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- 'use strict';
- var stringifyNumber = require('../../stringify/stringifyNumber.js');
- const intIdentify = (value) => typeof value === 'bigint' || Number.isInteger(value);
- function intResolve(str, offset, radix, { intAsBigInt }) {
- const sign = str[0];
- if (sign === '-' || sign === '+')
- offset += 1;
- str = str.substring(offset).replace(/_/g, '');
- if (intAsBigInt) {
- switch (radix) {
- case 2:
- str = `0b${str}`;
- break;
- case 8:
- str = `0o${str}`;
- break;
- case 16:
- str = `0x${str}`;
- break;
- }
- const n = BigInt(str);
- return sign === '-' ? BigInt(-1) * n : n;
- }
- const n = parseInt(str, radix);
- return sign === '-' ? -1 * n : n;
- }
- function intStringify(node, radix, prefix) {
- const { value } = node;
- if (intIdentify(value)) {
- const str = value.toString(radix);
- return value < 0 ? '-' + prefix + str.substr(1) : prefix + str;
- }
- return stringifyNumber.stringifyNumber(node);
- }
- const intBin = {
- identify: intIdentify,
- default: true,
- tag: 'tag:yaml.org,2002:int',
- format: 'BIN',
- test: /^[-+]?0b[0-1_]+$/,
- resolve: (str, _onError, opt) => intResolve(str, 2, 2, opt),
- stringify: node => intStringify(node, 2, '0b')
- };
- const intOct = {
- identify: intIdentify,
- default: true,
- tag: 'tag:yaml.org,2002:int',
- format: 'OCT',
- test: /^[-+]?0[0-7_]+$/,
- resolve: (str, _onError, opt) => intResolve(str, 1, 8, opt),
- stringify: node => intStringify(node, 8, '0')
- };
- const int = {
- identify: intIdentify,
- default: true,
- tag: 'tag:yaml.org,2002:int',
- test: /^[-+]?[0-9][0-9_]*$/,
- resolve: (str, _onError, opt) => intResolve(str, 0, 10, opt),
- stringify: stringifyNumber.stringifyNumber
- };
- const intHex = {
- identify: intIdentify,
- default: true,
- tag: 'tag:yaml.org,2002:int',
- format: 'HEX',
- test: /^[-+]?0x[0-9a-fA-F_]+$/,
- resolve: (str, _onError, opt) => intResolve(str, 2, 16, opt),
- stringify: node => intStringify(node, 16, '0x')
- };
- exports.int = int;
- exports.intBin = intBin;
- exports.intHex = intHex;
- exports.intOct = intOct;
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