You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
30 lines
1.0 KiB
JavaScript
30 lines
1.0 KiB
JavaScript
import Metadata from '../metadata.js'
|
|
import { VALID_DIGITS } from '../constants.js'
|
|
|
|
const CAPTURING_DIGIT_PATTERN = new RegExp('([' + VALID_DIGITS + '])')
|
|
|
|
export default function stripIddPrefix(number, country, callingCode, metadata) {
|
|
if (!country) {
|
|
return
|
|
}
|
|
// Check if the number is IDD-prefixed.
|
|
const countryMetadata = new Metadata(metadata)
|
|
countryMetadata.selectNumberingPlan(country, callingCode)
|
|
const IDDPrefixPattern = new RegExp(countryMetadata.IDDPrefix())
|
|
if (number.search(IDDPrefixPattern) !== 0) {
|
|
return
|
|
}
|
|
// Strip IDD prefix.
|
|
number = number.slice(number.match(IDDPrefixPattern)[0].length)
|
|
// If there're any digits after an IDD prefix,
|
|
// then those digits are a country calling code.
|
|
// Since no country code starts with a `0`,
|
|
// the code below validates that the next digit (if present) is not `0`.
|
|
const matchedGroups = number.match(CAPTURING_DIGIT_PATTERN)
|
|
if (matchedGroups && matchedGroups[1] != null && matchedGroups[1].length > 0) {
|
|
if (matchedGroups[1] === '0') {
|
|
return
|
|
}
|
|
}
|
|
return number
|
|
} |