/*license*\ XBN-Java: Copyright (C) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com) This software is dual-licensed under the: - Lesser General Public License (LGPL) version 3.0 or, at your option, any later version; - Apache Software License (ASL) version 2.0. Either license may be applied at your discretion. More information may be found at - http://en.wikipedia.org/wiki/Multi-licensing. The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at: - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt - ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt \*license*/ package com.github.xbn.examples.regexutil.non_xbn; import java.util.regex.Matcher; import java.util.regex.Pattern; /** <p>Validate a phone number, with accomodation for an initial plus-sign.</p> <p>{@code java com.github.xbn.examples.regexutil.non_xbn.ValidatePhoneNumberWithFormat}</p> * @since 0.1.0 * @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a> **/ public class ValidatePhoneNumberWithFormat { public static final void main(String[] ignored) { String sOptionalDashSlash = "(?:[-/])?"; String sOneOrMoreDigitsCAPTURED = "(\\d+)"; String sREPhone = "" + "^(?:[+(])?" + //+ or ( [start of line, then optional] sOneOrMoreDigitsCAPTURED + "(?:\\))?" + //Closing ) [optional] sOptionalDashSlash + sOneOrMoreDigitsCAPTURED + sOptionalDashSlash + sOneOrMoreDigitsCAPTURED + sOptionalDashSlash + "(\\d*)$"; //one-or-more digits [optional, then end of line] //Equivalent to: //String sREPhone = "" + // "^(?:[+(])?" + //+ or ( [start of line, then optional] // "(\\d+)" + //one-or-more digits CAPTURED // "(?:\\))?" + //Closing ) [optional] // "(?:[-/])?" + //- or / [optional] // "(\\d+)" + //one-or-more digits CAPTURED // "(?:[-/])?" + //- or / [optional] // "(\\d+)" + //one-or-more digits CAPTURED // "(?:[-/])?" + //- or / [optional] // "(\\d*)$"; //one-or-more digits CAPTURED [optional, then end of line] //Create matcher with unused string, so it can be reused in test(m,s) Matcher m = Pattern.compile(sREPhone).matcher(""); test(m, "123-431-123/23"); //true test(m, "+312-31-32-53"); //true test(m, "(123)456-7890"); //true test(m, "000-132+23"); //false test(m, "000()312"); //false test(m, "122--231"); //false } private static final void test(Matcher method, String to_test) { method.reset(to_test); System.out.println(to_test + " --> " + method.matches()); } }