2 * Copyright (C) 2009 The Libphonenumber Authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.i18n.phonenumbers;
19 import com.google.i18n.phonenumbers.Phonemetadata.NumberFormat;
20 import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadata;
21 import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadataCollection;
22 import com.google.i18n.phonenumbers.Phonemetadata.PhoneNumberDesc;
23 import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
24 import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber.CountryCodeSource;
26 import java.io.IOException;
27 import java.io.InputStream;
28 import java.io.ObjectInputStream;
29 import java.util.ArrayList;
30 import java.util.Arrays;
31 import java.util.Collections;
32 import java.util.HashMap;
33 import java.util.HashSet;
34 import java.util.Iterator;
35 import java.util.List;
38 import java.util.logging.Level;
39 import java.util.logging.Logger;
40 import java.util.regex.Matcher;
41 import java.util.regex.Pattern;
44 * Utility for international phone numbers. Functionality includes formatting, parsing and
47 * <p>If you use this library, and want to be notified about important changes, please sign up to
48 * our <a href="http://groups.google.com/group/libphonenumber-discuss/about">mailing list</a>.
50 * NOTE: A lot of methods in this class require Region Code strings. These must be provided using
51 * ISO 3166-1 two-letter country-code format. These should be in upper-case. The list of the codes
53 * http://www.iso.org/iso/country_codes/iso_3166_code_lists/country_names_and_code_elements.htm
55 * @author Shaopeng Jia
58 public class PhoneNumberUtil {
59 /** Flags to use when compiling regular expressions for phone numbers. */
60 static final int REGEX_FLAGS = Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE;
61 // The minimum and maximum length of the national significant number.
62 private static final int MIN_LENGTH_FOR_NSN = 2;
63 // The ITU says the maximum length should be 15, but we have found longer numbers in Germany.
64 static final int MAX_LENGTH_FOR_NSN = 16;
65 // The maximum length of the country calling code.
66 static final int MAX_LENGTH_COUNTRY_CODE = 3;
67 // We don't allow input strings for parsing to be longer than 250 chars. This prevents malicious
68 // input from overflowing the regular-expression engine.
69 private static final int MAX_INPUT_STRING_LENGTH = 250;
70 static final String META_DATA_FILE_PREFIX =
71 "/com/google/i18n/phonenumbers/data/PhoneNumberMetadataProto";
72 private String currentFilePrefix = META_DATA_FILE_PREFIX;
73 private static final Logger LOGGER = Logger.getLogger(PhoneNumberUtil.class.getName());
75 // A mapping from a country calling code to the region codes which denote the region represented
76 // by that country calling code. In the case of multiple regions sharing a calling code, such as
77 // the NANPA regions, the one indicated with "isMainCountryForCode" in the metadata should be
79 private Map<Integer, List<String>> countryCallingCodeToRegionCodeMap = null;
81 // The set of regions the library supports.
82 // There are roughly 240 of them and we set the initial capacity of the HashSet to 320 to offer a
83 // load factor of roughly 0.75.
84 private final Set<String> supportedRegions = new HashSet<String>(320);
86 // Region-code for the unknown region.
87 private static final String UNKNOWN_REGION = "ZZ";
89 // The set of regions that share country calling code 1.
90 // There are roughly 26 regions and we set the initial capacity of the HashSet to 35 to offer a
91 // load factor of roughly 0.75.
92 private final Set<String> nanpaRegions = new HashSet<String>(35);
93 private static final int NANPA_COUNTRY_CODE = 1;
95 // The prefix that needs to be inserted in front of a Colombian landline number when dialed from
96 // a mobile phone in Colombia.
97 private static final String COLOMBIA_MOBILE_TO_FIXED_LINE_PREFIX = "3";
99 // The PLUS_SIGN signifies the international prefix.
100 static final char PLUS_SIGN = '+';
102 private static final char STAR_SIGN = '*';
104 private static final String RFC3966_EXTN_PREFIX = ";ext=";
105 private static final String RFC3966_PREFIX = "tel:";
106 private static final String RFC3966_PHONE_CONTEXT = ";phone-context=";
107 private static final String RFC3966_ISDN_SUBADDRESS = ";isub=";
109 // A map that contains characters that are essential when dialling. That means any of the
110 // characters in this map must not be removed from a number when dialing, otherwise the call will
111 // not reach the intended destination.
112 private static final Map<Character, Character> DIALLABLE_CHAR_MAPPINGS;
114 // Only upper-case variants of alpha characters are stored.
115 private static final Map<Character, Character> ALPHA_MAPPINGS;
117 // For performance reasons, amalgamate both into one map.
118 private static final Map<Character, Character> ALPHA_PHONE_MAPPINGS;
120 // Separate map of all symbols that we wish to retain when formatting alpha numbers. This
121 // includes digits, ASCII letters and number grouping symbols such as "-" and " ".
122 private static final Map<Character, Character> ALL_PLUS_NUMBER_GROUPING_SYMBOLS;
125 // Simple ASCII digits map used to populate ALPHA_PHONE_MAPPINGS and
126 // ALL_PLUS_NUMBER_GROUPING_SYMBOLS.
127 HashMap<Character, Character> asciiDigitMappings = new HashMap<Character, Character>();
128 asciiDigitMappings.put('0', '0');
129 asciiDigitMappings.put('1', '1');
130 asciiDigitMappings.put('2', '2');
131 asciiDigitMappings.put('3', '3');
132 asciiDigitMappings.put('4', '4');
133 asciiDigitMappings.put('5', '5');
134 asciiDigitMappings.put('6', '6');
135 asciiDigitMappings.put('7', '7');
136 asciiDigitMappings.put('8', '8');
137 asciiDigitMappings.put('9', '9');
139 HashMap<Character, Character> alphaMap = new HashMap<Character, Character>(40);
140 alphaMap.put('A', '2');
141 alphaMap.put('B', '2');
142 alphaMap.put('C', '2');
143 alphaMap.put('D', '3');
144 alphaMap.put('E', '3');
145 alphaMap.put('F', '3');
146 alphaMap.put('G', '4');
147 alphaMap.put('H', '4');
148 alphaMap.put('I', '4');
149 alphaMap.put('J', '5');
150 alphaMap.put('K', '5');
151 alphaMap.put('L', '5');
152 alphaMap.put('M', '6');
153 alphaMap.put('N', '6');
154 alphaMap.put('O', '6');
155 alphaMap.put('P', '7');
156 alphaMap.put('Q', '7');
157 alphaMap.put('R', '7');
158 alphaMap.put('S', '7');
159 alphaMap.put('T', '8');
160 alphaMap.put('U', '8');
161 alphaMap.put('V', '8');
162 alphaMap.put('W', '9');
163 alphaMap.put('X', '9');
164 alphaMap.put('Y', '9');
165 alphaMap.put('Z', '9');
166 ALPHA_MAPPINGS = Collections.unmodifiableMap(alphaMap);
168 HashMap<Character, Character> combinedMap = new HashMap<Character, Character>(100);
169 combinedMap.putAll(ALPHA_MAPPINGS);
170 combinedMap.putAll(asciiDigitMappings);
171 ALPHA_PHONE_MAPPINGS = Collections.unmodifiableMap(combinedMap);
173 HashMap<Character, Character> diallableCharMap = new HashMap<Character, Character>();
174 diallableCharMap.putAll(asciiDigitMappings);
175 diallableCharMap.put(PLUS_SIGN, PLUS_SIGN);
176 diallableCharMap.put('*', '*');
177 DIALLABLE_CHAR_MAPPINGS = Collections.unmodifiableMap(diallableCharMap);
179 HashMap<Character, Character> allPlusNumberGroupings = new HashMap<Character, Character>();
180 // Put (lower letter -> upper letter) and (upper letter -> upper letter) mappings.
181 for (char c : ALPHA_MAPPINGS.keySet()) {
182 allPlusNumberGroupings.put(Character.toLowerCase(c), c);
183 allPlusNumberGroupings.put(c, c);
185 allPlusNumberGroupings.putAll(asciiDigitMappings);
186 // Put grouping symbols.
187 allPlusNumberGroupings.put('-', '-');
188 allPlusNumberGroupings.put('\uFF0D', '-');
189 allPlusNumberGroupings.put('\u2010', '-');
190 allPlusNumberGroupings.put('\u2011', '-');
191 allPlusNumberGroupings.put('\u2012', '-');
192 allPlusNumberGroupings.put('\u2013', '-');
193 allPlusNumberGroupings.put('\u2014', '-');
194 allPlusNumberGroupings.put('\u2015', '-');
195 allPlusNumberGroupings.put('\u2212', '-');
196 allPlusNumberGroupings.put('/', '/');
197 allPlusNumberGroupings.put('\uFF0F', '/');
198 allPlusNumberGroupings.put(' ', ' ');
199 allPlusNumberGroupings.put('\u3000', ' ');
200 allPlusNumberGroupings.put('\u2060', ' ');
201 allPlusNumberGroupings.put('.', '.');
202 allPlusNumberGroupings.put('\uFF0E', '.');
203 ALL_PLUS_NUMBER_GROUPING_SYMBOLS = Collections.unmodifiableMap(allPlusNumberGroupings);
206 // Pattern that makes it easy to distinguish whether a region has a unique international dialing
207 // prefix or not. If a region has a unique international prefix (e.g. 011 in USA), it will be
208 // represented as a string that contains a sequence of ASCII digits. If there are multiple
209 // available international prefixes in a region, they will be represented as a regex string that
210 // always contains character(s) other than ASCII digits.
211 // Note this regex also includes tilde, which signals waiting for the tone.
212 private static final Pattern UNIQUE_INTERNATIONAL_PREFIX =
213 Pattern.compile("[\\d]+(?:[~\u2053\u223C\uFF5E][\\d]+)?");
215 // Regular expression of acceptable punctuation found in phone numbers. This excludes punctuation
216 // found as a leading character only.
217 // This consists of dash characters, white space characters, full stops, slashes,
218 // square brackets, parentheses and tildes. It also includes the letter 'x' as that is found as a
219 // placeholder for carrier information in some phone numbers. Full-width variants are also
221 static final String VALID_PUNCTUATION = "-x\u2010-\u2015\u2212\u30FC\uFF0D-\uFF0F " +
222 "\u00A0\u00AD\u200B\u2060\u3000()\uFF08\uFF09\uFF3B\uFF3D.\\[\\]/~\u2053\u223C\uFF5E";
224 private static final String DIGITS = "\\p{Nd}";
225 // We accept alpha characters in phone numbers, ASCII only, upper and lower case.
226 private static final String VALID_ALPHA =
227 Arrays.toString(ALPHA_MAPPINGS.keySet().toArray()).replaceAll("[, \\[\\]]", "") +
228 Arrays.toString(ALPHA_MAPPINGS.keySet().toArray()).toLowerCase().replaceAll("[, \\[\\]]", "");
229 static final String PLUS_CHARS = "+\uFF0B";
230 static final Pattern PLUS_CHARS_PATTERN = Pattern.compile("[" + PLUS_CHARS + "]+");
231 private static final Pattern SEPARATOR_PATTERN = Pattern.compile("[" + VALID_PUNCTUATION + "]+");
232 private static final Pattern CAPTURING_DIGIT_PATTERN = Pattern.compile("(" + DIGITS + ")");
234 // Regular expression of acceptable characters that may start a phone number for the purposes of
235 // parsing. This allows us to strip away meaningless prefixes to phone numbers that may be
236 // mistakenly given to us. This consists of digits, the plus symbol and arabic-indic digits. This
237 // does not contain alpha characters, although they may be used later in the number. It also does
238 // not include other punctuation, as this will be stripped later during parsing and is of no
239 // information value when parsing a number.
240 private static final String VALID_START_CHAR = "[" + PLUS_CHARS + DIGITS + "]";
241 private static final Pattern VALID_START_CHAR_PATTERN = Pattern.compile(VALID_START_CHAR);
243 // Regular expression of characters typically used to start a second phone number for the purposes
244 // of parsing. This allows us to strip off parts of the number that are actually the start of
245 // another number, such as for: (530) 583-6985 x302/x2303 -> the second extension here makes this
246 // actually two phone numbers, (530) 583-6985 x302 and (530) 583-6985 x2303. We remove the second
247 // extension so that the first number is parsed correctly.
248 private static final String SECOND_NUMBER_START = "[\\\\/] *x";
249 static final Pattern SECOND_NUMBER_START_PATTERN = Pattern.compile(SECOND_NUMBER_START);
251 // Regular expression of trailing characters that we want to remove. We remove all characters that
252 // are not alpha or numerical characters. The hash character is retained here, as it may signify
253 // the previous block was an extension.
254 private static final String UNWANTED_END_CHARS = "[[\\P{N}&&\\P{L}]&&[^#]]+$";
255 static final Pattern UNWANTED_END_CHAR_PATTERN = Pattern.compile(UNWANTED_END_CHARS);
257 // We use this pattern to check if the phone number has at least three letters in it - if so, then
258 // we treat it as a number where some phone-number digits are represented by letters.
259 private static final Pattern VALID_ALPHA_PHONE_PATTERN = Pattern.compile("(?:.*?[A-Za-z]){3}.*");
261 // Regular expression of viable phone numbers. This is location independent. Checks we have at
262 // least three leading digits, and only valid punctuation, alpha characters and
263 // digits in the phone number. Does not include extension data.
264 // The symbol 'x' is allowed here as valid punctuation since it is often used as a placeholder for
265 // carrier codes, for example in Brazilian phone numbers. We also allow multiple "+" characters at
267 // Corresponds to the following:
268 // [digits]{minLengthNsn}|
269 // plus_sign*(([punctuation]|[star])*[digits]){3,}([punctuation]|[star]|[digits]|[alpha])*
271 // The first reg-ex is to allow short numbers (two digits long) to be parsed if they are entered
272 // as "15" etc, but only if there is no punctuation in them. The second expression restricts the
273 // number of digits to three or more, but then allows them to be in international form, and to
274 // have alpha-characters and punctuation.
276 // Note VALID_PUNCTUATION starts with a -, so must be the first in the range.
277 private static final String VALID_PHONE_NUMBER =
278 DIGITS + "{" + MIN_LENGTH_FOR_NSN + "}" + "|" +
279 "[" + PLUS_CHARS + "]*+(?:[" + VALID_PUNCTUATION + STAR_SIGN + "]*" + DIGITS + "){3,}[" +
280 VALID_PUNCTUATION + STAR_SIGN + VALID_ALPHA + DIGITS + "]*";
282 // Default extension prefix to use when formatting. This will be put in front of any extension
283 // component of the number, after the main national number is formatted. For example, if you wish
284 // the default extension formatting to be " extn: 3456", then you should specify " extn: " here
285 // as the default extension prefix. This can be overridden by region-specific preferences.
286 private static final String DEFAULT_EXTN_PREFIX = " ext. ";
288 // Pattern to capture digits used in an extension. Places a maximum length of "7" for an
290 private static final String CAPTURING_EXTN_DIGITS = "(" + DIGITS + "{1,7})";
291 // Regexp of all possible ways to write extensions, for use when parsing. This will be run as a
292 // case-insensitive regexp match. Wide character versions are also provided after each ASCII
294 private static final String EXTN_PATTERNS_FOR_PARSING;
295 static final String EXTN_PATTERNS_FOR_MATCHING;
297 // One-character symbols that can be used to indicate an extension.
298 String singleExtnSymbolsForMatching = "x\uFF58#\uFF03~\uFF5E";
299 // For parsing, we are slightly more lenient in our interpretation than for matching. Here we
300 // allow a "comma" as a possible extension indicator. When matching, this is hardly ever used to
302 String singleExtnSymbolsForParsing = "," + singleExtnSymbolsForMatching;
304 EXTN_PATTERNS_FOR_PARSING = createExtnPattern(singleExtnSymbolsForParsing);
305 EXTN_PATTERNS_FOR_MATCHING = createExtnPattern(singleExtnSymbolsForMatching);
309 * Helper initialiser method to create the regular-expression pattern to match extensions,
310 * allowing the one-char extension symbols provided by {@code singleExtnSymbols}.
312 private static String createExtnPattern(String singleExtnSymbols) {
313 // There are three regular expressions here. The first covers RFC 3966 format, where the
314 // extension is added using ";ext=". The second more generic one starts with optional white
315 // space and ends with an optional full stop (.), followed by zero or more spaces/tabs and then
316 // the numbers themselves. The other one covers the special case of American numbers where the
317 // extension is written with a hash at the end, such as "- 503#".
318 // Note that the only capturing groups should be around the digits that you want to capture as
319 // part of the extension, or else parsing will fail!
320 // Canonical-equivalence doesn't seem to be an option with Android java, so we allow two options
321 // for representing the accented o - the character itself, and one in the unicode decomposed
322 // form with the combining acute accent.
323 return (RFC3966_EXTN_PREFIX + CAPTURING_EXTN_DIGITS + "|" + "[ \u00A0\\t,]*" +
324 "(?:e?xt(?:ensi(?:o\u0301?|\u00F3))?n?|\uFF45?\uFF58\uFF54\uFF4E?|" +
325 "[" + singleExtnSymbols + "]|int|anexo|\uFF49\uFF4E\uFF54)" +
326 "[:\\.\uFF0E]?[ \u00A0\\t,-]*" + CAPTURING_EXTN_DIGITS + "#?|" +
327 "[- ]+(" + DIGITS + "{1,5})#");
330 // Regexp of all known extension prefixes used by different regions followed by 1 or more valid
331 // digits, for use when parsing.
332 private static final Pattern EXTN_PATTERN =
333 Pattern.compile("(?:" + EXTN_PATTERNS_FOR_PARSING + ")$", REGEX_FLAGS);
335 // We append optionally the extension pattern to the end here, as a valid phone number may
336 // have an extension prefix appended, followed by 1 or more digits.
337 private static final Pattern VALID_PHONE_NUMBER_PATTERN =
338 Pattern.compile(VALID_PHONE_NUMBER + "(?:" + EXTN_PATTERNS_FOR_PARSING + ")?", REGEX_FLAGS);
340 static final Pattern NON_DIGITS_PATTERN = Pattern.compile("(\\D+)");
342 // The FIRST_GROUP_PATTERN was originally set to $1 but there are some countries for which the
343 // first group is not used in the national pattern (e.g. Argentina) so the $1 group does not match
344 // correctly. Therefore, we use \d, so that the first group actually used in the pattern will be
346 private static final Pattern FIRST_GROUP_PATTERN = Pattern.compile("(\\$\\d)");
347 private static final Pattern NP_PATTERN = Pattern.compile("\\$NP");
348 private static final Pattern FG_PATTERN = Pattern.compile("\\$FG");
349 private static final Pattern CC_PATTERN = Pattern.compile("\\$CC");
351 private static PhoneNumberUtil instance = null;
353 // A mapping from a region code to the PhoneMetadata for that region.
354 private final Map<String, PhoneMetadata> regionToMetadataMap =
355 Collections.synchronizedMap(new HashMap<String, PhoneMetadata>());
357 // A mapping from a country calling code for a non-geographical entity to the PhoneMetadata for
358 // that country calling code. Examples of the country calling codes include 800 (International
359 // Toll Free Service) and 808 (International Shared Cost Service).
360 private final Map<Integer, PhoneMetadata> countryCodeToNonGeographicalMetadataMap =
361 Collections.synchronizedMap(new HashMap<Integer, PhoneMetadata>());
363 // A cache for frequently used region-specific regular expressions.
364 // As most people use phone numbers primarily from one to two countries, and there are roughly 60
365 // regular expressions needed, the initial capacity of 100 offers a rough load factor of 0.75.
366 private RegexCache regexCache = new RegexCache(100);
368 public static final String REGION_CODE_FOR_NON_GEO_ENTITY = "001";
371 * INTERNATIONAL and NATIONAL formats are consistent with the definition in ITU-T Recommendation
372 * E123. For example, the number of the Google Switzerland office will be written as
373 * "+41 44 668 1800" in INTERNATIONAL format, and as "044 668 1800" in NATIONAL format.
374 * E164 format is as per INTERNATIONAL format but with no formatting applied, e.g.
375 * "+41446681800". RFC3966 is as per INTERNATIONAL format, but with all spaces and other
376 * separating symbols replaced with a hyphen, and with any phone number extension appended with
377 * ";ext=". It also will have a prefix of "tel:" added, e.g. "tel:+41-44-668-1800".
379 * Note: If you are considering storing the number in a neutral format, you are highly advised to
380 * use the PhoneNumber class.
382 public enum PhoneNumberFormat {
390 * Type of phone numbers.
392 public enum PhoneNumberType {
395 // In some regions (e.g. the USA), it is impossible to distinguish between fixed-line and
396 // mobile numbers by looking at the phone number itself.
397 FIXED_LINE_OR_MOBILE,
401 // The cost of this call is shared between the caller and the recipient, and is hence typically
402 // less than PREMIUM_RATE calls. See // http://en.wikipedia.org/wiki/Shared_Cost_Service for
405 // Voice over IP numbers. This includes TSoIP (Telephony Service over IP).
407 // A personal number is associated with a particular person, and may be routed to either a
408 // MOBILE or FIXED_LINE number. Some more information can be found here:
409 // http://en.wikipedia.org/wiki/Personal_Numbers
412 // Used for "Universal Access Numbers" or "Company Numbers". They may be further routed to
413 // specific offices, but allow one number to be used for a company.
415 // Used for "Voice Mail Access Numbers".
417 // A phone number is of type UNKNOWN when it does not fit any of the known patterns for a
423 * Types of phone number matches. See detailed description beside the isNumberMatch() method.
425 public enum MatchType {
434 * Possible outcomes when testing if a PhoneNumber is possible.
436 public enum ValidationResult {
438 INVALID_COUNTRY_CODE,
444 * Leniency when {@linkplain PhoneNumberUtil#findNumbers finding} potential phone numbers in text
445 * segments. The levels here are ordered in increasing strictness.
447 public enum Leniency {
449 * Phone numbers accepted are {@linkplain PhoneNumberUtil#isPossibleNumber(PhoneNumber)
450 * possible}, but not necessarily {@linkplain PhoneNumberUtil#isValidNumber(PhoneNumber) valid}.
454 boolean verify(PhoneNumber number, String candidate, PhoneNumberUtil util) {
455 return util.isPossibleNumber(number);
459 * Phone numbers accepted are {@linkplain PhoneNumberUtil#isPossibleNumber(PhoneNumber)
460 * possible} and {@linkplain PhoneNumberUtil#isValidNumber(PhoneNumber) valid}. Numbers written
461 * in national format must have their national-prefix present if it is usually written for a
462 * number of this type.
466 boolean verify(PhoneNumber number, String candidate, PhoneNumberUtil util) {
467 if (!util.isValidNumber(number) ||
468 !PhoneNumberMatcher.containsOnlyValidXChars(number, candidate, util)) {
471 return PhoneNumberMatcher.isNationalPrefixPresentIfRequired(number, util);
475 * Phone numbers accepted are {@linkplain PhoneNumberUtil#isValidNumber(PhoneNumber) valid} and
476 * are grouped in a possible way for this locale. For example, a US number written as
477 * "65 02 53 00 00" and "650253 0000" are not accepted at this leniency level, whereas
478 * "650 253 0000", "650 2530000" or "6502530000" are.
479 * Numbers with more than one '/' symbol are also dropped at this level.
481 * Warning: This level might result in lower coverage especially for regions outside of country
482 * code "+1". If you are not sure about which level to use, email the discussion group
483 * libphonenumber-discuss@googlegroups.com.
487 boolean verify(PhoneNumber number, String candidate, PhoneNumberUtil util) {
488 if (!util.isValidNumber(number) ||
489 !PhoneNumberMatcher.containsOnlyValidXChars(number, candidate, util) ||
490 PhoneNumberMatcher.containsMoreThanOneSlash(candidate) ||
491 !PhoneNumberMatcher.isNationalPrefixPresentIfRequired(number, util)) {
494 return PhoneNumberMatcher.checkNumberGroupingIsValid(
495 number, candidate, util, new PhoneNumberMatcher.NumberGroupingChecker() {
496 public boolean checkGroups(PhoneNumberUtil util, PhoneNumber number,
497 StringBuilder normalizedCandidate,
498 String[] expectedNumberGroups) {
499 return PhoneNumberMatcher.allNumberGroupsRemainGrouped(
500 util, number, normalizedCandidate, expectedNumberGroups);
506 * Phone numbers accepted are {@linkplain PhoneNumberUtil#isValidNumber(PhoneNumber) valid} and
507 * are grouped in the same way that we would have formatted it, or as a single block. For
508 * example, a US number written as "650 2530000" is not accepted at this leniency level, whereas
509 * "650 253 0000" or "6502530000" are.
510 * Numbers with more than one '/' symbol are also dropped at this level.
512 * Warning: This level might result in lower coverage especially for regions outside of country
513 * code "+1". If you are not sure about which level to use, email the discussion group
514 * libphonenumber-discuss@googlegroups.com.
518 boolean verify(PhoneNumber number, String candidate, PhoneNumberUtil util) {
519 if (!util.isValidNumber(number) ||
520 !PhoneNumberMatcher.containsOnlyValidXChars(number, candidate, util) ||
521 PhoneNumberMatcher.containsMoreThanOneSlash(candidate) ||
522 !PhoneNumberMatcher.isNationalPrefixPresentIfRequired(number, util)) {
525 return PhoneNumberMatcher.checkNumberGroupingIsValid(
526 number, candidate, util, new PhoneNumberMatcher.NumberGroupingChecker() {
527 public boolean checkGroups(PhoneNumberUtil util, PhoneNumber number,
528 StringBuilder normalizedCandidate,
529 String[] expectedNumberGroups) {
530 return PhoneNumberMatcher.allNumberGroupsAreExactlyPresent(
531 util, number, normalizedCandidate, expectedNumberGroups);
537 /** Returns true if {@code number} is a verified number according to this leniency. */
538 abstract boolean verify(PhoneNumber number, String candidate, PhoneNumberUtil util);
542 * This class implements a singleton, so the only constructor is private.
544 private PhoneNumberUtil() {
547 private void init(String filePrefix) {
548 currentFilePrefix = filePrefix;
549 for (List<String> regionCodes : countryCallingCodeToRegionCodeMap.values()) {
550 supportedRegions.addAll(regionCodes);
552 supportedRegions.remove(REGION_CODE_FOR_NON_GEO_ENTITY);
553 nanpaRegions.addAll(countryCallingCodeToRegionCodeMap.get(NANPA_COUNTRY_CODE));
556 private void loadMetadataFromFile(String filePrefix, String regionCode, int countryCallingCode) {
557 boolean isNonGeoRegion = REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCode);
558 InputStream source = isNonGeoRegion
559 ? PhoneNumberUtil.class.getResourceAsStream(filePrefix + "_" + countryCallingCode)
560 : PhoneNumberUtil.class.getResourceAsStream(filePrefix + "_" + regionCode);
561 ObjectInputStream in = null;
563 in = new ObjectInputStream(source);
564 PhoneMetadataCollection metadataCollection = new PhoneMetadataCollection();
565 metadataCollection.readExternal(in);
566 for (PhoneMetadata metadata : metadataCollection.getMetadataList()) {
567 if (isNonGeoRegion) {
568 countryCodeToNonGeographicalMetadataMap.put(countryCallingCode, metadata);
570 regionToMetadataMap.put(regionCode, metadata);
573 } catch (IOException e) {
574 LOGGER.log(Level.WARNING, e.toString());
580 private static void close(InputStream in) {
584 } catch (IOException e) {
585 LOGGER.log(Level.WARNING, e.toString());
591 * Attempts to extract a possible number from the string passed in. This currently strips all
592 * leading characters that cannot be used to start a phone number. Characters that can be used to
593 * start a phone number are defined in the VALID_START_CHAR_PATTERN. If none of these characters
594 * are found in the number passed in, an empty string is returned. This function also attempts to
595 * strip off any alternative extensions or endings if two or more are present, such as in the case
596 * of: (530) 583-6985 x302/x2303. The second extension here makes this actually two phone numbers,
597 * (530) 583-6985 x302 and (530) 583-6985 x2303. We remove the second extension so that the first
598 * number is parsed correctly.
600 * @param number the string that might contain a phone number
601 * @return the number, stripped of any non-phone-number prefix (such as "Tel:") or an empty
602 * string if no character used to start phone numbers (such as + or any digit) is
603 * found in the number
605 static String extractPossibleNumber(String number) {
606 Matcher m = VALID_START_CHAR_PATTERN.matcher(number);
608 number = number.substring(m.start());
609 // Remove trailing non-alpha non-numerical characters.
610 Matcher trailingCharsMatcher = UNWANTED_END_CHAR_PATTERN.matcher(number);
611 if (trailingCharsMatcher.find()) {
612 number = number.substring(0, trailingCharsMatcher.start());
613 LOGGER.log(Level.FINER, "Stripped trailing characters: " + number);
615 // Check for extra numbers at the end.
616 Matcher secondNumber = SECOND_NUMBER_START_PATTERN.matcher(number);
617 if (secondNumber.find()) {
618 number = number.substring(0, secondNumber.start());
627 * Checks to see if the string of characters could possibly be a phone number at all. At the
628 * moment, checks to see that the string begins with at least 2 digits, ignoring any punctuation
629 * commonly found in phone numbers.
630 * This method does not require the number to be normalized in advance - but does assume that
631 * leading non-number symbols have been removed, such as by the method extractPossibleNumber.
633 * @param number string to be checked for viability as a phone number
634 * @return true if the number could be a phone number of some sort, otherwise false
636 // @VisibleForTesting
637 static boolean isViablePhoneNumber(String number) {
638 if (number.length() < MIN_LENGTH_FOR_NSN) {
641 Matcher m = VALID_PHONE_NUMBER_PATTERN.matcher(number);
646 * Normalizes a string of characters representing a phone number. This performs the following
648 * Punctuation is stripped.
649 * For ALPHA/VANITY numbers:
650 * Letters are converted to their numeric representation on a telephone keypad. The keypad
651 * used here is the one defined in ITU Recommendation E.161. This is only done if there are
652 * 3 or more letters in the number, to lessen the risk that such letters are typos.
654 * Wide-ascii digits are converted to normal ASCII (European) digits.
655 * Arabic-Indic numerals are converted to European numerals.
656 * Spurious alpha characters are stripped.
658 * @param number a string of characters representing a phone number
659 * @return the normalized string version of the phone number
661 static String normalize(String number) {
662 Matcher m = VALID_ALPHA_PHONE_PATTERN.matcher(number);
664 return normalizeHelper(number, ALPHA_PHONE_MAPPINGS, true);
666 return normalizeDigitsOnly(number);
671 * Normalizes a string of characters representing a phone number. This is a wrapper for
672 * normalize(String number) but does in-place normalization of the StringBuilder provided.
674 * @param number a StringBuilder of characters representing a phone number that will be
675 * normalized in place
677 static void normalize(StringBuilder number) {
678 String normalizedNumber = normalize(number.toString());
679 number.replace(0, number.length(), normalizedNumber);
683 * Normalizes a string of characters representing a phone number. This converts wide-ascii and
684 * arabic-indic numerals to European numerals, and strips punctuation and alpha characters.
686 * @param number a string of characters representing a phone number
687 * @return the normalized string version of the phone number
689 public static String normalizeDigitsOnly(String number) {
690 return normalizeDigits(number, false /* strip non-digits */).toString();
693 static StringBuilder normalizeDigits(String number, boolean keepNonDigits) {
694 StringBuilder normalizedDigits = new StringBuilder(number.length());
695 for (char c : number.toCharArray()) {
696 int digit = Character.digit(c, 10);
698 normalizedDigits.append(digit);
699 } else if (keepNonDigits) {
700 normalizedDigits.append(c);
703 return normalizedDigits;
707 * Converts all alpha characters in a number to their respective digits on a keypad, but retains
708 * existing formatting.
710 public static String convertAlphaCharactersInNumber(String number) {
711 return normalizeHelper(number, ALPHA_PHONE_MAPPINGS, false);
715 * Gets the length of the geographical area code from the {@code nationalNumber_} field of the
716 * PhoneNumber object passed in, so that clients could use it to split a national significant
717 * number into geographical area code and subscriber number. It works in such a way that the
718 * resultant subscriber number should be diallable, at least on some devices. An example of how
719 * this could be used:
722 * PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
723 * PhoneNumber number = phoneUtil.parse("16502530000", "US");
724 * String nationalSignificantNumber = phoneUtil.getNationalSignificantNumber(number);
726 * String subscriberNumber;
728 * int areaCodeLength = phoneUtil.getLengthOfGeographicalAreaCode(number);
729 * if (areaCodeLength > 0) {
730 * areaCode = nationalSignificantNumber.substring(0, areaCodeLength);
731 * subscriberNumber = nationalSignificantNumber.substring(areaCodeLength);
734 * subscriberNumber = nationalSignificantNumber;
738 * N.B.: area code is a very ambiguous concept, so the I18N team generally recommends against
739 * using it for most purposes, but recommends using the more general {@code national_number}
740 * instead. Read the following carefully before deciding to use this method:
742 * <li> geographical area codes change over time, and this method honors those changes;
743 * therefore, it doesn't guarantee the stability of the result it produces.
744 * <li> subscriber numbers may not be diallable from all devices (notably mobile devices, which
745 * typically requires the full national_number to be dialled in most regions).
746 * <li> most non-geographical numbers have no area codes, including numbers from non-geographical
748 * <li> some geographical numbers have no area codes.
750 * @param number the PhoneNumber object for which clients want to know the length of the area
752 * @return the length of area code of the PhoneNumber object passed in.
754 public int getLengthOfGeographicalAreaCode(PhoneNumber number) {
755 String regionCode = getRegionCodeForNumber(number);
756 if (!isValidRegionCode(regionCode)) {
759 PhoneMetadata metadata = getMetadataForRegion(regionCode);
760 // If a country doesn't use a national prefix, and this number doesn't have an Italian leading
761 // zero, we assume it is a closed dialling plan with no area codes.
762 if (!metadata.hasNationalPrefix() && !number.isItalianLeadingZero()) {
766 PhoneNumberType type = getNumberTypeHelper(getNationalSignificantNumber(number),
768 // Most numbers other than the two types below have to be dialled in full.
769 if (type != PhoneNumberType.FIXED_LINE && type != PhoneNumberType.FIXED_LINE_OR_MOBILE) {
773 return getLengthOfNationalDestinationCode(number);
777 * Gets the length of the national destination code (NDC) from the PhoneNumber object passed in,
778 * so that clients could use it to split a national significant number into NDC and subscriber
779 * number. The NDC of a phone number is normally the first group of digit(s) right after the
780 * country calling code when the number is formatted in the international format, if there is a
781 * subscriber number part that follows. An example of how this could be used:
784 * PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
785 * PhoneNumber number = phoneUtil.parse("18002530000", "US");
786 * String nationalSignificantNumber = phoneUtil.getNationalSignificantNumber(number);
787 * String nationalDestinationCode;
788 * String subscriberNumber;
790 * int nationalDestinationCodeLength = phoneUtil.getLengthOfNationalDestinationCode(number);
791 * if (nationalDestinationCodeLength > 0) {
792 * nationalDestinationCode = nationalSignificantNumber.substring(0,
793 * nationalDestinationCodeLength);
794 * subscriberNumber = nationalSignificantNumber.substring(nationalDestinationCodeLength);
796 * nationalDestinationCode = "";
797 * subscriberNumber = nationalSignificantNumber;
801 * Refer to the unittests to see the difference between this function and
802 * {@link #getLengthOfGeographicalAreaCode}.
804 * @param number the PhoneNumber object for which clients want to know the length of the NDC.
805 * @return the length of NDC of the PhoneNumber object passed in.
807 public int getLengthOfNationalDestinationCode(PhoneNumber number) {
808 PhoneNumber copiedProto;
809 if (number.hasExtension()) {
810 // We don't want to alter the proto given to us, but we don't want to include the extension
811 // when we format it, so we copy it and clear the extension here.
812 copiedProto = new PhoneNumber();
813 copiedProto.mergeFrom(number);
814 copiedProto.clearExtension();
816 copiedProto = number;
819 String nationalSignificantNumber = format(copiedProto,
820 PhoneNumberUtil.PhoneNumberFormat.INTERNATIONAL);
821 String[] numberGroups = NON_DIGITS_PATTERN.split(nationalSignificantNumber);
822 // The pattern will start with "+COUNTRY_CODE " so the first group will always be the empty
823 // string (before the + symbol) and the second group will be the country calling code. The third
824 // group will be area code if it is not the last group.
825 if (numberGroups.length <= 3) {
829 if (getRegionCodeForCountryCode(number.getCountryCode()).equals("AR") &&
830 getNumberType(number) == PhoneNumberType.MOBILE) {
831 // Argentinian mobile numbers, when formatted in the international format, are in the form of
832 // +54 9 NDC XXXX.... As a result, we take the length of the third group (NDC) and add 1 for
833 // the digit 9, which also forms part of the national significant number.
835 // TODO: Investigate the possibility of better modeling the metadata to make it
836 // easier to obtain the NDC.
837 return numberGroups[3].length() + 1;
839 return numberGroups[2].length();
843 * Normalizes a string of characters representing a phone number by replacing all characters found
844 * in the accompanying map with the values therein, and stripping all other characters if
845 * removeNonMatches is true.
847 * @param number a string of characters representing a phone number
848 * @param normalizationReplacements a mapping of characters to what they should be replaced by in
849 * the normalized version of the phone number
850 * @param removeNonMatches indicates whether characters that are not able to be replaced
851 * should be stripped from the number. If this is false, they
852 * will be left unchanged in the number.
853 * @return the normalized string version of the phone number
855 private static String normalizeHelper(String number,
856 Map<Character, Character> normalizationReplacements,
857 boolean removeNonMatches) {
858 StringBuilder normalizedNumber = new StringBuilder(number.length());
859 char[] numberAsCharArray = number.toCharArray();
860 for (char character : numberAsCharArray) {
861 Character newDigit = normalizationReplacements.get(Character.toUpperCase(character));
862 if (newDigit != null) {
863 normalizedNumber.append(newDigit);
864 } else if (!removeNonMatches) {
865 normalizedNumber.append(character);
867 // If neither of the above are true, we remove this character.
869 return normalizedNumber.toString();
872 // @VisibleForTesting
873 static synchronized PhoneNumberUtil getInstance(
874 String baseFileLocation,
875 Map<Integer, List<String>> countryCallingCodeToRegionCodeMap) {
876 if (instance == null) {
877 instance = new PhoneNumberUtil();
878 instance.countryCallingCodeToRegionCodeMap = countryCallingCodeToRegionCodeMap;
879 instance.init(baseFileLocation);
885 * Used for testing purposes only to reset the PhoneNumberUtil singleton to null.
887 // @VisibleForTesting
888 static synchronized void resetInstance() {
893 * Convenience method to get a list of what regions the library has metadata for.
895 public Set<String> getSupportedRegions() {
896 return supportedRegions;
900 * Convenience method to get a list of what global network calling codes the library has metadata
903 public Set<Integer> getSupportedGlobalNetworkCallingCodes() {
904 return countryCodeToNonGeographicalMetadataMap.keySet();
908 * Gets a {@link PhoneNumberUtil} instance to carry out international phone number formatting,
909 * parsing, or validation. The instance is loaded with phone number metadata for a number of most
910 * commonly used regions.
912 * <p>The {@link PhoneNumberUtil} is implemented as a singleton. Therefore, calling getInstance
913 * multiple times will only result in one instance being created.
915 * @return a PhoneNumberUtil instance
917 public static synchronized PhoneNumberUtil getInstance() {
918 if (instance == null) {
919 return getInstance(META_DATA_FILE_PREFIX,
920 CountryCodeToRegionCodeMap.getCountryCodeToRegionCodeMap());
926 * Helper function to check region code is not unknown or null.
928 private boolean isValidRegionCode(String regionCode) {
929 return regionCode != null && supportedRegions.contains(regionCode);
933 * Helper function to check the country calling code is valid.
935 private boolean hasValidCountryCallingCode(int countryCallingCode) {
936 return countryCallingCodeToRegionCodeMap.containsKey(countryCallingCode);
940 * Formats a phone number in the specified format using default rules. Note that this does not
941 * promise to produce a phone number that the user can dial from where they are - although we do
942 * format in either 'national' or 'international' format depending on what the client asks for, we
943 * do not currently support a more abbreviated format, such as for users in the same "area" who
944 * could potentially dial the number without area code. Note that if the phone number has a
945 * country calling code of 0 or an otherwise invalid country calling code, we cannot work out
946 * which formatting rules to apply so we return the national significant number with no formatting
949 * @param number the phone number to be formatted
950 * @param numberFormat the format the phone number should be formatted into
951 * @return the formatted phone number
953 public String format(PhoneNumber number, PhoneNumberFormat numberFormat) {
954 if (number.getNationalNumber() == 0 && number.hasRawInput()) {
955 String rawInput = number.getRawInput();
956 if (rawInput.length() > 0) {
960 StringBuilder formattedNumber = new StringBuilder(20);
961 format(number, numberFormat, formattedNumber);
962 return formattedNumber.toString();
966 * Same as {@link #format(PhoneNumber, PhoneNumberFormat)}, but accepts a mutable StringBuilder as
967 * a parameter to decrease object creation when invoked many times.
969 public void format(PhoneNumber number, PhoneNumberFormat numberFormat,
970 StringBuilder formattedNumber) {
971 // Clear the StringBuilder first.
972 formattedNumber.setLength(0);
973 int countryCallingCode = number.getCountryCode();
974 String nationalSignificantNumber = getNationalSignificantNumber(number);
975 if (numberFormat == PhoneNumberFormat.E164) {
976 // Early exit for E164 case since no formatting of the national number needs to be applied.
977 // Extensions are not formatted.
978 formattedNumber.append(nationalSignificantNumber);
979 prefixNumberWithCountryCallingCode(countryCallingCode, PhoneNumberFormat.E164,
983 // Note getRegionCodeForCountryCode() is used because formatting information for regions which
984 // share a country calling code is contained by only one region for performance reasons. For
985 // example, for NANPA regions it will be contained in the metadata for US.
986 String regionCode = getRegionCodeForCountryCode(countryCallingCode);
987 if (!hasValidCountryCallingCode(countryCallingCode)) {
988 formattedNumber.append(nationalSignificantNumber);
992 PhoneMetadata metadata =
993 getMetadataForRegionOrCallingCode(countryCallingCode, regionCode);
994 formattedNumber.append(formatNsn(nationalSignificantNumber, metadata, numberFormat));
995 maybeAppendFormattedExtension(number, metadata, numberFormat, formattedNumber);
996 prefixNumberWithCountryCallingCode(countryCallingCode, numberFormat, formattedNumber);
1000 * Formats a phone number in the specified format using client-defined formatting rules. Note that
1001 * if the phone number has a country calling code of zero or an otherwise invalid country calling
1002 * code, we cannot work out things like whether there should be a national prefix applied, or how
1003 * to format extensions, so we return the national significant number with no formatting applied.
1005 * @param number the phone number to be formatted
1006 * @param numberFormat the format the phone number should be formatted into
1007 * @param userDefinedFormats formatting rules specified by clients
1008 * @return the formatted phone number
1010 public String formatByPattern(PhoneNumber number,
1011 PhoneNumberFormat numberFormat,
1012 List<NumberFormat> userDefinedFormats) {
1013 int countryCallingCode = number.getCountryCode();
1014 String nationalSignificantNumber = getNationalSignificantNumber(number);
1015 // Note getRegionCodeForCountryCode() is used because formatting information for regions which
1016 // share a country calling code is contained by only one region for performance reasons. For
1017 // example, for NANPA regions it will be contained in the metadata for US.
1018 String regionCode = getRegionCodeForCountryCode(countryCallingCode);
1019 if (!hasValidCountryCallingCode(countryCallingCode)) {
1020 return nationalSignificantNumber;
1022 PhoneMetadata metadata =
1023 getMetadataForRegionOrCallingCode(countryCallingCode, regionCode);
1025 StringBuilder formattedNumber = new StringBuilder(20);
1027 NumberFormat formattingPattern =
1028 chooseFormattingPatternForNumber(userDefinedFormats, nationalSignificantNumber);
1029 if (formattingPattern == null) {
1030 // If no pattern above is matched, we format the number as a whole.
1031 formattedNumber.append(nationalSignificantNumber);
1033 NumberFormat numFormatCopy = new NumberFormat();
1034 // Before we do a replacement of the national prefix pattern $NP with the national prefix, we
1035 // need to copy the rule so that subsequent replacements for different numbers have the
1036 // appropriate national prefix.
1037 numFormatCopy.mergeFrom(formattingPattern);
1038 String nationalPrefixFormattingRule = formattingPattern.getNationalPrefixFormattingRule();
1039 if (nationalPrefixFormattingRule.length() > 0) {
1040 String nationalPrefix = metadata.getNationalPrefix();
1041 if (nationalPrefix.length() > 0) {
1042 // Replace $NP with national prefix and $FG with the first group ($1).
1043 nationalPrefixFormattingRule =
1044 NP_PATTERN.matcher(nationalPrefixFormattingRule).replaceFirst(nationalPrefix);
1045 nationalPrefixFormattingRule =
1046 FG_PATTERN.matcher(nationalPrefixFormattingRule).replaceFirst("\\$1");
1047 numFormatCopy.setNationalPrefixFormattingRule(nationalPrefixFormattingRule);
1049 // We don't want to have a rule for how to format the national prefix if there isn't one.
1050 numFormatCopy.clearNationalPrefixFormattingRule();
1053 formattedNumber.append(
1054 formatNsnUsingPattern(nationalSignificantNumber, numFormatCopy, numberFormat));
1056 maybeAppendFormattedExtension(number, metadata, numberFormat, formattedNumber);
1057 prefixNumberWithCountryCallingCode(countryCallingCode, numberFormat, formattedNumber);
1058 return formattedNumber.toString();
1062 * Formats a phone number in national format for dialing using the carrier as specified in the
1063 * {@code carrierCode}. The {@code carrierCode} will always be used regardless of whether the
1064 * phone number already has a preferred domestic carrier code stored. If {@code carrierCode}
1065 * contains an empty string, returns the number in national format without any carrier code.
1067 * @param number the phone number to be formatted
1068 * @param carrierCode the carrier selection code to be used
1069 * @return the formatted phone number in national format for dialing using the carrier as
1070 * specified in the {@code carrierCode}
1072 public String formatNationalNumberWithCarrierCode(PhoneNumber number, String carrierCode) {
1073 int countryCallingCode = number.getCountryCode();
1074 String nationalSignificantNumber = getNationalSignificantNumber(number);
1075 // Note getRegionCodeForCountryCode() is used because formatting information for regions which
1076 // share a country calling code is contained by only one region for performance reasons. For
1077 // example, for NANPA regions it will be contained in the metadata for US.
1078 String regionCode = getRegionCodeForCountryCode(countryCallingCode);
1079 if (!hasValidCountryCallingCode(countryCallingCode)) {
1080 return nationalSignificantNumber;
1083 StringBuilder formattedNumber = new StringBuilder(20);
1084 PhoneMetadata metadata = getMetadataForRegionOrCallingCode(countryCallingCode, regionCode);
1085 formattedNumber.append(formatNsn(nationalSignificantNumber, metadata,
1086 PhoneNumberFormat.NATIONAL, carrierCode));
1087 maybeAppendFormattedExtension(number, metadata, PhoneNumberFormat.NATIONAL, formattedNumber);
1088 prefixNumberWithCountryCallingCode(countryCallingCode, PhoneNumberFormat.NATIONAL,
1090 return formattedNumber.toString();
1093 private PhoneMetadata getMetadataForRegionOrCallingCode(
1094 int countryCallingCode, String regionCode) {
1095 return REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCode)
1096 ? getMetadataForNonGeographicalRegion(countryCallingCode)
1097 : getMetadataForRegion(regionCode);
1101 * Formats a phone number in national format for dialing using the carrier as specified in the
1102 * preferredDomesticCarrierCode field of the PhoneNumber object passed in. If that is missing,
1103 * use the {@code fallbackCarrierCode} passed in instead. If there is no
1104 * {@code preferredDomesticCarrierCode}, and the {@code fallbackCarrierCode} contains an empty
1105 * string, return the number in national format without any carrier code.
1107 * <p>Use {@link #formatNationalNumberWithCarrierCode} instead if the carrier code passed in
1108 * should take precedence over the number's {@code preferredDomesticCarrierCode} when formatting.
1110 * @param number the phone number to be formatted
1111 * @param fallbackCarrierCode the carrier selection code to be used, if none is found in the
1112 * phone number itself
1113 * @return the formatted phone number in national format for dialing using the number's
1114 * {@code preferredDomesticCarrierCode}, or the {@code fallbackCarrierCode} passed in if
1117 public String formatNationalNumberWithPreferredCarrierCode(PhoneNumber number,
1118 String fallbackCarrierCode) {
1119 return formatNationalNumberWithCarrierCode(number, number.hasPreferredDomesticCarrierCode()
1120 ? number.getPreferredDomesticCarrierCode()
1121 : fallbackCarrierCode);
1125 * Returns a number formatted in such a way that it can be dialed from a mobile phone in a
1126 * specific region. If the number cannot be reached from the region (e.g. some countries block
1127 * toll-free numbers from being called outside of the country), the method returns an empty
1130 * @param number the phone number to be formatted
1131 * @param regionCallingFrom the region where the call is being placed
1132 * @param withFormatting whether the number should be returned with formatting symbols, such as
1133 * spaces and dashes.
1134 * @return the formatted phone number
1136 public String formatNumberForMobileDialing(PhoneNumber number, String regionCallingFrom,
1137 boolean withFormatting) {
1138 int countryCallingCode = number.getCountryCode();
1139 if (!hasValidCountryCallingCode(countryCallingCode)) {
1140 return number.hasRawInput() ? number.getRawInput() : "";
1143 String formattedNumber;
1144 // Clear the extension, as that part cannot normally be dialed together with the main number.
1145 PhoneNumber numberNoExt = new PhoneNumber().mergeFrom(number).clearExtension();
1146 PhoneNumberType numberType = getNumberType(numberNoExt);
1147 String regionCode = getRegionCodeForCountryCode(countryCallingCode);
1148 if (regionCode.equals("CO") && regionCallingFrom.equals("CO")) {
1149 if (numberType == PhoneNumberType.FIXED_LINE) {
1151 formatNationalNumberWithCarrierCode(numberNoExt, COLOMBIA_MOBILE_TO_FIXED_LINE_PREFIX);
1153 // E164 doesn't work at all when dialing within Colombia.
1154 formattedNumber = format(numberNoExt, PhoneNumberFormat.NATIONAL);
1156 } else if (regionCode.equals("PE") && regionCallingFrom.equals("PE")) {
1157 // In Peru, numbers cannot be dialled using E164 format from a mobile phone for Movistar.
1158 // Instead they must be dialled in national format.
1159 formattedNumber = format(numberNoExt, PhoneNumberFormat.NATIONAL);
1160 } else if (regionCode.equals("BR") && regionCallingFrom.equals("BR") &&
1161 ((numberType == PhoneNumberType.FIXED_LINE) || (numberType == PhoneNumberType.MOBILE) ||
1162 (numberType == PhoneNumberType.FIXED_LINE_OR_MOBILE))) {
1163 formattedNumber = numberNoExt.hasPreferredDomesticCarrierCode()
1164 ? formatNationalNumberWithPreferredCarrierCode(numberNoExt, "")
1165 // Brazilian fixed line and mobile numbers need to be dialed with a carrier code when
1166 // called within Brazil. Without that, most of the carriers won't connect the call.
1167 // Because of that, we return an empty string here.
1169 } else if (canBeInternationallyDialled(numberNoExt)) {
1170 return withFormatting ? format(numberNoExt, PhoneNumberFormat.INTERNATIONAL)
1171 : format(numberNoExt, PhoneNumberFormat.E164);
1173 formattedNumber = (regionCallingFrom.equals(regionCode))
1174 ? format(numberNoExt, PhoneNumberFormat.NATIONAL) : "";
1176 return withFormatting ? formattedNumber
1177 : normalizeHelper(formattedNumber, DIALLABLE_CHAR_MAPPINGS,
1178 true /* remove non matches */);
1182 * Formats a phone number for out-of-country dialing purposes. If no regionCallingFrom is
1183 * supplied, we format the number in its INTERNATIONAL format. If the country calling code is the
1184 * same as that of the region where the number is from, then NATIONAL formatting will be applied.
1186 * <p>If the number itself has a country calling code of zero or an otherwise invalid country
1187 * calling code, then we return the number with no formatting applied.
1189 * <p>Note this function takes care of the case for calling inside of NANPA and between Russia and
1190 * Kazakhstan (who share the same country calling code). In those cases, no international prefix
1191 * is used. For regions which have multiple international prefixes, the number in its
1192 * INTERNATIONAL format will be returned instead.
1194 * @param number the phone number to be formatted
1195 * @param regionCallingFrom the region where the call is being placed
1196 * @return the formatted phone number
1198 public String formatOutOfCountryCallingNumber(PhoneNumber number,
1199 String regionCallingFrom) {
1200 if (!isValidRegionCode(regionCallingFrom)) {
1201 LOGGER.log(Level.WARNING,
1202 "Trying to format number from invalid region "
1204 + ". International formatting applied.");
1205 return format(number, PhoneNumberFormat.INTERNATIONAL);
1207 int countryCallingCode = number.getCountryCode();
1208 String nationalSignificantNumber = getNationalSignificantNumber(number);
1209 if (!hasValidCountryCallingCode(countryCallingCode)) {
1210 return nationalSignificantNumber;
1212 if (countryCallingCode == NANPA_COUNTRY_CODE) {
1213 if (isNANPACountry(regionCallingFrom)) {
1214 // For NANPA regions, return the national format for these regions but prefix it with the
1215 // country calling code.
1216 return countryCallingCode + " " + format(number, PhoneNumberFormat.NATIONAL);
1218 } else if (countryCallingCode == getCountryCodeForValidRegion(regionCallingFrom)) {
1219 // For regions that share a country calling code, the country calling code need not be dialled.
1220 // This also applies when dialling within a region, so this if clause covers both these cases.
1221 // Technically this is the case for dialling from La Reunion to other overseas departments of
1222 // France (French Guiana, Martinique, Guadeloupe), but not vice versa - so we don't cover this
1223 // edge case for now and for those cases return the version including country calling code.
1224 // Details here: http://www.petitfute.com/voyage/225-info-pratiques-reunion
1225 return format(number, PhoneNumberFormat.NATIONAL);
1227 PhoneMetadata metadataForRegionCallingFrom = getMetadataForRegion(regionCallingFrom);
1228 String internationalPrefix = metadataForRegionCallingFrom.getInternationalPrefix();
1230 // For regions that have multiple international prefixes, the international format of the
1231 // number is returned, unless there is a preferred international prefix.
1232 String internationalPrefixForFormatting = "";
1233 if (UNIQUE_INTERNATIONAL_PREFIX.matcher(internationalPrefix).matches()) {
1234 internationalPrefixForFormatting = internationalPrefix;
1235 } else if (metadataForRegionCallingFrom.hasPreferredInternationalPrefix()) {
1236 internationalPrefixForFormatting =
1237 metadataForRegionCallingFrom.getPreferredInternationalPrefix();
1240 String regionCode = getRegionCodeForCountryCode(countryCallingCode);
1241 PhoneMetadata metadataForRegion =
1242 getMetadataForRegionOrCallingCode(countryCallingCode, regionCode);
1243 String formattedNationalNumber =
1244 formatNsn(nationalSignificantNumber, metadataForRegion, PhoneNumberFormat.INTERNATIONAL);
1245 StringBuilder formattedNumber = new StringBuilder(formattedNationalNumber);
1246 maybeAppendFormattedExtension(number, metadataForRegion, PhoneNumberFormat.INTERNATIONAL,
1248 if (internationalPrefixForFormatting.length() > 0) {
1249 formattedNumber.insert(0, " ").insert(0, countryCallingCode).insert(0, " ")
1250 .insert(0, internationalPrefixForFormatting);
1252 prefixNumberWithCountryCallingCode(countryCallingCode,
1253 PhoneNumberFormat.INTERNATIONAL,
1256 return formattedNumber.toString();
1260 * Formats a phone number using the original phone number format that the number is parsed from.
1261 * The original format is embedded in the country_code_source field of the PhoneNumber object
1262 * passed in. If such information is missing, the number will be formatted into the NATIONAL
1263 * format by default. When the number contains a leading zero and this is unexpected for this
1264 * country, or we don't have a formatting pattern for the number, the method returns the raw input
1265 * when it is available.
1267 * Note this method guarantees no digit will be inserted, removed or modified as a result of
1270 * @param number the phone number that needs to be formatted in its original number format
1271 * @param regionCallingFrom the region whose IDD needs to be prefixed if the original number
1273 * @return the formatted phone number in its original number format
1275 public String formatInOriginalFormat(PhoneNumber number, String regionCallingFrom) {
1276 if (number.hasRawInput() &&
1277 (hasUnexpectedItalianLeadingZero(number) || !hasFormattingPatternForNumber(number))) {
1278 // We check if we have the formatting pattern because without that, we might format the number
1279 // as a group without national prefix.
1280 return number.getRawInput();
1282 if (!number.hasCountryCodeSource()) {
1283 return format(number, PhoneNumberFormat.NATIONAL);
1285 String formattedNumber;
1286 switch (number.getCountryCodeSource()) {
1287 case FROM_NUMBER_WITH_PLUS_SIGN:
1288 formattedNumber = format(number, PhoneNumberFormat.INTERNATIONAL);
1290 case FROM_NUMBER_WITH_IDD:
1291 formattedNumber = formatOutOfCountryCallingNumber(number, regionCallingFrom);
1293 case FROM_NUMBER_WITHOUT_PLUS_SIGN:
1294 formattedNumber = format(number, PhoneNumberFormat.INTERNATIONAL).substring(1);
1296 case FROM_DEFAULT_COUNTRY:
1297 // Fall-through to default case.
1299 String regionCode = getRegionCodeForCountryCode(number.getCountryCode());
1300 // We strip non-digits from the NDD here, and from the raw input later, so that we can
1301 // compare them easily.
1302 String nationalPrefix = getNddPrefixForRegion(regionCode, true /* strip non-digits */);
1303 String nationalFormat = format(number, PhoneNumberFormat.NATIONAL);
1304 if (nationalPrefix == null || nationalPrefix.length() == 0) {
1305 // If the region doesn't have a national prefix at all, we can safely return the national
1306 // format without worrying about a national prefix being added.
1307 formattedNumber = nationalFormat;
1310 // Otherwise, we check if the original number was entered with a national prefix.
1311 if (rawInputContainsNationalPrefix(
1312 number.getRawInput(), nationalPrefix, regionCode)) {
1313 // If so, we can safely return the national format.
1314 formattedNumber = nationalFormat;
1317 PhoneMetadata metadata = getMetadataForRegion(regionCode);
1318 String nationalNumber = getNationalSignificantNumber(number);
1319 NumberFormat formatRule =
1320 chooseFormattingPatternForNumber(metadata.numberFormats(), nationalNumber);
1321 // When the format we apply to this number doesn't contain national prefix, we can just
1322 // return the national format.
1323 // TODO: Refactor the code below with the code in isNationalPrefixPresentIfRequired.
1324 String candidateNationalPrefixRule = formatRule.getNationalPrefixFormattingRule();
1325 // We assume that the first-group symbol will never be _before_ the national prefix.
1326 int indexOfFirstGroup = candidateNationalPrefixRule.indexOf("$1");
1327 if (indexOfFirstGroup <= 0) {
1328 formattedNumber = nationalFormat;
1331 candidateNationalPrefixRule =
1332 candidateNationalPrefixRule.substring(0, indexOfFirstGroup);
1333 candidateNationalPrefixRule = normalizeDigitsOnly(candidateNationalPrefixRule);
1334 if (candidateNationalPrefixRule.length() == 0) {
1335 // National prefix not used when formatting this number.
1336 formattedNumber = nationalFormat;
1339 // Otherwise, we need to remove the national prefix from our output.
1340 NumberFormat numFormatCopy = new NumberFormat();
1341 numFormatCopy.mergeFrom(formatRule);
1342 numFormatCopy.clearNationalPrefixFormattingRule();
1343 List<NumberFormat> numberFormats = new ArrayList<NumberFormat>(1);
1344 numberFormats.add(numFormatCopy);
1345 formattedNumber = formatByPattern(number, PhoneNumberFormat.NATIONAL, numberFormats);
1348 String rawInput = number.getRawInput();
1349 // If no digit is inserted/removed/modified as a result of our formatting, we return the
1350 // formatted phone number; otherwise we return the raw input the user entered.
1351 return (formattedNumber != null &&
1352 normalizeHelper(formattedNumber, DIALLABLE_CHAR_MAPPINGS, true /* remove non matches */)
1353 .equals(normalizeHelper(
1354 rawInput, DIALLABLE_CHAR_MAPPINGS, true /* remove non matches */)))
1359 // Check if rawInput, which is assumed to be in the national format, has a national prefix. The
1360 // national prefix is assumed to be in digits-only form.
1361 private boolean rawInputContainsNationalPrefix(String rawInput, String nationalPrefix,
1362 String regionCode) {
1363 String normalizedNationalNumber = normalizeDigitsOnly(rawInput);
1364 if (normalizedNationalNumber.startsWith(nationalPrefix)) {
1366 // Some Japanese numbers (e.g. 00777123) might be mistaken to contain the national prefix
1367 // when written without it (e.g. 0777123) if we just do prefix matching. To tackle that, we
1368 // check the validity of the number if the assumed national prefix is removed (777123 won't
1369 // be valid in Japan).
1370 return isValidNumber(
1371 parse(normalizedNationalNumber.substring(nationalPrefix.length()), regionCode));
1372 } catch (NumberParseException e) {
1380 * Returns true if a number is from a region whose national significant number couldn't contain a
1381 * leading zero, but has the italian_leading_zero field set to true.
1383 private boolean hasUnexpectedItalianLeadingZero(PhoneNumber number) {
1384 return number.isItalianLeadingZero() && !isLeadingZeroPossible(number.getCountryCode());
1387 private boolean hasFormattingPatternForNumber(PhoneNumber number) {
1388 int countryCallingCode = number.getCountryCode();
1389 String phoneNumberRegion = getRegionCodeForCountryCode(countryCallingCode);
1390 PhoneMetadata metadata =
1391 getMetadataForRegionOrCallingCode(countryCallingCode, phoneNumberRegion);
1392 if (metadata == null) {
1395 String nationalNumber = getNationalSignificantNumber(number);
1396 NumberFormat formatRule =
1397 chooseFormattingPatternForNumber(metadata.numberFormats(), nationalNumber);
1398 return formatRule != null;
1402 * Formats a phone number for out-of-country dialing purposes.
1404 * Note that in this version, if the number was entered originally using alpha characters and
1405 * this version of the number is stored in raw_input, this representation of the number will be
1406 * used rather than the digit representation. Grouping information, as specified by characters
1407 * such as "-" and " ", will be retained.
1409 * <p><b>Caveats:</b></p>
1411 * <li> This will not produce good results if the country calling code is both present in the raw
1412 * input _and_ is the start of the national number. This is not a problem in the regions
1413 * which typically use alpha numbers.
1414 * <li> This will also not produce good results if the raw input has any grouping information
1415 * within the first three digits of the national number, and if the function needs to strip
1416 * preceding digits/words in the raw input before these digits. Normally people group the
1417 * first three digits together so this is not a huge problem - and will be fixed if it
1421 * @param number the phone number that needs to be formatted
1422 * @param regionCallingFrom the region where the call is being placed
1423 * @return the formatted phone number
1425 public String formatOutOfCountryKeepingAlphaChars(PhoneNumber number,
1426 String regionCallingFrom) {
1427 String rawInput = number.getRawInput();
1428 // If there is no raw input, then we can't keep alpha characters because there aren't any.
1429 // In this case, we return formatOutOfCountryCallingNumber.
1430 if (rawInput.length() == 0) {
1431 return formatOutOfCountryCallingNumber(number, regionCallingFrom);
1433 int countryCode = number.getCountryCode();
1434 if (!hasValidCountryCallingCode(countryCode)) {
1437 // Strip any prefix such as country calling code, IDD, that was present. We do this by comparing
1438 // the number in raw_input with the parsed number.
1439 // To do this, first we normalize punctuation. We retain number grouping symbols such as " "
1441 rawInput = normalizeHelper(rawInput, ALL_PLUS_NUMBER_GROUPING_SYMBOLS, true);
1442 // Now we trim everything before the first three digits in the parsed number. We choose three
1443 // because all valid alpha numbers have 3 digits at the start - if it does not, then we don't
1444 // trim anything at all. Similarly, if the national number was less than three digits, we don't
1445 // trim anything at all.
1446 String nationalNumber = getNationalSignificantNumber(number);
1447 if (nationalNumber.length() > 3) {
1448 int firstNationalNumberDigit = rawInput.indexOf(nationalNumber.substring(0, 3));
1449 if (firstNationalNumberDigit != -1) {
1450 rawInput = rawInput.substring(firstNationalNumberDigit);
1453 PhoneMetadata metadataForRegionCallingFrom = getMetadataForRegion(regionCallingFrom);
1454 if (countryCode == NANPA_COUNTRY_CODE) {
1455 if (isNANPACountry(regionCallingFrom)) {
1456 return countryCode + " " + rawInput;
1458 } else if (isValidRegionCode(regionCallingFrom) &&
1459 countryCode == getCountryCodeForValidRegion(regionCallingFrom)) {
1460 NumberFormat formattingPattern =
1461 chooseFormattingPatternForNumber(metadataForRegionCallingFrom.numberFormats(),
1463 if (formattingPattern == null) {
1464 // If no pattern above is matched, we format the original input.
1467 NumberFormat newFormat = new NumberFormat();
1468 newFormat.mergeFrom(formattingPattern);
1469 // The first group is the first group of digits that the user wrote together.
1470 newFormat.setPattern("(\\d+)(.*)");
1471 // Here we just concatenate them back together after the national prefix has been fixed.
1472 newFormat.setFormat("$1$2");
1473 // Now we format using this pattern instead of the default pattern, but with the national
1474 // prefix prefixed if necessary.
1475 // This will not work in the cases where the pattern (and not the leading digits) decide
1476 // whether a national prefix needs to be used, since we have overridden the pattern to match
1477 // anything, but that is not the case in the metadata to date.
1478 return formatNsnUsingPattern(rawInput, newFormat, PhoneNumberFormat.NATIONAL);
1480 String internationalPrefixForFormatting = "";
1481 // If an unsupported region-calling-from is entered, or a country with multiple international
1482 // prefixes, the international format of the number is returned, unless there is a preferred
1483 // international prefix.
1484 if (metadataForRegionCallingFrom != null) {
1485 String internationalPrefix = metadataForRegionCallingFrom.getInternationalPrefix();
1486 internationalPrefixForFormatting =
1487 UNIQUE_INTERNATIONAL_PREFIX.matcher(internationalPrefix).matches()
1488 ? internationalPrefix
1489 : metadataForRegionCallingFrom.getPreferredInternationalPrefix();
1491 StringBuilder formattedNumber = new StringBuilder(rawInput);
1492 String regionCode = getRegionCodeForCountryCode(countryCode);
1493 PhoneMetadata metadataForRegion = getMetadataForRegionOrCallingCode(countryCode, regionCode);
1494 maybeAppendFormattedExtension(number, metadataForRegion,
1495 PhoneNumberFormat.INTERNATIONAL, formattedNumber);
1496 if (internationalPrefixForFormatting.length() > 0) {
1497 formattedNumber.insert(0, " ").insert(0, countryCode).insert(0, " ")
1498 .insert(0, internationalPrefixForFormatting);
1500 // Invalid region entered as country-calling-from (so no metadata was found for it) or the
1501 // region chosen has multiple international dialling prefixes.
1502 LOGGER.log(Level.WARNING,
1503 "Trying to format number from invalid region "
1505 + ". International formatting applied.");
1506 prefixNumberWithCountryCallingCode(countryCode,
1507 PhoneNumberFormat.INTERNATIONAL,
1510 return formattedNumber.toString();
1514 * Gets the national significant number of the a phone number. Note a national significant number
1515 * doesn't contain a national prefix or any formatting.
1517 * @param number the phone number for which the national significant number is needed
1518 * @return the national significant number of the PhoneNumber object passed in
1520 public String getNationalSignificantNumber(PhoneNumber number) {
1521 // If a leading zero has been set, we prefix this now. Note this is not a national prefix.
1522 StringBuilder nationalNumber = new StringBuilder(number.isItalianLeadingZero() ? "0" : "");
1523 nationalNumber.append(number.getNationalNumber());
1524 return nationalNumber.toString();
1528 * A helper function that is used by format and formatByPattern.
1530 private void prefixNumberWithCountryCallingCode(int countryCallingCode,
1531 PhoneNumberFormat numberFormat,
1532 StringBuilder formattedNumber) {
1533 switch (numberFormat) {
1535 formattedNumber.insert(0, countryCallingCode).insert(0, PLUS_SIGN);
1538 formattedNumber.insert(0, " ").insert(0, countryCallingCode).insert(0, PLUS_SIGN);
1541 formattedNumber.insert(0, "-").insert(0, countryCallingCode).insert(0, PLUS_SIGN)
1542 .insert(0, RFC3966_PREFIX);
1550 // Simple wrapper of formatNsn for the common case of no carrier code.
1551 private String formatNsn(String number, PhoneMetadata metadata, PhoneNumberFormat numberFormat) {
1552 return formatNsn(number, metadata, numberFormat, null);
1555 // Note in some regions, the national number can be written in two completely different ways
1556 // depending on whether it forms part of the NATIONAL format or INTERNATIONAL format. The
1557 // numberFormat parameter here is used to specify which format to use for those cases. If a
1558 // carrierCode is specified, this will be inserted into the formatted string to replace $CC.
1559 private String formatNsn(String number,
1560 PhoneMetadata metadata,
1561 PhoneNumberFormat numberFormat,
1562 String carrierCode) {
1563 List<NumberFormat> intlNumberFormats = metadata.intlNumberFormats();
1564 // When the intlNumberFormats exists, we use that to format national number for the
1565 // INTERNATIONAL format instead of using the numberDesc.numberFormats.
1566 List<NumberFormat> availableFormats =
1567 (intlNumberFormats.size() == 0 || numberFormat == PhoneNumberFormat.NATIONAL)
1568 ? metadata.numberFormats()
1569 : metadata.intlNumberFormats();
1570 NumberFormat formattingPattern = chooseFormattingPatternForNumber(availableFormats, number);
1571 return (formattingPattern == null)
1573 : formatNsnUsingPattern(number, formattingPattern, numberFormat, carrierCode);
1576 NumberFormat chooseFormattingPatternForNumber(List<NumberFormat> availableFormats,
1577 String nationalNumber) {
1578 for (NumberFormat numFormat : availableFormats) {
1579 int size = numFormat.leadingDigitsPatternSize();
1580 if (size == 0 || regexCache.getPatternForRegex(
1581 // We always use the last leading_digits_pattern, as it is the most detailed.
1582 numFormat.getLeadingDigitsPattern(size - 1)).matcher(nationalNumber).lookingAt()) {
1583 Matcher m = regexCache.getPatternForRegex(numFormat.getPattern()).matcher(nationalNumber);
1592 // Simple wrapper of formatNsnUsingPattern for the common case of no carrier code.
1593 String formatNsnUsingPattern(String nationalNumber,
1594 NumberFormat formattingPattern,
1595 PhoneNumberFormat numberFormat) {
1596 return formatNsnUsingPattern(nationalNumber, formattingPattern, numberFormat, null);
1599 // Note that carrierCode is optional - if NULL or an empty string, no carrier code replacement
1601 private String formatNsnUsingPattern(String nationalNumber,
1602 NumberFormat formattingPattern,
1603 PhoneNumberFormat numberFormat,
1604 String carrierCode) {
1605 String numberFormatRule = formattingPattern.getFormat();
1607 regexCache.getPatternForRegex(formattingPattern.getPattern()).matcher(nationalNumber);
1608 String formattedNationalNumber = "";
1609 if (numberFormat == PhoneNumberFormat.NATIONAL &&
1610 carrierCode != null && carrierCode.length() > 0 &&
1611 formattingPattern.getDomesticCarrierCodeFormattingRule().length() > 0) {
1612 // Replace the $CC in the formatting rule with the desired carrier code.
1613 String carrierCodeFormattingRule = formattingPattern.getDomesticCarrierCodeFormattingRule();
1614 carrierCodeFormattingRule =
1615 CC_PATTERN.matcher(carrierCodeFormattingRule).replaceFirst(carrierCode);
1616 // Now replace the $FG in the formatting rule with the first group and the carrier code
1617 // combined in the appropriate way.
1618 numberFormatRule = FIRST_GROUP_PATTERN.matcher(numberFormatRule)
1619 .replaceFirst(carrierCodeFormattingRule);
1620 formattedNationalNumber = m.replaceAll(numberFormatRule);
1622 // Use the national prefix formatting rule instead.
1623 String nationalPrefixFormattingRule = formattingPattern.getNationalPrefixFormattingRule();
1624 if (numberFormat == PhoneNumberFormat.NATIONAL &&
1625 nationalPrefixFormattingRule != null &&
1626 nationalPrefixFormattingRule.length() > 0) {
1627 Matcher firstGroupMatcher = FIRST_GROUP_PATTERN.matcher(numberFormatRule);
1628 formattedNationalNumber =
1629 m.replaceAll(firstGroupMatcher.replaceFirst(nationalPrefixFormattingRule));
1631 formattedNationalNumber = m.replaceAll(numberFormatRule);
1634 if (numberFormat == PhoneNumberFormat.RFC3966) {
1635 // Strip any leading punctuation.
1636 Matcher matcher = SEPARATOR_PATTERN.matcher(formattedNationalNumber);
1637 if (matcher.lookingAt()) {
1638 formattedNationalNumber = matcher.replaceFirst("");
1640 // Replace the rest with a dash between each number group.
1641 formattedNationalNumber = matcher.reset(formattedNationalNumber).replaceAll("-");
1643 return formattedNationalNumber;
1647 * Gets a valid number for the specified region.
1649 * @param regionCode the region for which an example number is needed
1650 * @return a valid fixed-line number for the specified region. Returns null when the metadata
1651 * does not contain such information, or the region 001 is passed in. For 001 (representing
1652 * non-geographical numbers), call {@link #getExampleNumberForNonGeoEntity} instead.
1654 public PhoneNumber getExampleNumber(String regionCode) {
1655 return getExampleNumberForType(regionCode, PhoneNumberType.FIXED_LINE);
1659 * Gets a valid number for the specified region and number type.
1661 * @param regionCode the region for which an example number is needed
1662 * @param type the type of number that is needed
1663 * @return a valid number for the specified region and type. Returns null when the metadata
1664 * does not contain such information or if an invalid region or region 001 was entered.
1665 * For 001 (representing non-geographical numbers), call
1666 * {@link #getExampleNumberForNonGeoEntity} instead.
1668 public PhoneNumber getExampleNumberForType(String regionCode, PhoneNumberType type) {
1669 // Check the region code is valid.
1670 if (!isValidRegionCode(regionCode)) {
1671 LOGGER.log(Level.WARNING, "Invalid or unknown region code provided: " + regionCode);
1674 PhoneNumberDesc desc = getNumberDescByType(getMetadataForRegion(regionCode), type);
1676 if (desc.hasExampleNumber()) {
1677 return parse(desc.getExampleNumber(), regionCode);
1679 } catch (NumberParseException e) {
1680 LOGGER.log(Level.SEVERE, e.toString());
1686 * Gets a valid number for the specified country calling code for a non-geographical entity.
1688 * @param countryCallingCode the country calling code for a non-geographical entity
1689 * @return a valid number for the non-geographical entity. Returns null when the metadata
1690 * does not contain such information, or the country calling code passed in does not belong
1691 * to a non-geographical entity.
1693 public PhoneNumber getExampleNumberForNonGeoEntity(int countryCallingCode) {
1694 PhoneMetadata metadata = getMetadataForNonGeographicalRegion(countryCallingCode);
1695 if (metadata != null) {
1696 PhoneNumberDesc desc = metadata.getGeneralDesc();
1698 if (desc.hasExampleNumber()) {
1699 return parse("+" + countryCallingCode + desc.getExampleNumber(), "ZZ");
1701 } catch (NumberParseException e) {
1702 LOGGER.log(Level.SEVERE, e.toString());
1705 LOGGER.log(Level.WARNING,
1706 "Invalid or unknown country calling code provided: " + countryCallingCode);
1712 * Appends the formatted extension of a phone number to formattedNumber, if the phone number had
1713 * an extension specified.
1715 private void maybeAppendFormattedExtension(PhoneNumber number, PhoneMetadata metadata,
1716 PhoneNumberFormat numberFormat,
1717 StringBuilder formattedNumber) {
1718 if (number.hasExtension() && number.getExtension().length() > 0) {
1719 if (numberFormat == PhoneNumberFormat.RFC3966) {
1720 formattedNumber.append(RFC3966_EXTN_PREFIX).append(number.getExtension());
1722 if (metadata.hasPreferredExtnPrefix()) {
1723 formattedNumber.append(metadata.getPreferredExtnPrefix()).append(number.getExtension());
1725 formattedNumber.append(DEFAULT_EXTN_PREFIX).append(number.getExtension());
1731 PhoneNumberDesc getNumberDescByType(PhoneMetadata metadata, PhoneNumberType type) {
1734 return metadata.getPremiumRate();
1736 return metadata.getTollFree();
1738 return metadata.getMobile();
1740 case FIXED_LINE_OR_MOBILE:
1741 return metadata.getFixedLine();
1743 return metadata.getSharedCost();
1745 return metadata.getVoip();
1746 case PERSONAL_NUMBER:
1747 return metadata.getPersonalNumber();
1749 return metadata.getPager();
1751 return metadata.getUan();
1753 return metadata.getVoicemail();
1755 return metadata.getGeneralDesc();
1760 * Gets the type of a phone number.
1762 * @param number the phone number that we want to know the type
1763 * @return the type of the phone number
1765 public PhoneNumberType getNumberType(PhoneNumber number) {
1766 String regionCode = getRegionCodeForNumber(number);
1767 if (!isValidRegionCode(regionCode) && !REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCode)) {
1768 return PhoneNumberType.UNKNOWN;
1770 String nationalSignificantNumber = getNationalSignificantNumber(number);
1771 PhoneMetadata metadata = getMetadataForRegionOrCallingCode(number.getCountryCode(), regionCode);
1772 return getNumberTypeHelper(nationalSignificantNumber, metadata);
1775 private PhoneNumberType getNumberTypeHelper(String nationalNumber, PhoneMetadata metadata) {
1776 PhoneNumberDesc generalNumberDesc = metadata.getGeneralDesc();
1777 if (!generalNumberDesc.hasNationalNumberPattern() ||
1778 !isNumberMatchingDesc(nationalNumber, generalNumberDesc)) {
1779 return PhoneNumberType.UNKNOWN;
1782 if (isNumberMatchingDesc(nationalNumber, metadata.getPremiumRate())) {
1783 return PhoneNumberType.PREMIUM_RATE;
1785 if (isNumberMatchingDesc(nationalNumber, metadata.getTollFree())) {
1786 return PhoneNumberType.TOLL_FREE;
1788 if (isNumberMatchingDesc(nationalNumber, metadata.getSharedCost())) {
1789 return PhoneNumberType.SHARED_COST;
1791 if (isNumberMatchingDesc(nationalNumber, metadata.getVoip())) {
1792 return PhoneNumberType.VOIP;
1794 if (isNumberMatchingDesc(nationalNumber, metadata.getPersonalNumber())) {
1795 return PhoneNumberType.PERSONAL_NUMBER;
1797 if (isNumberMatchingDesc(nationalNumber, metadata.getPager())) {
1798 return PhoneNumberType.PAGER;
1800 if (isNumberMatchingDesc(nationalNumber, metadata.getUan())) {
1801 return PhoneNumberType.UAN;
1803 if (isNumberMatchingDesc(nationalNumber, metadata.getVoicemail())) {
1804 return PhoneNumberType.VOICEMAIL;
1807 boolean isFixedLine = isNumberMatchingDesc(nationalNumber, metadata.getFixedLine());
1809 if (metadata.isSameMobileAndFixedLinePattern()) {
1810 return PhoneNumberType.FIXED_LINE_OR_MOBILE;
1811 } else if (isNumberMatchingDesc(nationalNumber, metadata.getMobile())) {
1812 return PhoneNumberType.FIXED_LINE_OR_MOBILE;
1814 return PhoneNumberType.FIXED_LINE;
1816 // Otherwise, test to see if the number is mobile. Only do this if certain that the patterns for
1817 // mobile and fixed line aren't the same.
1818 if (!metadata.isSameMobileAndFixedLinePattern() &&
1819 isNumberMatchingDesc(nationalNumber, metadata.getMobile())) {
1820 return PhoneNumberType.MOBILE;
1822 return PhoneNumberType.UNKNOWN;
1825 PhoneMetadata getMetadataForRegion(String regionCode) {
1826 if (!isValidRegionCode(regionCode)) {
1829 synchronized (regionToMetadataMap) {
1830 if (!regionToMetadataMap.containsKey(regionCode)) {
1831 // The regionCode here will be valid and won't be '001', so we don't need to worry about
1832 // what to pass in for the country calling code.
1833 loadMetadataFromFile(currentFilePrefix, regionCode, 0);
1836 return regionToMetadataMap.get(regionCode);
1839 PhoneMetadata getMetadataForNonGeographicalRegion(int countryCallingCode) {
1840 synchronized (countryCodeToNonGeographicalMetadataMap) {
1841 if (!countryCallingCodeToRegionCodeMap.containsKey(countryCallingCode)) {
1844 if (!countryCodeToNonGeographicalMetadataMap.containsKey(countryCallingCode)) {
1845 loadMetadataFromFile(currentFilePrefix, REGION_CODE_FOR_NON_GEO_ENTITY, countryCallingCode);
1848 return countryCodeToNonGeographicalMetadataMap.get(countryCallingCode);
1851 private boolean isNumberMatchingDesc(String nationalNumber, PhoneNumberDesc numberDesc) {
1852 Matcher possibleNumberPatternMatcher =
1853 regexCache.getPatternForRegex(numberDesc.getPossibleNumberPattern())
1854 .matcher(nationalNumber);
1855 Matcher nationalNumberPatternMatcher =
1856 regexCache.getPatternForRegex(numberDesc.getNationalNumberPattern())
1857 .matcher(nationalNumber);
1858 return possibleNumberPatternMatcher.matches() && nationalNumberPatternMatcher.matches();
1862 * Tests whether a phone number matches a valid pattern. Note this doesn't verify the number
1863 * is actually in use, which is impossible to tell by just looking at a number itself.
1865 * @param number the phone number that we want to validate
1866 * @return a boolean that indicates whether the number is of a valid pattern
1868 public boolean isValidNumber(PhoneNumber number) {
1869 String regionCode = getRegionCodeForNumber(number);
1870 return isValidNumberForRegion(number, regionCode);
1874 * Tests whether a phone number is valid for a certain region. Note this doesn't verify the number
1875 * is actually in use, which is impossible to tell by just looking at a number itself. If the
1876 * country calling code is not the same as the country calling code for the region, this
1877 * immediately exits with false. After this, the specific number pattern rules for the region are
1878 * examined. This is useful for determining for example whether a particular number is valid for
1879 * Canada, rather than just a valid NANPA number.
1881 * @param number the phone number that we want to validate
1882 * @param regionCode the region that we want to validate the phone number for
1883 * @return a boolean that indicates whether the number is of a valid pattern
1885 public boolean isValidNumberForRegion(PhoneNumber number, String regionCode) {
1886 int countryCode = number.getCountryCode();
1887 PhoneMetadata metadata = getMetadataForRegionOrCallingCode(countryCode, regionCode);
1888 if ((metadata == null) ||
1889 (!REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCode) &&
1890 countryCode != getCountryCodeForValidRegion(regionCode))) {
1891 // Either the region code was invalid, or the country calling code for this number does not
1892 // match that of the region code.
1895 PhoneNumberDesc generalNumDesc = metadata.getGeneralDesc();
1896 String nationalSignificantNumber = getNationalSignificantNumber(number);
1898 // For regions where we don't have metadata for PhoneNumberDesc, we treat any number passed in
1899 // as a valid number if its national significant number is between the minimum and maximum
1900 // lengths defined by ITU for a national significant number.
1901 if (!generalNumDesc.hasNationalNumberPattern()) {
1902 int numberLength = nationalSignificantNumber.length();
1903 return numberLength > MIN_LENGTH_FOR_NSN && numberLength <= MAX_LENGTH_FOR_NSN;
1905 return getNumberTypeHelper(nationalSignificantNumber, metadata) != PhoneNumberType.UNKNOWN;
1909 * Returns the region where a phone number is from. This could be used for geocoding at the region
1912 * @param number the phone number whose origin we want to know
1913 * @return the region where the phone number is from, or null if no region matches this calling
1916 public String getRegionCodeForNumber(PhoneNumber number) {
1917 int countryCode = number.getCountryCode();
1918 List<String> regions = countryCallingCodeToRegionCodeMap.get(countryCode);
1919 if (regions == null) {
1920 String numberString = getNationalSignificantNumber(number);
1921 LOGGER.log(Level.WARNING,
1922 "Missing/invalid country_code (" + countryCode + ") for number " + numberString);
1925 if (regions.size() == 1) {
1926 return regions.get(0);
1928 return getRegionCodeForNumberFromRegionList(number, regions);
1932 private String getRegionCodeForNumberFromRegionList(PhoneNumber number,
1933 List<String> regionCodes) {
1934 String nationalNumber = getNationalSignificantNumber(number);
1935 for (String regionCode : regionCodes) {
1936 // If leadingDigits is present, use this. Otherwise, do full validation.
1937 PhoneMetadata metadata = getMetadataForRegion(regionCode);
1938 if (metadata.hasLeadingDigits()) {
1939 if (regexCache.getPatternForRegex(metadata.getLeadingDigits())
1940 .matcher(nationalNumber).lookingAt()) {
1943 } else if (getNumberTypeHelper(nationalNumber, metadata) != PhoneNumberType.UNKNOWN) {
1951 * Returns the region code that matches the specific country calling code. In the case of no
1952 * region code being found, ZZ will be returned. In the case of multiple regions, the one
1953 * designated in the metadata as the "main" region for this calling code will be returned.
1955 public String getRegionCodeForCountryCode(int countryCallingCode) {
1956 List<String> regionCodes = countryCallingCodeToRegionCodeMap.get(countryCallingCode);
1957 return regionCodes == null ? UNKNOWN_REGION : regionCodes.get(0);
1961 * Returns the country calling code for a specific region. For example, this would be 1 for the
1962 * United States, and 64 for New Zealand.
1964 * @param regionCode the region that we want to get the country calling code for
1965 * @return the country calling code for the region denoted by regionCode
1967 public int getCountryCodeForRegion(String regionCode) {
1968 if (!isValidRegionCode(regionCode)) {
1969 LOGGER.log(Level.WARNING,
1970 "Invalid or missing region code ("
1971 + ((regionCode == null) ? "null" : regionCode)
1975 return getCountryCodeForValidRegion(regionCode);
1979 * Returns the country calling code for a specific region. For example, this would be 1 for the
1980 * United States, and 64 for New Zealand. Assumes the region is already valid.
1982 * @param regionCode the region that we want to get the country calling code for
1983 * @return the country calling code for the region denoted by regionCode
1985 private int getCountryCodeForValidRegion(String regionCode) {
1986 PhoneMetadata metadata = getMetadataForRegion(regionCode);
1987 return metadata.getCountryCode();
1991 * Returns the national dialling prefix for a specific region. For example, this would be 1 for
1992 * the United States, and 0 for New Zealand. Set stripNonDigits to true to strip symbols like "~"
1993 * (which indicates a wait for a dialling tone) from the prefix returned. If no national prefix is
1994 * present, we return null.
1996 * <p>Warning: Do not use this method for do-your-own formatting - for some regions, the
1997 * national dialling prefix is used only for certain types of numbers. Use the library's
1998 * formatting functions to prefix the national prefix when required.
2000 * @param regionCode the region that we want to get the dialling prefix for
2001 * @param stripNonDigits true to strip non-digits from the national dialling prefix
2002 * @return the dialling prefix for the region denoted by regionCode
2004 public String getNddPrefixForRegion(String regionCode, boolean stripNonDigits) {
2005 if (!isValidRegionCode(regionCode)) {
2006 LOGGER.log(Level.WARNING,
2007 "Invalid or missing region code ("
2008 + ((regionCode == null) ? "null" : regionCode)
2012 PhoneMetadata metadata = getMetadataForRegion(regionCode);
2013 String nationalPrefix = metadata.getNationalPrefix();
2014 // If no national prefix was found, we return null.
2015 if (nationalPrefix.length() == 0) {
2018 if (stripNonDigits) {
2019 // Note: if any other non-numeric symbols are ever used in national prefixes, these would have
2020 // to be removed here as well.
2021 nationalPrefix = nationalPrefix.replace("~", "");
2023 return nationalPrefix;
2027 * Checks if this is a region under the North American Numbering Plan Administration (NANPA).
2029 * @return true if regionCode is one of the regions under NANPA
2031 public boolean isNANPACountry(String regionCode) {
2032 return nanpaRegions.contains(regionCode);
2036 * Checks whether the country calling code is from a region whose national significant number
2037 * could contain a leading zero. An example of such a region is Italy. Returns false if no
2038 * metadata for the country is found.
2040 boolean isLeadingZeroPossible(int countryCallingCode) {
2041 PhoneMetadata mainMetadataForCallingCode = getMetadataForRegion(
2042 getRegionCodeForCountryCode(countryCallingCode));
2043 if (mainMetadataForCallingCode == null) {
2046 return mainMetadataForCallingCode.isLeadingZeroPossible();
2050 * Checks if the number is a valid vanity (alpha) number such as 800 MICROSOFT. A valid vanity
2051 * number will start with at least 3 digits and will have three or more alpha characters. This
2052 * does not do region-specific checks - to work out if this number is actually valid for a region,
2053 * it should be parsed and methods such as {@link #isPossibleNumberWithReason} and
2054 * {@link #isValidNumber} should be used.
2056 * @param number the number that needs to be checked
2057 * @return true if the number is a valid vanity number
2059 public boolean isAlphaNumber(String number) {
2060 if (!isViablePhoneNumber(number)) {
2061 // Number is too short, or doesn't match the basic phone number pattern.
2064 StringBuilder strippedNumber = new StringBuilder(number);
2065 maybeStripExtension(strippedNumber);
2066 return VALID_ALPHA_PHONE_PATTERN.matcher(strippedNumber).matches();
2070 * Convenience wrapper around {@link #isPossibleNumberWithReason}. Instead of returning the reason
2071 * for failure, this method returns a boolean value.
2072 * @param number the number that needs to be checked
2073 * @return true if the number is possible
2075 public boolean isPossibleNumber(PhoneNumber number) {
2076 return isPossibleNumberWithReason(number) == ValidationResult.IS_POSSIBLE;
2080 * Helper method to check a number against a particular pattern and determine whether it matches,
2081 * or is too short or too long. Currently, if a number pattern suggests that numbers of length 7
2082 * and 10 are possible, and a number in between these possible lengths is entered, such as of
2083 * length 8, this will return TOO_LONG.
2085 private ValidationResult testNumberLengthAgainstPattern(Pattern numberPattern, String number) {
2086 Matcher numberMatcher = numberPattern.matcher(number);
2087 if (numberMatcher.matches()) {
2088 return ValidationResult.IS_POSSIBLE;
2090 if (numberMatcher.lookingAt()) {
2091 return ValidationResult.TOO_LONG;
2093 return ValidationResult.TOO_SHORT;
2098 * Check whether a phone number is a possible number. It provides a more lenient check than
2099 * {@link #isValidNumber} in the following sense:
2101 * <li> It only checks the length of phone numbers. In particular, it doesn't check starting
2102 * digits of the number.
2103 * <li> It doesn't attempt to figure out the type of the number, but uses general rules which
2104 * applies to all types of phone numbers in a region. Therefore, it is much faster than
2106 * <li> For fixed line numbers, many regions have the concept of area code, which together with
2107 * subscriber number constitute the national significant number. It is sometimes okay to dial
2108 * the subscriber number only when dialing in the same area. This function will return
2109 * true if the subscriber-number-only version is passed in. On the other hand, because
2110 * isValidNumber validates using information on both starting digits (for fixed line
2111 * numbers, that would most likely be area codes) and length (obviously includes the
2112 * length of area codes for fixed line numbers), it will return false for the
2113 * subscriber-number-only version.
2115 * @param number the number that needs to be checked
2116 * @return a ValidationResult object which indicates whether the number is possible
2118 public ValidationResult isPossibleNumberWithReason(PhoneNumber number) {
2119 String nationalNumber = getNationalSignificantNumber(number);
2120 int countryCode = number.getCountryCode();
2121 // Note: For Russian Fed and NANPA numbers, we just use the rules from the default region (US or
2122 // Russia) since the getRegionCodeForNumber will not work if the number is possible but not
2123 // valid. This would need to be revisited if the possible number pattern ever differed between
2124 // various regions within those plans.
2125 if (!hasValidCountryCallingCode(countryCode)) {
2126 return ValidationResult.INVALID_COUNTRY_CODE;
2128 String regionCode = getRegionCodeForCountryCode(countryCode);
2129 PhoneMetadata metadata = getMetadataForRegionOrCallingCode(countryCode, regionCode);
2130 PhoneNumberDesc generalNumDesc = metadata.getGeneralDesc();
2131 // Handling case of numbers with no metadata.
2132 if (!generalNumDesc.hasNationalNumberPattern()) {
2133 LOGGER.log(Level.FINER, "Checking if number is possible with incomplete metadata.");
2134 int numberLength = nationalNumber.length();
2135 if (numberLength < MIN_LENGTH_FOR_NSN) {
2136 return ValidationResult.TOO_SHORT;
2137 } else if (numberLength > MAX_LENGTH_FOR_NSN) {
2138 return ValidationResult.TOO_LONG;
2140 return ValidationResult.IS_POSSIBLE;
2143 Pattern possibleNumberPattern =
2144 regexCache.getPatternForRegex(generalNumDesc.getPossibleNumberPattern());
2145 return testNumberLengthAgainstPattern(possibleNumberPattern, nationalNumber);
2149 * Check whether a phone number is a possible number given a number in the form of a string, and
2150 * the region where the number could be dialed from. It provides a more lenient check than
2151 * {@link #isValidNumber}. See {@link #isPossibleNumber(PhoneNumber)} for details.
2153 * <p>This method first parses the number, then invokes {@link #isPossibleNumber(PhoneNumber)}
2154 * with the resultant PhoneNumber object.
2156 * @param number the number that needs to be checked, in the form of a string
2157 * @param regionDialingFrom the region that we are expecting the number to be dialed from.
2158 * Note this is different from the region where the number belongs. For example, the number
2159 * +1 650 253 0000 is a number that belongs to US. When written in this form, it can be
2160 * dialed from any region. When it is written as 00 1 650 253 0000, it can be dialed from any
2161 * region which uses an international dialling prefix of 00. When it is written as
2162 * 650 253 0000, it can only be dialed from within the US, and when written as 253 0000, it
2163 * can only be dialed from within a smaller area in the US (Mountain View, CA, to be more
2165 * @return true if the number is possible
2167 public boolean isPossibleNumber(String number, String regionDialingFrom) {
2169 return isPossibleNumber(parse(number, regionDialingFrom));
2170 } catch (NumberParseException e) {
2176 * Attempts to extract a valid number from a phone number that is too long to be valid, and resets
2177 * the PhoneNumber object passed in to that valid version. If no valid number could be extracted,
2178 * the PhoneNumber object passed in will not be modified.
2179 * @param number a PhoneNumber object which contains a number that is too long to be valid.
2180 * @return true if a valid phone number can be successfully extracted.
2182 public boolean truncateTooLongNumber(PhoneNumber number) {
2183 if (isValidNumber(number)) {
2186 PhoneNumber numberCopy = new PhoneNumber();
2187 numberCopy.mergeFrom(number);
2188 long nationalNumber = number.getNationalNumber();
2190 nationalNumber /= 10;
2191 numberCopy.setNationalNumber(nationalNumber);
2192 if (isPossibleNumberWithReason(numberCopy) == ValidationResult.TOO_SHORT ||
2193 nationalNumber == 0) {
2196 } while (!isValidNumber(numberCopy));
2197 number.setNationalNumber(nationalNumber);
2202 * Gets an {@link com.google.i18n.phonenumbers.AsYouTypeFormatter} for the specific region.
2204 * @param regionCode the region where the phone number is being entered
2205 * @return an {@link com.google.i18n.phonenumbers.AsYouTypeFormatter} object, which can be used
2206 * to format phone numbers in the specific region "as you type"
2208 public AsYouTypeFormatter getAsYouTypeFormatter(String regionCode) {
2209 return new AsYouTypeFormatter(regionCode);
2212 // Extracts country calling code from fullNumber, returns it and places the remaining number in
2213 // nationalNumber. It assumes that the leading plus sign or IDD has already been removed. Returns
2214 // 0 if fullNumber doesn't start with a valid country calling code, and leaves nationalNumber
2216 int extractCountryCode(StringBuilder fullNumber, StringBuilder nationalNumber) {
2217 if ((fullNumber.length() == 0) || (fullNumber.charAt(0) == '0')) {
2218 // Country codes do not begin with a '0'.
2221 int potentialCountryCode;
2222 int numberLength = fullNumber.length();
2223 for (int i = 1; i <= MAX_LENGTH_COUNTRY_CODE && i <= numberLength; i++) {
2224 potentialCountryCode = Integer.parseInt(fullNumber.substring(0, i));
2225 if (countryCallingCodeToRegionCodeMap.containsKey(potentialCountryCode)) {
2226 nationalNumber.append(fullNumber.substring(i));
2227 return potentialCountryCode;
2234 * Tries to extract a country calling code from a number. This method will return zero if no
2235 * country calling code is considered to be present. Country calling codes are extracted in the
2238 * <li> by stripping the international dialing prefix of the region the person is dialing from,
2239 * if this is present in the number, and looking at the next digits
2240 * <li> by stripping the '+' sign if present and then looking at the next digits
2241 * <li> by comparing the start of the number and the country calling code of the default region.
2242 * If the number is not considered possible for the numbering plan of the default region
2243 * initially, but starts with the country calling code of this region, validation will be
2244 * reattempted after stripping this country calling code. If this number is considered a
2245 * possible number, then the first digits will be considered the country calling code and
2248 * It will throw a NumberParseException if the number starts with a '+' but the country calling
2249 * code supplied after this does not match that of any known region.
2251 * @param number non-normalized telephone number that we wish to extract a country calling
2252 * code from - may begin with '+'
2253 * @param defaultRegionMetadata metadata about the region this number may be from
2254 * @param nationalNumber a string buffer to store the national significant number in, in the case
2255 * that a country calling code was extracted. The number is appended to any existing contents.
2256 * If no country calling code was extracted, this will be left unchanged.
2257 * @param keepRawInput true if the country_code_source and preferred_carrier_code fields of
2258 * phoneNumber should be populated.
2259 * @param phoneNumber the PhoneNumber object where the country_code and country_code_source need
2260 * to be populated. Note the country_code is always populated, whereas country_code_source is
2261 * only populated when keepCountryCodeSource is true.
2262 * @return the country calling code extracted or 0 if none could be extracted
2264 // @VisibleForTesting
2265 int maybeExtractCountryCode(String number, PhoneMetadata defaultRegionMetadata,
2266 StringBuilder nationalNumber, boolean keepRawInput,
2267 PhoneNumber phoneNumber)
2268 throws NumberParseException {
2269 if (number.length() == 0) {
2272 StringBuilder fullNumber = new StringBuilder(number);
2273 // Set the default prefix to be something that will never match.
2274 String possibleCountryIddPrefix = "NonMatch";
2275 if (defaultRegionMetadata != null) {
2276 possibleCountryIddPrefix = defaultRegionMetadata.getInternationalPrefix();
2279 CountryCodeSource countryCodeSource =
2280 maybeStripInternationalPrefixAndNormalize(fullNumber, possibleCountryIddPrefix);
2282 phoneNumber.setCountryCodeSource(countryCodeSource);
2284 if (countryCodeSource != CountryCodeSource.FROM_DEFAULT_COUNTRY) {
2285 if (fullNumber.length() <= MIN_LENGTH_FOR_NSN) {
2286 throw new NumberParseException(NumberParseException.ErrorType.TOO_SHORT_AFTER_IDD,
2287 "Phone number had an IDD, but after this was not "
2288 + "long enough to be a viable phone number.");
2290 int potentialCountryCode = extractCountryCode(fullNumber, nationalNumber);
2291 if (potentialCountryCode != 0) {
2292 phoneNumber.setCountryCode(potentialCountryCode);
2293 return potentialCountryCode;
2296 // If this fails, they must be using a strange country calling code that we don't recognize,
2297 // or that doesn't exist.
2298 throw new NumberParseException(NumberParseException.ErrorType.INVALID_COUNTRY_CODE,
2299 "Country calling code supplied was not recognised.");
2300 } else if (defaultRegionMetadata != null) {
2301 // Check to see if the number starts with the country calling code for the default region. If
2302 // so, we remove the country calling code, and do some checks on the validity of the number
2303 // before and after.
2304 int defaultCountryCode = defaultRegionMetadata.getCountryCode();
2305 String defaultCountryCodeString = String.valueOf(defaultCountryCode);
2306 String normalizedNumber = fullNumber.toString();
2307 if (normalizedNumber.startsWith(defaultCountryCodeString)) {
2308 StringBuilder potentialNationalNumber =
2309 new StringBuilder(normalizedNumber.substring(defaultCountryCodeString.length()));
2310 PhoneNumberDesc generalDesc = defaultRegionMetadata.getGeneralDesc();
2311 Pattern validNumberPattern =
2312 regexCache.getPatternForRegex(generalDesc.getNationalNumberPattern());
2313 maybeStripNationalPrefixAndCarrierCode(
2314 potentialNationalNumber, defaultRegionMetadata, null /* Don't need the carrier code */);
2315 Pattern possibleNumberPattern =
2316 regexCache.getPatternForRegex(generalDesc.getPossibleNumberPattern());
2317 // If the number was not valid before but is valid now, or if it was too long before, we
2318 // consider the number with the country calling code stripped to be a better result and
2319 // keep that instead.
2320 if ((!validNumberPattern.matcher(fullNumber).matches() &&
2321 validNumberPattern.matcher(potentialNationalNumber).matches()) ||
2322 testNumberLengthAgainstPattern(possibleNumberPattern, fullNumber.toString())
2323 == ValidationResult.TOO_LONG) {
2324 nationalNumber.append(potentialNationalNumber);
2326 phoneNumber.setCountryCodeSource(CountryCodeSource.FROM_NUMBER_WITHOUT_PLUS_SIGN);
2328 phoneNumber.setCountryCode(defaultCountryCode);
2329 return defaultCountryCode;
2333 // No country calling code present.
2334 phoneNumber.setCountryCode(0);
2339 * Strips the IDD from the start of the number if present. Helper function used by
2340 * maybeStripInternationalPrefixAndNormalize.
2342 private boolean parsePrefixAsIdd(Pattern iddPattern, StringBuilder number) {
2343 Matcher m = iddPattern.matcher(number);
2344 if (m.lookingAt()) {
2345 int matchEnd = m.end();
2346 // Only strip this if the first digit after the match is not a 0, since country calling codes
2347 // cannot begin with 0.
2348 Matcher digitMatcher = CAPTURING_DIGIT_PATTERN.matcher(number.substring(matchEnd));
2349 if (digitMatcher.find()) {
2350 String normalizedGroup = normalizeDigitsOnly(digitMatcher.group(1));
2351 if (normalizedGroup.equals("0")) {
2355 number.delete(0, matchEnd);
2362 * Strips any international prefix (such as +, 00, 011) present in the number provided, normalizes
2363 * the resulting number, and indicates if an international prefix was present.
2365 * @param number the non-normalized telephone number that we wish to strip any international
2366 * dialing prefix from.
2367 * @param possibleIddPrefix the international direct dialing prefix from the region we
2368 * think this number may be dialed in
2369 * @return the corresponding CountryCodeSource if an international dialing prefix could be
2370 * removed from the number, otherwise CountryCodeSource.FROM_DEFAULT_COUNTRY if the number did
2371 * not seem to be in international format.
2373 // @VisibleForTesting
2374 CountryCodeSource maybeStripInternationalPrefixAndNormalize(
2375 StringBuilder number,
2376 String possibleIddPrefix) {
2377 if (number.length() == 0) {
2378 return CountryCodeSource.FROM_DEFAULT_COUNTRY;
2380 // Check to see if the number begins with one or more plus signs.
2381 Matcher m = PLUS_CHARS_PATTERN.matcher(number);
2382 if (m.lookingAt()) {
2383 number.delete(0, m.end());
2384 // Can now normalize the rest of the number since we've consumed the "+" sign at the start.
2386 return CountryCodeSource.FROM_NUMBER_WITH_PLUS_SIGN;
2388 // Attempt to parse the first digits as an international prefix.
2389 Pattern iddPattern = regexCache.getPatternForRegex(possibleIddPrefix);
2391 return parsePrefixAsIdd(iddPattern, number)
2392 ? CountryCodeSource.FROM_NUMBER_WITH_IDD
2393 : CountryCodeSource.FROM_DEFAULT_COUNTRY;
2397 * Strips any national prefix (such as 0, 1) present in the number provided.
2399 * @param number the normalized telephone number that we wish to strip any national
2400 * dialing prefix from
2401 * @param metadata the metadata for the region that we think this number is from
2402 * @param carrierCode a place to insert the carrier code if one is extracted
2403 * @return true if a national prefix or carrier code (or both) could be extracted.
2405 // @VisibleForTesting
2406 boolean maybeStripNationalPrefixAndCarrierCode(
2407 StringBuilder number, PhoneMetadata metadata, StringBuilder carrierCode) {
2408 int numberLength = number.length();
2409 String possibleNationalPrefix = metadata.getNationalPrefixForParsing();
2410 if (numberLength == 0 || possibleNationalPrefix.length() == 0) {
2411 // Early return for numbers of zero length.
2414 // Attempt to parse the first digits as a national prefix.
2415 Matcher prefixMatcher = regexCache.getPatternForRegex(possibleNationalPrefix).matcher(number);
2416 if (prefixMatcher.lookingAt()) {
2417 Pattern nationalNumberRule =
2418 regexCache.getPatternForRegex(metadata.getGeneralDesc().getNationalNumberPattern());
2419 // Check if the original number is viable.
2420 boolean isViableOriginalNumber = nationalNumberRule.matcher(number).matches();
2421 // prefixMatcher.group(numOfGroups) == null implies nothing was captured by the capturing
2422 // groups in possibleNationalPrefix; therefore, no transformation is necessary, and we just
2423 // remove the national prefix.
2424 int numOfGroups = prefixMatcher.groupCount();
2425 String transformRule = metadata.getNationalPrefixTransformRule();
2426 if (transformRule == null || transformRule.length() == 0 ||
2427 prefixMatcher.group(numOfGroups) == null) {
2428 // If the original number was viable, and the resultant number is not, we return.
2429 if (isViableOriginalNumber &&
2430 !nationalNumberRule.matcher(number.substring(prefixMatcher.end())).matches()) {
2433 if (carrierCode != null && numOfGroups > 0 && prefixMatcher.group(numOfGroups) != null) {
2434 carrierCode.append(prefixMatcher.group(1));
2436 number.delete(0, prefixMatcher.end());
2439 // Check that the resultant number is still viable. If not, return. Check this by copying
2440 // the string buffer and making the transformation on the copy first.
2441 StringBuilder transformedNumber = new StringBuilder(number);
2442 transformedNumber.replace(0, numberLength, prefixMatcher.replaceFirst(transformRule));
2443 if (isViableOriginalNumber &&
2444 !nationalNumberRule.matcher(transformedNumber.toString()).matches()) {
2447 if (carrierCode != null && numOfGroups > 1) {
2448 carrierCode.append(prefixMatcher.group(1));
2450 number.replace(0, number.length(), transformedNumber.toString());
2458 * Strips any extension (as in, the part of the number dialled after the call is connected,
2459 * usually indicated with extn, ext, x or similar) from the end of the number, and returns it.
2461 * @param number the non-normalized telephone number that we wish to strip the extension from
2462 * @return the phone extension
2464 // @VisibleForTesting
2465 String maybeStripExtension(StringBuilder number) {
2466 Matcher m = EXTN_PATTERN.matcher(number);
2467 // If we find a potential extension, and the number preceding this is a viable number, we assume
2468 // it is an extension.
2469 if (m.find() && isViablePhoneNumber(number.substring(0, m.start()))) {
2470 // The numbers are captured into groups in the regular expression.
2471 for (int i = 1, length = m.groupCount(); i <= length; i++) {
2472 if (m.group(i) != null) {
2473 // We go through the capturing groups until we find one that captured some digits. If none
2474 // did, then we will return the empty string.
2475 String extension = m.group(i);
2476 number.delete(m.start(), number.length());
2485 * Checks to see that the region code used is valid, or if it is not valid, that the number to
2486 * parse starts with a + symbol so that we can attempt to infer the region from the number.
2487 * Returns false if it cannot use the region provided and the region cannot be inferred.
2489 private boolean checkRegionForParsing(String numberToParse, String defaultRegion) {
2490 if (!isValidRegionCode(defaultRegion)) {
2491 // If the number is null or empty, we can't infer the region.
2492 if (numberToParse == null || numberToParse.length() == 0 ||
2493 !PLUS_CHARS_PATTERN.matcher(numberToParse).lookingAt()) {
2501 * Parses a string and returns it in proto buffer format. This method will throw a
2502 * {@link com.google.i18n.phonenumbers.NumberParseException} if the number is not considered to be
2503 * a possible number. Note that validation of whether the number is actually a valid number for a
2504 * particular region is not performed. This can be done separately with {@link #isValidNumber}.
2506 * @param numberToParse number that we are attempting to parse. This can contain formatting
2507 * such as +, ( and -, as well as a phone number extension. It can also
2508 * be provided in RFC3966 format.
2509 * @param defaultRegion region that we are expecting the number to be from. This is only used
2510 * if the number being parsed is not written in international format.
2511 * The country_code for the number in this case would be stored as that
2512 * of the default region supplied. If the number is guaranteed to
2513 * start with a '+' followed by the country calling code, then
2514 * "ZZ" or null can be supplied.
2515 * @return a phone number proto buffer filled with the parsed number
2516 * @throws NumberParseException if the string is not considered to be a viable phone number or if
2517 * no default region was supplied and the number is not in
2518 * international format (does not start with +)
2520 public PhoneNumber parse(String numberToParse, String defaultRegion)
2521 throws NumberParseException {
2522 PhoneNumber phoneNumber = new PhoneNumber();
2523 parse(numberToParse, defaultRegion, phoneNumber);
2528 * Same as {@link #parse(String, String)}, but accepts mutable PhoneNumber as a parameter to
2529 * decrease object creation when invoked many times.
2531 public void parse(String numberToParse, String defaultRegion, PhoneNumber phoneNumber)
2532 throws NumberParseException {
2533 parseHelper(numberToParse, defaultRegion, false, true, phoneNumber);
2537 * Parses a string and returns it in proto buffer format. This method differs from {@link #parse}
2538 * in that it always populates the raw_input field of the protocol buffer with numberToParse as
2539 * well as the country_code_source field.
2541 * @param numberToParse number that we are attempting to parse. This can contain formatting
2542 * such as +, ( and -, as well as a phone number extension.
2543 * @param defaultRegion region that we are expecting the number to be from. This is only used
2544 * if the number being parsed is not written in international format.
2545 * The country calling code for the number in this case would be stored
2546 * as that of the default region supplied.
2547 * @return a phone number proto buffer filled with the parsed number
2548 * @throws NumberParseException if the string is not considered to be a viable phone number or if
2549 * no default region was supplied
2551 public PhoneNumber parseAndKeepRawInput(String numberToParse, String defaultRegion)
2552 throws NumberParseException {
2553 PhoneNumber phoneNumber = new PhoneNumber();
2554 parseAndKeepRawInput(numberToParse, defaultRegion, phoneNumber);
2559 * Same as{@link #parseAndKeepRawInput(String, String)}, but accepts a mutable PhoneNumber as
2560 * a parameter to decrease object creation when invoked many times.
2562 public void parseAndKeepRawInput(String numberToParse, String defaultRegion,
2563 PhoneNumber phoneNumber)
2564 throws NumberParseException {
2565 parseHelper(numberToParse, defaultRegion, true, true, phoneNumber);
2569 * Returns an iterable over all {@link PhoneNumberMatch PhoneNumberMatches} in {@code text}. This
2570 * is a shortcut for {@link #findNumbers(CharSequence, String, Leniency, long)
2571 * getMatcher(text, defaultRegion, Leniency.VALID, Long.MAX_VALUE)}.
2573 * @param text the text to search for phone numbers, null for no text
2574 * @param defaultRegion region that we are expecting the number to be from. This is only used
2575 * if the number being parsed is not written in international format. The
2576 * country_code for the number in this case would be stored as that of
2577 * the default region supplied. May be null if only international
2578 * numbers are expected.
2580 public Iterable<PhoneNumberMatch> findNumbers(CharSequence text, String defaultRegion) {
2581 return findNumbers(text, defaultRegion, Leniency.VALID, Long.MAX_VALUE);
2585 * Returns an iterable over all {@link PhoneNumberMatch PhoneNumberMatches} in {@code text}.
2587 * @param text the text to search for phone numbers, null for no text
2588 * @param defaultRegion region that we are expecting the number to be from. This is only used
2589 * if the number being parsed is not written in international format. The
2590 * country_code for the number in this case would be stored as that of
2591 * the default region supplied. May be null if only international
2592 * numbers are expected.
2593 * @param leniency the leniency to use when evaluating candidate phone numbers
2594 * @param maxTries the maximum number of invalid numbers to try before giving up on the
2595 * text. This is to cover degenerate cases where the text has a lot of
2596 * false positives in it. Must be {@code >= 0}.
2598 public Iterable<PhoneNumberMatch> findNumbers(
2599 final CharSequence text, final String defaultRegion, final Leniency leniency,
2600 final long maxTries) {
2602 return new Iterable<PhoneNumberMatch>() {
2603 public Iterator<PhoneNumberMatch> iterator() {
2604 return new PhoneNumberMatcher(
2605 PhoneNumberUtil.this, text, defaultRegion, leniency, maxTries);
2611 * Parses a string and fills up the phoneNumber. This method is the same as the public
2612 * parse() method, with the exception that it allows the default region to be null, for use by
2613 * isNumberMatch(). checkRegion should be set to false if it is permitted for the default region
2614 * to be null or unknown ("ZZ").
2616 private void parseHelper(String numberToParse, String defaultRegion, boolean keepRawInput,
2617 boolean checkRegion, PhoneNumber phoneNumber)
2618 throws NumberParseException {
2619 if (numberToParse == null) {
2620 throw new NumberParseException(NumberParseException.ErrorType.NOT_A_NUMBER,
2621 "The phone number supplied was null.");
2622 } else if (numberToParse.length() > MAX_INPUT_STRING_LENGTH) {
2623 throw new NumberParseException(NumberParseException.ErrorType.TOO_LONG,
2624 "The string supplied was too long to parse.");
2627 StringBuilder nationalNumber = new StringBuilder();
2628 buildNationalNumberForParsing(numberToParse, nationalNumber);
2630 if (!isViablePhoneNumber(nationalNumber.toString())) {
2631 throw new NumberParseException(NumberParseException.ErrorType.NOT_A_NUMBER,
2632 "The string supplied did not seem to be a phone number.");
2635 // Check the region supplied is valid, or that the extracted number starts with some sort of +
2636 // sign so the number's region can be determined.
2637 if (checkRegion && !checkRegionForParsing(nationalNumber.toString(), defaultRegion)) {
2638 throw new NumberParseException(NumberParseException.ErrorType.INVALID_COUNTRY_CODE,
2639 "Missing or invalid default region.");
2643 phoneNumber.setRawInput(numberToParse);
2645 // Attempt to parse extension first, since it doesn't require region-specific data and we want
2646 // to have the non-normalised number here.
2647 String extension = maybeStripExtension(nationalNumber);
2648 if (extension.length() > 0) {
2649 phoneNumber.setExtension(extension);
2652 PhoneMetadata regionMetadata = getMetadataForRegion(defaultRegion);
2653 // Check to see if the number is given in international format so we know whether this number is
2654 // from the default region or not.
2655 StringBuilder normalizedNationalNumber = new StringBuilder();
2656 int countryCode = 0;
2658 // TODO: This method should really just take in the string buffer that has already
2659 // been created, and just remove the prefix, rather than taking in a string and then
2660 // outputting a string buffer.
2661 countryCode = maybeExtractCountryCode(nationalNumber.toString(), regionMetadata,
2662 normalizedNationalNumber, keepRawInput, phoneNumber);
2663 } catch (NumberParseException e) {
2664 Matcher matcher = PLUS_CHARS_PATTERN.matcher(nationalNumber.toString());
2665 if (e.getErrorType() == NumberParseException.ErrorType.INVALID_COUNTRY_CODE &&
2666 matcher.lookingAt()) {
2667 // Strip the plus-char, and try again.
2668 countryCode = maybeExtractCountryCode(nationalNumber.substring(matcher.end()),
2669 regionMetadata, normalizedNationalNumber,
2670 keepRawInput, phoneNumber);
2671 if (countryCode == 0) {
2672 throw new NumberParseException(NumberParseException.ErrorType.INVALID_COUNTRY_CODE,
2673 "Could not interpret numbers after plus-sign.");
2676 throw new NumberParseException(e.getErrorType(), e.getMessage());
2679 if (countryCode != 0) {
2680 String phoneNumberRegion = getRegionCodeForCountryCode(countryCode);
2681 if (!phoneNumberRegion.equals(defaultRegion)) {
2682 regionMetadata = getMetadataForRegionOrCallingCode(countryCode, phoneNumberRegion);
2685 // If no extracted country calling code, use the region supplied instead. The national number
2686 // is just the normalized version of the number we were given to parse.
2687 normalize(nationalNumber);
2688 normalizedNationalNumber.append(nationalNumber);
2689 if (defaultRegion != null) {
2690 countryCode = regionMetadata.getCountryCode();
2691 phoneNumber.setCountryCode(countryCode);
2692 } else if (keepRawInput) {
2693 phoneNumber.clearCountryCodeSource();
2696 if (normalizedNationalNumber.length() < MIN_LENGTH_FOR_NSN) {
2697 throw new NumberParseException(NumberParseException.ErrorType.TOO_SHORT_NSN,
2698 "The string supplied is too short to be a phone number.");
2700 if (regionMetadata != null) {
2701 StringBuilder carrierCode = new StringBuilder();
2702 maybeStripNationalPrefixAndCarrierCode(normalizedNationalNumber, regionMetadata, carrierCode);
2704 phoneNumber.setPreferredDomesticCarrierCode(carrierCode.toString());
2707 int lengthOfNationalNumber = normalizedNationalNumber.length();
2708 if (lengthOfNationalNumber < MIN_LENGTH_FOR_NSN) {
2709 throw new NumberParseException(NumberParseException.ErrorType.TOO_SHORT_NSN,
2710 "The string supplied is too short to be a phone number.");
2712 if (lengthOfNationalNumber > MAX_LENGTH_FOR_NSN) {
2713 throw new NumberParseException(NumberParseException.ErrorType.TOO_LONG,
2714 "The string supplied is too long to be a phone number.");
2716 if (normalizedNationalNumber.charAt(0) == '0') {
2717 phoneNumber.setItalianLeadingZero(true);
2719 phoneNumber.setNationalNumber(Long.parseLong(normalizedNationalNumber.toString()));
2723 * Converts numberToParse to a form that we can parse and write it to nationalNumber if it is
2724 * written in RFC3966; otherwise extract a possible number out of it and write to nationalNumber.
2726 private void buildNationalNumberForParsing(String numberToParse, StringBuilder nationalNumber) {
2727 int indexOfPhoneContext = numberToParse.indexOf(RFC3966_PHONE_CONTEXT);
2728 if (indexOfPhoneContext > 0) {
2729 int phoneContextStart = indexOfPhoneContext + RFC3966_PHONE_CONTEXT.length();
2730 // If the phone context contains a phone number prefix, we need to capture it, whereas domains
2732 if (numberToParse.charAt(phoneContextStart) == PLUS_SIGN) {
2733 // Additional parameters might follow the phone context. If so, we will remove them here
2734 // because the parameters after phone context are not important for parsing the
2736 int phoneContextEnd = numberToParse.indexOf(';', phoneContextStart);
2737 if (phoneContextEnd > 0) {
2738 nationalNumber.append(numberToParse.substring(phoneContextStart, phoneContextEnd));
2740 nationalNumber.append(numberToParse.substring(phoneContextStart));
2744 // Now append everything between the "tel:" prefix and the phone-context. This should include
2745 // the national number, an optional extension or isdn-subaddress component.
2746 nationalNumber.append(numberToParse.substring(
2747 numberToParse.indexOf(RFC3966_PREFIX) + RFC3966_PREFIX.length(), indexOfPhoneContext));
2749 // Extract a possible number from the string passed in (this strips leading characters that
2750 // could not be the start of a phone number.)
2751 nationalNumber.append(extractPossibleNumber(numberToParse));
2754 // Delete the isdn-subaddress and everything after it if it is present. Note extension won't
2755 // appear at the same time with isdn-subaddress according to paragraph 5.3 of the RFC3966 spec,
2756 int indexOfIsdn = nationalNumber.indexOf(RFC3966_ISDN_SUBADDRESS);
2757 if (indexOfIsdn > 0) {
2758 nationalNumber.delete(indexOfIsdn, nationalNumber.length());
2760 // If both phone context and isdn-subaddress are absent but other parameters are present, the
2761 // parameters are left in nationalNumber. This is because we are concerned about deleting
2762 // content from a potential number string when there is no strong evidence that the number is
2763 // actually written in RFC3966.
2767 * Takes two phone numbers and compares them for equality.
2769 * <p>Returns EXACT_MATCH if the country_code, NSN, presence of a leading zero for Italian numbers
2770 * and any extension present are the same.
2771 * Returns NSN_MATCH if either or both has no region specified, and the NSNs and extensions are
2773 * Returns SHORT_NSN_MATCH if either or both has no region specified, or the region specified is
2774 * the same, and one NSN could be a shorter version of the other number. This includes the case
2775 * where one has an extension specified, and the other does not.
2776 * Returns NO_MATCH otherwise.
2777 * For example, the numbers +1 345 657 1234 and 657 1234 are a SHORT_NSN_MATCH.
2778 * The numbers +1 345 657 1234 and 345 657 are a NO_MATCH.
2780 * @param firstNumberIn first number to compare
2781 * @param secondNumberIn second number to compare
2783 * @return NO_MATCH, SHORT_NSN_MATCH, NSN_MATCH or EXACT_MATCH depending on the level of equality
2784 * of the two numbers, described in the method definition.
2786 public MatchType isNumberMatch(PhoneNumber firstNumberIn, PhoneNumber secondNumberIn) {
2787 // Make copies of the phone number so that the numbers passed in are not edited.
2788 PhoneNumber firstNumber = new PhoneNumber();
2789 firstNumber.mergeFrom(firstNumberIn);
2790 PhoneNumber secondNumber = new PhoneNumber();
2791 secondNumber.mergeFrom(secondNumberIn);
2792 // First clear raw_input, country_code_source and preferred_domestic_carrier_code fields and any
2793 // empty-string extensions so that we can use the proto-buffer equality method.
2794 firstNumber.clearRawInput();
2795 firstNumber.clearCountryCodeSource();
2796 firstNumber.clearPreferredDomesticCarrierCode();
2797 secondNumber.clearRawInput();
2798 secondNumber.clearCountryCodeSource();
2799 secondNumber.clearPreferredDomesticCarrierCode();
2800 if (firstNumber.hasExtension() &&
2801 firstNumber.getExtension().length() == 0) {
2802 firstNumber.clearExtension();
2804 if (secondNumber.hasExtension() &&
2805 secondNumber.getExtension().length() == 0) {
2806 secondNumber.clearExtension();
2808 // Early exit if both had extensions and these are different.
2809 if (firstNumber.hasExtension() && secondNumber.hasExtension() &&
2810 !firstNumber.getExtension().equals(secondNumber.getExtension())) {
2811 return MatchType.NO_MATCH;
2813 int firstNumberCountryCode = firstNumber.getCountryCode();
2814 int secondNumberCountryCode = secondNumber.getCountryCode();
2815 // Both had country_code specified.
2816 if (firstNumberCountryCode != 0 && secondNumberCountryCode != 0) {
2817 if (firstNumber.exactlySameAs(secondNumber)) {
2818 return MatchType.EXACT_MATCH;
2819 } else if (firstNumberCountryCode == secondNumberCountryCode &&
2820 isNationalNumberSuffixOfTheOther(firstNumber, secondNumber)) {
2821 // A SHORT_NSN_MATCH occurs if there is a difference because of the presence or absence of
2822 // an 'Italian leading zero', the presence or absence of an extension, or one NSN being a
2823 // shorter variant of the other.
2824 return MatchType.SHORT_NSN_MATCH;
2826 // This is not a match.
2827 return MatchType.NO_MATCH;
2829 // Checks cases where one or both country_code fields were not specified. To make equality
2830 // checks easier, we first set the country_code fields to be equal.
2831 firstNumber.setCountryCode(secondNumberCountryCode);
2832 // If all else was the same, then this is an NSN_MATCH.
2833 if (firstNumber.exactlySameAs(secondNumber)) {
2834 return MatchType.NSN_MATCH;
2836 if (isNationalNumberSuffixOfTheOther(firstNumber, secondNumber)) {
2837 return MatchType.SHORT_NSN_MATCH;
2839 return MatchType.NO_MATCH;
2842 // Returns true when one national number is the suffix of the other or both are the same.
2843 private boolean isNationalNumberSuffixOfTheOther(PhoneNumber firstNumber,
2844 PhoneNumber secondNumber) {
2845 String firstNumberNationalNumber = String.valueOf(firstNumber.getNationalNumber());
2846 String secondNumberNationalNumber = String.valueOf(secondNumber.getNationalNumber());
2847 // Note that endsWith returns true if the numbers are equal.
2848 return firstNumberNationalNumber.endsWith(secondNumberNationalNumber) ||
2849 secondNumberNationalNumber.endsWith(firstNumberNationalNumber);
2853 * Takes two phone numbers as strings and compares them for equality. This is a convenience
2854 * wrapper for {@link #isNumberMatch(PhoneNumber, PhoneNumber)}. No default region is known.
2856 * @param firstNumber first number to compare. Can contain formatting, and can have country
2857 * calling code specified with + at the start.
2858 * @param secondNumber second number to compare. Can contain formatting, and can have country
2859 * calling code specified with + at the start.
2860 * @return NOT_A_NUMBER, NO_MATCH, SHORT_NSN_MATCH, NSN_MATCH, EXACT_MATCH. See
2861 * {@link #isNumberMatch(PhoneNumber, PhoneNumber)} for more details.
2863 public MatchType isNumberMatch(String firstNumber, String secondNumber) {
2865 PhoneNumber firstNumberAsProto = parse(firstNumber, UNKNOWN_REGION);
2866 return isNumberMatch(firstNumberAsProto, secondNumber);
2867 } catch (NumberParseException e) {
2868 if (e.getErrorType() == NumberParseException.ErrorType.INVALID_COUNTRY_CODE) {
2870 PhoneNumber secondNumberAsProto = parse(secondNumber, UNKNOWN_REGION);
2871 return isNumberMatch(secondNumberAsProto, firstNumber);
2872 } catch (NumberParseException e2) {
2873 if (e2.getErrorType() == NumberParseException.ErrorType.INVALID_COUNTRY_CODE) {
2875 PhoneNumber firstNumberProto = new PhoneNumber();
2876 PhoneNumber secondNumberProto = new PhoneNumber();
2877 parseHelper(firstNumber, null, false, false, firstNumberProto);
2878 parseHelper(secondNumber, null, false, false, secondNumberProto);
2879 return isNumberMatch(firstNumberProto, secondNumberProto);
2880 } catch (NumberParseException e3) {
2881 // Fall through and return MatchType.NOT_A_NUMBER.
2887 // One or more of the phone numbers we are trying to match is not a viable phone number.
2888 return MatchType.NOT_A_NUMBER;
2892 * Takes two phone numbers and compares them for equality. This is a convenience wrapper for
2893 * {@link #isNumberMatch(PhoneNumber, PhoneNumber)}. No default region is known.
2895 * @param firstNumber first number to compare in proto buffer format.
2896 * @param secondNumber second number to compare. Can contain formatting, and can have country
2897 * calling code specified with + at the start.
2898 * @return NOT_A_NUMBER, NO_MATCH, SHORT_NSN_MATCH, NSN_MATCH, EXACT_MATCH. See
2899 * {@link #isNumberMatch(PhoneNumber, PhoneNumber)} for more details.
2901 public MatchType isNumberMatch(PhoneNumber firstNumber, String secondNumber) {
2902 // First see if the second number has an implicit country calling code, by attempting to parse
2905 PhoneNumber secondNumberAsProto = parse(secondNumber, UNKNOWN_REGION);
2906 return isNumberMatch(firstNumber, secondNumberAsProto);
2907 } catch (NumberParseException e) {
2908 if (e.getErrorType() == NumberParseException.ErrorType.INVALID_COUNTRY_CODE) {
2909 // The second number has no country calling code. EXACT_MATCH is no longer possible.
2910 // We parse it as if the region was the same as that for the first number, and if
2911 // EXACT_MATCH is returned, we replace this with NSN_MATCH.
2912 String firstNumberRegion = getRegionCodeForCountryCode(firstNumber.getCountryCode());
2914 if (!firstNumberRegion.equals(UNKNOWN_REGION)) {
2915 PhoneNumber secondNumberWithFirstNumberRegion = parse(secondNumber, firstNumberRegion);
2916 MatchType match = isNumberMatch(firstNumber, secondNumberWithFirstNumberRegion);
2917 if (match == MatchType.EXACT_MATCH) {
2918 return MatchType.NSN_MATCH;
2922 // If the first number didn't have a valid country calling code, then we parse the
2923 // second number without one as well.
2924 PhoneNumber secondNumberProto = new PhoneNumber();
2925 parseHelper(secondNumber, null, false, false, secondNumberProto);
2926 return isNumberMatch(firstNumber, secondNumberProto);
2928 } catch (NumberParseException e2) {
2929 // Fall-through to return NOT_A_NUMBER.
2933 // One or more of the phone numbers we are trying to match is not a viable phone number.
2934 return MatchType.NOT_A_NUMBER;
2938 * Returns true if the number can be dialled from outside the region, or unknown. If the number
2939 * can only be dialled from within the region, returns false. Does not check the number is a valid
2941 * TODO: Make this method public when we have enough metadata to make it worthwhile.
2943 * @param number the phone-number for which we want to know whether it is diallable from
2944 * outside the region
2946 // @VisibleForTesting
2947 boolean canBeInternationallyDialled(PhoneNumber number) {
2948 String regionCode = getRegionCodeForNumber(number);
2949 if (!isValidRegionCode(regionCode)) {
2950 // Note numbers belonging to non-geographical entities (e.g. +800 numbers) are always
2951 // internationally diallable, and will be caught here.
2954 PhoneMetadata metadata = getMetadataForRegion(regionCode);
2955 String nationalSignificantNumber = getNationalSignificantNumber(number);
2956 return !isNumberMatchingDesc(nationalSignificantNumber, metadata.getNoInternationalDialling());