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annotate xml2json.js @ 2:eb5b6d3ab09b

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Better import of ns and jid; fix email and missing ns.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 13 Jul 2011 13:11:54 +0200
parents f62b5c395a48
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 /* This work is licensed under Creative Commons GNU LGPL License.
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2
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3 License: http://creativecommons.org/licenses/LGPL/2.1/
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4 Version: 0.9
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5 Author: Stefan Goessner/2006
2
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6 Web: http://goessner.net/
0
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7 */
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8 var Element = function() {
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9 this.getChildren = function(name, ns) {
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10 var children = [];
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11 var r = false;
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12
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13 for (var i in this) {
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14 if (typeof this[i] !== 'object')
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15 continue;
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16
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17 var child = this[i];
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18 if((!name || i === name) &&
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19 (!ns || child[0]['@xmlns'] === ns)) {
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20 for (var j=0; j<child.length; j++)
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21 children.push(child[j]);
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22 r = true;
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23 }
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24 }
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25
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26 if (r)
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27 return children;
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28
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29 return null;
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30 };
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31
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32 this.getChild = function(name, ns) {
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33 var children = this.getChildren(name, ns);
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34 if (!children || children.length != 1)
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35 return null;
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36
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37 return children[0];
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38 };
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39
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40 this.getAttribute = function(name, ns) {
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41 return this['@'+name]; // FIXME: namespace
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42 };
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43
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44 this.getText = function() {
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45 return this;
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46 }
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47 };
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48
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49 function xml2json(xml, tab) {
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50 var X = {
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51 toObj: function(xml, parentNS) {
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52 var o = new Element();
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53 if (xml.nodeType==1) { // element node ..
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54 if (xml.attributes.length) // element with attributes ..
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55 for (var i=0; i<xml.attributes.length; i++) {
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56 o["@"+xml.attributes[i].nodeName] = (xml.attributes[i].nodeValue||"").toString();
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57 if (xml.attributes[i].nodeName === 'xmlns')
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58 parentNS = xml.attributes[i].nodeValue;
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59 }
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60 if (!o['@xmlns'])
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61 o['@xmlns'] = parentNS;
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62 if (xml.firstChild) { // element has child nodes ..
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63 var textChild=0, cdataChild=0, hasElementChild=false;
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64 for (var n=xml.firstChild; n; n=n.nextSibling) {
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65 if (n.nodeType==1) hasElementChild = true;
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66 else if (n.nodeType==3 && n.nodeValue.match(/[\S]/)) textChild++; // non-whitespace text
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67 else if (n.nodeType==4) cdataChild++; // cdata section node
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68 }
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69 if (hasElementChild) {
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70 // structured element with evtl. a single text or/and cdata
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71 // node ..
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72 if (textChild < 2 && cdataChild < 2) {
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73 X.removeWhite(xml);
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74 for (var n=xml.firstChild; n; n=n.nextSibling)
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75 if (n.nodeType == 3) // text node
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76 o["#text"] = X.escape(n.nodeValue);
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77 else if (n.nodeType == 4) // cdata node
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78 o["#cdata"] = X.escape(n.nodeValue);
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79 else {
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80 if(!o[n.nodeName])
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81 o[n.nodeName] = [X.toObj(n, parentNS)];
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82 else
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83 o[n.nodeName].push(X.toObj(n, parentNS));
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84 }
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85 }
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86 else { // mixed content
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87 if (!xml.attributes.length)
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88 o = X.escape(X.innerXml(xml));
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89 else
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90 o["#text"] = X.escape(X.innerXml(xml));
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91 }
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92 }
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93 else if (textChild) { // pure text
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94 if (!xml.attributes.length)
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95 o = X.escape(X.innerXml(xml)).replace(/\\\\/g, '\\');
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96 else
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97 o["#text"] = X.escape(X.innerXml(xml));
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98 }
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99 else if (cdataChild) { // cdata
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100 if (cdataChild > 1)
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101 o = X.escape(X.innerXml(xml));
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102 else
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103 for (var n=xml.firstChild; n; n=n.nextSibling)
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104 o["#cdata"] = X.escape(n.nodeValue);
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105 }
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106 }
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107
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108 return (!xml.attributes.length && !xml.firstChild) ? null : o;
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109 }
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110
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111 if (xml.nodeType==9) // document.node
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112 return X.toObj(xml.documentElement);
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113
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114 throw("unhandled node type: " + xml.nodeType);
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115 },
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116 innerXml: function(node) {
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117 var s = "";
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118 if ("innerHTML" in node)
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119 s = node.innerHTML;
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120 else {
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121 var asXml = function(n) {
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122 var s = "";
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123 if (n.nodeType == 1) {
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124 s += "<" + n.nodeName;
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125 for (var i=0; i<n.attributes.length;i++)
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126 s += " " + n.attributes[i].nodeName + "=\"" + (n.attributes[i].nodeValue||"").toString() + "\"";
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127 if (n.firstChild) {
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128 s += ">";
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129 for (var c=n.firstChild; c; c=c.nextSibling)
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130 s += asXml(c);
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131 s += "</"+n.nodeName+">";
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132 }
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133 else
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134 s += "/>";
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135 }
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136 else if (n.nodeType == 3)
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137 s += n.nodeValue;
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138 else if (n.nodeType == 4)
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139 s += "<![CDATA[" + n.nodeValue + "]]>";
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140 return s;
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141 };
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142 for (var c=node.firstChild; c; c=c.nextSibling)
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143 s += asXml(c);
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144 }
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145 return s;
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146 },
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147 escape: function(txt) {
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148 return txt.replace(/[\\]/g, "\\\\")
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149 .replace(/[\"]/g, '\\"')
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150 .replace(/[\n]/g, '\\n')
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151 .replace(/[\r]/g, '\\r');
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152 },
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153 removeWhite: function(e) {
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154 e.normalize();
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155 for (var n = e.firstChild; n; ) {
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156 if (n.nodeType == 3) { // text node
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157 if (!n.nodeValue.match(/[^ \f\n\r\t\v]/)) { // pure whitespace text node
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158 var nxt = n.nextSibling;
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159 e.removeChild(n);
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160 n = nxt;
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161 }
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162 else
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163 n = n.nextSibling;
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164 }
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165 else if (n.nodeType == 1) { // element node
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166 X.removeWhite(n);
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167 n = n.nextSibling;
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168 }
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169 else // any other node
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170 n = n.nextSibling;
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171 }
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172 return e;
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173 }
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174 };
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175 if (xml.nodeType == 9) // document node
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176 xml = xml.documentElement;
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177
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178 //modified
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179 return X.toObj(X.removeWhite(xml));
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180 }