/**
* Reduce a CSS selector to be without any pseudo class parts.
* For example, from `a:hover` return `a`. And from `input::-moz-focus-inner`
* to `input`.
* Also, more advanced ones like `a[href^="javascript:"]:after` to
* `a[href^="javascript:"]`.
* The last example works too if the input was `a[href^='javascript:']:after`
* instead (using ' instead of ").
*
* @param {string} selector
* @return {string}
*/
const reduceCSSSelector = selector => {
return selector.split(
/:(?=([^"'\\]*(\\.|["']([^"'\\]*\\.)*[^"'\\]*['"]))*[^"']*$)/g
)[0]
}
/**
* Remove the ' and/or " at the beginning and end of a string if it has it.
* @param {string} string
* @return {string}
*/
const unquoteString = string => {
const first = string.charAt(0)
const last = string.charAt(string.length - 1)
if (first === last && (first === '"' || first === "'")) {
return string.substring(1, string.length - 1)
}
return string
}
module.exports = { reduceCSSSelector, unquoteString }
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