var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && !!process.versions.node); var Buffer_from = /*::(*/function(){}/*:: :any)*/; if(typeof Buffer !== 'undefined') { var nbfs = !Buffer.from; if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; } Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer); // $FlowIgnore if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); }; // $FlowIgnore if(!Buffer.allocUnsafe) Buffer.allocUnsafe = function(n) { return new Buffer(n); }; } function new_raw_buf(len/*:number*/) { /* jshint -W056 */ return has_buf ? Buffer.alloc(len) : typeof Uint8Array != "undefined" ? new Uint8Array(len) : new Array(len); /* jshint +W056 */ } function new_unsafe_buf(len/*:number*/) { /* jshint -W056 */ return has_buf ? Buffer.allocUnsafe(len) : typeof Uint8Array != "undefined" ? new Uint8Array(len) : new Array(len); /* jshint +W056 */ } var s2a = function s2a(s/*:string*/)/*:any*/ { if(has_buf) return Buffer_from(s, "binary"); return s.split("").map(function(x/*:string*/)/*:number*/{ return x.charCodeAt(0) & 0xff; }); }; function s2ab(s/*:string*/)/*:any*/ { if(typeof ArrayBuffer === 'undefined') return s2a(s); var buf = new ArrayBuffer(s.length), view = new Uint8Array(buf); for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF; return buf; } function a2s(data/*:any*/)/*:string*/ { if(Array.isArray(data)) return data.map(function(c) { return String.fromCharCode(c); }).join(""); var o/*:Array*/ = []; for(var i = 0; i < data.length; ++i) o[i] = String.fromCharCode(data[i]); return o.join(""); } function a2u(data/*:Array*/)/*:Uint8Array*/ { if(typeof Uint8Array === 'undefined') throw new Error("Unsupported"); return new Uint8Array(data); } function ab2a(data/*:ArrayBuffer|Uint8Array*/)/*:Array*/ { if(typeof ArrayBuffer == 'undefined') throw new Error("Unsupported"); if(data instanceof ArrayBuffer) return ab2a(new Uint8Array(data)); /*:: if(data instanceof ArrayBuffer) throw new Error("unreachable"); */ var o = new Array(data.length); for(var i = 0; i < data.length; ++i) o[i] = data[i]; return o; } function utf8decode(content/*:string*/) { var out = [], widx = 0, L = content.length + 250; var o = new_raw_buf(content.length + 255); for(var ridx = 0; ridx < content.length; ++ridx) { var c = content.charCodeAt(ridx); if(c < 0x80) o[widx++] = c; else if(c < 0x800) { o[widx++] = (192|((c>>6)&31)); o[widx++] = (128|(c&63)); } else if(c >= 0xD800 && c < 0xE000) { c = (c&1023)+64; var d = content.charCodeAt(++ridx)&1023; o[widx++] = (240|((c>>8)&7)); o[widx++] = (128|((c>>2)&63)); o[widx++] = (128|((d>>6)&15)|((c&3)<<4)); o[widx++] = (128|(d&63)); } else { o[widx++] = (224|((c>>12)&15)); o[widx++] = (128|((c>>6)&63)); o[widx++] = (128|(c&63)); } if(widx > L) { out.push(o.slice(0, widx)); widx = 0; o = new_raw_buf(65535); L = 65530; } } out.push(o.slice(0, widx)); return bconcat(out); } var bconcat = function(bufs) { if(typeof Uint8Array !== "undefined") { var i = 0, maxlen = 0; for(i = 0; i < bufs.length; ++i) maxlen += bufs[i].length; var o = new Uint8Array(maxlen); var len = 0; for(i = 0, maxlen = 0; i < bufs.length; maxlen += len, ++i) { len = bufs[i].length; if(bufs[i] instanceof Uint8Array) o.set(bufs[i], maxlen); else if(typeof bufs[i] == "string") { throw "wtf"; } else o.set(new Uint8Array(bufs[i]), maxlen); } return o; } return [].concat.apply([], bufs.map(function(buf) { return Array.isArray(buf) ? buf : [].slice.call(buf); })); }; var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;