/*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>Uses two regular expressions to confirm a string has one-or-more characters <i>and</i> zero-or-more spaces. This is an answer to
   <br/>     <code><a href="http://stackoverflow.com/questions/23091427/java-regex-allow-white-spaces-in-the-string">http://stackoverflow.com/questions/23091427/java-regex-allow-white-spaces-in-the-string</a></code></p>

   <p>{@code java com.github.xbn.examples.regexutil.non_xbn.OnePlusLetterDigitZeroPlusSpace}</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 OnePlusLetterDigitZeroPlusSpace  {
   //"": Unused search string, to reuse the matcher object
   private static final Matcher mtchr1PlusLetterDigitSpc = Pattern.compile("^[a-zA-z0-9 ]+$").matcher("");
   private static final Matcher mtchr0PlusSpc = Pattern.compile("^ *$").matcher("");
   public static final void main(String[] ignored)  {
      test("");
      test(" ");
      test("a");
      test("hello ");
      test(" hello ");
      test("hello there");
   }
   private static final void test(String to_search)  {
      System.out.print("\"" + to_search + "\": ");
      if(mtchr1PlusLetterDigitSpc.reset(to_search).matches()  &&  !mtchr0PlusSpc.reset(to_search).matches())  {
         System.out.println("good");
      }  else  {
         System.out.println("BAD");
      }
   }
}