deno.land / x / sheetjs@v0.18.3 / modules / src / util.ts

نووسراو ببینە
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
/*! sheetjs (C) 2013-present SheetJS -- http://sheetjs.com */var u8_to_dataview = (array: Uint8Array): DataView => new DataView(array.buffer, array.byteOffset, array.byteLength);export { u8_to_dataview };
var u8str = (u8: Uint8Array): string => /* Buffer.isBuffer(u8) ? u8.toString() :*/ typeof TextDecoder != "undefined" ? new TextDecoder().decode(u8) : utf8read(a2s(u8));export { u8str };
var u8concat = (u8a: Uint8Array[]): Uint8Array => { var len = u8a.reduce((acc: number, x: Uint8Array) => acc + x.length, 0); var out = new Uint8Array(len); var off = 0; u8a.forEach(u8 => { out.set(u8, off); off += u8.length; }); return out;};export { u8concat };
var indent = (str: string, depth: number /* = 1 */): string => str.split(/\n/g).map(x => x && " ".repeat(depth) + x).join("\n");export { indent };
function u8indexOf(u8: Uint8Array, data: string | number | Uint8Array, byteOffset?: number): number { //if(Buffer.isBuffer(u8)) return u8.indexOf(data, byteOffset); if(typeof data == "number") return u8.indexOf(data, byteOffset); var l = byteOffset; if(typeof data == "string") { outs: while((l = u8.indexOf(data.charCodeAt(0), l)) > -1) { ++l; for(var j = 1; j < data.length; ++j) if(u8[l+j-1] != data.charCodeAt(j)) continue outs; return l - 1; } } else { outb: while((l = u8.indexOf(data[0], l)) > -1) { ++l; for(var j = 1; j < data.length; ++j) if(u8[l+j-1] != data[j]) continue outb; return l - 1; } } return -1;}export { u8indexOf };
/* Hopefully one day this will be added to the language */var popcnt = (x: number): number => { x -= ((x >> 1) & 0x55555555); x = (x & 0x33333333) + ((x >> 2) & 0x33333333); return (((x + (x >> 4)) & 0x0F0F0F0F) * 0x01010101) >>> 24;};export { popcnt };
/* Used in the modern cell storage */var readDecimal128LE = (buf: Uint8Array, offset: number): number => { var exp = ((buf[offset + 15] & 0x7F) << 7) | (buf[offset + 14] >> 1); var mantissa = buf[offset + 14] & 1; for(var j = offset + 13; j >= offset; --j) mantissa = mantissa * 256 + buf[j]; return ((buf[offset+15] & 0x80) ? -mantissa : mantissa) * Math.pow(10, exp - 0x1820);};export { readDecimal128LE };
sheetjs

Version Info

Tagged at
2 years ago