forked from sheetjs/sheetjs
SheetJS
c0b4895881
- node 10 `Buffer` deprecation workaround (with dependency update) - Angular 6 global deprecation workaround (fixes #1088 h/t @cristhiank) - BIFF8 write standard and custom properties - TH elements in HTML string (fixes #1090 h/t @GigiSan) - planmaker export quirks
50 lines
1.8 KiB
JavaScript
50 lines
1.8 KiB
JavaScript
var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && process.versions.node);
|
|
|
|
if(typeof Buffer !== 'undefined') {
|
|
// $FlowIgnore
|
|
if(!Buffer.from) Buffer.from = function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); };
|
|
// $FlowIgnore
|
|
if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); };
|
|
}
|
|
|
|
function new_raw_buf(len/*:number*/) {
|
|
/* jshint -W056 */
|
|
return has_buf ? Buffer.alloc(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(_chr).join("");
|
|
var o/*:Array<string>*/ = []; for(var i = 0; i < data.length; ++i) o[i] = _chr(data[i]); return o.join("");
|
|
}
|
|
|
|
function a2u(data/*:Array<number>*/)/*:Uint8Array*/ {
|
|
if(typeof Uint8Array === 'undefined') throw new Error("Unsupported");
|
|
return new Uint8Array(data);
|
|
}
|
|
|
|
function ab2a(data/*:ArrayBuffer|Uint8Array*/)/*:Array<number>*/ {
|
|
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;
|
|
}
|
|
|
|
var bconcat = function(bufs) { return [].concat.apply([], bufs); };
|
|
|
|
var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;
|