basant307/AI_Governance_Project

1'use strict';2 3const path = require('path');4const win32 = process.platform === 'win32';5const {6  REGEX_BACKSLASH,7  REGEX_REMOVE_BACKSLASH,8  REGEX_SPECIAL_CHARS,9  REGEX_SPECIAL_CHARS_GLOBAL10} = require('./constants');11 12exports.isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);13exports.hasRegexChars = str => REGEX_SPECIAL_CHARS.test(str);14exports.isRegexChar = str => str.length === 1 && exports.hasRegexChars(str);15exports.escapeRegex = str => str.replace(REGEX_SPECIAL_CHARS_GLOBAL, '\\$1');16exports.toPosixSlashes = str => str.replace(REGEX_BACKSLASH, '/');17 18exports.removeBackslashes = str => {19  return str.replace(REGEX_REMOVE_BACKSLASH, match => {20    return match === '\\' ? '' : match;21  });22};23 24exports.supportsLookbehinds = () => {25  const segs = process.version.slice(1).split('.').map(Number);26  if (segs.length === 3 && segs[0] >= 9 || (segs[0] === 8 && segs[1] >= 10)) {27    return true;28  }29  return false;30};31 32exports.isWindows = options => {33  if (options && typeof options.windows === 'boolean') {34    return options.windows;35  }36  return win32 === true || path.sep === '\\';37};38 39exports.escapeLast = (input, char, lastIdx) => {40  const idx = input.lastIndexOf(char, lastIdx);41  if (idx === -1) return input;42  if (input[idx - 1] === '\\') return exports.escapeLast(input, char, idx - 1);43  return `${input.slice(0, idx)}\\${input.slice(idx)}`;44};45 46exports.removePrefix = (input, state = {}) => {47  let output = input;48  if (output.startsWith('./')) {49    output = output.slice(2);50    state.prefix = './';51  }52  return output;53};54 55exports.wrapOutput = (input, state = {}, options = {}) => {56  const prepend = options.contains ? '' : '^';57  const append = options.contains ? '' : '$';58 59  let output = `${prepend}(?:${input})${append}`;60  if (state.negated === true) {61    output = `(?:^(?!${output}).*$)`;62  }63  return output;64};65