| 1 | 'use strict';
|
| 2 |
|
| 3 | var stringifyNumber = require('../../stringify/stringifyNumber.js');
|
| 4 |
|
| 5 | const intIdentify = (value) => typeof value === 'bigint' || Number.isInteger(value);
|
| 6 | function intResolve(str, offset, radix, { intAsBigInt }) {
|
| 7 | const sign = str[0];
|
| 8 | if (sign === '-' || sign === '+')
|
| 9 | offset += 1;
|
| 10 | str = str.substring(offset).replace(/_/g, '');
|
| 11 | if (intAsBigInt) {
|
| 12 | switch (radix) {
|
| 13 | case 2:
|
| 14 | str = `0b${str}`;
|
| 15 | break;
|
| 16 | case 8:
|
| 17 | str = `0o${str}`;
|
| 18 | break;
|
| 19 | case 16:
|
| 20 | str = `0x${str}`;
|
| 21 | break;
|
| 22 | }
|
| 23 | const n = BigInt(str);
|
| 24 | return sign === '-' ? BigInt(-1) * n : n;
|
| 25 | }
|
| 26 | const n = parseInt(str, radix);
|
| 27 | return sign === '-' ? -1 * n : n;
|
| 28 | }
|
| 29 | function intStringify(node, radix, prefix) {
|
| 30 | const { value } = node;
|
| 31 | if (intIdentify(value)) {
|
| 32 | const str = value.toString(radix);
|
| 33 | return value < 0 ? '-' + prefix + str.substr(1) : prefix + str;
|
| 34 | }
|
| 35 | return stringifyNumber.stringifyNumber(node);
|
| 36 | }
|
| 37 | const intBin = {
|
| 38 | identify: intIdentify,
|
| 39 | default: true,
|
| 40 | tag: 'tag:yaml.org,2002:int',
|
| 41 | format: 'BIN',
|
| 42 | test: /^[-+]?0b[0-1_]+$/,
|
| 43 | resolve: (str, _onError, opt) => intResolve(str, 2, 2, opt),
|
| 44 | stringify: node => intStringify(node, 2, '0b')
|
| 45 | };
|
| 46 | const intOct = {
|
| 47 | identify: intIdentify,
|
| 48 | default: true,
|
| 49 | tag: 'tag:yaml.org,2002:int',
|
| 50 | format: 'OCT',
|
| 51 | test: /^[-+]?0[0-7_]+$/,
|
| 52 | resolve: (str, _onError, opt) => intResolve(str, 1, 8, opt),
|
| 53 | stringify: node => intStringify(node, 8, '0')
|
| 54 | };
|
| 55 | const int = {
|
| 56 | identify: intIdentify,
|
| 57 | default: true,
|
| 58 | tag: 'tag:yaml.org,2002:int',
|
| 59 | test: /^[-+]?[0-9][0-9_]*$/,
|
| 60 | resolve: (str, _onError, opt) => intResolve(str, 0, 10, opt),
|
| 61 | stringify: stringifyNumber.stringifyNumber
|
| 62 | };
|
| 63 | const intHex = {
|
| 64 | identify: intIdentify,
|
| 65 | default: true,
|
| 66 | tag: 'tag:yaml.org,2002:int',
|
| 67 | format: 'HEX',
|
| 68 | test: /^[-+]?0x[0-9a-fA-F_]+$/,
|
| 69 | resolve: (str, _onError, opt) => intResolve(str, 2, 16, opt),
|
| 70 | stringify: node => intStringify(node, 16, '0x')
|
| 71 | };
|
| 72 |
|
| 73 | exports.int = int;
|
| 74 | exports.intBin = intBin;
|
| 75 | exports.intHex = intHex;
|
| 76 | exports.intOct = intOct;
|