get Capitalization Type for a string - Android java.lang

Android examples for java.lang:String Case

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Description

get Capitalization Type for a string

Demo Code

/*/*from   w ww. ja  v a  2 s. com*/
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
public class Main {
  public static final int CAPITALIZE_NONE = 0; // No caps, or mixed case
  public static final int CAPITALIZE_FIRST = 1; // First only
  public static final int CAPITALIZE_ALL = 2; // All caps

  public static int getCapitalizationType(final String text) {
    // If the first char is not uppercase, then the word is either all lower case or
    // camel case, and in either case we return CAPITALIZE_NONE.
    final int len = text.length();
    int index = 0;
    for (; index < len; index = text.offsetByCodePoints(index, 1)) {
      if (Character.isLetter(text.codePointAt(index))) {
        break;
      }
    }
    if (index == len)
      return CAPITALIZE_NONE;
    if (!Character.isUpperCase(text.codePointAt(index))) {
      return CAPITALIZE_NONE;
    }
    int capsCount = 1;
    int letterCount = 1;
    for (index = text.offsetByCodePoints(index, 1); index < len; index = text.offsetByCodePoints(index, 1)) {
      if (1 != capsCount && letterCount != capsCount)
        break;
      final int codePoint = text.codePointAt(index);
      if (Character.isUpperCase(codePoint)) {
        ++capsCount;
        ++letterCount;
      } else if (Character.isLetter(codePoint)) {
        // We need to discount non-letters since they may not be upper-case, but may
        // still be part of a word (e.g. single quote or dash, as in "IT'S" or
        // "FULL-TIME")
        ++letterCount;
      }
    }
    // We know the first char is upper case. So we want to test if either every
    // letter other
    // than the first is lower case, or if they are all upper case. If the string is
    // exactly
    // one char long, then we will arrive here with letterCount 1, and this is
    // correct, too.
    if (1 == capsCount)
      return CAPITALIZE_FIRST;
    return (letterCount == capsCount ? CAPITALIZE_ALL : CAPITALIZE_NONE);
  }

}

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