50 lines
972 B
Plaintext
50 lines
972 B
Plaintext
'use strict'
|
|
|
|
module.exports = splitPropertyKey
|
|
|
|
/**
|
|
* Splits the property key delimited by a dot character but not when it is preceded
|
|
* by a backslash.
|
|
*
|
|
* @param {string} key A string identifying the property.
|
|
*
|
|
* @returns {string[]} Returns a list of string containing each delimited property.
|
|
* e.g. `'prop2\.domain\.corp.prop2'` should return [ 'prop2.domain.com', 'prop2' ]
|
|
*/
|
|
function splitPropertyKey (key) {
|
|
const result = []
|
|
let backslash = false
|
|
let segment = ''
|
|
|
|
for (let i = 0; i < key.length; i++) {
|
|
const c = key.charAt(i)
|
|
|
|
if (c === '\\') {
|
|
backslash = true
|
|
continue
|
|
}
|
|
|
|
if (backslash) {
|
|
backslash = false
|
|
segment += c
|
|
continue
|
|
}
|
|
|
|
/* Non-escaped dot, push to result */
|
|
if (c === '.') {
|
|
result.push(segment)
|
|
segment = ''
|
|
continue
|
|
}
|
|
|
|
segment += c
|
|
}
|
|
|
|
/* Push last entry to result */
|
|
if (segment.length) {
|
|
result.push(segment)
|
|
}
|
|
|
|
return result
|
|
}
|