/opt/canhelp/node_modules/autoprefixer/lib
Edit: /opt/canhelp/node_modules/autoprefixer/lib/brackets.js (849B)
function last(array) {
return array[array.length - 1]
}
let brackets = {
/**
* Parse string to nodes tree
*/
parse(str) {
let current = ['']
let stack = [current]
for (let sym of str) {
if (sym === '(') {
current = ['']
last(stack).push(current)
stack.push(current)
continue
}
if (sym === ')') {
stack.pop()
current = last(stack)
current.push('')
continue
}
current[current.length - 1] += sym
}
return stack[0]
},
/**
* Generate output string by nodes tree
*/
stringify(ast) {
let result = ''
for (let i of ast) {
if (typeof i === 'object') {
result += `(${brackets.stringify(i)})`
continue
}
result += i
}
return result
}
}
module.exports = brackets