xmlbuilder2
Version:
An XML builder for node.js
222 lines • 7.72 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
var ObjectWriter_1 = require("./ObjectWriter");
var util_1 = require("@oozcitak/util");
var BaseWriter_1 = require("./BaseWriter");
/**
* Serializes XML nodes into a JSON string.
*/
var JSONWriter = /** @class */ (function (_super) {
__extends(JSONWriter, _super);
/**
* Initializes a new instance of `JSONWriter`.
*
* @param builderOptions - XML builder options
* @param writerOptions - serialization options
*/
function JSONWriter(builderOptions, writerOptions) {
var _this = _super.call(this, builderOptions) || this;
// provide default options
_this._writerOptions = util_1.applyDefaults(writerOptions, {
wellFormed: false,
prettyPrint: false,
indent: ' ',
newline: '\n',
offset: 0,
group: false,
verbose: false
});
return _this;
}
/**
* Produces an XML serialization of the given node.
*
* @param node - node to serialize
* @param writerOptions - serialization options
*/
JSONWriter.prototype.serialize = function (node) {
// convert to object
var objectWriterOptions = util_1.applyDefaults(this._writerOptions, {
format: "object",
wellFormed: false
});
var objectWriter = new ObjectWriter_1.ObjectWriter(this._builderOptions, objectWriterOptions);
var val = objectWriter.serialize(node);
// recursively convert object into JSON string
return this._beginLine(this._writerOptions, 0) + this._convertObject(val, this._writerOptions);
};
/**
* Produces an XML serialization of the given object.
*
* @param obj - object to serialize
* @param options - serialization options
* @param level - depth of the XML tree
*/
JSONWriter.prototype._convertObject = function (obj, options, level) {
var e_1, _a;
var _this = this;
if (level === void 0) { level = 0; }
var markup = '';
var isLeaf = this._isLeafNode(obj);
if (util_1.isArray(obj)) {
markup += '[';
var len = obj.length;
var i = 0;
try {
for (var obj_1 = __values(obj), obj_1_1 = obj_1.next(); !obj_1_1.done; obj_1_1 = obj_1.next()) {
var val = obj_1_1.value;
markup += this._endLine(options, level + 1) +
this._beginLine(options, level + 1) +
this._convertObject(val, options, level + 1);
if (i < len - 1) {
markup += ',';
}
i++;
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (obj_1_1 && !obj_1_1.done && (_a = obj_1.return)) _a.call(obj_1);
}
finally { if (e_1) throw e_1.error; }
}
markup += this._endLine(options, level) + this._beginLine(options, level);
markup += ']';
}
else if (util_1.isObject(obj)) {
markup += '{';
var len_1 = util_1.objectLength(obj);
var i_1 = 0;
util_1.forEachObject(obj, function (key, val) {
if (isLeaf && options.prettyPrint) {
markup += ' ';
}
else {
markup += _this._endLine(options, level + 1) + _this._beginLine(options, level + 1);
}
markup += _this._key(key);
if (options.prettyPrint) {
markup += ' ';
}
markup += _this._convertObject(val, options, level + 1);
if (i_1 < len_1 - 1) {
markup += ',';
}
i_1++;
}, this);
if (isLeaf && options.prettyPrint) {
markup += ' ';
}
else {
markup += this._endLine(options, level) + this._beginLine(options, level);
}
markup += '}';
}
else {
markup += this._val(obj);
}
return markup;
};
/**
* Produces characters to be prepended to a line of string in pretty-print
* mode.
*
* @param options - serialization options
* @param level - current depth of the XML tree
*/
JSONWriter.prototype._beginLine = function (options, level) {
if (!options.prettyPrint) {
return '';
}
else {
var indentLevel = options.offset + level + 1;
if (indentLevel > 0) {
return new Array(indentLevel).join(options.indent);
}
}
return '';
};
/**
* Produces characters to be appended to a line of string in pretty-print
* mode.
*
* @param options - serialization options
* @param level - current depth of the XML tree
*/
JSONWriter.prototype._endLine = function (options, level) {
if (!options.prettyPrint) {
return '';
}
else {
return options.newline;
}
};
/**
* Produces a JSON key string delimited with double quotes.
*/
JSONWriter.prototype._key = function (key) {
return "\"" + key + "\":";
};
/**
* Produces a JSON value string delimited with double quotes.
*/
JSONWriter.prototype._val = function (val) {
return JSON.stringify(val);
};
/**
* Determines if an object is a leaf node.
*
* @param obj
*/
JSONWriter.prototype._isLeafNode = function (obj) {
return this._descendantCount(obj) <= 1;
};
/**
* Counts the number of descendants of the given object.
*
* @param obj
* @param count
*/
JSONWriter.prototype._descendantCount = function (obj, count) {
var _this = this;
if (count === void 0) { count = 0; }
if (util_1.isArray(obj)) {
util_1.forEachArray(obj, function (val) { return count += _this._descendantCount(val, count); }, this);
}
else if (util_1.isObject(obj)) {
util_1.forEachObject(obj, function (key, val) { return count += _this._descendantCount(val, count); }, this);
}
else {
count++;
}
return count;
};
return JSONWriter;
}(BaseWriter_1.BaseWriter));
exports.JSONWriter = JSONWriter;
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