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var _ = require("underscore");
var xmlbuilder = require("xmlbuilder");
exports.writeString = writeString;
function writeString(root, namespaces) {
var uriToPrefix = _.invert(namespaces);
var nodeWriters = {
element: writeElement,
text: writeTextNode
};
function writeNode(builder, node) {
return nodeWriters[node.type](builder, node);
}
function writeElement(builder, element) {
var elementBuilder = builder.element(mapElementName(element.name), element.attributes);
element.children.forEach(function(child) {
writeNode(elementBuilder, child);
});
}
function mapElementName(name) {
var longFormMatch = /^\{(.*)\}(.*)$/.exec(name);
if (longFormMatch) {
var prefix = uriToPrefix[longFormMatch[1]];
return prefix + (prefix === "" ? "" : ":") + longFormMatch[2];
} else {
return name;
}
}
function writeDocument(root) {
var builder = xmlbuilder
.create(mapElementName(root.name), {
version: '1.0',
encoding: 'UTF-8',
standalone: true
});
_.forEach(namespaces, function(uri, prefix) {
var key = "xmlns" + (prefix === "" ? "" : ":" + prefix);
builder.attribute(key, uri);
});
root.children.forEach(function(child) {
writeNode(builder, child);
});
return builder.end();
}
return writeDocument(root);
}
function writeTextNode(builder, node) {
builder.text(node.value);
}
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