Android APIs
public class

Patterns

extends Object
java.lang.Object
   ↳ android.util.Patterns

Class Overview

Commonly used regular expression patterns.

Summary

Constants
String GOOD_IRI_CHAR Good characters for Internationalized Resource Identifiers (IRI).
String TOP_LEVEL_DOMAIN_STR Regular expression to match all IANA top-level domains.
String TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL Regular expression to match all IANA top-level domains for WEB_URL.
Fields
public static final Pattern DOMAIN_NAME
public static final Pattern EMAIL_ADDRESS
public static final Pattern IP_ADDRESS
public static final Pattern PHONE This pattern is intended for searching for things that look like they might be phone numbers in arbitrary text, not for validating whether something is in fact a phone number.
public static final Pattern TOP_LEVEL_DOMAIN Regular expression pattern to match all IANA top-level domains.
public static final Pattern WEB_URL Regular expression pattern to match most part of RFC 3987 Internationalized URLs, aka IRIs.
Public Methods
final static String concatGroups(Matcher matcher)
Convenience method to take all of the non-null matching groups in a regex Matcher and return them as a concatenated string.
final static String digitsAndPlusOnly(Matcher matcher)
Convenience method to return only the digits and plus signs in the matching string.
[Expand]
Inherited Methods
From class java.lang.Object

Constants

public static final String GOOD_IRI_CHAR

Added in API level 8

Good characters for Internationalized Resource Identifiers (IRI). This comprises most common used Unicode characters allowed in IRI as detailed in RFC 3987. Specifically, those two byte Unicode characters are not included.

Constant Value: "a-zA-Z0-9 -퟿豈-﷏ﷰ-￯"

public static final String TOP_LEVEL_DOMAIN_STR

Added in API level 8

Regular expression to match all IANA top-level domains. List accurate as of 2011/07/18. List taken from: http://data.iana.org/TLD/tlds-alpha-by-domain.txt This pattern is auto-generated by frameworks/ex/common/tools/make-iana-tld-pattern.py

Constant Value: "((aero|arpa|asia|a[cdefgilmnoqrstuwxz])|(biz|b[abdefghijmnorstvwyz])|(cat|com|coop|c[acdfghiklmnoruvxyz])|d[ejkmoz]|(edu|e[cegrstu])|f[ijkmor]|(gov|g[abdefghilmnpqrstuwy])|h[kmnrtu]|(info|int|i[delmnoqrst])|(jobs|j[emop])|k[eghimnprwyz]|l[abcikrstuvy]|(mil|mobi|museum|m[acdeghklmnopqrstuvwxyz])|(name|net|n[acefgilopruz])|(org|om)|(pro|p[aefghklmnrstwy])|qa|r[eosuw]|s[abcdeghijklmnortuvyz]|(tel|travel|t[cdfghjklmnoprtvwz])|u[agksyz]|v[aceginu]|w[fs]|(δοκιμή|испытание|рф|срб|טעסט|آزمایشی|إختبار|الاردن|الجزائر|السعودية|المغرب|امارات|بھارت|تونس|سورية|فلسطين|قطر|مصر|परीक्षा|भारत|ভারত|ਭਾਰਤ|ભારત|இந்தியா|இலங்கை|சிங்கப்பூர்|பரிட்சை|భారత్|ලංකා|ไทย|テスト|中国|中國|台湾|台灣|新加坡|测试|測試|香港|테스트|한국|xn\-\-0zwm56d|xn\-\-11b5bs3a9aj6g|xn\-\-3e0b707e|xn\-\-45brj9c|xn\-\-80akhbyknj4f|xn\-\-90a3ac|xn\-\-9t4b11yi5a|xn\-\-clchc0ea0b2g2a9gcd|xn\-\-deba0ad|xn\-\-fiqs8s|xn\-\-fiqz9s|xn\-\-fpcrj9c3d|xn\-\-fzc2c9e2c|xn\-\-g6w251d|xn\-\-gecrj9c|xn\-\-h2brj9c|xn\-\-hgbk6aj7f53bba|xn\-\-hlcj6aya9esc7a|xn\-\-j6w193g|xn\-\-jxalpdlp|xn\-\-kgbechtv|xn\-\-kprw13d|xn\-\-kpry57d|xn\-\-lgbbat1ad8j|xn\-\-mgbaam7a8h|xn\-\-mgbayh7gpa|xn\-\-mgbbh1a71e|xn\-\-mgbc0a9azcg|xn\-\-mgberp4a5d4ar|xn\-\-o3cw4h|xn\-\-ogbpf8fl|xn\-\-p1ai|xn\-\-pgbs0dh|xn\-\-s9brj9c|xn\-\-wgbh1c|xn\-\-wgbl6a|xn\-\-xkc2al3hye2a|xn\-\-xkc2dl3a5ee0h|xn\-\-yfro4i67o|xn\-\-ygbi2ammx|xn\-\-zckzah|xxx)|y[et]|z[amw])"

public static final String TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL

Added in API level 8

Regular expression to match all IANA top-level domains for WEB_URL. List accurate as of 2011/07/18. List taken from: http://data.iana.org/TLD/tlds-alpha-by-domain.txt This pattern is auto-generated by frameworks/ex/common/tools/make-iana-tld-pattern.py

Constant Value: "(?:(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])|(?:biz|b[abdefghijmnorstvwyz])|(?:cat|com|coop|c[acdfghiklmnoruvxyz])|d[ejkmoz]|(?:edu|e[cegrstu])|f[ijkmor]|(?:gov|g[abdefghilmnpqrstuwy])|h[kmnrtu]|(?:info|int|i[delmnoqrst])|(?:jobs|j[emop])|k[eghimnprwyz]|l[abcikrstuvy]|(?:mil|mobi|museum|m[acdeghklmnopqrstuvwxyz])|(?:name|net|n[acefgilopruz])|(?:org|om)|(?:pro|p[aefghklmnrstwy])|qa|r[eosuw]|s[abcdeghijklmnortuvyz]|(?:tel|travel|t[cdfghjklmnoprtvwz])|u[agksyz]|v[aceginu]|w[fs]|(?:δοκιμή|испытание|рф|срб|טעסט|آزمایشی|إختبار|الاردن|الجزائر|السعودية|المغرب|امارات|بھارت|تونس|سورية|فلسطين|قطر|مصر|परीक्षा|भारत|ভারত|ਭਾਰਤ|ભારત|இந்தியா|இலங்கை|சிங்கப்பூர்|பரிட்சை|భారత్|ලංකා|ไทย|テスト|中国|中國|台湾|台灣|新加坡|测试|測試|香港|테스트|한국|xn\-\-0zwm56d|xn\-\-11b5bs3a9aj6g|xn\-\-3e0b707e|xn\-\-45brj9c|xn\-\-80akhbyknj4f|xn\-\-90a3ac|xn\-\-9t4b11yi5a|xn\-\-clchc0ea0b2g2a9gcd|xn\-\-deba0ad|xn\-\-fiqs8s|xn\-\-fiqz9s|xn\-\-fpcrj9c3d|xn\-\-fzc2c9e2c|xn\-\-g6w251d|xn\-\-gecrj9c|xn\-\-h2brj9c|xn\-\-hgbk6aj7f53bba|xn\-\-hlcj6aya9esc7a|xn\-\-j6w193g|xn\-\-jxalpdlp|xn\-\-kgbechtv|xn\-\-kprw13d|xn\-\-kpry57d|xn\-\-lgbbat1ad8j|xn\-\-mgbaam7a8h|xn\-\-mgbayh7gpa|xn\-\-mgbbh1a71e|xn\-\-mgbc0a9azcg|xn\-\-mgberp4a5d4ar|xn\-\-o3cw4h|xn\-\-ogbpf8fl|xn\-\-p1ai|xn\-\-pgbs0dh|xn\-\-s9brj9c|xn\-\-wgbh1c|xn\-\-wgbl6a|xn\-\-xkc2al3hye2a|xn\-\-xkc2dl3a5ee0h|xn\-\-yfro4i67o|xn\-\-ygbi2ammx|xn\-\-zckzah|xxx)|y[et]|z[amw]))"

Fields

public static final Pattern DOMAIN_NAME

Added in API level 8

public static final Pattern EMAIL_ADDRESS

Added in API level 8

public static final Pattern IP_ADDRESS

Added in API level 8

public static final Pattern PHONE

Added in API level 8

This pattern is intended for searching for things that look like they might be phone numbers in arbitrary text, not for validating whether something is in fact a phone number. It will miss many things that are legitimate phone numbers.

The pattern matches the following:

  • Optionally, a + sign followed immediately by one or more digits. Spaces, dots, or dashes may follow.
  • Optionally, sets of digits in parentheses, separated by spaces, dots, or dashes.
  • A string starting and ending with a digit, containing digits, spaces, dots, and/or dashes.

public static final Pattern TOP_LEVEL_DOMAIN

Added in API level 8

Regular expression pattern to match all IANA top-level domains.

public static final Pattern WEB_URL

Added in API level 8

Regular expression pattern to match most part of RFC 3987 Internationalized URLs, aka IRIs. Commonly used Unicode characters are added.

Public Methods

public static final String concatGroups (Matcher matcher)

Added in API level 8

Convenience method to take all of the non-null matching groups in a regex Matcher and return them as a concatenated string.

Parameters
matcher The Matcher object from which grouped text will be extracted
Returns
  • A String comprising all of the non-null matched groups concatenated together

public static final String digitsAndPlusOnly (Matcher matcher)

Added in API level 8

Convenience method to return only the digits and plus signs in the matching string.

Parameters
matcher The Matcher object from which digits and plus will be extracted
Returns
  • A String comprising all of the digits and plus in the match