better-mock/src/utils/string-to-array.ts

Forked from Mockjs. Generate random data & Intercept ajax request. Support miniprogram.

/** Used to compose unicode character classes. */
const rsAstralRange = '\\ud800-\\udfff'
const rsComboMarksRange = '\\u0300-\\u036f'
const reComboHalfMarksRange = '\\ufe20-\\ufe2f'
const rsComboSymbolsRange = '\\u20d0-\\u20ff'
const rsComboMarksExtendedRange = '\\u1ab0-\\u1aff'
const rsComboMarksSupplementRange = '\\u1dc0-\\u1dff'
const rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange + rsComboMarksExtendedRange + rsComboMarksSupplementRange
const rsVarRange = '\\ufe0e\\ufe0f'

/** Used to compose unicode capture groups. */
const rsZWJ = '\\u200d'
const rsAstral = `[${rsAstralRange}]`
const rsCombo = `[${rsComboRange}]`
const rsFitz = '\\ud83c[\\udffb-\\udfff]'
const rsModifier = `(?:${rsCombo}|${rsFitz})`
const rsNonAstral = `[^${rsAstralRange}]`
const rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}'
const rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]'

/** Used to compose unicode regexes. */
const reOptMod = `${rsModifier}?`
const rsOptVar = `[${rsVarRange}]?`
const rsOptJoin = `(?:${rsZWJ}(?:${[rsNonAstral, rsRegional, rsSurrPair].join('|')})${rsOptVar + reOptMod})*`
const rsSeq = rsOptVar + reOptMod + rsOptJoin
const rsNonAstralCombo = `${rsNonAstral}${rsCombo}?`
const rsSymbol = `(?:${[rsNonAstralCombo, rsCombo, rsRegional, rsSurrPair, rsAstral].join('|')})`

/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
const reUnicode = RegExp(`${rsFitz}(?=${rsFitz})|${rsSymbol + rsSeq}`, 'g')

/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
const reHasUnicode = RegExp(`[${rsZWJ + rsAstralRange + rsComboRange + rsVarRange}]`)

/**
 * Checks if `string` contains Unicode symbols.
 *
 * @private
 * @param {string} string The string to inspect.
 * @returns {boolean} Returns `true` if a symbol is found, else `false`.
 */
function hasUnicode (string) {
  return reHasUnicode.test(string)
}

/**
 * Converts an ASCII `string` to an array.
 *
 * @private
 * @param {string} string The string to convert.
 * @returns {Array} Returns the converted array.
 */
function asciiToArray (string) {
  return string.split('')
}

/**
* Converts a Unicode `string` to an array.
*
* @private
* @param {string} string The string to convert.
* @returns {Array} Returns the converted array.
*/
function unicodeToArray (string) {
  return string.match(reUnicode) || []
}

/**
 * Converts `string` to an array.
 *
 * @private
 * @param {string} string The string to convert.
 * @returns {Array} Returns the converted array.
 */
/* istanbul ignore next */
export default function stringToArray (string) {
  return hasUnicode(string)
    ? unicodeToArray(string)
    : asciiToArray(string)
}