5020 lines
141 KiB
JavaScript
Executable File
5020 lines
141 KiB
JavaScript
Executable File
require=(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
|
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(function (Buffer){
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module.exports = BinaryReader;
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function BinaryReader(buffer, isBigEndian) {
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this.buffer = buffer;
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this.position = 0;
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this.isBigEndian = isBigEndian || false;
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}
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function _read(readLE, readBE, size) {
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return function () {
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var value;
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if (this.isBigEndian)
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value = readBE.call(this.buffer, this.position);
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else
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value = readLE.call(this.buffer, this.position);
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this.position += size;
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return value;
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};
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}
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BinaryReader.prototype.readUInt8 = _read(Buffer.prototype.readUInt8, Buffer.prototype.readUInt8, 1);
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BinaryReader.prototype.readUInt16 = _read(Buffer.prototype.readUInt16LE, Buffer.prototype.readUInt16BE, 2);
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BinaryReader.prototype.readUInt32 = _read(Buffer.prototype.readUInt32LE, Buffer.prototype.readUInt32BE, 4);
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BinaryReader.prototype.readInt8 = _read(Buffer.prototype.readInt8, Buffer.prototype.readInt8, 1);
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BinaryReader.prototype.readInt16 = _read(Buffer.prototype.readInt16LE, Buffer.prototype.readInt16BE, 2);
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BinaryReader.prototype.readInt32 = _read(Buffer.prototype.readInt32LE, Buffer.prototype.readInt32BE, 4);
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BinaryReader.prototype.readFloat = _read(Buffer.prototype.readFloatLE, Buffer.prototype.readFloatBE, 4);
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BinaryReader.prototype.readDouble = _read(Buffer.prototype.readDoubleLE, Buffer.prototype.readDoubleBE, 8);
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BinaryReader.prototype.readVarInt = function () {
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var nextByte,
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result = 0,
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bytesRead = 0;
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do {
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nextByte = this.buffer[this.position + bytesRead];
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result += (nextByte & 0x7F) << (7 * bytesRead);
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bytesRead++;
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} while (nextByte >= 0x80);
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this.position += bytesRead;
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return result;
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};
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}).call(this,require("buffer").Buffer)
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},{"buffer":"buffer"}],2:[function(require,module,exports){
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(function (Buffer){
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module.exports = BinaryWriter;
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function BinaryWriter(size, allowResize) {
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this.buffer = new Buffer(size);
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this.position = 0;
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this.allowResize = allowResize;
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}
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function _write(write, size) {
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return function (value, noAssert) {
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this.ensureSize(size);
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write.call(this.buffer, value, this.position, noAssert);
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this.position += size;
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};
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}
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BinaryWriter.prototype.writeUInt8 = _write(Buffer.prototype.writeUInt8, 1);
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BinaryWriter.prototype.writeUInt16LE = _write(Buffer.prototype.writeUInt16LE, 2);
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BinaryWriter.prototype.writeUInt16BE = _write(Buffer.prototype.writeUInt16BE, 2);
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BinaryWriter.prototype.writeUInt32LE = _write(Buffer.prototype.writeUInt32LE, 4);
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BinaryWriter.prototype.writeUInt32BE = _write(Buffer.prototype.writeUInt32BE, 4);
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BinaryWriter.prototype.writeInt8 = _write(Buffer.prototype.writeInt8, 1);
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BinaryWriter.prototype.writeInt16LE = _write(Buffer.prototype.writeInt16LE, 2);
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BinaryWriter.prototype.writeInt16BE = _write(Buffer.prototype.writeInt16BE, 2);
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BinaryWriter.prototype.writeInt32LE = _write(Buffer.prototype.writeInt32LE, 4);
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BinaryWriter.prototype.writeInt32BE = _write(Buffer.prototype.writeInt32BE, 4);
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BinaryWriter.prototype.writeFloatLE = _write(Buffer.prototype.writeFloatLE, 4);
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BinaryWriter.prototype.writeFloatBE = _write(Buffer.prototype.writeFloatBE, 4);
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BinaryWriter.prototype.writeDoubleLE = _write(Buffer.prototype.writeDoubleLE, 8);
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BinaryWriter.prototype.writeDoubleBE = _write(Buffer.prototype.writeDoubleBE, 8);
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BinaryWriter.prototype.writeBuffer = function (buffer) {
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this.ensureSize(buffer.length);
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buffer.copy(this.buffer, this.position, 0, buffer.length);
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this.position += buffer.length;
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};
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BinaryWriter.prototype.writeVarInt = function (value) {
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var length = 1;
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while ((value & 0xFFFFFF80) !== 0) {
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this.writeUInt8((value & 0x7F) | 0x80);
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value >>>= 7;
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length++;
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}
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this.writeUInt8(value & 0x7F);
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return length;
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};
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BinaryWriter.prototype.ensureSize = function (size) {
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if (this.buffer.length < this.position + size) {
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if (this.allowResize) {
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var tempBuffer = new Buffer(this.position + size);
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this.buffer.copy(tempBuffer, 0, 0, this.buffer.length);
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this.buffer = tempBuffer;
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}
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else {
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throw new RangeError('index out of range');
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}
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}
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};
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}).call(this,require("buffer").Buffer)
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},{"buffer":"buffer"}],3:[function(require,module,exports){
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(function (Buffer){
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module.exports = Geometry;
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var Types = require('./types');
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var Point = require('./point');
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var LineString = require('./linestring');
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var Polygon = require('./polygon');
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var MultiPoint = require('./multipoint');
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var MultiLineString = require('./multilinestring');
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var MultiPolygon = require('./multipolygon');
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var GeometryCollection = require('./geometrycollection');
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var BinaryReader = require('./binaryreader');
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var BinaryWriter = require('./binarywriter');
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var WktParser = require('./wktparser');
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var ZigZag = require('./zigzag.js');
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function Geometry() {
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this.srid = undefined;
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this.hasZ = false;
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this.hasM = false;
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}
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Geometry.parse = function (value, options) {
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var valueType = typeof value;
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if (valueType === 'string' || value instanceof WktParser)
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return Geometry._parseWkt(value);
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else if (Buffer.isBuffer(value) || value instanceof BinaryReader)
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return Geometry._parseWkb(value, options);
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else
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throw new Error('first argument must be a string or Buffer');
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};
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Geometry._parseWkt = function (value) {
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var wktParser,
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srid;
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if (value instanceof WktParser)
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wktParser = value;
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else
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wktParser = new WktParser(value);
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var match = wktParser.matchRegex([/^SRID=(\d+);/]);
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if (match)
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srid = parseInt(match[1], 10);
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var geometryType = wktParser.matchType();
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var dimension = wktParser.matchDimension();
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var options = {
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srid: srid,
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hasZ: dimension.hasZ,
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hasM: dimension.hasM
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};
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switch (geometryType) {
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case Types.wkt.Point:
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return Point._parseWkt(wktParser, options);
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case Types.wkt.LineString:
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return LineString._parseWkt(wktParser, options);
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case Types.wkt.Polygon:
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return Polygon._parseWkt(wktParser, options);
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case Types.wkt.MultiPoint:
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return MultiPoint._parseWkt(wktParser, options);
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case Types.wkt.MultiLineString:
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return MultiLineString._parseWkt(wktParser, options);
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case Types.wkt.MultiPolygon:
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return MultiPolygon._parseWkt(wktParser, options);
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case Types.wkt.GeometryCollection:
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return GeometryCollection._parseWkt(wktParser, options);
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}
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};
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Geometry._parseWkb = function (value, parentOptions) {
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var binaryReader,
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wkbType,
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geometryType,
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options = {};
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|
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if (value instanceof BinaryReader)
|
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binaryReader = value;
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|
else
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binaryReader = new BinaryReader(value);
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binaryReader.isBigEndian = !binaryReader.readInt8();
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wkbType = binaryReader.readUInt32();
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options.hasSrid = (wkbType & 0x20000000) === 0x20000000;
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options.isEwkb = (wkbType & 0x20000000) || (wkbType & 0x40000000) || (wkbType & 0x80000000);
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if (options.hasSrid)
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options.srid = binaryReader.readUInt32();
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options.hasZ = false;
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options.hasM = false;
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if (!options.isEwkb && (!parentOptions || !parentOptions.isEwkb)) {
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if (wkbType >= 1000 && wkbType < 2000) {
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options.hasZ = true;
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geometryType = wkbType - 1000;
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}
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else if (wkbType >= 2000 && wkbType < 3000) {
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options.hasM = true;
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geometryType = wkbType - 2000;
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}
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else if (wkbType >= 3000 && wkbType < 4000) {
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options.hasZ = true;
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options.hasM = true;
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geometryType = wkbType - 3000;
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}
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else {
|
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geometryType = wkbType;
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}
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|
}
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else {
|
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if (wkbType & 0x80000000)
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options.hasZ = true;
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if (wkbType & 0x40000000)
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options.hasM = true;
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geometryType = wkbType & 0xF;
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}
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switch (geometryType) {
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case Types.wkb.Point:
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return Point._parseWkb(binaryReader, options);
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case Types.wkb.LineString:
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return LineString._parseWkb(binaryReader, options);
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case Types.wkb.Polygon:
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return Polygon._parseWkb(binaryReader, options);
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case Types.wkb.MultiPoint:
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return MultiPoint._parseWkb(binaryReader, options);
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case Types.wkb.MultiLineString:
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return MultiLineString._parseWkb(binaryReader, options);
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case Types.wkb.MultiPolygon:
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return MultiPolygon._parseWkb(binaryReader, options);
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case Types.wkb.GeometryCollection:
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return GeometryCollection._parseWkb(binaryReader, options);
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default:
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throw new Error('GeometryType ' + geometryType + ' not supported');
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}
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};
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Geometry.parseTwkb = function (value) {
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var binaryReader,
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options = {};
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if (value instanceof BinaryReader)
|
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binaryReader = value;
|
|
else
|
|
binaryReader = new BinaryReader(value);
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|
|
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var type = binaryReader.readUInt8();
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var metadataHeader = binaryReader.readUInt8();
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var geometryType = type & 0x0F;
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options.precision = ZigZag.decode(type >> 4);
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options.precisionFactor = Math.pow(10, options.precision);
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options.hasBoundingBox = metadataHeader >> 0 & 1;
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options.hasSizeAttribute = metadataHeader >> 1 & 1;
|
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options.hasIdList = metadataHeader >> 2 & 1;
|
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options.hasExtendedPrecision = metadataHeader >> 3 & 1;
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options.isEmpty = metadataHeader >> 4 & 1;
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if (options.hasExtendedPrecision) {
|
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var extendedPrecision = binaryReader.readUInt8();
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options.hasZ = (extendedPrecision & 0x01) === 0x01;
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options.hasM = (extendedPrecision & 0x02) === 0x02;
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options.zPrecision = ZigZag.decode((extendedPrecision & 0x1C) >> 2);
|
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options.zPrecisionFactor = Math.pow(10, options.zPrecision);
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options.mPrecision = ZigZag.decode((extendedPrecision & 0xE0) >> 5);
|
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options.mPrecisionFactor = Math.pow(10, options.mPrecision);
|
|
}
|
|
else {
|
|
options.hasZ = false;
|
|
options.hasM = false;
|
|
}
|
|
|
|
if (options.hasSizeAttribute)
|
|
binaryReader.readVarInt();
|
|
if (options.hasBoundingBox) {
|
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var dimensions = 2;
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|
|
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if (options.hasZ)
|
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dimensions++;
|
|
if (options.hasM)
|
|
dimensions++;
|
|
|
|
for (var i = 0; i < dimensions; i++) {
|
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binaryReader.readVarInt();
|
|
binaryReader.readVarInt();
|
|
}
|
|
}
|
|
|
|
switch (geometryType) {
|
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case Types.wkb.Point:
|
|
return Point._parseTwkb(binaryReader, options);
|
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case Types.wkb.LineString:
|
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return LineString._parseTwkb(binaryReader, options);
|
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case Types.wkb.Polygon:
|
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return Polygon._parseTwkb(binaryReader, options);
|
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case Types.wkb.MultiPoint:
|
|
return MultiPoint._parseTwkb(binaryReader, options);
|
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case Types.wkb.MultiLineString:
|
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return MultiLineString._parseTwkb(binaryReader, options);
|
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case Types.wkb.MultiPolygon:
|
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return MultiPolygon._parseTwkb(binaryReader, options);
|
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case Types.wkb.GeometryCollection:
|
|
return GeometryCollection._parseTwkb(binaryReader, options);
|
|
default:
|
|
throw new Error('GeometryType ' + geometryType + ' not supported');
|
|
}
|
|
};
|
|
|
|
Geometry.parseGeoJSON = function (value) {
|
|
return Geometry._parseGeoJSON(value);
|
|
};
|
|
|
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Geometry._parseGeoJSON = function (value, isSubGeometry) {
|
|
var geometry;
|
|
|
|
switch (value.type) {
|
|
case Types.geoJSON.Point:
|
|
geometry = Point._parseGeoJSON(value); break;
|
|
case Types.geoJSON.LineString:
|
|
geometry = LineString._parseGeoJSON(value); break;
|
|
case Types.geoJSON.Polygon:
|
|
geometry = Polygon._parseGeoJSON(value); break;
|
|
case Types.geoJSON.MultiPoint:
|
|
geometry = MultiPoint._parseGeoJSON(value); break;
|
|
case Types.geoJSON.MultiLineString:
|
|
geometry = MultiLineString._parseGeoJSON(value); break;
|
|
case Types.geoJSON.MultiPolygon:
|
|
geometry = MultiPolygon._parseGeoJSON(value); break;
|
|
case Types.geoJSON.GeometryCollection:
|
|
geometry = GeometryCollection._parseGeoJSON(value); break;
|
|
default:
|
|
throw new Error('GeometryType ' + value.type + ' not supported');
|
|
}
|
|
|
|
if (value.crs && value.crs.type && value.crs.type === 'name' && value.crs.properties && value.crs.properties.name) {
|
|
var crs = value.crs.properties.name;
|
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|
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if (crs.indexOf('EPSG:') === 0)
|
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geometry.srid = parseInt(crs.substring(5));
|
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else if (crs.indexOf('urn:ogc:def:crs:EPSG::') === 0)
|
|
geometry.srid = parseInt(crs.substring(22));
|
|
else
|
|
throw new Error('Unsupported crs: ' + crs);
|
|
}
|
|
else if (!isSubGeometry) {
|
|
geometry.srid = 4326;
|
|
}
|
|
|
|
return geometry;
|
|
};
|
|
|
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Geometry.prototype.toEwkt = function () {
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return 'SRID=' + this.srid + ';' + this.toWkt();
|
|
};
|
|
|
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Geometry.prototype.toEwkb = function () {
|
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var ewkb = new BinaryWriter(this._getWkbSize() + 4);
|
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var wkb = this.toWkb();
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ewkb.writeInt8(1);
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ewkb.writeUInt32LE((wkb.slice(1, 5).readUInt32LE(0) | 0x20000000) >>> 0, true);
|
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ewkb.writeUInt32LE(this.srid);
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|
|
ewkb.writeBuffer(wkb.slice(5));
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|
|
return ewkb.buffer;
|
|
};
|
|
|
|
Geometry.prototype._getWktType = function (wktType, isEmpty) {
|
|
var wkt = wktType;
|
|
|
|
if (this.hasZ && this.hasM)
|
|
wkt += ' ZM ';
|
|
else if (this.hasZ)
|
|
wkt += ' Z ';
|
|
else if (this.hasM)
|
|
wkt += ' M ';
|
|
|
|
if (isEmpty && !this.hasZ && !this.hasM)
|
|
wkt += ' ';
|
|
|
|
if (isEmpty)
|
|
wkt += 'EMPTY';
|
|
|
|
return wkt;
|
|
};
|
|
|
|
Geometry.prototype._getWktCoordinate = function (point) {
|
|
var coordinates = point.x + ' ' + point.y;
|
|
|
|
if (this.hasZ)
|
|
coordinates += ' ' + point.z;
|
|
if (this.hasM)
|
|
coordinates += ' ' + point.m;
|
|
|
|
return coordinates;
|
|
};
|
|
|
|
Geometry.prototype._writeWkbType = function (wkb, geometryType, parentOptions) {
|
|
var dimensionType = 0;
|
|
|
|
if (typeof this.srid === 'undefined' && (!parentOptions || typeof parentOptions.srid === 'undefined')) {
|
|
if (this.hasZ && this.hasM)
|
|
dimensionType += 3000;
|
|
else if (this.hasZ)
|
|
dimensionType += 1000;
|
|
else if (this.hasM)
|
|
dimensionType += 2000;
|
|
}
|
|
else {
|
|
if (this.hasZ)
|
|
dimensionType |= 0x80000000;
|
|
if (this.hasM)
|
|
dimensionType |= 0x40000000;
|
|
}
|
|
|
|
wkb.writeUInt32LE((dimensionType + geometryType) >>> 0, true);
|
|
};
|
|
|
|
Geometry.getTwkbPrecision = function (xyPrecision, zPrecision, mPrecision) {
|
|
return {
|
|
xy: xyPrecision,
|
|
z: zPrecision,
|
|
m: mPrecision,
|
|
xyFactor: Math.pow(10, xyPrecision),
|
|
zFactor: Math.pow(10, zPrecision),
|
|
mFactor: Math.pow(10, mPrecision)
|
|
};
|
|
};
|
|
|
|
Geometry.prototype._writeTwkbHeader = function (twkb, geometryType, precision, isEmpty) {
|
|
var type = (ZigZag.encode(precision.xy) << 4) + geometryType;
|
|
var metadataHeader = (this.hasZ || this.hasM) << 3;
|
|
metadataHeader += isEmpty << 4;
|
|
|
|
twkb.writeUInt8(type);
|
|
twkb.writeUInt8(metadataHeader);
|
|
|
|
if (this.hasZ || this.hasM) {
|
|
var extendedPrecision = 0;
|
|
if (this.hasZ)
|
|
extendedPrecision |= 0x1;
|
|
if (this.hasM)
|
|
extendedPrecision |= 0x2;
|
|
|
|
twkb.writeUInt8(extendedPrecision);
|
|
}
|
|
};
|
|
|
|
Geometry.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = {};
|
|
|
|
if (this.srid) {
|
|
if (options) {
|
|
if (options.shortCrs) {
|
|
geoJSON.crs = {
|
|
type: 'name',
|
|
properties: {
|
|
name: 'EPSG:' + this.srid
|
|
}
|
|
};
|
|
}
|
|
else if (options.longCrs) {
|
|
geoJSON.crs = {
|
|
type: 'name',
|
|
properties: {
|
|
name: 'urn:ogc:def:crs:EPSG::' + this.srid
|
|
}
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
}).call(this,{"isBuffer":require("../node_modules/is-buffer/index.js")})
|
|
},{"../node_modules/is-buffer/index.js":17,"./binaryreader":1,"./binarywriter":2,"./geometrycollection":4,"./linestring":5,"./multilinestring":6,"./multipoint":7,"./multipolygon":8,"./point":9,"./polygon":10,"./types":11,"./wktparser":12,"./zigzag.js":13}],4:[function(require,module,exports){
|
|
module.exports = GeometryCollection;
|
|
|
|
var util = require('util');
|
|
|
|
var Types = require('./types');
|
|
var Geometry = require('./geometry');
|
|
var BinaryWriter = require('./binarywriter');
|
|
|
|
function GeometryCollection(geometries, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.geometries = geometries || [];
|
|
this.srid = srid;
|
|
|
|
if (this.geometries.length > 0) {
|
|
this.hasZ = this.geometries[0].hasZ;
|
|
this.hasM = this.geometries[0].hasM;
|
|
}
|
|
}
|
|
|
|
util.inherits(GeometryCollection, Geometry);
|
|
|
|
GeometryCollection.Z = function (geometries, srid) {
|
|
var geometryCollection = new GeometryCollection(geometries, srid);
|
|
geometryCollection.hasZ = true;
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection.M = function (geometries, srid) {
|
|
var geometryCollection = new GeometryCollection(geometries, srid);
|
|
geometryCollection.hasM = true;
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection.ZM = function (geometries, srid) {
|
|
var geometryCollection = new GeometryCollection(geometries, srid);
|
|
geometryCollection.hasZ = true;
|
|
geometryCollection.hasM = true;
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection._parseWkt = function (value, options) {
|
|
var geometryCollection = new GeometryCollection();
|
|
geometryCollection.srid = options.srid;
|
|
geometryCollection.hasZ = options.hasZ;
|
|
geometryCollection.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return geometryCollection;
|
|
|
|
value.expectGroupStart();
|
|
|
|
do {
|
|
geometryCollection.geometries.push(Geometry.parse(value));
|
|
} while (value.isMatch([',']));
|
|
|
|
value.expectGroupEnd();
|
|
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection._parseWkb = function (value, options) {
|
|
var geometryCollection = new GeometryCollection();
|
|
geometryCollection.srid = options.srid;
|
|
geometryCollection.hasZ = options.hasZ;
|
|
geometryCollection.hasM = options.hasM;
|
|
|
|
var geometryCount = value.readUInt32();
|
|
|
|
for (var i = 0; i < geometryCount; i++)
|
|
geometryCollection.geometries.push(Geometry.parse(value, options));
|
|
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection._parseTwkb = function (value, options) {
|
|
var geometryCollection = new GeometryCollection();
|
|
geometryCollection.hasZ = options.hasZ;
|
|
geometryCollection.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return geometryCollection;
|
|
|
|
var geometryCount = value.readVarInt();
|
|
|
|
for (var i = 0; i < geometryCount; i++)
|
|
geometryCollection.geometries.push(Geometry.parseTwkb(value));
|
|
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection._parseGeoJSON = function (value) {
|
|
var geometryCollection = new GeometryCollection();
|
|
|
|
for (var i = 0; i < value.geometries.length; i++)
|
|
geometryCollection.geometries.push(Geometry._parseGeoJSON(value.geometries[i], true));
|
|
|
|
if (geometryCollection.geometries.length > 0)
|
|
geometryCollection.hasZ = geometryCollection.geometries[0].hasZ;
|
|
|
|
return geometryCollection;
|
|
};
|
|
|
|
GeometryCollection.prototype.toWkt = function () {
|
|
if (this.geometries.length === 0)
|
|
return this._getWktType(Types.wkt.GeometryCollection, true);
|
|
|
|
var wkt = this._getWktType(Types.wkt.GeometryCollection, false) + '(';
|
|
|
|
for (var i = 0; i < this.geometries.length; i++)
|
|
wkt += this.geometries[i].toWkt() + ',';
|
|
|
|
wkt = wkt.slice(0, -1);
|
|
wkt += ')';
|
|
|
|
return wkt;
|
|
};
|
|
|
|
GeometryCollection.prototype.toWkb = function () {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
|
|
this._writeWkbType(wkb, Types.wkb.GeometryCollection);
|
|
wkb.writeUInt32LE(this.geometries.length);
|
|
|
|
for (var i = 0; i < this.geometries.length; i++)
|
|
wkb.writeBuffer(this.geometries[i].toWkb({ srid: this.srid }));
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
GeometryCollection.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = this.geometries.length === 0;
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.GeometryCollection, precision, isEmpty);
|
|
|
|
if (this.geometries.length > 0) {
|
|
twkb.writeVarInt(this.geometries.length);
|
|
|
|
for (var i = 0; i < this.geometries.length; i++)
|
|
twkb.writeBuffer(this.geometries[i].toTwkb());
|
|
}
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
GeometryCollection.prototype._getWkbSize = function () {
|
|
var size = 1 + 4 + 4;
|
|
|
|
for (var i = 0; i < this.geometries.length; i++)
|
|
size += this.geometries[i]._getWkbSize();
|
|
|
|
return size;
|
|
};
|
|
|
|
GeometryCollection.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.GeometryCollection;
|
|
geoJSON.geometries = [];
|
|
|
|
for (var i = 0; i < this.geometries.length; i++)
|
|
geoJSON.geometries.push(this.geometries[i].toGeoJSON());
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./types":11,"util":20}],5:[function(require,module,exports){
|
|
module.exports = LineString;
|
|
|
|
var util = require('util');
|
|
|
|
var Geometry = require('./geometry');
|
|
var Types = require('./types');
|
|
var Point = require('./point');
|
|
var BinaryWriter = require('./binarywriter');
|
|
|
|
function LineString(points, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.points = points || [];
|
|
this.srid = srid;
|
|
|
|
if (this.points.length > 0) {
|
|
this.hasZ = this.points[0].hasZ;
|
|
this.hasM = this.points[0].hasM;
|
|
}
|
|
}
|
|
|
|
util.inherits(LineString, Geometry);
|
|
|
|
LineString.Z = function (points, srid) {
|
|
var lineString = new LineString(points, srid);
|
|
lineString.hasZ = true;
|
|
return lineString;
|
|
};
|
|
|
|
LineString.M = function (points, srid) {
|
|
var lineString = new LineString(points, srid);
|
|
lineString.hasM = true;
|
|
return lineString;
|
|
};
|
|
|
|
LineString.ZM = function (points, srid) {
|
|
var lineString = new LineString(points, srid);
|
|
lineString.hasZ = true;
|
|
lineString.hasM = true;
|
|
return lineString;
|
|
};
|
|
|
|
LineString._parseWkt = function (value, options) {
|
|
var lineString = new LineString();
|
|
lineString.srid = options.srid;
|
|
lineString.hasZ = options.hasZ;
|
|
lineString.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return lineString;
|
|
|
|
value.expectGroupStart();
|
|
lineString.points.push.apply(lineString.points, value.matchCoordinates(options));
|
|
value.expectGroupEnd();
|
|
|
|
return lineString;
|
|
};
|
|
|
|
LineString._parseWkb = function (value, options) {
|
|
var lineString = new LineString();
|
|
lineString.srid = options.srid;
|
|
lineString.hasZ = options.hasZ;
|
|
lineString.hasM = options.hasM;
|
|
|
|
var pointCount = value.readUInt32();
|
|
|
|
for (var i = 0; i < pointCount; i++)
|
|
lineString.points.push(Point._readWkbPoint(value, options));
|
|
|
|
return lineString;
|
|
};
|
|
|
|
LineString._parseTwkb = function (value, options) {
|
|
var lineString = new LineString();
|
|
lineString.hasZ = options.hasZ;
|
|
lineString.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return lineString;
|
|
|
|
var previousPoint = new Point(0, 0, options.hasZ ? 0 : undefined, options.hasM ? 0 : undefined);
|
|
var pointCount = value.readVarInt();
|
|
|
|
for (var i = 0; i < pointCount; i++)
|
|
lineString.points.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
return lineString;
|
|
};
|
|
|
|
LineString._parseGeoJSON = function (value) {
|
|
var lineString = new LineString();
|
|
|
|
if (value.coordinates.length > 0)
|
|
lineString.hasZ = value.coordinates[0].length > 2;
|
|
|
|
for (var i = 0; i < value.coordinates.length; i++)
|
|
lineString.points.push(Point._readGeoJSONPoint(value.coordinates[i]));
|
|
|
|
return lineString;
|
|
};
|
|
|
|
LineString.prototype.toWkt = function () {
|
|
if (this.points.length === 0)
|
|
return this._getWktType(Types.wkt.LineString, true);
|
|
|
|
return this._getWktType(Types.wkt.LineString, false) + this._toInnerWkt();
|
|
};
|
|
|
|
LineString.prototype._toInnerWkt = function () {
|
|
var innerWkt = '(';
|
|
|
|
for (var i = 0; i < this.points.length; i++)
|
|
innerWkt += this._getWktCoordinate(this.points[i]) + ',';
|
|
|
|
innerWkt = innerWkt.slice(0, -1);
|
|
innerWkt += ')';
|
|
|
|
return innerWkt;
|
|
};
|
|
|
|
LineString.prototype.toWkb = function (parentOptions) {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
|
|
this._writeWkbType(wkb, Types.wkb.LineString, parentOptions);
|
|
wkb.writeUInt32LE(this.points.length);
|
|
|
|
for (var i = 0; i < this.points.length; i++)
|
|
this.points[i]._writeWkbPoint(wkb);
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
LineString.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = this.points.length === 0;
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.LineString, precision, isEmpty);
|
|
|
|
if (this.points.length > 0) {
|
|
twkb.writeVarInt(this.points.length);
|
|
|
|
var previousPoint = new Point(0, 0, 0, 0);
|
|
for (var i = 0; i < this.points.length; i++)
|
|
this.points[i]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
}
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
LineString.prototype._getWkbSize = function () {
|
|
var coordinateSize = 16;
|
|
|
|
if (this.hasZ)
|
|
coordinateSize += 8;
|
|
if (this.hasM)
|
|
coordinateSize += 8;
|
|
|
|
return 1 + 4 + 4 + (this.points.length * coordinateSize);
|
|
};
|
|
|
|
LineString.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.LineString;
|
|
geoJSON.coordinates = [];
|
|
|
|
for (var i = 0; i < this.points.length; i++) {
|
|
if (this.hasZ)
|
|
geoJSON.coordinates.push([this.points[i].x, this.points[i].y, this.points[i].z]);
|
|
else
|
|
geoJSON.coordinates.push([this.points[i].x, this.points[i].y]);
|
|
}
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./point":9,"./types":11,"util":20}],6:[function(require,module,exports){
|
|
module.exports = MultiLineString;
|
|
|
|
var util = require('util');
|
|
|
|
var Types = require('./types');
|
|
var Geometry = require('./geometry');
|
|
var Point = require('./point');
|
|
var LineString = require('./linestring');
|
|
var BinaryWriter = require('./binarywriter');
|
|
|
|
function MultiLineString(lineStrings, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.lineStrings = lineStrings || [];
|
|
this.srid = srid;
|
|
|
|
if (this.lineStrings.length > 0) {
|
|
this.hasZ = this.lineStrings[0].hasZ;
|
|
this.hasM = this.lineStrings[0].hasM;
|
|
}
|
|
}
|
|
|
|
util.inherits(MultiLineString, Geometry);
|
|
|
|
MultiLineString.Z = function (lineStrings, srid) {
|
|
var multiLineString = new MultiLineString(lineStrings, srid);
|
|
multiLineString.hasZ = true;
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString.M = function (lineStrings, srid) {
|
|
var multiLineString = new MultiLineString(lineStrings, srid);
|
|
multiLineString.hasM = true;
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString.ZM = function (lineStrings, srid) {
|
|
var multiLineString = new MultiLineString(lineStrings, srid);
|
|
multiLineString.hasZ = true;
|
|
multiLineString.hasM = true;
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString._parseWkt = function (value, options) {
|
|
var multiLineString = new MultiLineString();
|
|
multiLineString.srid = options.srid;
|
|
multiLineString.hasZ = options.hasZ;
|
|
multiLineString.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return multiLineString;
|
|
|
|
value.expectGroupStart();
|
|
|
|
do {
|
|
value.expectGroupStart();
|
|
multiLineString.lineStrings.push(new LineString(value.matchCoordinates(options)));
|
|
value.expectGroupEnd();
|
|
} while (value.isMatch([',']));
|
|
|
|
value.expectGroupEnd();
|
|
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString._parseWkb = function (value, options) {
|
|
var multiLineString = new MultiLineString();
|
|
multiLineString.srid = options.srid;
|
|
multiLineString.hasZ = options.hasZ;
|
|
multiLineString.hasM = options.hasM;
|
|
|
|
var lineStringCount = value.readUInt32();
|
|
|
|
for (var i = 0; i < lineStringCount; i++)
|
|
multiLineString.lineStrings.push(Geometry.parse(value, options));
|
|
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString._parseTwkb = function (value, options) {
|
|
var multiLineString = new MultiLineString();
|
|
multiLineString.hasZ = options.hasZ;
|
|
multiLineString.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return multiLineString;
|
|
|
|
var previousPoint = new Point(0, 0, options.hasZ ? 0 : undefined, options.hasM ? 0 : undefined);
|
|
var lineStringCount = value.readVarInt();
|
|
|
|
for (var i = 0; i < lineStringCount; i++) {
|
|
var lineString = new LineString();
|
|
lineString.hasZ = options.hasZ;
|
|
lineString.hasM = options.hasM;
|
|
|
|
var pointCount = value.readVarInt();
|
|
|
|
for (var j = 0; j < pointCount; j++)
|
|
lineString.points.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
multiLineString.lineStrings.push(lineString);
|
|
}
|
|
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString._parseGeoJSON = function (value) {
|
|
var multiLineString = new MultiLineString();
|
|
|
|
if (value.coordinates.length > 0 && value.coordinates[0].length > 0)
|
|
multiLineString.hasZ = value.coordinates[0][0].length > 2;
|
|
|
|
for (var i = 0; i < value.coordinates.length; i++)
|
|
multiLineString.lineStrings.push(LineString._parseGeoJSON({ coordinates: value.coordinates[i] }));
|
|
|
|
return multiLineString;
|
|
};
|
|
|
|
MultiLineString.prototype.toWkt = function () {
|
|
if (this.lineStrings.length === 0)
|
|
return this._getWktType(Types.wkt.MultiLineString, true);
|
|
|
|
var wkt = this._getWktType(Types.wkt.MultiLineString, false) + '(';
|
|
|
|
for (var i = 0; i < this.lineStrings.length; i++)
|
|
wkt += this.lineStrings[i]._toInnerWkt() + ',';
|
|
|
|
wkt = wkt.slice(0, -1);
|
|
wkt += ')';
|
|
|
|
return wkt;
|
|
};
|
|
|
|
MultiLineString.prototype.toWkb = function () {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
|
|
this._writeWkbType(wkb, Types.wkb.MultiLineString);
|
|
wkb.writeUInt32LE(this.lineStrings.length);
|
|
|
|
for (var i = 0; i < this.lineStrings.length; i++)
|
|
wkb.writeBuffer(this.lineStrings[i].toWkb({ srid: this.srid }));
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
MultiLineString.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = this.lineStrings.length === 0;
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.MultiLineString, precision, isEmpty);
|
|
|
|
if (this.lineStrings.length > 0) {
|
|
twkb.writeVarInt(this.lineStrings.length);
|
|
|
|
var previousPoint = new Point(0, 0, 0, 0);
|
|
for (var i = 0; i < this.lineStrings.length; i++) {
|
|
twkb.writeVarInt(this.lineStrings[i].points.length);
|
|
|
|
for (var j = 0; j < this.lineStrings[i].points.length; j++)
|
|
this.lineStrings[i].points[j]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
}
|
|
}
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
MultiLineString.prototype._getWkbSize = function () {
|
|
var size = 1 + 4 + 4;
|
|
|
|
for (var i = 0; i < this.lineStrings.length; i++)
|
|
size += this.lineStrings[i]._getWkbSize();
|
|
|
|
return size;
|
|
};
|
|
|
|
MultiLineString.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.MultiLineString;
|
|
geoJSON.coordinates = [];
|
|
|
|
for (var i = 0; i < this.lineStrings.length; i++)
|
|
geoJSON.coordinates.push(this.lineStrings[i].toGeoJSON().coordinates);
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./linestring":5,"./point":9,"./types":11,"util":20}],7:[function(require,module,exports){
|
|
module.exports = MultiPoint;
|
|
|
|
var util = require('util');
|
|
|
|
var Types = require('./types');
|
|
var Geometry = require('./geometry');
|
|
var Point = require('./point');
|
|
var BinaryWriter = require('./binarywriter');
|
|
|
|
function MultiPoint(points, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.points = points || [];
|
|
this.srid = srid;
|
|
|
|
if (this.points.length > 0) {
|
|
this.hasZ = this.points[0].hasZ;
|
|
this.hasM = this.points[0].hasM;
|
|
}
|
|
}
|
|
|
|
util.inherits(MultiPoint, Geometry);
|
|
|
|
MultiPoint.Z = function (points, srid) {
|
|
var multiPoint = new MultiPoint(points, srid);
|
|
multiPoint.hasZ = true;
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint.M = function (points, srid) {
|
|
var multiPoint = new MultiPoint(points, srid);
|
|
multiPoint.hasM = true;
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint.ZM = function (points, srid) {
|
|
var multiPoint = new MultiPoint(points, srid);
|
|
multiPoint.hasZ = true;
|
|
multiPoint.hasM = true;
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint._parseWkt = function (value, options) {
|
|
var multiPoint = new MultiPoint();
|
|
multiPoint.srid = options.srid;
|
|
multiPoint.hasZ = options.hasZ;
|
|
multiPoint.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return multiPoint;
|
|
|
|
value.expectGroupStart();
|
|
multiPoint.points.push.apply(multiPoint.points, value.matchCoordinates(options));
|
|
value.expectGroupEnd();
|
|
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint._parseWkb = function (value, options) {
|
|
var multiPoint = new MultiPoint();
|
|
multiPoint.srid = options.srid;
|
|
multiPoint.hasZ = options.hasZ;
|
|
multiPoint.hasM = options.hasM;
|
|
|
|
var pointCount = value.readUInt32();
|
|
|
|
for (var i = 0; i < pointCount; i++)
|
|
multiPoint.points.push(Geometry.parse(value, options));
|
|
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint._parseTwkb = function (value, options) {
|
|
var multiPoint = new MultiPoint();
|
|
multiPoint.hasZ = options.hasZ;
|
|
multiPoint.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return multiPoint;
|
|
|
|
var previousPoint = new Point(0, 0, options.hasZ ? 0 : undefined, options.hasM ? 0 : undefined);
|
|
var pointCount = value.readVarInt();
|
|
|
|
for (var i = 0; i < pointCount; i++)
|
|
multiPoint.points.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint._parseGeoJSON = function (value) {
|
|
var multiPoint = new MultiPoint();
|
|
|
|
if (value.coordinates.length > 0)
|
|
multiPoint.hasZ = value.coordinates[0].length > 2;
|
|
|
|
for (var i = 0; i < value.coordinates.length; i++)
|
|
multiPoint.points.push(Point._parseGeoJSON({ coordinates: value.coordinates[i] }));
|
|
|
|
return multiPoint;
|
|
};
|
|
|
|
MultiPoint.prototype.toWkt = function () {
|
|
if (this.points.length === 0)
|
|
return this._getWktType(Types.wkt.MultiPoint, true);
|
|
|
|
var wkt = this._getWktType(Types.wkt.MultiPoint, false) + '(';
|
|
|
|
for (var i = 0; i < this.points.length; i++)
|
|
wkt += this._getWktCoordinate(this.points[i]) + ',';
|
|
|
|
wkt = wkt.slice(0, -1);
|
|
wkt += ')';
|
|
|
|
return wkt;
|
|
};
|
|
|
|
MultiPoint.prototype.toWkb = function () {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
|
|
this._writeWkbType(wkb, Types.wkb.MultiPoint);
|
|
wkb.writeUInt32LE(this.points.length);
|
|
|
|
for (var i = 0; i < this.points.length; i++)
|
|
wkb.writeBuffer(this.points[i].toWkb({ srid: this.srid }));
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
MultiPoint.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = this.points.length === 0;
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.MultiPoint, precision, isEmpty);
|
|
|
|
if (this.points.length > 0) {
|
|
twkb.writeVarInt(this.points.length);
|
|
|
|
var previousPoint = new Point(0, 0, 0, 0);
|
|
for (var i = 0; i < this.points.length; i++)
|
|
this.points[i]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
}
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
MultiPoint.prototype._getWkbSize = function () {
|
|
var coordinateSize = 16;
|
|
|
|
if (this.hasZ)
|
|
coordinateSize += 8;
|
|
if (this.hasM)
|
|
coordinateSize += 8;
|
|
|
|
coordinateSize += 5;
|
|
|
|
return 1 + 4 + 4 + (this.points.length * coordinateSize);
|
|
};
|
|
|
|
MultiPoint.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.MultiPoint;
|
|
geoJSON.coordinates = [];
|
|
|
|
for (var i = 0; i < this.points.length; i++)
|
|
geoJSON.coordinates.push(this.points[i].toGeoJSON().coordinates);
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./point":9,"./types":11,"util":20}],8:[function(require,module,exports){
|
|
module.exports = MultiPolygon;
|
|
|
|
var util = require('util');
|
|
|
|
var Types = require('./types');
|
|
var Geometry = require('./geometry');
|
|
var Point = require('./point');
|
|
var Polygon = require('./polygon');
|
|
var BinaryWriter = require('./binarywriter');
|
|
|
|
function MultiPolygon(polygons, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.polygons = polygons || [];
|
|
this.srid = srid;
|
|
|
|
if (this.polygons.length > 0) {
|
|
this.hasZ = this.polygons[0].hasZ;
|
|
this.hasM = this.polygons[0].hasM;
|
|
}
|
|
}
|
|
|
|
util.inherits(MultiPolygon, Geometry);
|
|
|
|
MultiPolygon.Z = function (polygons, srid) {
|
|
var multiPolygon = new MultiPolygon(polygons, srid);
|
|
multiPolygon.hasZ = true;
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon.M = function (polygons, srid) {
|
|
var multiPolygon = new MultiPolygon(polygons, srid);
|
|
multiPolygon.hasM = true;
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon.ZM = function (polygons, srid) {
|
|
var multiPolygon = new MultiPolygon(polygons, srid);
|
|
multiPolygon.hasZ = true;
|
|
multiPolygon.hasM = true;
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon._parseWkt = function (value, options) {
|
|
var multiPolygon = new MultiPolygon();
|
|
multiPolygon.srid = options.srid;
|
|
multiPolygon.hasZ = options.hasZ;
|
|
multiPolygon.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return multiPolygon;
|
|
|
|
value.expectGroupStart();
|
|
|
|
do {
|
|
value.expectGroupStart();
|
|
|
|
var exteriorRing = [];
|
|
var interiorRings = [];
|
|
|
|
value.expectGroupStart();
|
|
exteriorRing.push.apply(exteriorRing, value.matchCoordinates(options));
|
|
value.expectGroupEnd();
|
|
|
|
while (value.isMatch([','])) {
|
|
value.expectGroupStart();
|
|
interiorRings.push(value.matchCoordinates(options));
|
|
value.expectGroupEnd();
|
|
}
|
|
|
|
multiPolygon.polygons.push(new Polygon(exteriorRing, interiorRings));
|
|
|
|
value.expectGroupEnd();
|
|
|
|
} while (value.isMatch([',']));
|
|
|
|
value.expectGroupEnd();
|
|
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon._parseWkb = function (value, options) {
|
|
var multiPolygon = new MultiPolygon();
|
|
multiPolygon.srid = options.srid;
|
|
multiPolygon.hasZ = options.hasZ;
|
|
multiPolygon.hasM = options.hasM;
|
|
|
|
var polygonCount = value.readUInt32();
|
|
|
|
for (var i = 0; i < polygonCount; i++)
|
|
multiPolygon.polygons.push(Geometry.parse(value, options));
|
|
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon._parseTwkb = function (value, options) {
|
|
var multiPolygon = new MultiPolygon();
|
|
multiPolygon.hasZ = options.hasZ;
|
|
multiPolygon.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return multiPolygon;
|
|
|
|
var previousPoint = new Point(0, 0, options.hasZ ? 0 : undefined, options.hasM ? 0 : undefined);
|
|
var polygonCount = value.readVarInt();
|
|
|
|
for (var i = 0; i < polygonCount; i++) {
|
|
var polygon = new Polygon();
|
|
polygon.hasZ = options.hasZ;
|
|
polygon.hasM = options.hasM;
|
|
|
|
var ringCount = value.readVarInt();
|
|
var exteriorRingCount = value.readVarInt();
|
|
|
|
for (var j = 0; j < exteriorRingCount; j++)
|
|
polygon.exteriorRing.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
for (j = 1; j < ringCount; j++) {
|
|
var interiorRing = [];
|
|
|
|
var interiorRingCount = value.readVarInt();
|
|
|
|
for (var k = 0; k < interiorRingCount; k++)
|
|
interiorRing.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
polygon.interiorRings.push(interiorRing);
|
|
}
|
|
|
|
multiPolygon.polygons.push(polygon);
|
|
}
|
|
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon._parseGeoJSON = function (value) {
|
|
var multiPolygon = new MultiPolygon();
|
|
|
|
if (value.coordinates.length > 0 && value.coordinates[0].length > 0 && value.coordinates[0][0].length > 0)
|
|
multiPolygon.hasZ = value.coordinates[0][0][0].length > 2;
|
|
|
|
for (var i = 0; i < value.coordinates.length; i++)
|
|
multiPolygon.polygons.push(Polygon._parseGeoJSON({ coordinates: value.coordinates[i] }));
|
|
|
|
return multiPolygon;
|
|
};
|
|
|
|
MultiPolygon.prototype.toWkt = function () {
|
|
if (this.polygons.length === 0)
|
|
return this._getWktType(Types.wkt.MultiPolygon, true);
|
|
|
|
var wkt = this._getWktType(Types.wkt.MultiPolygon, false) + '(';
|
|
|
|
for (var i = 0; i < this.polygons.length; i++)
|
|
wkt += this.polygons[i]._toInnerWkt() + ',';
|
|
|
|
wkt = wkt.slice(0, -1);
|
|
wkt += ')';
|
|
|
|
return wkt;
|
|
};
|
|
|
|
MultiPolygon.prototype.toWkb = function () {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
|
|
this._writeWkbType(wkb, Types.wkb.MultiPolygon);
|
|
wkb.writeUInt32LE(this.polygons.length);
|
|
|
|
for (var i = 0; i < this.polygons.length; i++)
|
|
wkb.writeBuffer(this.polygons[i].toWkb({ srid: this.srid }));
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
MultiPolygon.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = this.polygons.length === 0;
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.MultiPolygon, precision, isEmpty);
|
|
|
|
if (this.polygons.length > 0) {
|
|
twkb.writeVarInt(this.polygons.length);
|
|
|
|
var previousPoint = new Point(0, 0, 0, 0);
|
|
for (var i = 0; i < this.polygons.length; i++) {
|
|
twkb.writeVarInt(1 + this.polygons[i].interiorRings.length);
|
|
|
|
twkb.writeVarInt(this.polygons[i].exteriorRing.length);
|
|
|
|
for (var j = 0; j < this.polygons[i].exteriorRing.length; j++)
|
|
this.polygons[i].exteriorRing[j]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
|
|
for (j = 0; j < this.polygons[i].interiorRings.length; j++) {
|
|
twkb.writeVarInt(this.polygons[i].interiorRings[j].length);
|
|
|
|
for (var k = 0; k < this.polygons[i].interiorRings[j].length; k++)
|
|
this.polygons[i].interiorRings[j][k]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
}
|
|
}
|
|
}
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
MultiPolygon.prototype._getWkbSize = function () {
|
|
var size = 1 + 4 + 4;
|
|
|
|
for (var i = 0; i < this.polygons.length; i++)
|
|
size += this.polygons[i]._getWkbSize();
|
|
|
|
return size;
|
|
};
|
|
|
|
MultiPolygon.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.MultiPolygon;
|
|
geoJSON.coordinates = [];
|
|
|
|
for (var i = 0; i < this.polygons.length; i++)
|
|
geoJSON.coordinates.push(this.polygons[i].toGeoJSON().coordinates);
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./point":9,"./polygon":10,"./types":11,"util":20}],9:[function(require,module,exports){
|
|
module.exports = Point;
|
|
|
|
var util = require('util');
|
|
|
|
var Geometry = require('./geometry');
|
|
var Types = require('./types');
|
|
var BinaryWriter = require('./binarywriter');
|
|
var ZigZag = require('./zigzag.js');
|
|
|
|
function Point(x, y, z, m, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.x = x;
|
|
this.y = y;
|
|
this.z = z;
|
|
this.m = m;
|
|
this.srid = srid;
|
|
|
|
this.hasZ = typeof this.z !== 'undefined';
|
|
this.hasM = typeof this.m !== 'undefined';
|
|
}
|
|
|
|
util.inherits(Point, Geometry);
|
|
|
|
Point.Z = function (x, y, z, srid) {
|
|
var point = new Point(x, y, z, undefined, srid);
|
|
point.hasZ = true;
|
|
return point;
|
|
};
|
|
|
|
Point.M = function (x, y, m, srid) {
|
|
var point = new Point(x, y, undefined, m, srid);
|
|
point.hasM = true;
|
|
return point;
|
|
};
|
|
|
|
Point.ZM = function (x, y, z, m, srid) {
|
|
var point = new Point(x, y, z, m, srid);
|
|
point.hasZ = true;
|
|
point.hasM = true;
|
|
return point;
|
|
};
|
|
|
|
Point._parseWkt = function (value, options) {
|
|
var point = new Point();
|
|
point.srid = options.srid;
|
|
point.hasZ = options.hasZ;
|
|
point.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return point;
|
|
|
|
value.expectGroupStart();
|
|
|
|
var coordinate = value.matchCoordinate(options);
|
|
|
|
point.x = coordinate.x;
|
|
point.y = coordinate.y;
|
|
point.z = coordinate.z;
|
|
point.m = coordinate.m;
|
|
|
|
value.expectGroupEnd();
|
|
|
|
return point;
|
|
};
|
|
|
|
Point._parseWkb = function (value, options) {
|
|
var point = Point._readWkbPoint(value, options);
|
|
point.srid = options.srid;
|
|
return point;
|
|
};
|
|
|
|
Point._readWkbPoint = function (value, options) {
|
|
return new Point(value.readDouble(), value.readDouble(),
|
|
options.hasZ ? value.readDouble() : undefined,
|
|
options.hasM ? value.readDouble() : undefined);
|
|
};
|
|
|
|
Point._parseTwkb = function (value, options) {
|
|
var point = new Point();
|
|
point.hasZ = options.hasZ;
|
|
point.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return point;
|
|
|
|
point.x = ZigZag.decode(value.readVarInt()) / options.precisionFactor;
|
|
point.y = ZigZag.decode(value.readVarInt()) / options.precisionFactor;
|
|
point.z = options.hasZ ? ZigZag.decode(value.readVarInt()) / options.zPrecisionFactor : undefined;
|
|
point.m = options.hasM ? ZigZag.decode(value.readVarInt()) / options.mPrecisionFactor : undefined;
|
|
|
|
return point;
|
|
};
|
|
|
|
Point._readTwkbPoint = function (value, options, previousPoint) {
|
|
previousPoint.x += ZigZag.decode(value.readVarInt()) / options.precisionFactor;
|
|
previousPoint.y += ZigZag.decode(value.readVarInt()) / options.precisionFactor;
|
|
|
|
if (options.hasZ)
|
|
previousPoint.z += ZigZag.decode(value.readVarInt()) / options.zPrecisionFactor;
|
|
if (options.hasM)
|
|
previousPoint.m += ZigZag.decode(value.readVarInt()) / options.mPrecisionFactor;
|
|
|
|
return new Point(previousPoint.x, previousPoint.y, previousPoint.z, previousPoint.m);
|
|
};
|
|
|
|
Point._parseGeoJSON = function (value) {
|
|
return Point._readGeoJSONPoint(value.coordinates);
|
|
};
|
|
|
|
Point._readGeoJSONPoint = function (coordinates) {
|
|
if (coordinates.length === 0)
|
|
return new Point();
|
|
|
|
if (coordinates.length > 2)
|
|
return new Point(coordinates[0], coordinates[1], coordinates[2]);
|
|
|
|
return new Point(coordinates[0], coordinates[1]);
|
|
};
|
|
|
|
Point.prototype.toWkt = function () {
|
|
if (typeof this.x === 'undefined' && typeof this.y === 'undefined' &&
|
|
typeof this.z === 'undefined' && typeof this.m === 'undefined')
|
|
return this._getWktType(Types.wkt.Point, true);
|
|
|
|
return this._getWktType(Types.wkt.Point, false) + '(' + this._getWktCoordinate(this) + ')';
|
|
};
|
|
|
|
Point.prototype.toWkb = function (parentOptions) {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
this._writeWkbType(wkb, Types.wkb.Point, parentOptions);
|
|
|
|
if (typeof this.x === 'undefined' && typeof this.y === 'undefined') {
|
|
wkb.writeDoubleLE(NaN);
|
|
wkb.writeDoubleLE(NaN);
|
|
|
|
if (this.hasZ)
|
|
wkb.writeDoubleLE(NaN);
|
|
if (this.hasM)
|
|
wkb.writeDoubleLE(NaN);
|
|
}
|
|
else {
|
|
this._writeWkbPoint(wkb);
|
|
}
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
Point.prototype._writeWkbPoint = function (wkb) {
|
|
wkb.writeDoubleLE(this.x);
|
|
wkb.writeDoubleLE(this.y);
|
|
|
|
if (this.hasZ)
|
|
wkb.writeDoubleLE(this.z);
|
|
if (this.hasM)
|
|
wkb.writeDoubleLE(this.m);
|
|
};
|
|
|
|
Point.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = typeof this.x === 'undefined' && typeof this.y === 'undefined';
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.Point, precision, isEmpty);
|
|
|
|
if (!isEmpty)
|
|
this._writeTwkbPoint(twkb, precision, new Point(0, 0, 0, 0));
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
Point.prototype._writeTwkbPoint = function (twkb, precision, previousPoint) {
|
|
var x = this.x * precision.xyFactor;
|
|
var y = this.y * precision.xyFactor;
|
|
var z = this.z * precision.zFactor;
|
|
var m = this.m * precision.mFactor;
|
|
|
|
twkb.writeVarInt(ZigZag.encode(x - previousPoint.x));
|
|
twkb.writeVarInt(ZigZag.encode(y - previousPoint.y));
|
|
if (this.hasZ)
|
|
twkb.writeVarInt(ZigZag.encode(z - previousPoint.z));
|
|
if (this.hasM)
|
|
twkb.writeVarInt(ZigZag.encode(m - previousPoint.m));
|
|
|
|
previousPoint.x = x;
|
|
previousPoint.y = y;
|
|
previousPoint.z = z;
|
|
previousPoint.m = m;
|
|
};
|
|
|
|
Point.prototype._getWkbSize = function () {
|
|
var size = 1 + 4 + 8 + 8;
|
|
|
|
if (this.hasZ)
|
|
size += 8;
|
|
if (this.hasM)
|
|
size += 8;
|
|
|
|
return size;
|
|
};
|
|
|
|
Point.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.Point;
|
|
|
|
if (typeof this.x === 'undefined' && typeof this.y === 'undefined')
|
|
geoJSON.coordinates = [];
|
|
else if (typeof this.z !== 'undefined')
|
|
geoJSON.coordinates = [this.x, this.y, this.z];
|
|
else
|
|
geoJSON.coordinates = [this.x, this.y];
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./types":11,"./zigzag.js":13,"util":20}],10:[function(require,module,exports){
|
|
module.exports = Polygon;
|
|
|
|
var util = require('util');
|
|
|
|
var Geometry = require('./geometry');
|
|
var Types = require('./types');
|
|
var Point = require('./point');
|
|
var BinaryWriter = require('./binarywriter');
|
|
|
|
function Polygon(exteriorRing, interiorRings, srid) {
|
|
Geometry.call(this);
|
|
|
|
this.exteriorRing = exteriorRing || [];
|
|
this.interiorRings = interiorRings || [];
|
|
this.srid = srid;
|
|
|
|
if (this.exteriorRing.length > 0) {
|
|
this.hasZ = this.exteriorRing[0].hasZ;
|
|
this.hasM = this.exteriorRing[0].hasM;
|
|
}
|
|
}
|
|
|
|
util.inherits(Polygon, Geometry);
|
|
|
|
Polygon.Z = function (exteriorRing, interiorRings, srid) {
|
|
var polygon = new Polygon(exteriorRing, interiorRings, srid);
|
|
polygon.hasZ = true;
|
|
return polygon;
|
|
};
|
|
|
|
Polygon.M = function (exteriorRing, interiorRings, srid) {
|
|
var polygon = new Polygon(exteriorRing, interiorRings, srid);
|
|
polygon.hasM = true;
|
|
return polygon;
|
|
};
|
|
|
|
Polygon.ZM = function (exteriorRing, interiorRings, srid) {
|
|
var polygon = new Polygon(exteriorRing, interiorRings, srid);
|
|
polygon.hasZ = true;
|
|
polygon.hasM = true;
|
|
return polygon;
|
|
};
|
|
|
|
Polygon._parseWkt = function (value, options) {
|
|
var polygon = new Polygon();
|
|
polygon.srid = options.srid;
|
|
polygon.hasZ = options.hasZ;
|
|
polygon.hasM = options.hasM;
|
|
|
|
if (value.isMatch(['EMPTY']))
|
|
return polygon;
|
|
|
|
value.expectGroupStart();
|
|
|
|
value.expectGroupStart();
|
|
polygon.exteriorRing.push.apply(polygon.exteriorRing, value.matchCoordinates(options));
|
|
value.expectGroupEnd();
|
|
|
|
while (value.isMatch([','])) {
|
|
value.expectGroupStart();
|
|
polygon.interiorRings.push(value.matchCoordinates(options));
|
|
value.expectGroupEnd();
|
|
}
|
|
|
|
value.expectGroupEnd();
|
|
|
|
return polygon;
|
|
};
|
|
|
|
Polygon._parseWkb = function (value, options) {
|
|
var polygon = new Polygon();
|
|
polygon.srid = options.srid;
|
|
polygon.hasZ = options.hasZ;
|
|
polygon.hasM = options.hasM;
|
|
|
|
var ringCount = value.readUInt32();
|
|
|
|
if (ringCount > 0) {
|
|
var exteriorRingCount = value.readUInt32();
|
|
|
|
for (var i = 0; i < exteriorRingCount; i++)
|
|
polygon.exteriorRing.push(Point._readWkbPoint(value, options));
|
|
|
|
for (i = 1; i < ringCount; i++) {
|
|
var interiorRing = [];
|
|
|
|
var interiorRingCount = value.readUInt32();
|
|
|
|
for (var j = 0; j < interiorRingCount; j++)
|
|
interiorRing.push(Point._readWkbPoint(value, options));
|
|
|
|
polygon.interiorRings.push(interiorRing);
|
|
}
|
|
}
|
|
|
|
return polygon;
|
|
};
|
|
|
|
Polygon._parseTwkb = function (value, options) {
|
|
var polygon = new Polygon();
|
|
polygon.hasZ = options.hasZ;
|
|
polygon.hasM = options.hasM;
|
|
|
|
if (options.isEmpty)
|
|
return polygon;
|
|
|
|
var previousPoint = new Point(0, 0, options.hasZ ? 0 : undefined, options.hasM ? 0 : undefined);
|
|
var ringCount = value.readVarInt();
|
|
var exteriorRingCount = value.readVarInt();
|
|
|
|
for (var i = 0; i < exteriorRingCount; i++)
|
|
polygon.exteriorRing.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
for (i = 1; i < ringCount; i++) {
|
|
var interiorRing = [];
|
|
|
|
var interiorRingCount = value.readVarInt();
|
|
|
|
for (var j = 0; j < interiorRingCount; j++)
|
|
interiorRing.push(Point._readTwkbPoint(value, options, previousPoint));
|
|
|
|
polygon.interiorRings.push(interiorRing);
|
|
}
|
|
|
|
return polygon;
|
|
};
|
|
|
|
Polygon._parseGeoJSON = function (value) {
|
|
var polygon = new Polygon();
|
|
|
|
if (value.coordinates.length > 0 && value.coordinates[0].length > 0)
|
|
polygon.hasZ = value.coordinates[0][0].length > 2;
|
|
|
|
for (var i = 0; i < value.coordinates.length; i++) {
|
|
if (i > 0)
|
|
polygon.interiorRings.push([]);
|
|
|
|
for (var j = 0; j < value.coordinates[i].length; j++) {
|
|
if (i === 0)
|
|
polygon.exteriorRing.push(Point._readGeoJSONPoint(value.coordinates[i][j]));
|
|
else
|
|
polygon.interiorRings[i - 1].push(Point._readGeoJSONPoint(value.coordinates[i][j]));
|
|
}
|
|
}
|
|
|
|
return polygon;
|
|
};
|
|
|
|
Polygon.prototype.toWkt = function () {
|
|
if (this.exteriorRing.length === 0)
|
|
return this._getWktType(Types.wkt.Polygon, true);
|
|
|
|
return this._getWktType(Types.wkt.Polygon, false) + this._toInnerWkt();
|
|
};
|
|
|
|
Polygon.prototype._toInnerWkt = function () {
|
|
var innerWkt = '((';
|
|
|
|
for (var i = 0; i < this.exteriorRing.length; i++)
|
|
innerWkt += this._getWktCoordinate(this.exteriorRing[i]) + ',';
|
|
|
|
innerWkt = innerWkt.slice(0, -1);
|
|
innerWkt += ')';
|
|
|
|
for (i = 0; i < this.interiorRings.length; i++) {
|
|
innerWkt += ',(';
|
|
|
|
for (var j = 0; j < this.interiorRings[i].length; j++) {
|
|
innerWkt += this._getWktCoordinate(this.interiorRings[i][j]) + ',';
|
|
}
|
|
|
|
innerWkt = innerWkt.slice(0, -1);
|
|
innerWkt += ')';
|
|
}
|
|
|
|
innerWkt += ')';
|
|
|
|
return innerWkt;
|
|
};
|
|
|
|
Polygon.prototype.toWkb = function (parentOptions) {
|
|
var wkb = new BinaryWriter(this._getWkbSize());
|
|
|
|
wkb.writeInt8(1);
|
|
|
|
this._writeWkbType(wkb, Types.wkb.Polygon, parentOptions);
|
|
|
|
if (this.exteriorRing.length > 0) {
|
|
wkb.writeUInt32LE(1 + this.interiorRings.length);
|
|
wkb.writeUInt32LE(this.exteriorRing.length);
|
|
}
|
|
else {
|
|
wkb.writeUInt32LE(0);
|
|
}
|
|
|
|
for (var i = 0; i < this.exteriorRing.length; i++)
|
|
this.exteriorRing[i]._writeWkbPoint(wkb);
|
|
|
|
for (i = 0; i < this.interiorRings.length; i++) {
|
|
wkb.writeUInt32LE(this.interiorRings[i].length);
|
|
|
|
for (var j = 0; j < this.interiorRings[i].length; j++)
|
|
this.interiorRings[i][j]._writeWkbPoint(wkb);
|
|
}
|
|
|
|
return wkb.buffer;
|
|
};
|
|
|
|
Polygon.prototype.toTwkb = function () {
|
|
var twkb = new BinaryWriter(0, true);
|
|
|
|
var precision = Geometry.getTwkbPrecision(5, 0, 0);
|
|
var isEmpty = this.exteriorRing.length === 0;
|
|
|
|
this._writeTwkbHeader(twkb, Types.wkb.Polygon, precision, isEmpty);
|
|
|
|
if (this.exteriorRing.length > 0) {
|
|
twkb.writeVarInt(1 + this.interiorRings.length);
|
|
|
|
twkb.writeVarInt(this.exteriorRing.length);
|
|
|
|
var previousPoint = new Point(0, 0, 0, 0);
|
|
for (var i = 0; i < this.exteriorRing.length; i++)
|
|
this.exteriorRing[i]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
|
|
for (i = 0; i < this.interiorRings.length; i++) {
|
|
twkb.writeVarInt(this.interiorRings[i].length);
|
|
|
|
for (var j = 0; j < this.interiorRings[i].length; j++)
|
|
this.interiorRings[i][j]._writeTwkbPoint(twkb, precision, previousPoint);
|
|
}
|
|
}
|
|
|
|
return twkb.buffer;
|
|
};
|
|
|
|
Polygon.prototype._getWkbSize = function () {
|
|
var coordinateSize = 16;
|
|
|
|
if (this.hasZ)
|
|
coordinateSize += 8;
|
|
if (this.hasM)
|
|
coordinateSize += 8;
|
|
|
|
var size = 1 + 4 + 4;
|
|
|
|
if (this.exteriorRing.length > 0)
|
|
size += 4 + (this.exteriorRing.length * coordinateSize);
|
|
|
|
for (var i = 0; i < this.interiorRings.length; i++)
|
|
size += 4 + (this.interiorRings[i].length * coordinateSize);
|
|
|
|
return size;
|
|
};
|
|
|
|
Polygon.prototype.toGeoJSON = function (options) {
|
|
var geoJSON = Geometry.prototype.toGeoJSON.call(this, options);
|
|
geoJSON.type = Types.geoJSON.Polygon;
|
|
geoJSON.coordinates = [];
|
|
|
|
if (this.exteriorRing.length > 0) {
|
|
var exteriorRing = [];
|
|
|
|
for (var i = 0; i < this.exteriorRing.length; i++) {
|
|
if (this.hasZ)
|
|
exteriorRing.push([this.exteriorRing[i].x, this.exteriorRing[i].y, this.exteriorRing[i].z]);
|
|
else
|
|
exteriorRing.push([this.exteriorRing[i].x, this.exteriorRing[i].y]);
|
|
}
|
|
|
|
geoJSON.coordinates.push(exteriorRing);
|
|
}
|
|
|
|
for (var j = 0; j < this.interiorRings.length; j++) {
|
|
var interiorRing = [];
|
|
|
|
for (var k = 0; k < this.interiorRings[j].length; k++) {
|
|
if (this.hasZ)
|
|
interiorRing.push([this.interiorRings[j][k].x, this.interiorRings[j][k].y, this.interiorRings[j][k].z]);
|
|
else
|
|
interiorRing.push([this.interiorRings[j][k].x, this.interiorRings[j][k].y]);
|
|
}
|
|
|
|
geoJSON.coordinates.push(interiorRing);
|
|
}
|
|
|
|
return geoJSON;
|
|
};
|
|
|
|
},{"./binarywriter":2,"./geometry":3,"./point":9,"./types":11,"util":20}],11:[function(require,module,exports){
|
|
module.exports = {
|
|
wkt: {
|
|
Point: 'POINT',
|
|
LineString: 'LINESTRING',
|
|
Polygon: 'POLYGON',
|
|
MultiPoint: 'MULTIPOINT',
|
|
MultiLineString: 'MULTILINESTRING',
|
|
MultiPolygon: 'MULTIPOLYGON',
|
|
GeometryCollection: 'GEOMETRYCOLLECTION'
|
|
},
|
|
wkb: {
|
|
Point: 1,
|
|
LineString: 2,
|
|
Polygon: 3,
|
|
MultiPoint: 4,
|
|
MultiLineString: 5,
|
|
MultiPolygon: 6,
|
|
GeometryCollection: 7
|
|
},
|
|
geoJSON: {
|
|
Point: 'Point',
|
|
LineString: 'LineString',
|
|
Polygon: 'Polygon',
|
|
MultiPoint: 'MultiPoint',
|
|
MultiLineString: 'MultiLineString',
|
|
MultiPolygon: 'MultiPolygon',
|
|
GeometryCollection: 'GeometryCollection'
|
|
}
|
|
};
|
|
|
|
},{}],12:[function(require,module,exports){
|
|
module.exports = WktParser;
|
|
|
|
var Types = require('./types');
|
|
var Point = require('./point');
|
|
|
|
function WktParser(value) {
|
|
this.value = value;
|
|
this.position = 0;
|
|
}
|
|
|
|
WktParser.prototype.match = function (tokens) {
|
|
this.skipWhitespaces();
|
|
|
|
for (var i = 0; i < tokens.length; i++) {
|
|
if (this.value.substring(this.position).indexOf(tokens[i]) === 0) {
|
|
this.position += tokens[i].length;
|
|
return tokens[i];
|
|
}
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
WktParser.prototype.matchRegex = function (tokens) {
|
|
this.skipWhitespaces();
|
|
|
|
for (var i = 0; i < tokens.length; i++) {
|
|
var match = this.value.substring(this.position).match(tokens[i]);
|
|
|
|
if (match) {
|
|
this.position += match[0].length;
|
|
return match;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
WktParser.prototype.isMatch = function (tokens) {
|
|
this.skipWhitespaces();
|
|
|
|
for (var i = 0; i < tokens.length; i++) {
|
|
if (this.value.substring(this.position).indexOf(tokens[i]) === 0) {
|
|
this.position += tokens[i].length;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
WktParser.prototype.matchType = function () {
|
|
var geometryType = this.match([Types.wkt.Point, Types.wkt.LineString, Types.wkt.Polygon, Types.wkt.MultiPoint,
|
|
Types.wkt.MultiLineString, Types.wkt.MultiPolygon, Types.wkt.GeometryCollection]);
|
|
|
|
if (!geometryType)
|
|
throw new Error('Expected geometry type');
|
|
|
|
return geometryType;
|
|
};
|
|
|
|
WktParser.prototype.matchDimension = function () {
|
|
var dimension = this.match(['ZM', 'Z', 'M']);
|
|
|
|
switch (dimension) {
|
|
case 'ZM': return { hasZ: true, hasM: true };
|
|
case 'Z': return { hasZ: true, hasM: false };
|
|
case 'M': return { hasZ: false, hasM: true };
|
|
default: return { hasZ: false, hasM: false };
|
|
}
|
|
};
|
|
|
|
WktParser.prototype.expectGroupStart = function () {
|
|
if (!this.isMatch(['(']))
|
|
throw new Error('Expected group start');
|
|
};
|
|
|
|
WktParser.prototype.expectGroupEnd = function () {
|
|
if (!this.isMatch([')']))
|
|
throw new Error('Expected group end');
|
|
};
|
|
|
|
WktParser.prototype.matchCoordinate = function (options) {
|
|
var match;
|
|
|
|
if (options.hasZ && options.hasM)
|
|
match = this.matchRegex([/^(\S*)\s+(\S*)\s+(\S*)\s+([^\s,)]*)/]);
|
|
else if (options.hasZ || options.hasM)
|
|
match = this.matchRegex([/^(\S*)\s+(\S*)\s+([^\s,)]*)/]);
|
|
else
|
|
match = this.matchRegex([/^(\S*)\s+([^\s,)]*)/]);
|
|
|
|
if (!match)
|
|
throw new Error('Expected coordinates');
|
|
|
|
if (options.hasZ && options.hasM)
|
|
return new Point(parseFloat(match[1]), parseFloat(match[2]), parseFloat(match[3]), parseFloat(match[4]));
|
|
else if (options.hasZ)
|
|
return new Point(parseFloat(match[1]), parseFloat(match[2]), parseFloat(match[3]));
|
|
else if (options.hasM)
|
|
return new Point(parseFloat(match[1]), parseFloat(match[2]), undefined, parseFloat(match[3]));
|
|
else
|
|
return new Point(parseFloat(match[1]), parseFloat(match[2]));
|
|
};
|
|
|
|
WktParser.prototype.matchCoordinates = function (options) {
|
|
var coordinates = [];
|
|
|
|
do {
|
|
var startsWithBracket = this.isMatch(['(']);
|
|
|
|
coordinates.push(this.matchCoordinate(options));
|
|
|
|
if (startsWithBracket)
|
|
this.expectGroupEnd();
|
|
} while (this.isMatch([',']));
|
|
|
|
return coordinates;
|
|
};
|
|
|
|
WktParser.prototype.skipWhitespaces = function () {
|
|
while (this.position < this.value.length && this.value[this.position] === ' ')
|
|
this.position++;
|
|
};
|
|
|
|
},{"./point":9,"./types":11}],13:[function(require,module,exports){
|
|
module.exports = {
|
|
encode: function (value) {
|
|
return (value << 1) ^ (value >> 31);
|
|
},
|
|
decode: function (value) {
|
|
return (value >> 1) ^ (-(value & 1));
|
|
}
|
|
};
|
|
|
|
},{}],14:[function(require,module,exports){
|
|
'use strict'
|
|
|
|
exports.byteLength = byteLength
|
|
exports.toByteArray = toByteArray
|
|
exports.fromByteArray = fromByteArray
|
|
|
|
var lookup = []
|
|
var revLookup = []
|
|
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
|
|
|
|
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
|
|
for (var i = 0, len = code.length; i < len; ++i) {
|
|
lookup[i] = code[i]
|
|
revLookup[code.charCodeAt(i)] = i
|
|
}
|
|
|
|
// Support decoding URL-safe base64 strings, as Node.js does.
|
|
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
|
|
revLookup['-'.charCodeAt(0)] = 62
|
|
revLookup['_'.charCodeAt(0)] = 63
|
|
|
|
function getLens (b64) {
|
|
var len = b64.length
|
|
|
|
if (len % 4 > 0) {
|
|
throw new Error('Invalid string. Length must be a multiple of 4')
|
|
}
|
|
|
|
// Trim off extra bytes after placeholder bytes are found
|
|
// See: https://github.com/beatgammit/base64-js/issues/42
|
|
var validLen = b64.indexOf('=')
|
|
if (validLen === -1) validLen = len
|
|
|
|
var placeHoldersLen = validLen === len
|
|
? 0
|
|
: 4 - (validLen % 4)
|
|
|
|
return [validLen, placeHoldersLen]
|
|
}
|
|
|
|
// base64 is 4/3 + up to two characters of the original data
|
|
function byteLength (b64) {
|
|
var lens = getLens(b64)
|
|
var validLen = lens[0]
|
|
var placeHoldersLen = lens[1]
|
|
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
|
|
}
|
|
|
|
function _byteLength (b64, validLen, placeHoldersLen) {
|
|
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
|
|
}
|
|
|
|
function toByteArray (b64) {
|
|
var tmp
|
|
var lens = getLens(b64)
|
|
var validLen = lens[0]
|
|
var placeHoldersLen = lens[1]
|
|
|
|
var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
|
|
|
|
var curByte = 0
|
|
|
|
// if there are placeholders, only get up to the last complete 4 chars
|
|
var len = placeHoldersLen > 0
|
|
? validLen - 4
|
|
: validLen
|
|
|
|
var i
|
|
for (i = 0; i < len; i += 4) {
|
|
tmp =
|
|
(revLookup[b64.charCodeAt(i)] << 18) |
|
|
(revLookup[b64.charCodeAt(i + 1)] << 12) |
|
|
(revLookup[b64.charCodeAt(i + 2)] << 6) |
|
|
revLookup[b64.charCodeAt(i + 3)]
|
|
arr[curByte++] = (tmp >> 16) & 0xFF
|
|
arr[curByte++] = (tmp >> 8) & 0xFF
|
|
arr[curByte++] = tmp & 0xFF
|
|
}
|
|
|
|
if (placeHoldersLen === 2) {
|
|
tmp =
|
|
(revLookup[b64.charCodeAt(i)] << 2) |
|
|
(revLookup[b64.charCodeAt(i + 1)] >> 4)
|
|
arr[curByte++] = tmp & 0xFF
|
|
}
|
|
|
|
if (placeHoldersLen === 1) {
|
|
tmp =
|
|
(revLookup[b64.charCodeAt(i)] << 10) |
|
|
(revLookup[b64.charCodeAt(i + 1)] << 4) |
|
|
(revLookup[b64.charCodeAt(i + 2)] >> 2)
|
|
arr[curByte++] = (tmp >> 8) & 0xFF
|
|
arr[curByte++] = tmp & 0xFF
|
|
}
|
|
|
|
return arr
|
|
}
|
|
|
|
function tripletToBase64 (num) {
|
|
return lookup[num >> 18 & 0x3F] +
|
|
lookup[num >> 12 & 0x3F] +
|
|
lookup[num >> 6 & 0x3F] +
|
|
lookup[num & 0x3F]
|
|
}
|
|
|
|
function encodeChunk (uint8, start, end) {
|
|
var tmp
|
|
var output = []
|
|
for (var i = start; i < end; i += 3) {
|
|
tmp =
|
|
((uint8[i] << 16) & 0xFF0000) +
|
|
((uint8[i + 1] << 8) & 0xFF00) +
|
|
(uint8[i + 2] & 0xFF)
|
|
output.push(tripletToBase64(tmp))
|
|
}
|
|
return output.join('')
|
|
}
|
|
|
|
function fromByteArray (uint8) {
|
|
var tmp
|
|
var len = uint8.length
|
|
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
|
|
var parts = []
|
|
var maxChunkLength = 16383 // must be multiple of 3
|
|
|
|
// go through the array every three bytes, we'll deal with trailing stuff later
|
|
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
|
|
parts.push(encodeChunk(
|
|
uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
|
|
))
|
|
}
|
|
|
|
// pad the end with zeros, but make sure to not forget the extra bytes
|
|
if (extraBytes === 1) {
|
|
tmp = uint8[len - 1]
|
|
parts.push(
|
|
lookup[tmp >> 2] +
|
|
lookup[(tmp << 4) & 0x3F] +
|
|
'=='
|
|
)
|
|
} else if (extraBytes === 2) {
|
|
tmp = (uint8[len - 2] << 8) + uint8[len - 1]
|
|
parts.push(
|
|
lookup[tmp >> 10] +
|
|
lookup[(tmp >> 4) & 0x3F] +
|
|
lookup[(tmp << 2) & 0x3F] +
|
|
'='
|
|
)
|
|
}
|
|
|
|
return parts.join('')
|
|
}
|
|
|
|
},{}],15:[function(require,module,exports){
|
|
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
|
|
var e, m
|
|
var eLen = (nBytes * 8) - mLen - 1
|
|
var eMax = (1 << eLen) - 1
|
|
var eBias = eMax >> 1
|
|
var nBits = -7
|
|
var i = isLE ? (nBytes - 1) : 0
|
|
var d = isLE ? -1 : 1
|
|
var s = buffer[offset + i]
|
|
|
|
i += d
|
|
|
|
e = s & ((1 << (-nBits)) - 1)
|
|
s >>= (-nBits)
|
|
nBits += eLen
|
|
for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
|
|
|
|
m = e & ((1 << (-nBits)) - 1)
|
|
e >>= (-nBits)
|
|
nBits += mLen
|
|
for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
|
|
|
|
if (e === 0) {
|
|
e = 1 - eBias
|
|
} else if (e === eMax) {
|
|
return m ? NaN : ((s ? -1 : 1) * Infinity)
|
|
} else {
|
|
m = m + Math.pow(2, mLen)
|
|
e = e - eBias
|
|
}
|
|
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
|
|
}
|
|
|
|
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
|
|
var e, m, c
|
|
var eLen = (nBytes * 8) - mLen - 1
|
|
var eMax = (1 << eLen) - 1
|
|
var eBias = eMax >> 1
|
|
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
|
|
var i = isLE ? 0 : (nBytes - 1)
|
|
var d = isLE ? 1 : -1
|
|
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
|
|
|
|
value = Math.abs(value)
|
|
|
|
if (isNaN(value) || value === Infinity) {
|
|
m = isNaN(value) ? 1 : 0
|
|
e = eMax
|
|
} else {
|
|
e = Math.floor(Math.log(value) / Math.LN2)
|
|
if (value * (c = Math.pow(2, -e)) < 1) {
|
|
e--
|
|
c *= 2
|
|
}
|
|
if (e + eBias >= 1) {
|
|
value += rt / c
|
|
} else {
|
|
value += rt * Math.pow(2, 1 - eBias)
|
|
}
|
|
if (value * c >= 2) {
|
|
e++
|
|
c /= 2
|
|
}
|
|
|
|
if (e + eBias >= eMax) {
|
|
m = 0
|
|
e = eMax
|
|
} else if (e + eBias >= 1) {
|
|
m = ((value * c) - 1) * Math.pow(2, mLen)
|
|
e = e + eBias
|
|
} else {
|
|
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
|
|
e = 0
|
|
}
|
|
}
|
|
|
|
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
|
|
|
|
e = (e << mLen) | m
|
|
eLen += mLen
|
|
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
|
|
|
|
buffer[offset + i - d] |= s * 128
|
|
}
|
|
|
|
},{}],16:[function(require,module,exports){
|
|
if (typeof Object.create === 'function') {
|
|
// implementation from standard node.js 'util' module
|
|
module.exports = function inherits(ctor, superCtor) {
|
|
ctor.super_ = superCtor
|
|
ctor.prototype = Object.create(superCtor.prototype, {
|
|
constructor: {
|
|
value: ctor,
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true
|
|
}
|
|
});
|
|
};
|
|
} else {
|
|
// old school shim for old browsers
|
|
module.exports = function inherits(ctor, superCtor) {
|
|
ctor.super_ = superCtor
|
|
var TempCtor = function () {}
|
|
TempCtor.prototype = superCtor.prototype
|
|
ctor.prototype = new TempCtor()
|
|
ctor.prototype.constructor = ctor
|
|
}
|
|
}
|
|
|
|
},{}],17:[function(require,module,exports){
|
|
/*!
|
|
* Determine if an object is a Buffer
|
|
*
|
|
* @author Feross Aboukhadijeh <https://feross.org>
|
|
* @license MIT
|
|
*/
|
|
|
|
// The _isBuffer check is for Safari 5-7 support, because it's missing
|
|
// Object.prototype.constructor. Remove this eventually
|
|
module.exports = function (obj) {
|
|
return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
|
|
}
|
|
|
|
function isBuffer (obj) {
|
|
return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
|
|
}
|
|
|
|
// For Node v0.10 support. Remove this eventually.
|
|
function isSlowBuffer (obj) {
|
|
return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
|
|
}
|
|
|
|
},{}],18:[function(require,module,exports){
|
|
// shim for using process in browser
|
|
var process = module.exports = {};
|
|
|
|
// cached from whatever global is present so that test runners that stub it
|
|
// don't break things. But we need to wrap it in a try catch in case it is
|
|
// wrapped in strict mode code which doesn't define any globals. It's inside a
|
|
// function because try/catches deoptimize in certain engines.
|
|
|
|
var cachedSetTimeout;
|
|
var cachedClearTimeout;
|
|
|
|
function defaultSetTimout() {
|
|
throw new Error('setTimeout has not been defined');
|
|
}
|
|
function defaultClearTimeout () {
|
|
throw new Error('clearTimeout has not been defined');
|
|
}
|
|
(function () {
|
|
try {
|
|
if (typeof setTimeout === 'function') {
|
|
cachedSetTimeout = setTimeout;
|
|
} else {
|
|
cachedSetTimeout = defaultSetTimout;
|
|
}
|
|
} catch (e) {
|
|
cachedSetTimeout = defaultSetTimout;
|
|
}
|
|
try {
|
|
if (typeof clearTimeout === 'function') {
|
|
cachedClearTimeout = clearTimeout;
|
|
} else {
|
|
cachedClearTimeout = defaultClearTimeout;
|
|
}
|
|
} catch (e) {
|
|
cachedClearTimeout = defaultClearTimeout;
|
|
}
|
|
} ())
|
|
function runTimeout(fun) {
|
|
if (cachedSetTimeout === setTimeout) {
|
|
//normal enviroments in sane situations
|
|
return setTimeout(fun, 0);
|
|
}
|
|
// if setTimeout wasn't available but was latter defined
|
|
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
|
|
cachedSetTimeout = setTimeout;
|
|
return setTimeout(fun, 0);
|
|
}
|
|
try {
|
|
// when when somebody has screwed with setTimeout but no I.E. maddness
|
|
return cachedSetTimeout(fun, 0);
|
|
} catch(e){
|
|
try {
|
|
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
|
|
return cachedSetTimeout.call(null, fun, 0);
|
|
} catch(e){
|
|
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
|
|
return cachedSetTimeout.call(this, fun, 0);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
function runClearTimeout(marker) {
|
|
if (cachedClearTimeout === clearTimeout) {
|
|
//normal enviroments in sane situations
|
|
return clearTimeout(marker);
|
|
}
|
|
// if clearTimeout wasn't available but was latter defined
|
|
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
|
|
cachedClearTimeout = clearTimeout;
|
|
return clearTimeout(marker);
|
|
}
|
|
try {
|
|
// when when somebody has screwed with setTimeout but no I.E. maddness
|
|
return cachedClearTimeout(marker);
|
|
} catch (e){
|
|
try {
|
|
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
|
|
return cachedClearTimeout.call(null, marker);
|
|
} catch (e){
|
|
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
|
|
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
|
|
return cachedClearTimeout.call(this, marker);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
}
|
|
var queue = [];
|
|
var draining = false;
|
|
var currentQueue;
|
|
var queueIndex = -1;
|
|
|
|
function cleanUpNextTick() {
|
|
if (!draining || !currentQueue) {
|
|
return;
|
|
}
|
|
draining = false;
|
|
if (currentQueue.length) {
|
|
queue = currentQueue.concat(queue);
|
|
} else {
|
|
queueIndex = -1;
|
|
}
|
|
if (queue.length) {
|
|
drainQueue();
|
|
}
|
|
}
|
|
|
|
function drainQueue() {
|
|
if (draining) {
|
|
return;
|
|
}
|
|
var timeout = runTimeout(cleanUpNextTick);
|
|
draining = true;
|
|
|
|
var len = queue.length;
|
|
while(len) {
|
|
currentQueue = queue;
|
|
queue = [];
|
|
while (++queueIndex < len) {
|
|
if (currentQueue) {
|
|
currentQueue[queueIndex].run();
|
|
}
|
|
}
|
|
queueIndex = -1;
|
|
len = queue.length;
|
|
}
|
|
currentQueue = null;
|
|
draining = false;
|
|
runClearTimeout(timeout);
|
|
}
|
|
|
|
process.nextTick = function (fun) {
|
|
var args = new Array(arguments.length - 1);
|
|
if (arguments.length > 1) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
args[i - 1] = arguments[i];
|
|
}
|
|
}
|
|
queue.push(new Item(fun, args));
|
|
if (queue.length === 1 && !draining) {
|
|
runTimeout(drainQueue);
|
|
}
|
|
};
|
|
|
|
// v8 likes predictible objects
|
|
function Item(fun, array) {
|
|
this.fun = fun;
|
|
this.array = array;
|
|
}
|
|
Item.prototype.run = function () {
|
|
this.fun.apply(null, this.array);
|
|
};
|
|
process.title = 'browser';
|
|
process.browser = true;
|
|
process.env = {};
|
|
process.argv = [];
|
|
process.version = ''; // empty string to avoid regexp issues
|
|
process.versions = {};
|
|
|
|
function noop() {}
|
|
|
|
process.on = noop;
|
|
process.addListener = noop;
|
|
process.once = noop;
|
|
process.off = noop;
|
|
process.removeListener = noop;
|
|
process.removeAllListeners = noop;
|
|
process.emit = noop;
|
|
process.prependListener = noop;
|
|
process.prependOnceListener = noop;
|
|
|
|
process.listeners = function (name) { return [] }
|
|
|
|
process.binding = function (name) {
|
|
throw new Error('process.binding is not supported');
|
|
};
|
|
|
|
process.cwd = function () { return '/' };
|
|
process.chdir = function (dir) {
|
|
throw new Error('process.chdir is not supported');
|
|
};
|
|
process.umask = function() { return 0; };
|
|
|
|
},{}],19:[function(require,module,exports){
|
|
module.exports = function isBuffer(arg) {
|
|
return arg && typeof arg === 'object'
|
|
&& typeof arg.copy === 'function'
|
|
&& typeof arg.fill === 'function'
|
|
&& typeof arg.readUInt8 === 'function';
|
|
}
|
|
},{}],20:[function(require,module,exports){
|
|
(function (process,global){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
var formatRegExp = /%[sdj%]/g;
|
|
exports.format = function(f) {
|
|
if (!isString(f)) {
|
|
var objects = [];
|
|
for (var i = 0; i < arguments.length; i++) {
|
|
objects.push(inspect(arguments[i]));
|
|
}
|
|
return objects.join(' ');
|
|
}
|
|
|
|
var i = 1;
|
|
var args = arguments;
|
|
var len = args.length;
|
|
var str = String(f).replace(formatRegExp, function(x) {
|
|
if (x === '%%') return '%';
|
|
if (i >= len) return x;
|
|
switch (x) {
|
|
case '%s': return String(args[i++]);
|
|
case '%d': return Number(args[i++]);
|
|
case '%j':
|
|
try {
|
|
return JSON.stringify(args[i++]);
|
|
} catch (_) {
|
|
return '[Circular]';
|
|
}
|
|
default:
|
|
return x;
|
|
}
|
|
});
|
|
for (var x = args[i]; i < len; x = args[++i]) {
|
|
if (isNull(x) || !isObject(x)) {
|
|
str += ' ' + x;
|
|
} else {
|
|
str += ' ' + inspect(x);
|
|
}
|
|
}
|
|
return str;
|
|
};
|
|
|
|
|
|
// Mark that a method should not be used.
|
|
// Returns a modified function which warns once by default.
|
|
// If --no-deprecation is set, then it is a no-op.
|
|
exports.deprecate = function(fn, msg) {
|
|
// Allow for deprecating things in the process of starting up.
|
|
if (isUndefined(global.process)) {
|
|
return function() {
|
|
return exports.deprecate(fn, msg).apply(this, arguments);
|
|
};
|
|
}
|
|
|
|
if (process.noDeprecation === true) {
|
|
return fn;
|
|
}
|
|
|
|
var warned = false;
|
|
function deprecated() {
|
|
if (!warned) {
|
|
if (process.throwDeprecation) {
|
|
throw new Error(msg);
|
|
} else if (process.traceDeprecation) {
|
|
console.trace(msg);
|
|
} else {
|
|
console.error(msg);
|
|
}
|
|
warned = true;
|
|
}
|
|
return fn.apply(this, arguments);
|
|
}
|
|
|
|
return deprecated;
|
|
};
|
|
|
|
|
|
var debugs = {};
|
|
var debugEnviron;
|
|
exports.debuglog = function(set) {
|
|
if (isUndefined(debugEnviron))
|
|
debugEnviron = process.env.NODE_DEBUG || '';
|
|
set = set.toUpperCase();
|
|
if (!debugs[set]) {
|
|
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
|
|
var pid = process.pid;
|
|
debugs[set] = function() {
|
|
var msg = exports.format.apply(exports, arguments);
|
|
console.error('%s %d: %s', set, pid, msg);
|
|
};
|
|
} else {
|
|
debugs[set] = function() {};
|
|
}
|
|
}
|
|
return debugs[set];
|
|
};
|
|
|
|
|
|
/**
|
|
* Echos the value of a value. Trys to print the value out
|
|
* in the best way possible given the different types.
|
|
*
|
|
* @param {Object} obj The object to print out.
|
|
* @param {Object} opts Optional options object that alters the output.
|
|
*/
|
|
/* legacy: obj, showHidden, depth, colors*/
|
|
function inspect(obj, opts) {
|
|
// default options
|
|
var ctx = {
|
|
seen: [],
|
|
stylize: stylizeNoColor
|
|
};
|
|
// legacy...
|
|
if (arguments.length >= 3) ctx.depth = arguments[2];
|
|
if (arguments.length >= 4) ctx.colors = arguments[3];
|
|
if (isBoolean(opts)) {
|
|
// legacy...
|
|
ctx.showHidden = opts;
|
|
} else if (opts) {
|
|
// got an "options" object
|
|
exports._extend(ctx, opts);
|
|
}
|
|
// set default options
|
|
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
|
|
if (isUndefined(ctx.depth)) ctx.depth = 2;
|
|
if (isUndefined(ctx.colors)) ctx.colors = false;
|
|
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
|
|
if (ctx.colors) ctx.stylize = stylizeWithColor;
|
|
return formatValue(ctx, obj, ctx.depth);
|
|
}
|
|
exports.inspect = inspect;
|
|
|
|
|
|
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
|
|
inspect.colors = {
|
|
'bold' : [1, 22],
|
|
'italic' : [3, 23],
|
|
'underline' : [4, 24],
|
|
'inverse' : [7, 27],
|
|
'white' : [37, 39],
|
|
'grey' : [90, 39],
|
|
'black' : [30, 39],
|
|
'blue' : [34, 39],
|
|
'cyan' : [36, 39],
|
|
'green' : [32, 39],
|
|
'magenta' : [35, 39],
|
|
'red' : [31, 39],
|
|
'yellow' : [33, 39]
|
|
};
|
|
|
|
// Don't use 'blue' not visible on cmd.exe
|
|
inspect.styles = {
|
|
'special': 'cyan',
|
|
'number': 'yellow',
|
|
'boolean': 'yellow',
|
|
'undefined': 'grey',
|
|
'null': 'bold',
|
|
'string': 'green',
|
|
'date': 'magenta',
|
|
// "name": intentionally not styling
|
|
'regexp': 'red'
|
|
};
|
|
|
|
|
|
function stylizeWithColor(str, styleType) {
|
|
var style = inspect.styles[styleType];
|
|
|
|
if (style) {
|
|
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
|
|
'\u001b[' + inspect.colors[style][1] + 'm';
|
|
} else {
|
|
return str;
|
|
}
|
|
}
|
|
|
|
|
|
function stylizeNoColor(str, styleType) {
|
|
return str;
|
|
}
|
|
|
|
|
|
function arrayToHash(array) {
|
|
var hash = {};
|
|
|
|
array.forEach(function(val, idx) {
|
|
hash[val] = true;
|
|
});
|
|
|
|
return hash;
|
|
}
|
|
|
|
|
|
function formatValue(ctx, value, recurseTimes) {
|
|
// Provide a hook for user-specified inspect functions.
|
|
// Check that value is an object with an inspect function on it
|
|
if (ctx.customInspect &&
|
|
value &&
|
|
isFunction(value.inspect) &&
|
|
// Filter out the util module, it's inspect function is special
|
|
value.inspect !== exports.inspect &&
|
|
// Also filter out any prototype objects using the circular check.
|
|
!(value.constructor && value.constructor.prototype === value)) {
|
|
var ret = value.inspect(recurseTimes, ctx);
|
|
if (!isString(ret)) {
|
|
ret = formatValue(ctx, ret, recurseTimes);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
// Primitive types cannot have properties
|
|
var primitive = formatPrimitive(ctx, value);
|
|
if (primitive) {
|
|
return primitive;
|
|
}
|
|
|
|
// Look up the keys of the object.
|
|
var keys = Object.keys(value);
|
|
var visibleKeys = arrayToHash(keys);
|
|
|
|
if (ctx.showHidden) {
|
|
keys = Object.getOwnPropertyNames(value);
|
|
}
|
|
|
|
// IE doesn't make error fields non-enumerable
|
|
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
|
|
if (isError(value)
|
|
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
|
|
return formatError(value);
|
|
}
|
|
|
|
// Some type of object without properties can be shortcutted.
|
|
if (keys.length === 0) {
|
|
if (isFunction(value)) {
|
|
var name = value.name ? ': ' + value.name : '';
|
|
return ctx.stylize('[Function' + name + ']', 'special');
|
|
}
|
|
if (isRegExp(value)) {
|
|
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
|
|
}
|
|
if (isDate(value)) {
|
|
return ctx.stylize(Date.prototype.toString.call(value), 'date');
|
|
}
|
|
if (isError(value)) {
|
|
return formatError(value);
|
|
}
|
|
}
|
|
|
|
var base = '', array = false, braces = ['{', '}'];
|
|
|
|
// Make Array say that they are Array
|
|
if (isArray(value)) {
|
|
array = true;
|
|
braces = ['[', ']'];
|
|
}
|
|
|
|
// Make functions say that they are functions
|
|
if (isFunction(value)) {
|
|
var n = value.name ? ': ' + value.name : '';
|
|
base = ' [Function' + n + ']';
|
|
}
|
|
|
|
// Make RegExps say that they are RegExps
|
|
if (isRegExp(value)) {
|
|
base = ' ' + RegExp.prototype.toString.call(value);
|
|
}
|
|
|
|
// Make dates with properties first say the date
|
|
if (isDate(value)) {
|
|
base = ' ' + Date.prototype.toUTCString.call(value);
|
|
}
|
|
|
|
// Make error with message first say the error
|
|
if (isError(value)) {
|
|
base = ' ' + formatError(value);
|
|
}
|
|
|
|
if (keys.length === 0 && (!array || value.length == 0)) {
|
|
return braces[0] + base + braces[1];
|
|
}
|
|
|
|
if (recurseTimes < 0) {
|
|
if (isRegExp(value)) {
|
|
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
|
|
} else {
|
|
return ctx.stylize('[Object]', 'special');
|
|
}
|
|
}
|
|
|
|
ctx.seen.push(value);
|
|
|
|
var output;
|
|
if (array) {
|
|
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
|
|
} else {
|
|
output = keys.map(function(key) {
|
|
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
|
|
});
|
|
}
|
|
|
|
ctx.seen.pop();
|
|
|
|
return reduceToSingleString(output, base, braces);
|
|
}
|
|
|
|
|
|
function formatPrimitive(ctx, value) {
|
|
if (isUndefined(value))
|
|
return ctx.stylize('undefined', 'undefined');
|
|
if (isString(value)) {
|
|
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
|
|
.replace(/'/g, "\\'")
|
|
.replace(/\\"/g, '"') + '\'';
|
|
return ctx.stylize(simple, 'string');
|
|
}
|
|
if (isNumber(value))
|
|
return ctx.stylize('' + value, 'number');
|
|
if (isBoolean(value))
|
|
return ctx.stylize('' + value, 'boolean');
|
|
// For some reason typeof null is "object", so special case here.
|
|
if (isNull(value))
|
|
return ctx.stylize('null', 'null');
|
|
}
|
|
|
|
|
|
function formatError(value) {
|
|
return '[' + Error.prototype.toString.call(value) + ']';
|
|
}
|
|
|
|
|
|
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
var output = [];
|
|
for (var i = 0, l = value.length; i < l; ++i) {
|
|
if (hasOwnProperty(value, String(i))) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
String(i), true));
|
|
} else {
|
|
output.push('');
|
|
}
|
|
}
|
|
keys.forEach(function(key) {
|
|
if (!key.match(/^\d+$/)) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
key, true));
|
|
}
|
|
});
|
|
return output;
|
|
}
|
|
|
|
|
|
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
|
|
var name, str, desc;
|
|
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
|
|
if (desc.get) {
|
|
if (desc.set) {
|
|
str = ctx.stylize('[Getter/Setter]', 'special');
|
|
} else {
|
|
str = ctx.stylize('[Getter]', 'special');
|
|
}
|
|
} else {
|
|
if (desc.set) {
|
|
str = ctx.stylize('[Setter]', 'special');
|
|
}
|
|
}
|
|
if (!hasOwnProperty(visibleKeys, key)) {
|
|
name = '[' + key + ']';
|
|
}
|
|
if (!str) {
|
|
if (ctx.seen.indexOf(desc.value) < 0) {
|
|
if (isNull(recurseTimes)) {
|
|
str = formatValue(ctx, desc.value, null);
|
|
} else {
|
|
str = formatValue(ctx, desc.value, recurseTimes - 1);
|
|
}
|
|
if (str.indexOf('\n') > -1) {
|
|
if (array) {
|
|
str = str.split('\n').map(function(line) {
|
|
return ' ' + line;
|
|
}).join('\n').substr(2);
|
|
} else {
|
|
str = '\n' + str.split('\n').map(function(line) {
|
|
return ' ' + line;
|
|
}).join('\n');
|
|
}
|
|
}
|
|
} else {
|
|
str = ctx.stylize('[Circular]', 'special');
|
|
}
|
|
}
|
|
if (isUndefined(name)) {
|
|
if (array && key.match(/^\d+$/)) {
|
|
return str;
|
|
}
|
|
name = JSON.stringify('' + key);
|
|
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
|
|
name = name.substr(1, name.length - 2);
|
|
name = ctx.stylize(name, 'name');
|
|
} else {
|
|
name = name.replace(/'/g, "\\'")
|
|
.replace(/\\"/g, '"')
|
|
.replace(/(^"|"$)/g, "'");
|
|
name = ctx.stylize(name, 'string');
|
|
}
|
|
}
|
|
|
|
return name + ': ' + str;
|
|
}
|
|
|
|
|
|
function reduceToSingleString(output, base, braces) {
|
|
var numLinesEst = 0;
|
|
var length = output.reduce(function(prev, cur) {
|
|
numLinesEst++;
|
|
if (cur.indexOf('\n') >= 0) numLinesEst++;
|
|
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
|
|
}, 0);
|
|
|
|
if (length > 60) {
|
|
return braces[0] +
|
|
(base === '' ? '' : base + '\n ') +
|
|
' ' +
|
|
output.join(',\n ') +
|
|
' ' +
|
|
braces[1];
|
|
}
|
|
|
|
return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
|
|
}
|
|
|
|
|
|
// NOTE: These type checking functions intentionally don't use `instanceof`
|
|
// because it is fragile and can be easily faked with `Object.create()`.
|
|
function isArray(ar) {
|
|
return Array.isArray(ar);
|
|
}
|
|
exports.isArray = isArray;
|
|
|
|
function isBoolean(arg) {
|
|
return typeof arg === 'boolean';
|
|
}
|
|
exports.isBoolean = isBoolean;
|
|
|
|
function isNull(arg) {
|
|
return arg === null;
|
|
}
|
|
exports.isNull = isNull;
|
|
|
|
function isNullOrUndefined(arg) {
|
|
return arg == null;
|
|
}
|
|
exports.isNullOrUndefined = isNullOrUndefined;
|
|
|
|
function isNumber(arg) {
|
|
return typeof arg === 'number';
|
|
}
|
|
exports.isNumber = isNumber;
|
|
|
|
function isString(arg) {
|
|
return typeof arg === 'string';
|
|
}
|
|
exports.isString = isString;
|
|
|
|
function isSymbol(arg) {
|
|
return typeof arg === 'symbol';
|
|
}
|
|
exports.isSymbol = isSymbol;
|
|
|
|
function isUndefined(arg) {
|
|
return arg === void 0;
|
|
}
|
|
exports.isUndefined = isUndefined;
|
|
|
|
function isRegExp(re) {
|
|
return isObject(re) && objectToString(re) === '[object RegExp]';
|
|
}
|
|
exports.isRegExp = isRegExp;
|
|
|
|
function isObject(arg) {
|
|
return typeof arg === 'object' && arg !== null;
|
|
}
|
|
exports.isObject = isObject;
|
|
|
|
function isDate(d) {
|
|
return isObject(d) && objectToString(d) === '[object Date]';
|
|
}
|
|
exports.isDate = isDate;
|
|
|
|
function isError(e) {
|
|
return isObject(e) &&
|
|
(objectToString(e) === '[object Error]' || e instanceof Error);
|
|
}
|
|
exports.isError = isError;
|
|
|
|
function isFunction(arg) {
|
|
return typeof arg === 'function';
|
|
}
|
|
exports.isFunction = isFunction;
|
|
|
|
function isPrimitive(arg) {
|
|
return arg === null ||
|
|
typeof arg === 'boolean' ||
|
|
typeof arg === 'number' ||
|
|
typeof arg === 'string' ||
|
|
typeof arg === 'symbol' || // ES6 symbol
|
|
typeof arg === 'undefined';
|
|
}
|
|
exports.isPrimitive = isPrimitive;
|
|
|
|
exports.isBuffer = require('./support/isBuffer');
|
|
|
|
function objectToString(o) {
|
|
return Object.prototype.toString.call(o);
|
|
}
|
|
|
|
|
|
function pad(n) {
|
|
return n < 10 ? '0' + n.toString(10) : n.toString(10);
|
|
}
|
|
|
|
|
|
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
|
|
'Oct', 'Nov', 'Dec'];
|
|
|
|
// 26 Feb 16:19:34
|
|
function timestamp() {
|
|
var d = new Date();
|
|
var time = [pad(d.getHours()),
|
|
pad(d.getMinutes()),
|
|
pad(d.getSeconds())].join(':');
|
|
return [d.getDate(), months[d.getMonth()], time].join(' ');
|
|
}
|
|
|
|
|
|
// log is just a thin wrapper to console.log that prepends a timestamp
|
|
exports.log = function() {
|
|
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
|
|
};
|
|
|
|
|
|
/**
|
|
* Inherit the prototype methods from one constructor into another.
|
|
*
|
|
* The Function.prototype.inherits from lang.js rewritten as a standalone
|
|
* function (not on Function.prototype). NOTE: If this file is to be loaded
|
|
* during bootstrapping this function needs to be rewritten using some native
|
|
* functions as prototype setup using normal JavaScript does not work as
|
|
* expected during bootstrapping (see mirror.js in r114903).
|
|
*
|
|
* @param {function} ctor Constructor function which needs to inherit the
|
|
* prototype.
|
|
* @param {function} superCtor Constructor function to inherit prototype from.
|
|
*/
|
|
exports.inherits = require('inherits');
|
|
|
|
exports._extend = function(origin, add) {
|
|
// Don't do anything if add isn't an object
|
|
if (!add || !isObject(add)) return origin;
|
|
|
|
var keys = Object.keys(add);
|
|
var i = keys.length;
|
|
while (i--) {
|
|
origin[keys[i]] = add[keys[i]];
|
|
}
|
|
return origin;
|
|
};
|
|
|
|
function hasOwnProperty(obj, prop) {
|
|
return Object.prototype.hasOwnProperty.call(obj, prop);
|
|
}
|
|
|
|
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"./support/isBuffer":19,"_process":18,"inherits":16}],"buffer":[function(require,module,exports){
|
|
(function (Buffer){
|
|
/*!
|
|
* The buffer module from node.js, for the browser.
|
|
*
|
|
* @author Feross Aboukhadijeh <https://feross.org>
|
|
* @license MIT
|
|
*/
|
|
/* eslint-disable no-proto */
|
|
|
|
'use strict'
|
|
|
|
var base64 = require('base64-js')
|
|
var ieee754 = require('ieee754')
|
|
var customInspectSymbol =
|
|
(typeof Symbol === 'function' && typeof Symbol.for === 'function')
|
|
? Symbol.for('nodejs.util.inspect.custom')
|
|
: null
|
|
|
|
exports.Buffer = Buffer
|
|
exports.SlowBuffer = SlowBuffer
|
|
exports.INSPECT_MAX_BYTES = 50
|
|
|
|
var K_MAX_LENGTH = 0x7fffffff
|
|
exports.kMaxLength = K_MAX_LENGTH
|
|
|
|
/**
|
|
* If `Buffer.TYPED_ARRAY_SUPPORT`:
|
|
* === true Use Uint8Array implementation (fastest)
|
|
* === false Print warning and recommend using `buffer` v4.x which has an Object
|
|
* implementation (most compatible, even IE6)
|
|
*
|
|
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
|
|
* Opera 11.6+, iOS 4.2+.
|
|
*
|
|
* We report that the browser does not support typed arrays if the are not subclassable
|
|
* using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
|
|
* (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
|
|
* for __proto__ and has a buggy typed array implementation.
|
|
*/
|
|
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
|
|
|
|
if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
|
|
typeof console.error === 'function') {
|
|
console.error(
|
|
'This browser lacks typed array (Uint8Array) support which is required by ' +
|
|
'`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
|
|
)
|
|
}
|
|
|
|
function typedArraySupport () {
|
|
// Can typed array instances can be augmented?
|
|
try {
|
|
var arr = new Uint8Array(1)
|
|
var proto = { foo: function () { return 42 } }
|
|
Object.setPrototypeOf(proto, Uint8Array.prototype)
|
|
Object.setPrototypeOf(arr, proto)
|
|
return arr.foo() === 42
|
|
} catch (e) {
|
|
return false
|
|
}
|
|
}
|
|
|
|
Object.defineProperty(Buffer.prototype, 'parent', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (!Buffer.isBuffer(this)) return undefined
|
|
return this.buffer
|
|
}
|
|
})
|
|
|
|
Object.defineProperty(Buffer.prototype, 'offset', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (!Buffer.isBuffer(this)) return undefined
|
|
return this.byteOffset
|
|
}
|
|
})
|
|
|
|
function createBuffer (length) {
|
|
if (length > K_MAX_LENGTH) {
|
|
throw new RangeError('The value "' + length + '" is invalid for option "size"')
|
|
}
|
|
// Return an augmented `Uint8Array` instance
|
|
var buf = new Uint8Array(length)
|
|
Object.setPrototypeOf(buf, Buffer.prototype)
|
|
return buf
|
|
}
|
|
|
|
/**
|
|
* The Buffer constructor returns instances of `Uint8Array` that have their
|
|
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
|
|
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
|
|
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
|
|
* returns a single octet.
|
|
*
|
|
* The `Uint8Array` prototype remains unmodified.
|
|
*/
|
|
|
|
function Buffer (arg, encodingOrOffset, length) {
|
|
// Common case.
|
|
if (typeof arg === 'number') {
|
|
if (typeof encodingOrOffset === 'string') {
|
|
throw new TypeError(
|
|
'The "string" argument must be of type string. Received type number'
|
|
)
|
|
}
|
|
return allocUnsafe(arg)
|
|
}
|
|
return from(arg, encodingOrOffset, length)
|
|
}
|
|
|
|
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
|
|
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
|
|
Buffer[Symbol.species] === Buffer) {
|
|
Object.defineProperty(Buffer, Symbol.species, {
|
|
value: null,
|
|
configurable: true,
|
|
enumerable: false,
|
|
writable: false
|
|
})
|
|
}
|
|
|
|
Buffer.poolSize = 8192 // not used by this implementation
|
|
|
|
function from (value, encodingOrOffset, length) {
|
|
if (typeof value === 'string') {
|
|
return fromString(value, encodingOrOffset)
|
|
}
|
|
|
|
if (ArrayBuffer.isView(value)) {
|
|
return fromArrayLike(value)
|
|
}
|
|
|
|
if (value == null) {
|
|
throw new TypeError(
|
|
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
|
|
'or Array-like Object. Received type ' + (typeof value)
|
|
)
|
|
}
|
|
|
|
if (isInstance(value, ArrayBuffer) ||
|
|
(value && isInstance(value.buffer, ArrayBuffer))) {
|
|
return fromArrayBuffer(value, encodingOrOffset, length)
|
|
}
|
|
|
|
if (typeof SharedArrayBuffer !== 'undefined' &&
|
|
(isInstance(value, SharedArrayBuffer) ||
|
|
(value && isInstance(value.buffer, SharedArrayBuffer)))) {
|
|
return fromArrayBuffer(value, encodingOrOffset, length)
|
|
}
|
|
|
|
if (typeof value === 'number') {
|
|
throw new TypeError(
|
|
'The "value" argument must not be of type number. Received type number'
|
|
)
|
|
}
|
|
|
|
var valueOf = value.valueOf && value.valueOf()
|
|
if (valueOf != null && valueOf !== value) {
|
|
return Buffer.from(valueOf, encodingOrOffset, length)
|
|
}
|
|
|
|
var b = fromObject(value)
|
|
if (b) return b
|
|
|
|
if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
|
|
typeof value[Symbol.toPrimitive] === 'function') {
|
|
return Buffer.from(
|
|
value[Symbol.toPrimitive]('string'), encodingOrOffset, length
|
|
)
|
|
}
|
|
|
|
throw new TypeError(
|
|
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
|
|
'or Array-like Object. Received type ' + (typeof value)
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
|
|
* if value is a number.
|
|
* Buffer.from(str[, encoding])
|
|
* Buffer.from(array)
|
|
* Buffer.from(buffer)
|
|
* Buffer.from(arrayBuffer[, byteOffset[, length]])
|
|
**/
|
|
Buffer.from = function (value, encodingOrOffset, length) {
|
|
return from(value, encodingOrOffset, length)
|
|
}
|
|
|
|
// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
|
|
// https://github.com/feross/buffer/pull/148
|
|
Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)
|
|
Object.setPrototypeOf(Buffer, Uint8Array)
|
|
|
|
function assertSize (size) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('"size" argument must be of type number')
|
|
} else if (size < 0) {
|
|
throw new RangeError('The value "' + size + '" is invalid for option "size"')
|
|
}
|
|
}
|
|
|
|
function alloc (size, fill, encoding) {
|
|
assertSize(size)
|
|
if (size <= 0) {
|
|
return createBuffer(size)
|
|
}
|
|
if (fill !== undefined) {
|
|
// Only pay attention to encoding if it's a string. This
|
|
// prevents accidentally sending in a number that would
|
|
// be interpretted as a start offset.
|
|
return typeof encoding === 'string'
|
|
? createBuffer(size).fill(fill, encoding)
|
|
: createBuffer(size).fill(fill)
|
|
}
|
|
return createBuffer(size)
|
|
}
|
|
|
|
/**
|
|
* Creates a new filled Buffer instance.
|
|
* alloc(size[, fill[, encoding]])
|
|
**/
|
|
Buffer.alloc = function (size, fill, encoding) {
|
|
return alloc(size, fill, encoding)
|
|
}
|
|
|
|
function allocUnsafe (size) {
|
|
assertSize(size)
|
|
return createBuffer(size < 0 ? 0 : checked(size) | 0)
|
|
}
|
|
|
|
/**
|
|
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
|
|
* */
|
|
Buffer.allocUnsafe = function (size) {
|
|
return allocUnsafe(size)
|
|
}
|
|
/**
|
|
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
|
|
*/
|
|
Buffer.allocUnsafeSlow = function (size) {
|
|
return allocUnsafe(size)
|
|
}
|
|
|
|
function fromString (string, encoding) {
|
|
if (typeof encoding !== 'string' || encoding === '') {
|
|
encoding = 'utf8'
|
|
}
|
|
|
|
if (!Buffer.isEncoding(encoding)) {
|
|
throw new TypeError('Unknown encoding: ' + encoding)
|
|
}
|
|
|
|
var length = byteLength(string, encoding) | 0
|
|
var buf = createBuffer(length)
|
|
|
|
var actual = buf.write(string, encoding)
|
|
|
|
if (actual !== length) {
|
|
// Writing a hex string, for example, that contains invalid characters will
|
|
// cause everything after the first invalid character to be ignored. (e.g.
|
|
// 'abxxcd' will be treated as 'ab')
|
|
buf = buf.slice(0, actual)
|
|
}
|
|
|
|
return buf
|
|
}
|
|
|
|
function fromArrayLike (array) {
|
|
var length = array.length < 0 ? 0 : checked(array.length) | 0
|
|
var buf = createBuffer(length)
|
|
for (var i = 0; i < length; i += 1) {
|
|
buf[i] = array[i] & 255
|
|
}
|
|
return buf
|
|
}
|
|
|
|
function fromArrayBuffer (array, byteOffset, length) {
|
|
if (byteOffset < 0 || array.byteLength < byteOffset) {
|
|
throw new RangeError('"offset" is outside of buffer bounds')
|
|
}
|
|
|
|
if (array.byteLength < byteOffset + (length || 0)) {
|
|
throw new RangeError('"length" is outside of buffer bounds')
|
|
}
|
|
|
|
var buf
|
|
if (byteOffset === undefined && length === undefined) {
|
|
buf = new Uint8Array(array)
|
|
} else if (length === undefined) {
|
|
buf = new Uint8Array(array, byteOffset)
|
|
} else {
|
|
buf = new Uint8Array(array, byteOffset, length)
|
|
}
|
|
|
|
// Return an augmented `Uint8Array` instance
|
|
Object.setPrototypeOf(buf, Buffer.prototype)
|
|
|
|
return buf
|
|
}
|
|
|
|
function fromObject (obj) {
|
|
if (Buffer.isBuffer(obj)) {
|
|
var len = checked(obj.length) | 0
|
|
var buf = createBuffer(len)
|
|
|
|
if (buf.length === 0) {
|
|
return buf
|
|
}
|
|
|
|
obj.copy(buf, 0, 0, len)
|
|
return buf
|
|
}
|
|
|
|
if (obj.length !== undefined) {
|
|
if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
|
|
return createBuffer(0)
|
|
}
|
|
return fromArrayLike(obj)
|
|
}
|
|
|
|
if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
|
|
return fromArrayLike(obj.data)
|
|
}
|
|
}
|
|
|
|
function checked (length) {
|
|
// Note: cannot use `length < K_MAX_LENGTH` here because that fails when
|
|
// length is NaN (which is otherwise coerced to zero.)
|
|
if (length >= K_MAX_LENGTH) {
|
|
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
|
|
'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
|
|
}
|
|
return length | 0
|
|
}
|
|
|
|
function SlowBuffer (length) {
|
|
if (+length != length) { // eslint-disable-line eqeqeq
|
|
length = 0
|
|
}
|
|
return Buffer.alloc(+length)
|
|
}
|
|
|
|
Buffer.isBuffer = function isBuffer (b) {
|
|
return b != null && b._isBuffer === true &&
|
|
b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
|
|
}
|
|
|
|
Buffer.compare = function compare (a, b) {
|
|
if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
|
|
if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
|
|
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
|
|
throw new TypeError(
|
|
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
|
|
)
|
|
}
|
|
|
|
if (a === b) return 0
|
|
|
|
var x = a.length
|
|
var y = b.length
|
|
|
|
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
|
|
if (a[i] !== b[i]) {
|
|
x = a[i]
|
|
y = b[i]
|
|
break
|
|
}
|
|
}
|
|
|
|
if (x < y) return -1
|
|
if (y < x) return 1
|
|
return 0
|
|
}
|
|
|
|
Buffer.isEncoding = function isEncoding (encoding) {
|
|
switch (String(encoding).toLowerCase()) {
|
|
case 'hex':
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
case 'ascii':
|
|
case 'latin1':
|
|
case 'binary':
|
|
case 'base64':
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
Buffer.concat = function concat (list, length) {
|
|
if (!Array.isArray(list)) {
|
|
throw new TypeError('"list" argument must be an Array of Buffers')
|
|
}
|
|
|
|
if (list.length === 0) {
|
|
return Buffer.alloc(0)
|
|
}
|
|
|
|
var i
|
|
if (length === undefined) {
|
|
length = 0
|
|
for (i = 0; i < list.length; ++i) {
|
|
length += list[i].length
|
|
}
|
|
}
|
|
|
|
var buffer = Buffer.allocUnsafe(length)
|
|
var pos = 0
|
|
for (i = 0; i < list.length; ++i) {
|
|
var buf = list[i]
|
|
if (isInstance(buf, Uint8Array)) {
|
|
buf = Buffer.from(buf)
|
|
}
|
|
if (!Buffer.isBuffer(buf)) {
|
|
throw new TypeError('"list" argument must be an Array of Buffers')
|
|
}
|
|
buf.copy(buffer, pos)
|
|
pos += buf.length
|
|
}
|
|
return buffer
|
|
}
|
|
|
|
function byteLength (string, encoding) {
|
|
if (Buffer.isBuffer(string)) {
|
|
return string.length
|
|
}
|
|
if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
|
|
return string.byteLength
|
|
}
|
|
if (typeof string !== 'string') {
|
|
throw new TypeError(
|
|
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
|
|
'Received type ' + typeof string
|
|
)
|
|
}
|
|
|
|
var len = string.length
|
|
var mustMatch = (arguments.length > 2 && arguments[2] === true)
|
|
if (!mustMatch && len === 0) return 0
|
|
|
|
// Use a for loop to avoid recursion
|
|
var loweredCase = false
|
|
for (;;) {
|
|
switch (encoding) {
|
|
case 'ascii':
|
|
case 'latin1':
|
|
case 'binary':
|
|
return len
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return utf8ToBytes(string).length
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return len * 2
|
|
case 'hex':
|
|
return len >>> 1
|
|
case 'base64':
|
|
return base64ToBytes(string).length
|
|
default:
|
|
if (loweredCase) {
|
|
return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
|
|
}
|
|
encoding = ('' + encoding).toLowerCase()
|
|
loweredCase = true
|
|
}
|
|
}
|
|
}
|
|
Buffer.byteLength = byteLength
|
|
|
|
function slowToString (encoding, start, end) {
|
|
var loweredCase = false
|
|
|
|
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
|
|
// property of a typed array.
|
|
|
|
// This behaves neither like String nor Uint8Array in that we set start/end
|
|
// to their upper/lower bounds if the value passed is out of range.
|
|
// undefined is handled specially as per ECMA-262 6th Edition,
|
|
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
|
|
if (start === undefined || start < 0) {
|
|
start = 0
|
|
}
|
|
// Return early if start > this.length. Done here to prevent potential uint32
|
|
// coercion fail below.
|
|
if (start > this.length) {
|
|
return ''
|
|
}
|
|
|
|
if (end === undefined || end > this.length) {
|
|
end = this.length
|
|
}
|
|
|
|
if (end <= 0) {
|
|
return ''
|
|
}
|
|
|
|
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
|
|
end >>>= 0
|
|
start >>>= 0
|
|
|
|
if (end <= start) {
|
|
return ''
|
|
}
|
|
|
|
if (!encoding) encoding = 'utf8'
|
|
|
|
while (true) {
|
|
switch (encoding) {
|
|
case 'hex':
|
|
return hexSlice(this, start, end)
|
|
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return utf8Slice(this, start, end)
|
|
|
|
case 'ascii':
|
|
return asciiSlice(this, start, end)
|
|
|
|
case 'latin1':
|
|
case 'binary':
|
|
return latin1Slice(this, start, end)
|
|
|
|
case 'base64':
|
|
return base64Slice(this, start, end)
|
|
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return utf16leSlice(this, start, end)
|
|
|
|
default:
|
|
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
|
|
encoding = (encoding + '').toLowerCase()
|
|
loweredCase = true
|
|
}
|
|
}
|
|
}
|
|
|
|
// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
|
|
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
|
|
// reliably in a browserify context because there could be multiple different
|
|
// copies of the 'buffer' package in use. This method works even for Buffer
|
|
// instances that were created from another copy of the `buffer` package.
|
|
// See: https://github.com/feross/buffer/issues/154
|
|
Buffer.prototype._isBuffer = true
|
|
|
|
function swap (b, n, m) {
|
|
var i = b[n]
|
|
b[n] = b[m]
|
|
b[m] = i
|
|
}
|
|
|
|
Buffer.prototype.swap16 = function swap16 () {
|
|
var len = this.length
|
|
if (len % 2 !== 0) {
|
|
throw new RangeError('Buffer size must be a multiple of 16-bits')
|
|
}
|
|
for (var i = 0; i < len; i += 2) {
|
|
swap(this, i, i + 1)
|
|
}
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.swap32 = function swap32 () {
|
|
var len = this.length
|
|
if (len % 4 !== 0) {
|
|
throw new RangeError('Buffer size must be a multiple of 32-bits')
|
|
}
|
|
for (var i = 0; i < len; i += 4) {
|
|
swap(this, i, i + 3)
|
|
swap(this, i + 1, i + 2)
|
|
}
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.swap64 = function swap64 () {
|
|
var len = this.length
|
|
if (len % 8 !== 0) {
|
|
throw new RangeError('Buffer size must be a multiple of 64-bits')
|
|
}
|
|
for (var i = 0; i < len; i += 8) {
|
|
swap(this, i, i + 7)
|
|
swap(this, i + 1, i + 6)
|
|
swap(this, i + 2, i + 5)
|
|
swap(this, i + 3, i + 4)
|
|
}
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.toString = function toString () {
|
|
var length = this.length
|
|
if (length === 0) return ''
|
|
if (arguments.length === 0) return utf8Slice(this, 0, length)
|
|
return slowToString.apply(this, arguments)
|
|
}
|
|
|
|
Buffer.prototype.toLocaleString = Buffer.prototype.toString
|
|
|
|
Buffer.prototype.equals = function equals (b) {
|
|
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
|
|
if (this === b) return true
|
|
return Buffer.compare(this, b) === 0
|
|
}
|
|
|
|
Buffer.prototype.inspect = function inspect () {
|
|
var str = ''
|
|
var max = exports.INSPECT_MAX_BYTES
|
|
str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
|
|
if (this.length > max) str += ' ... '
|
|
return '<Buffer ' + str + '>'
|
|
}
|
|
if (customInspectSymbol) {
|
|
Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect
|
|
}
|
|
|
|
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
|
|
if (isInstance(target, Uint8Array)) {
|
|
target = Buffer.from(target, target.offset, target.byteLength)
|
|
}
|
|
if (!Buffer.isBuffer(target)) {
|
|
throw new TypeError(
|
|
'The "target" argument must be one of type Buffer or Uint8Array. ' +
|
|
'Received type ' + (typeof target)
|
|
)
|
|
}
|
|
|
|
if (start === undefined) {
|
|
start = 0
|
|
}
|
|
if (end === undefined) {
|
|
end = target ? target.length : 0
|
|
}
|
|
if (thisStart === undefined) {
|
|
thisStart = 0
|
|
}
|
|
if (thisEnd === undefined) {
|
|
thisEnd = this.length
|
|
}
|
|
|
|
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
|
|
throw new RangeError('out of range index')
|
|
}
|
|
|
|
if (thisStart >= thisEnd && start >= end) {
|
|
return 0
|
|
}
|
|
if (thisStart >= thisEnd) {
|
|
return -1
|
|
}
|
|
if (start >= end) {
|
|
return 1
|
|
}
|
|
|
|
start >>>= 0
|
|
end >>>= 0
|
|
thisStart >>>= 0
|
|
thisEnd >>>= 0
|
|
|
|
if (this === target) return 0
|
|
|
|
var x = thisEnd - thisStart
|
|
var y = end - start
|
|
var len = Math.min(x, y)
|
|
|
|
var thisCopy = this.slice(thisStart, thisEnd)
|
|
var targetCopy = target.slice(start, end)
|
|
|
|
for (var i = 0; i < len; ++i) {
|
|
if (thisCopy[i] !== targetCopy[i]) {
|
|
x = thisCopy[i]
|
|
y = targetCopy[i]
|
|
break
|
|
}
|
|
}
|
|
|
|
if (x < y) return -1
|
|
if (y < x) return 1
|
|
return 0
|
|
}
|
|
|
|
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
|
|
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
|
|
//
|
|
// Arguments:
|
|
// - buffer - a Buffer to search
|
|
// - val - a string, Buffer, or number
|
|
// - byteOffset - an index into `buffer`; will be clamped to an int32
|
|
// - encoding - an optional encoding, relevant is val is a string
|
|
// - dir - true for indexOf, false for lastIndexOf
|
|
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
|
|
// Empty buffer means no match
|
|
if (buffer.length === 0) return -1
|
|
|
|
// Normalize byteOffset
|
|
if (typeof byteOffset === 'string') {
|
|
encoding = byteOffset
|
|
byteOffset = 0
|
|
} else if (byteOffset > 0x7fffffff) {
|
|
byteOffset = 0x7fffffff
|
|
} else if (byteOffset < -0x80000000) {
|
|
byteOffset = -0x80000000
|
|
}
|
|
byteOffset = +byteOffset // Coerce to Number.
|
|
if (numberIsNaN(byteOffset)) {
|
|
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
|
|
byteOffset = dir ? 0 : (buffer.length - 1)
|
|
}
|
|
|
|
// Normalize byteOffset: negative offsets start from the end of the buffer
|
|
if (byteOffset < 0) byteOffset = buffer.length + byteOffset
|
|
if (byteOffset >= buffer.length) {
|
|
if (dir) return -1
|
|
else byteOffset = buffer.length - 1
|
|
} else if (byteOffset < 0) {
|
|
if (dir) byteOffset = 0
|
|
else return -1
|
|
}
|
|
|
|
// Normalize val
|
|
if (typeof val === 'string') {
|
|
val = Buffer.from(val, encoding)
|
|
}
|
|
|
|
// Finally, search either indexOf (if dir is true) or lastIndexOf
|
|
if (Buffer.isBuffer(val)) {
|
|
// Special case: looking for empty string/buffer always fails
|
|
if (val.length === 0) {
|
|
return -1
|
|
}
|
|
return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
|
|
} else if (typeof val === 'number') {
|
|
val = val & 0xFF // Search for a byte value [0-255]
|
|
if (typeof Uint8Array.prototype.indexOf === 'function') {
|
|
if (dir) {
|
|
return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
|
|
} else {
|
|
return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
|
|
}
|
|
}
|
|
return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)
|
|
}
|
|
|
|
throw new TypeError('val must be string, number or Buffer')
|
|
}
|
|
|
|
function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
|
|
var indexSize = 1
|
|
var arrLength = arr.length
|
|
var valLength = val.length
|
|
|
|
if (encoding !== undefined) {
|
|
encoding = String(encoding).toLowerCase()
|
|
if (encoding === 'ucs2' || encoding === 'ucs-2' ||
|
|
encoding === 'utf16le' || encoding === 'utf-16le') {
|
|
if (arr.length < 2 || val.length < 2) {
|
|
return -1
|
|
}
|
|
indexSize = 2
|
|
arrLength /= 2
|
|
valLength /= 2
|
|
byteOffset /= 2
|
|
}
|
|
}
|
|
|
|
function read (buf, i) {
|
|
if (indexSize === 1) {
|
|
return buf[i]
|
|
} else {
|
|
return buf.readUInt16BE(i * indexSize)
|
|
}
|
|
}
|
|
|
|
var i
|
|
if (dir) {
|
|
var foundIndex = -1
|
|
for (i = byteOffset; i < arrLength; i++) {
|
|
if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
|
|
if (foundIndex === -1) foundIndex = i
|
|
if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
|
|
} else {
|
|
if (foundIndex !== -1) i -= i - foundIndex
|
|
foundIndex = -1
|
|
}
|
|
}
|
|
} else {
|
|
if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
|
|
for (i = byteOffset; i >= 0; i--) {
|
|
var found = true
|
|
for (var j = 0; j < valLength; j++) {
|
|
if (read(arr, i + j) !== read(val, j)) {
|
|
found = false
|
|
break
|
|
}
|
|
}
|
|
if (found) return i
|
|
}
|
|
}
|
|
|
|
return -1
|
|
}
|
|
|
|
Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
|
|
return this.indexOf(val, byteOffset, encoding) !== -1
|
|
}
|
|
|
|
Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
|
|
return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
|
|
}
|
|
|
|
Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
|
|
return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
|
|
}
|
|
|
|
function hexWrite (buf, string, offset, length) {
|
|
offset = Number(offset) || 0
|
|
var remaining = buf.length - offset
|
|
if (!length) {
|
|
length = remaining
|
|
} else {
|
|
length = Number(length)
|
|
if (length > remaining) {
|
|
length = remaining
|
|
}
|
|
}
|
|
|
|
var strLen = string.length
|
|
|
|
if (length > strLen / 2) {
|
|
length = strLen / 2
|
|
}
|
|
for (var i = 0; i < length; ++i) {
|
|
var parsed = parseInt(string.substr(i * 2, 2), 16)
|
|
if (numberIsNaN(parsed)) return i
|
|
buf[offset + i] = parsed
|
|
}
|
|
return i
|
|
}
|
|
|
|
function utf8Write (buf, string, offset, length) {
|
|
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
|
|
}
|
|
|
|
function asciiWrite (buf, string, offset, length) {
|
|
return blitBuffer(asciiToBytes(string), buf, offset, length)
|
|
}
|
|
|
|
function latin1Write (buf, string, offset, length) {
|
|
return asciiWrite(buf, string, offset, length)
|
|
}
|
|
|
|
function base64Write (buf, string, offset, length) {
|
|
return blitBuffer(base64ToBytes(string), buf, offset, length)
|
|
}
|
|
|
|
function ucs2Write (buf, string, offset, length) {
|
|
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
|
|
}
|
|
|
|
Buffer.prototype.write = function write (string, offset, length, encoding) {
|
|
// Buffer#write(string)
|
|
if (offset === undefined) {
|
|
encoding = 'utf8'
|
|
length = this.length
|
|
offset = 0
|
|
// Buffer#write(string, encoding)
|
|
} else if (length === undefined && typeof offset === 'string') {
|
|
encoding = offset
|
|
length = this.length
|
|
offset = 0
|
|
// Buffer#write(string, offset[, length][, encoding])
|
|
} else if (isFinite(offset)) {
|
|
offset = offset >>> 0
|
|
if (isFinite(length)) {
|
|
length = length >>> 0
|
|
if (encoding === undefined) encoding = 'utf8'
|
|
} else {
|
|
encoding = length
|
|
length = undefined
|
|
}
|
|
} else {
|
|
throw new Error(
|
|
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
|
|
)
|
|
}
|
|
|
|
var remaining = this.length - offset
|
|
if (length === undefined || length > remaining) length = remaining
|
|
|
|
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
|
|
throw new RangeError('Attempt to write outside buffer bounds')
|
|
}
|
|
|
|
if (!encoding) encoding = 'utf8'
|
|
|
|
var loweredCase = false
|
|
for (;;) {
|
|
switch (encoding) {
|
|
case 'hex':
|
|
return hexWrite(this, string, offset, length)
|
|
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return utf8Write(this, string, offset, length)
|
|
|
|
case 'ascii':
|
|
return asciiWrite(this, string, offset, length)
|
|
|
|
case 'latin1':
|
|
case 'binary':
|
|
return latin1Write(this, string, offset, length)
|
|
|
|
case 'base64':
|
|
// Warning: maxLength not taken into account in base64Write
|
|
return base64Write(this, string, offset, length)
|
|
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return ucs2Write(this, string, offset, length)
|
|
|
|
default:
|
|
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
|
|
encoding = ('' + encoding).toLowerCase()
|
|
loweredCase = true
|
|
}
|
|
}
|
|
}
|
|
|
|
Buffer.prototype.toJSON = function toJSON () {
|
|
return {
|
|
type: 'Buffer',
|
|
data: Array.prototype.slice.call(this._arr || this, 0)
|
|
}
|
|
}
|
|
|
|
function base64Slice (buf, start, end) {
|
|
if (start === 0 && end === buf.length) {
|
|
return base64.fromByteArray(buf)
|
|
} else {
|
|
return base64.fromByteArray(buf.slice(start, end))
|
|
}
|
|
}
|
|
|
|
function utf8Slice (buf, start, end) {
|
|
end = Math.min(buf.length, end)
|
|
var res = []
|
|
|
|
var i = start
|
|
while (i < end) {
|
|
var firstByte = buf[i]
|
|
var codePoint = null
|
|
var bytesPerSequence = (firstByte > 0xEF) ? 4
|
|
: (firstByte > 0xDF) ? 3
|
|
: (firstByte > 0xBF) ? 2
|
|
: 1
|
|
|
|
if (i + bytesPerSequence <= end) {
|
|
var secondByte, thirdByte, fourthByte, tempCodePoint
|
|
|
|
switch (bytesPerSequence) {
|
|
case 1:
|
|
if (firstByte < 0x80) {
|
|
codePoint = firstByte
|
|
}
|
|
break
|
|
case 2:
|
|
secondByte = buf[i + 1]
|
|
if ((secondByte & 0xC0) === 0x80) {
|
|
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
|
|
if (tempCodePoint > 0x7F) {
|
|
codePoint = tempCodePoint
|
|
}
|
|
}
|
|
break
|
|
case 3:
|
|
secondByte = buf[i + 1]
|
|
thirdByte = buf[i + 2]
|
|
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
|
|
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
|
|
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
|
|
codePoint = tempCodePoint
|
|
}
|
|
}
|
|
break
|
|
case 4:
|
|
secondByte = buf[i + 1]
|
|
thirdByte = buf[i + 2]
|
|
fourthByte = buf[i + 3]
|
|
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
|
|
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
|
|
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
|
|
codePoint = tempCodePoint
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (codePoint === null) {
|
|
// we did not generate a valid codePoint so insert a
|
|
// replacement char (U+FFFD) and advance only 1 byte
|
|
codePoint = 0xFFFD
|
|
bytesPerSequence = 1
|
|
} else if (codePoint > 0xFFFF) {
|
|
// encode to utf16 (surrogate pair dance)
|
|
codePoint -= 0x10000
|
|
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
|
|
codePoint = 0xDC00 | codePoint & 0x3FF
|
|
}
|
|
|
|
res.push(codePoint)
|
|
i += bytesPerSequence
|
|
}
|
|
|
|
return decodeCodePointsArray(res)
|
|
}
|
|
|
|
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
|
|
// the lowest limit is Chrome, with 0x10000 args.
|
|
// We go 1 magnitude less, for safety
|
|
var MAX_ARGUMENTS_LENGTH = 0x1000
|
|
|
|
function decodeCodePointsArray (codePoints) {
|
|
var len = codePoints.length
|
|
if (len <= MAX_ARGUMENTS_LENGTH) {
|
|
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
|
|
}
|
|
|
|
// Decode in chunks to avoid "call stack size exceeded".
|
|
var res = ''
|
|
var i = 0
|
|
while (i < len) {
|
|
res += String.fromCharCode.apply(
|
|
String,
|
|
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
|
|
)
|
|
}
|
|
return res
|
|
}
|
|
|
|
function asciiSlice (buf, start, end) {
|
|
var ret = ''
|
|
end = Math.min(buf.length, end)
|
|
|
|
for (var i = start; i < end; ++i) {
|
|
ret += String.fromCharCode(buf[i] & 0x7F)
|
|
}
|
|
return ret
|
|
}
|
|
|
|
function latin1Slice (buf, start, end) {
|
|
var ret = ''
|
|
end = Math.min(buf.length, end)
|
|
|
|
for (var i = start; i < end; ++i) {
|
|
ret += String.fromCharCode(buf[i])
|
|
}
|
|
return ret
|
|
}
|
|
|
|
function hexSlice (buf, start, end) {
|
|
var len = buf.length
|
|
|
|
if (!start || start < 0) start = 0
|
|
if (!end || end < 0 || end > len) end = len
|
|
|
|
var out = ''
|
|
for (var i = start; i < end; ++i) {
|
|
out += hexSliceLookupTable[buf[i]]
|
|
}
|
|
return out
|
|
}
|
|
|
|
function utf16leSlice (buf, start, end) {
|
|
var bytes = buf.slice(start, end)
|
|
var res = ''
|
|
for (var i = 0; i < bytes.length; i += 2) {
|
|
res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
|
|
}
|
|
return res
|
|
}
|
|
|
|
Buffer.prototype.slice = function slice (start, end) {
|
|
var len = this.length
|
|
start = ~~start
|
|
end = end === undefined ? len : ~~end
|
|
|
|
if (start < 0) {
|
|
start += len
|
|
if (start < 0) start = 0
|
|
} else if (start > len) {
|
|
start = len
|
|
}
|
|
|
|
if (end < 0) {
|
|
end += len
|
|
if (end < 0) end = 0
|
|
} else if (end > len) {
|
|
end = len
|
|
}
|
|
|
|
if (end < start) end = start
|
|
|
|
var newBuf = this.subarray(start, end)
|
|
// Return an augmented `Uint8Array` instance
|
|
Object.setPrototypeOf(newBuf, Buffer.prototype)
|
|
|
|
return newBuf
|
|
}
|
|
|
|
/*
|
|
* Need to make sure that buffer isn't trying to write out of bounds.
|
|
*/
|
|
function checkOffset (offset, ext, length) {
|
|
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
|
|
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
|
|
}
|
|
|
|
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) checkOffset(offset, byteLength, this.length)
|
|
|
|
var val = this[offset]
|
|
var mul = 1
|
|
var i = 0
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
val += this[offset + i] * mul
|
|
}
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) {
|
|
checkOffset(offset, byteLength, this.length)
|
|
}
|
|
|
|
var val = this[offset + --byteLength]
|
|
var mul = 1
|
|
while (byteLength > 0 && (mul *= 0x100)) {
|
|
val += this[offset + --byteLength] * mul
|
|
}
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 1, this.length)
|
|
return this[offset]
|
|
}
|
|
|
|
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
return this[offset] | (this[offset + 1] << 8)
|
|
}
|
|
|
|
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
return (this[offset] << 8) | this[offset + 1]
|
|
}
|
|
|
|
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return ((this[offset]) |
|
|
(this[offset + 1] << 8) |
|
|
(this[offset + 2] << 16)) +
|
|
(this[offset + 3] * 0x1000000)
|
|
}
|
|
|
|
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return (this[offset] * 0x1000000) +
|
|
((this[offset + 1] << 16) |
|
|
(this[offset + 2] << 8) |
|
|
this[offset + 3])
|
|
}
|
|
|
|
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) checkOffset(offset, byteLength, this.length)
|
|
|
|
var val = this[offset]
|
|
var mul = 1
|
|
var i = 0
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
val += this[offset + i] * mul
|
|
}
|
|
mul *= 0x80
|
|
|
|
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) checkOffset(offset, byteLength, this.length)
|
|
|
|
var i = byteLength
|
|
var mul = 1
|
|
var val = this[offset + --i]
|
|
while (i > 0 && (mul *= 0x100)) {
|
|
val += this[offset + --i] * mul
|
|
}
|
|
mul *= 0x80
|
|
|
|
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 1, this.length)
|
|
if (!(this[offset] & 0x80)) return (this[offset])
|
|
return ((0xff - this[offset] + 1) * -1)
|
|
}
|
|
|
|
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
var val = this[offset] | (this[offset + 1] << 8)
|
|
return (val & 0x8000) ? val | 0xFFFF0000 : val
|
|
}
|
|
|
|
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
var val = this[offset + 1] | (this[offset] << 8)
|
|
return (val & 0x8000) ? val | 0xFFFF0000 : val
|
|
}
|
|
|
|
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return (this[offset]) |
|
|
(this[offset + 1] << 8) |
|
|
(this[offset + 2] << 16) |
|
|
(this[offset + 3] << 24)
|
|
}
|
|
|
|
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return (this[offset] << 24) |
|
|
(this[offset + 1] << 16) |
|
|
(this[offset + 2] << 8) |
|
|
(this[offset + 3])
|
|
}
|
|
|
|
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
return ieee754.read(this, offset, true, 23, 4)
|
|
}
|
|
|
|
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
return ieee754.read(this, offset, false, 23, 4)
|
|
}
|
|
|
|
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 8, this.length)
|
|
return ieee754.read(this, offset, true, 52, 8)
|
|
}
|
|
|
|
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 8, this.length)
|
|
return ieee754.read(this, offset, false, 52, 8)
|
|
}
|
|
|
|
function checkInt (buf, value, offset, ext, max, min) {
|
|
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
|
|
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
|
|
if (offset + ext > buf.length) throw new RangeError('Index out of range')
|
|
}
|
|
|
|
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) {
|
|
var maxBytes = Math.pow(2, 8 * byteLength) - 1
|
|
checkInt(this, value, offset, byteLength, maxBytes, 0)
|
|
}
|
|
|
|
var mul = 1
|
|
var i = 0
|
|
this[offset] = value & 0xFF
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
this[offset + i] = (value / mul) & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) {
|
|
var maxBytes = Math.pow(2, 8 * byteLength) - 1
|
|
checkInt(this, value, offset, byteLength, maxBytes, 0)
|
|
}
|
|
|
|
var i = byteLength - 1
|
|
var mul = 1
|
|
this[offset + i] = value & 0xFF
|
|
while (--i >= 0 && (mul *= 0x100)) {
|
|
this[offset + i] = (value / mul) & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
|
|
this[offset] = (value & 0xff)
|
|
return offset + 1
|
|
}
|
|
|
|
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
|
|
this[offset] = (value & 0xff)
|
|
this[offset + 1] = (value >>> 8)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
|
|
this[offset] = (value >>> 8)
|
|
this[offset + 1] = (value & 0xff)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
|
|
this[offset + 3] = (value >>> 24)
|
|
this[offset + 2] = (value >>> 16)
|
|
this[offset + 1] = (value >>> 8)
|
|
this[offset] = (value & 0xff)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
|
|
this[offset] = (value >>> 24)
|
|
this[offset + 1] = (value >>> 16)
|
|
this[offset + 2] = (value >>> 8)
|
|
this[offset + 3] = (value & 0xff)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
var limit = Math.pow(2, (8 * byteLength) - 1)
|
|
|
|
checkInt(this, value, offset, byteLength, limit - 1, -limit)
|
|
}
|
|
|
|
var i = 0
|
|
var mul = 1
|
|
var sub = 0
|
|
this[offset] = value & 0xFF
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
|
|
sub = 1
|
|
}
|
|
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
var limit = Math.pow(2, (8 * byteLength) - 1)
|
|
|
|
checkInt(this, value, offset, byteLength, limit - 1, -limit)
|
|
}
|
|
|
|
var i = byteLength - 1
|
|
var mul = 1
|
|
var sub = 0
|
|
this[offset + i] = value & 0xFF
|
|
while (--i >= 0 && (mul *= 0x100)) {
|
|
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
|
|
sub = 1
|
|
}
|
|
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
|
|
if (value < 0) value = 0xff + value + 1
|
|
this[offset] = (value & 0xff)
|
|
return offset + 1
|
|
}
|
|
|
|
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
|
|
this[offset] = (value & 0xff)
|
|
this[offset + 1] = (value >>> 8)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
|
|
this[offset] = (value >>> 8)
|
|
this[offset + 1] = (value & 0xff)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
|
|
this[offset] = (value & 0xff)
|
|
this[offset + 1] = (value >>> 8)
|
|
this[offset + 2] = (value >>> 16)
|
|
this[offset + 3] = (value >>> 24)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
|
|
if (value < 0) value = 0xffffffff + value + 1
|
|
this[offset] = (value >>> 24)
|
|
this[offset + 1] = (value >>> 16)
|
|
this[offset + 2] = (value >>> 8)
|
|
this[offset + 3] = (value & 0xff)
|
|
return offset + 4
|
|
}
|
|
|
|
function checkIEEE754 (buf, value, offset, ext, max, min) {
|
|
if (offset + ext > buf.length) throw new RangeError('Index out of range')
|
|
if (offset < 0) throw new RangeError('Index out of range')
|
|
}
|
|
|
|
function writeFloat (buf, value, offset, littleEndian, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
|
|
}
|
|
ieee754.write(buf, value, offset, littleEndian, 23, 4)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
|
|
return writeFloat(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
|
|
return writeFloat(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
function writeDouble (buf, value, offset, littleEndian, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
|
|
}
|
|
ieee754.write(buf, value, offset, littleEndian, 52, 8)
|
|
return offset + 8
|
|
}
|
|
|
|
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
|
|
return writeDouble(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
|
|
return writeDouble(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
|
|
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
|
|
if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
|
|
if (!start) start = 0
|
|
if (!end && end !== 0) end = this.length
|
|
if (targetStart >= target.length) targetStart = target.length
|
|
if (!targetStart) targetStart = 0
|
|
if (end > 0 && end < start) end = start
|
|
|
|
// Copy 0 bytes; we're done
|
|
if (end === start) return 0
|
|
if (target.length === 0 || this.length === 0) return 0
|
|
|
|
// Fatal error conditions
|
|
if (targetStart < 0) {
|
|
throw new RangeError('targetStart out of bounds')
|
|
}
|
|
if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
|
|
if (end < 0) throw new RangeError('sourceEnd out of bounds')
|
|
|
|
// Are we oob?
|
|
if (end > this.length) end = this.length
|
|
if (target.length - targetStart < end - start) {
|
|
end = target.length - targetStart + start
|
|
}
|
|
|
|
var len = end - start
|
|
|
|
if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
|
|
// Use built-in when available, missing from IE11
|
|
this.copyWithin(targetStart, start, end)
|
|
} else if (this === target && start < targetStart && targetStart < end) {
|
|
// descending copy from end
|
|
for (var i = len - 1; i >= 0; --i) {
|
|
target[i + targetStart] = this[i + start]
|
|
}
|
|
} else {
|
|
Uint8Array.prototype.set.call(
|
|
target,
|
|
this.subarray(start, end),
|
|
targetStart
|
|
)
|
|
}
|
|
|
|
return len
|
|
}
|
|
|
|
// Usage:
|
|
// buffer.fill(number[, offset[, end]])
|
|
// buffer.fill(buffer[, offset[, end]])
|
|
// buffer.fill(string[, offset[, end]][, encoding])
|
|
Buffer.prototype.fill = function fill (val, start, end, encoding) {
|
|
// Handle string cases:
|
|
if (typeof val === 'string') {
|
|
if (typeof start === 'string') {
|
|
encoding = start
|
|
start = 0
|
|
end = this.length
|
|
} else if (typeof end === 'string') {
|
|
encoding = end
|
|
end = this.length
|
|
}
|
|
if (encoding !== undefined && typeof encoding !== 'string') {
|
|
throw new TypeError('encoding must be a string')
|
|
}
|
|
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
|
|
throw new TypeError('Unknown encoding: ' + encoding)
|
|
}
|
|
if (val.length === 1) {
|
|
var code = val.charCodeAt(0)
|
|
if ((encoding === 'utf8' && code < 128) ||
|
|
encoding === 'latin1') {
|
|
// Fast path: If `val` fits into a single byte, use that numeric value.
|
|
val = code
|
|
}
|
|
}
|
|
} else if (typeof val === 'number') {
|
|
val = val & 255
|
|
} else if (typeof val === 'boolean') {
|
|
val = Number(val)
|
|
}
|
|
|
|
// Invalid ranges are not set to a default, so can range check early.
|
|
if (start < 0 || this.length < start || this.length < end) {
|
|
throw new RangeError('Out of range index')
|
|
}
|
|
|
|
if (end <= start) {
|
|
return this
|
|
}
|
|
|
|
start = start >>> 0
|
|
end = end === undefined ? this.length : end >>> 0
|
|
|
|
if (!val) val = 0
|
|
|
|
var i
|
|
if (typeof val === 'number') {
|
|
for (i = start; i < end; ++i) {
|
|
this[i] = val
|
|
}
|
|
} else {
|
|
var bytes = Buffer.isBuffer(val)
|
|
? val
|
|
: Buffer.from(val, encoding)
|
|
var len = bytes.length
|
|
if (len === 0) {
|
|
throw new TypeError('The value "' + val +
|
|
'" is invalid for argument "value"')
|
|
}
|
|
for (i = 0; i < end - start; ++i) {
|
|
this[i + start] = bytes[i % len]
|
|
}
|
|
}
|
|
|
|
return this
|
|
}
|
|
|
|
// HELPER FUNCTIONS
|
|
// ================
|
|
|
|
var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
|
|
|
|
function base64clean (str) {
|
|
// Node takes equal signs as end of the Base64 encoding
|
|
str = str.split('=')[0]
|
|
// Node strips out invalid characters like \n and \t from the string, base64-js does not
|
|
str = str.trim().replace(INVALID_BASE64_RE, '')
|
|
// Node converts strings with length < 2 to ''
|
|
if (str.length < 2) return ''
|
|
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
|
|
while (str.length % 4 !== 0) {
|
|
str = str + '='
|
|
}
|
|
return str
|
|
}
|
|
|
|
function utf8ToBytes (string, units) {
|
|
units = units || Infinity
|
|
var codePoint
|
|
var length = string.length
|
|
var leadSurrogate = null
|
|
var bytes = []
|
|
|
|
for (var i = 0; i < length; ++i) {
|
|
codePoint = string.charCodeAt(i)
|
|
|
|
// is surrogate component
|
|
if (codePoint > 0xD7FF && codePoint < 0xE000) {
|
|
// last char was a lead
|
|
if (!leadSurrogate) {
|
|
// no lead yet
|
|
if (codePoint > 0xDBFF) {
|
|
// unexpected trail
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
continue
|
|
} else if (i + 1 === length) {
|
|
// unpaired lead
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
continue
|
|
}
|
|
|
|
// valid lead
|
|
leadSurrogate = codePoint
|
|
|
|
continue
|
|
}
|
|
|
|
// 2 leads in a row
|
|
if (codePoint < 0xDC00) {
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
leadSurrogate = codePoint
|
|
continue
|
|
}
|
|
|
|
// valid surrogate pair
|
|
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
|
|
} else if (leadSurrogate) {
|
|
// valid bmp char, but last char was a lead
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
}
|
|
|
|
leadSurrogate = null
|
|
|
|
// encode utf8
|
|
if (codePoint < 0x80) {
|
|
if ((units -= 1) < 0) break
|
|
bytes.push(codePoint)
|
|
} else if (codePoint < 0x800) {
|
|
if ((units -= 2) < 0) break
|
|
bytes.push(
|
|
codePoint >> 0x6 | 0xC0,
|
|
codePoint & 0x3F | 0x80
|
|
)
|
|
} else if (codePoint < 0x10000) {
|
|
if ((units -= 3) < 0) break
|
|
bytes.push(
|
|
codePoint >> 0xC | 0xE0,
|
|
codePoint >> 0x6 & 0x3F | 0x80,
|
|
codePoint & 0x3F | 0x80
|
|
)
|
|
} else if (codePoint < 0x110000) {
|
|
if ((units -= 4) < 0) break
|
|
bytes.push(
|
|
codePoint >> 0x12 | 0xF0,
|
|
codePoint >> 0xC & 0x3F | 0x80,
|
|
codePoint >> 0x6 & 0x3F | 0x80,
|
|
codePoint & 0x3F | 0x80
|
|
)
|
|
} else {
|
|
throw new Error('Invalid code point')
|
|
}
|
|
}
|
|
|
|
return bytes
|
|
}
|
|
|
|
function asciiToBytes (str) {
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; ++i) {
|
|
// Node's code seems to be doing this and not & 0x7F..
|
|
byteArray.push(str.charCodeAt(i) & 0xFF)
|
|
}
|
|
return byteArray
|
|
}
|
|
|
|
function utf16leToBytes (str, units) {
|
|
var c, hi, lo
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; ++i) {
|
|
if ((units -= 2) < 0) break
|
|
|
|
c = str.charCodeAt(i)
|
|
hi = c >> 8
|
|
lo = c % 256
|
|
byteArray.push(lo)
|
|
byteArray.push(hi)
|
|
}
|
|
|
|
return byteArray
|
|
}
|
|
|
|
function base64ToBytes (str) {
|
|
return base64.toByteArray(base64clean(str))
|
|
}
|
|
|
|
function blitBuffer (src, dst, offset, length) {
|
|
for (var i = 0; i < length; ++i) {
|
|
if ((i + offset >= dst.length) || (i >= src.length)) break
|
|
dst[i + offset] = src[i]
|
|
}
|
|
return i
|
|
}
|
|
|
|
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
|
|
// the `instanceof` check but they should be treated as of that type.
|
|
// See: https://github.com/feross/buffer/issues/166
|
|
function isInstance (obj, type) {
|
|
return obj instanceof type ||
|
|
(obj != null && obj.constructor != null && obj.constructor.name != null &&
|
|
obj.constructor.name === type.name)
|
|
}
|
|
function numberIsNaN (obj) {
|
|
// For IE11 support
|
|
return obj !== obj // eslint-disable-line no-self-compare
|
|
}
|
|
|
|
// Create lookup table for `toString('hex')`
|
|
// See: https://github.com/feross/buffer/issues/219
|
|
var hexSliceLookupTable = (function () {
|
|
var alphabet = '0123456789abcdef'
|
|
var table = new Array(256)
|
|
for (var i = 0; i < 16; ++i) {
|
|
var i16 = i * 16
|
|
for (var j = 0; j < 16; ++j) {
|
|
table[i16 + j] = alphabet[i] + alphabet[j]
|
|
}
|
|
}
|
|
return table
|
|
})()
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
},{"base64-js":14,"buffer":"buffer","ieee754":15}],"wkx":[function(require,module,exports){
|
|
exports.Types = require('./types');
|
|
exports.Geometry = require('./geometry');
|
|
exports.Point = require('./point');
|
|
exports.LineString = require('./linestring');
|
|
exports.Polygon = require('./polygon');
|
|
exports.MultiPoint = require('./multipoint');
|
|
exports.MultiLineString = require('./multilinestring');
|
|
exports.MultiPolygon = require('./multipolygon');
|
|
exports.GeometryCollection = require('./geometrycollection');
|
|
},{"./geometry":3,"./geometrycollection":4,"./linestring":5,"./multilinestring":6,"./multipoint":7,"./multipolygon":8,"./point":9,"./polygon":10,"./types":11}]},{},["wkx"]);
|