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							63 lines
						
					
					
						
							2.1 KiB
						
					
					
				
			
		
		
	
	
							63 lines
						
					
					
						
							2.1 KiB
						
					
					
				| import Metadata from '../metadata.js'
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| import matchesEntirely from './matchesEntirely.js'
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| import extractNationalNumber from './extractNationalNumber.js'
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| import checkNumberLength from './checkNumberLength.js'
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| import getCountryCallingCode from '../getCountryCallingCode.js'
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| 
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| /**
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|  * Sometimes some people incorrectly input international phone numbers
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|  * without the leading `+`. This function corrects such input.
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|  * @param  {string} number — Phone number digits.
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|  * @param  {string?} country
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|  * @param  {string?} callingCode
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|  * @param  {object} metadata
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|  * @return {object} `{ countryCallingCode: string?, number: string }`.
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|  */
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| export default function extractCountryCallingCodeFromInternationalNumberWithoutPlusSign(
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| 	number,
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| 	country,
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| 	callingCode,
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| 	metadata
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| ) {
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| 	const countryCallingCode = country ? getCountryCallingCode(country, metadata) : callingCode
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| 	if (number.indexOf(countryCallingCode) === 0) {
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| 		metadata = new Metadata(metadata)
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| 		metadata.selectNumberingPlan(country, callingCode)
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| 		const possibleShorterNumber = number.slice(countryCallingCode.length)
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| 		const {
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| 			nationalNumber: possibleShorterNationalNumber,
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| 		} = extractNationalNumber(
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| 			possibleShorterNumber,
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| 			metadata
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| 		)
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| 		const {
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| 			nationalNumber
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| 		} = extractNationalNumber(
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| 			number,
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| 			metadata
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| 		)
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| 		// If the number was not valid before but is valid now,
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| 		// or if it was too long before, we consider the number
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| 		// with the country calling code stripped to be a better result
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| 		// and keep that instead.
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| 		// For example, in Germany (+49), `49` is a valid area code,
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| 		// so if a number starts with `49`, it could be both a valid
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| 		// national German number or an international number without
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| 		// a leading `+`.
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| 		if (
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| 			(
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| 				!matchesEntirely(nationalNumber, metadata.nationalNumberPattern())
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| 				&&
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| 				matchesEntirely(possibleShorterNationalNumber, metadata.nationalNumberPattern())
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| 			)
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| 			||
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| 			checkNumberLength(nationalNumber, metadata) === 'TOO_LONG'
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| 		) {
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| 			return {
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| 				countryCallingCode,
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| 				number: possibleShorterNumber
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| 			}
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| 		}
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| 	}
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| 	return { number }
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| } |