throwParseError( "Malformed DTD tag", tag ); + return null; + } + + return tag; +}; + +XML.prototype.parseCDATANode = function(tag) { + // Parse CDATA Node, e.g. <![CDATA[Brooks & Shields]]> + var matches = null; + this.patNextClose.lastIndex = this.patTag.lastIndex; + + while (!tag.match(this.patEndCDATA)) { + if (matches = this.patNextClose.exec(this.text)) { + tag += '>' + matches[1]; + } + else { + this.throwParseError( "Unclosed CDATA tag", tag ); + return null; + } + } + + this.patTag.lastIndex = this.patNextClose.lastIndex; + + if (matches = tag.match(this.patCDATANode)) { + return matches[1]; + } + else { + this.throwParseError( "Malformed CDATA tag", tag ); + return null; + } +}; + +XML.prototype.getTree = function() { + // get reference to parsed XML tree + return this.tree; +}; + +XML.prototype.compose = function() { + // compose tree back into XML + var raw = compose_xml( this.tree, this.documentNodeName ); + var body = raw.substring( raw.indexOf("\n") + 1, raw.length ); + var xml = ''; + + if (this.piNodeList.length) { + for (var idx = 0, len = this.piNodeList.length; idx < len; idx++) { + xml += '<' + this.piNodeList[idx] + '>' + "\n"; + } + } + else { + xml += xml_header + "\n"; + } + + if (this.dtdNodeList.length) { + for (var idx = 0, len = this.dtdNodeList.length; idx < len; idx++) { + xml += '<' + this.dtdNodeList[idx] + '>' + "\n"; + } + } + + xml += body; + return xml; +}; + +// +// Static Utility Functions: +// + +var parse_xml = exports.parse = function parse_xml(text, opts) { + // turn text into XML tree quickly + if (!opts) opts = {}; + opts.text = text; + var parser = new XML(opts); + return parser.error() ? parser.getLastError() : parser.getTree(); +}; + +var trim = exports.trim = function trim(text) { + // strip whitespace from beginning and end of string + if (text == null) return ''; + + if (text && text.replace) { + text = text.replace(/^\s+/, ""); + text = text.replace(/\s+$/, ""); + } + + return text; +}; + +var encode_entities = exports.encodeEntities = function encode_entities(text) { + // Simple entitize exports.for = function for composing XML + if (text == null) return ''; + + if (text && text.replace) { + text = text.replace(/\&/g, "&"); // MUST BE FIRST + text = text.replace(/</g, "<"); + text = text.replace(/>/g, ">"); + } + + return text; +}; + +var encode_attrib_entities = exports.encodeAttribEntities = function encode_attrib_entities(text) { + // Simple entitize exports.for = function for composing XML attributes + if (text == null) return ''; + + if (text && text.replace) { + text = text.replace(/\&/g, "&"); // MUST BE FIRST + text = text.replace(/</g, "<"); + text = text.replace(/>/g, ">"); + text = text.replace(/\"/g, """); + text = text.replace(/\'/g, "'"); + } + + return text; +}; + +var decode_entities = exports.decodeEntities = function decode_entities(text) { + // Decode XML entities into raw ASCII + if (text == null) return ''; + + if (text && text.replace && text.match(/\&/)) { + text = text.replace(/\<\;/g, "<"); + text = text.replace(/\>\;/g, ">"); + text = text.replace(/\"\;/g, '"'); + text = text.replace(/\&apos\;/g, "'"); + text = text.replace(/\&\;/g, "&"); // MUST BE LAST + } + + return text; +}; + +var compose_xml = exports.stringify = function compose_xml(node, name, indent) { + // Compose node into XML including attributes + // Recurse for child nodes + var xml = ""; + + // If this is the root node, set the indent to 0 + // and setup the XML header (PI node) + if (!indent) { + indent = 0; + xml = xml_header + "\n"; + + if (!name) { + // no name provided, assume content is wrapped in it + name = first_key(node); + node = node[name]; + } + } + + // Setup the indent text + var indent_text = ""; + for (var k = 0; k < indent; k++) indent_text += indent_string; + + if ((typeof(node) == 'object') && (node != null)) { + // node is object -- now see if it is an array or hash + if (!node.length) { // what about zero-length array? + // node is hash + xml += indent_text + "<" + name; + + var num_keys = 0; + var has_attribs = 0; + for (var key in node) num_keys++; // there must be a better way... + + if (node["_Attribs"]) { + has_attribs = 1; + var sorted_keys = hash_keys_to_array(node["_Attribs"]).sort(); + for (var idx = 0, len = sorted_keys.length; idx < len; idx++) { + var key = sorted_keys[idx]; + xml += " " + key + "=\"" + encode_attrib_entities(node["_Attribs"][key]) + "\""; + } + } // has attribs + + if (num_keys > has_attribs) { + // has child elements + xml += ">"; + + if (node["_Data"]) { + // simple text child node + xml += encode_entities(node["_Data"]) + "</" + name + ">\n"; + } // just text + else { + xml += "\n"; + + var sorted_keys = hash_keys_to_array(node).sort(); + for (var idx = 0, len = sorted_keys.length; idx < len; idx++) { + var key = sorted_keys[idx]; + if ((key != "_Attribs") && key.match(re_valid_tag_name)) { + // recurse for node, with incremented indent value + xml += compose_xml( node[key], key, indent + 1 ); + } // not _Attribs key + } // foreach key + + xml += indent_text + "</" + name + ">\n"; + } // real children + } + else { + // no child elements, so self-close + xml += "/>\n"; + } + } // standard node + else { + // node is array + for (var idx = 0; idx < node.length; idx++) { + // recurse for node in array with same indent + xml += compose_xml( node[idx], name, indent ); + } + } // array of nodes + } // complex node + else { + // node is simple string + xml += indent_text + "<" + name + ">" + encode_entities(node) + "</" + name + ">\n"; + } // simple text node + + return xml; +}; + +var always_array = exports.alwaysArray = function always_array(obj, key) { + // if object is not array, return array containing object + // if key is passed, work like XMLalwaysarray() instead + if (key) { + if ((typeof(obj[key]) != 'object') || (typeof(obj[key].length) == 'undefined')) { + var temp = obj[key]; + delete obj[key]; + obj[key] = new Array(); + obj[key][0] = temp; + } + return null; + } + else { + if ((typeof(obj) != 'object') || (typeof(obj.length) == 'undefined')) { return [ obj ]; } + else return obj; + } +}; + +var hash_keys_to_array = exports.hashKeysToArray = function hash_keys_to_array(hash) { + // convert hash keys to array (discard values) + var array = []; + for (var key in hash) array.push(key); + return array; +}; + +var isa_hash = exports.isaHash = function isa_hash(arg) { + // determine if arg is a hash + return( !!arg && (typeof(arg) == 'object') && (typeof(arg.length) == 'undefined') ); +}; + +var isa_array = exports.isaArray = function isa_array(arg) { + // determine if arg is an array or is array-like + if (typeof(arg) == 'array') return true; + return( !!arg && (typeof(arg) == 'object') && (typeof(arg.length) != 'undefined') ); +}; + +var first_key = exports.firstKey = function first_key(hash) { + // return first key from hash (unordered) + for (var key in hash) return key; + return null; // no keys in hash +}; + +var num_keys = exports.numKeys = function num_keys(hash) { + // count the number of keys in a hash + var count = 0; + for (var a in hash) count++; + return count; +}; |