/opt/canhelp/node_modules/autoprefixer/lib
Edit: /opt/canhelp/node_modules/autoprefixer/lib/utils.js (2021B)
let { list } = require('postcss')
/**
* Throw special error, to tell beniary,
* that this error is from Autoprefixer.
*/
module.exports.error = function (text) {
let err = new Error(text)
err.autoprefixer = true
throw err
}
/**
* Return array, that doesn’t contain duplicates.
*/
module.exports.uniq = function (array) {
return [...new Set(array)]
}
/**
* Return "-webkit-" on "-webkit- old"
*/
module.exports.removeNote = function (string) {
if (!string.includes(' ')) {
return string
}
return string.split(' ')[0]
}
/**
* Escape RegExp symbols
*/
module.exports.escapeRegexp = function (string) {
return string.replace(/[$()*+-.?[\\\]^{|}]/g, '\\$&')
}
/**
* Return regexp to check, that CSS string contain word
*/
module.exports.regexp = function (word, escape = true) {
if (escape) {
word = this.escapeRegexp(word)
}
return new RegExp(`(^|[\\s,(])(${word}($|[\\s(,]))`, 'gi')
}
/**
* Change comma list
*/
module.exports.editList = function (value, callback) {
let origin = list.comma(value)
let changed = callback(origin, [])
if (origin === changed) {
return value
}
let join = value.match(/,\s*/)
join = join ? join[0] : ', '
return changed.join(join)
}
/**
* Split the selector into parts.
* It returns 3 level deep array because selectors can be comma
* separated (1), space separated (2), and combined (3)
* @param {String} selector selector string
* @return {Array
>} 3 level deep array of split selector
* @see utils.test.js for examples
*/
module.exports.splitSelector = function (selector) {
return list.comma(selector).map(i => {
return list.space(i).map(k => {
return k.split(/(?=\.|#)/g)
})
})
}
/**
* Return true if a given value only contains numbers.
* @param {*} value
* @returns {boolean}
*/
module.exports.isPureNumber = function (value) {
if (typeof value === 'number') {
return true
}
if (typeof value === 'string') {
return /^[0-9]+$/.test(value)
}
return false
}