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  1. /* 
  2.  * @author Andrea Ligios
  3.  * */
  4.  
  5. import java.util.ArrayList;
  6. import java.util.Date;
  7. import java.util.List;
  8. import java.util.Locale;
  9.  
  10. class WordsCapitalizer {
  11.  
  12. 	public static String capitalizeEveryWord(String source, List<Delimiter> delimiters, Locale locale) {
  13. 		char[] chars; 
  14.  
  15. 		if (delimiters == null || delimiters.size() == 0)
  16. 			delimiters = getDefaultDelimiters();				
  17.  
  18. 		// If Locale specified, i18n toLowerCase is executed, to handle specific behaviors (eg. Turkish dotted and dotless 'i')
  19. 		if (locale!=null)
  20. 			chars = source.toLowerCase(locale).toCharArray();
  21. 		else 
  22. 			chars = source.toLowerCase().toCharArray();
  23.  
  24. 		// First charachter ALWAYS capitalized, if it is a Letter.
  25. 		if (chars.length>0 && Character.isLetter(chars[0]) && !isSurrogate(chars[0])){
  26. 			chars[0] = Character.toUpperCase(chars[0]);
  27. 		}
  28.  
  29. 		for (int i = 0; i < chars.length; i++) {
  30. 			if (!isSurrogate(chars[i]) && !Character.isLetter(chars[i])) {
  31. 				// Current char is not a Letter; gonna check if it is a delimitrer.
  32. 				for (Delimiter delimiter : delimiters){
  33. 					if (delimiter.getDelimiter()==chars[i]){
  34. 						// Delimiter found, applying rules...						
  35. 						if (delimiter.capitalizeBefore() && i>0 
  36. 							&& Character.isLetter(chars[i-1]) && !isSurrogate(chars[i-1]))
  37. 						{   // previous character is a Letter and I have to capitalize it
  38. 							chars[i-1] = Character.toUpperCase(chars[i-1]);
  39. 						}
  40. 						if (delimiter.capitalizeAfter() && i<chars.length-1 
  41. 							&& Character.isLetter(chars[i+1]) && !isSurrogate(chars[i+1]))
  42. 						{   // next character is a Letter and I have to capitalize it
  43. 							chars[i+1] = Character.toUpperCase(chars[i+1]);
  44. 						}
  45. 						break;
  46. 					}
  47. 				} 
  48. 			}
  49. 		}
  50. 		return String.valueOf(chars);
  51. 	}
  52.  
  53. 	public static String capitalizeEveryWord(String source, Locale locale) {
  54. 		return capitalizeEveryWord(source,null,locale);
  55. 	}
  56.  
  57. 	public static String capitalizeEveryWord(String source) {
  58. 		return capitalizeEveryWord(source,null,null);
  59. 	}
  60.  
  61. 	private static boolean isSurrogate(char chr){
  62. 		// Check if the current character is part of an UTF-16 Surrogate Pair.	
  63. 		// Note: not validating the pair, just used to bypass (any found part of) it.
  64. 		return (Character.isHighSurrogate(chr) || Character.isLowSurrogate(chr));
  65. 	}		
  66.  
  67. 	private static List<Delimiter> getDefaultDelimiters(){
  68. 		// If no delimiter specified, "Capitalize after space" rule is set by default. 
  69. 		List<Delimiter> delimiters = new ArrayList<Delimiter>();
  70. 		delimiters.add(new Delimiter(Behavior.CAPITALIZE_AFTER_MARKER, ' '));
  71. 		return delimiters;
  72. 	} 
  73.  
  74. 	static class Delimiter {
  75. 		private Behavior behavior;
  76. 		private char delimiter;
  77.  
  78. 		private Delimiter(Behavior behavior, char delimiter) {
  79. 			super();
  80. 			this.behavior = behavior;
  81. 			this.delimiter = delimiter;
  82. 		}
  83.  
  84. 		public boolean capitalizeBefore(){
  85. 			return (behavior.equals(Behavior.CAPITALIZE_BEFORE_MARKER)
  86. 					|| behavior.equals(Behavior.CAPITALIZE_BEFORE_AND_AFTER_MARKER));
  87. 		}
  88.  
  89. 		public boolean capitalizeAfter(){
  90. 			return (behavior.equals(Behavior.CAPITALIZE_AFTER_MARKER)
  91. 					|| behavior.equals(Behavior.CAPITALIZE_BEFORE_AND_AFTER_MARKER));
  92. 		}
  93.  
  94. 		public char getDelimiter() {
  95. 			return delimiter;
  96. 		}
  97. 	}
  98.  
  99. 	static enum Behavior {
  100. 		CAPITALIZE_AFTER_MARKER(0),
  101. 		CAPITALIZE_BEFORE_MARKER(1),
  102. 		CAPITALIZE_BEFORE_AND_AFTER_MARKER(2);						
  103.  
  104. 		private int value;			
  105.  
  106. 		private Behavior(int value) {
  107. 			this.value = value;
  108. 		}
  109.  
  110. 		public int getValue() {
  111. 			return value;
  112. 		}			
  113. 	} 
  114.  
  115.  
  116.  
  117.  
  118. 	public static void main(String[] args) throws Exception {			
  119. 		String testString;
  120. 		List <Delimiter> delimiters;
  121.  
  122. 		Long startTime = new Date().getTime();
  123. 		System.out.println("=== WordsCapitalizer Live Demo ===");
  124.  
  125. 		// ==============================================================
  126. 		// SIMPLE USAGE		
  127. 		// ==============================================================
  128.  
  129. 		testString = "cApItAlIzE this string after WHITE SPACES";
  130.  
  131. 		System.out.println("\n====================================\n SIMPLE USAGE\n====================================");
  132. 		System.out.println("Source: " + testString);
  133. 		System.out.println("Output: " + WordsCapitalizer.capitalizeEveryWord(testString));		
  134. 		// ==============================================================
  135.  
  136.  
  137.  
  138. 		// ==============================================================
  139. 		// SINGLE CUSTOM-DELIMITER USAGE :
  140. 		// ==============================================================
  141. 		testString = "capitalize this string ONLY before'and''after'''APEX";		
  142. 		delimiters = new ArrayList<Delimiter>();
  143. 		delimiters.add(new Delimiter(Behavior.CAPITALIZE_BEFORE_AND_AFTER_MARKER, '\''));		
  144.  
  145. 		System.out.println("\n====================================\n SINGLE CUSTOM-DELIMITER USAGE\n====================================");
  146. 		System.out.println("Source: " + testString);
  147. 		System.out.println("Output: " + WordsCapitalizer.capitalizeEveryWord(testString,delimiters,null));
  148. 		// ==============================================================
  149.  
  150.  
  151.  
  152. 		// ==============================================================
  153. 		// MULTIPLE CUSTOM-DELIMITER USAGE :
  154. 		// ==============================================================
  155. 		testString = "capitalize this string AFTER SPACES, BEFORE'APEX, " + 
  156. 		             "and #AFTER AND BEFORE# NUMBER SIGN (#)";
  157. 		delimiters = new ArrayList<Delimiter>();
  158. 		delimiters.add(new Delimiter(Behavior.CAPITALIZE_AFTER_MARKER, ' '));
  159. 		delimiters.add(new Delimiter(Behavior.CAPITALIZE_BEFORE_MARKER, '\''));
  160. 		delimiters.add(new Delimiter(Behavior.CAPITALIZE_BEFORE_AND_AFTER_MARKER, '#'));
  161.  
  162. 		System.out.println("\n====================================\n MULTIPLE CUSTOM-DELIMITER USAGE\n====================================");
  163. 		System.out.println("Source: " + testString);
  164. 		System.out.println("Output: " + WordsCapitalizer.capitalizeEveryWord(testString,delimiters,null));
  165. 		// ==============================================================
  166.  
  167.  
  168. 		// ==============================================================
  169. 		//  SIMPLE USAGE WITH CUSTOM LOCALE :
  170. 		// ==============================================================
  171. 		// Reference for this i18n problem: http://e...content-available-to-author-only...a.org/wiki/Dotted_and_dotless_I		
  172. 		testString = "Uniforming the first and last vowels (different kind of 'i's) of the Turkish word D[\u0130]YARBAK[\u0049]R (D\u0130YARBAK\u0049R) ";
  173.  
  174. 		System.out.println("\n====================================\n SIMPLE USAGE WITH CUSTOM LOCALE\n====================================");
  175. 		System.out.println("Source: " + testString);
  176. 		System.out.println("Output: " + WordsCapitalizer.capitalizeEveryWord(testString,Locale.ENGLISH));
  177.  
  178.  
  179. 		// ==============================================================
  180. 		//  SIMPLE USAGE WITH A SURROGATE PAIR INSIDE THE STRING:
  181. 		// ==============================================================
  182.  
  183. 		byte[] data = 
  184. 		{
  185. 			0, 0x61, // a
  186. 			0, 0x62, // b
  187. 			0, 0x20, // space
  188. 			// Surrogate Pair Begins here
  189. 			(byte) 0xD8, 1, // High surrogate
  190. 			(byte) 0xDC, 2, // Low surrogate
  191. 			// Surrogate Pair Ends here
  192. 			0, 0x63, // c
  193. 			0, 0x20, // space
  194. 			0, 0x64, // d
  195. 			0, 0x65, // e
  196. 			0, 0x20, // space
  197. 			0,(byte) 0xE0, // à
  198. 		};
  199.  
  200. 		testString = new String(data, "UTF-16");
  201. 		System.out.println("\n====================================\n SIMPLE USAGE WITH A SURROGATE PAIR \n====================================");
  202. 		System.out.println("Source: " + testString);
  203. 		System.out.println("Output: " + WordsCapitalizer.capitalizeEveryWord(testString));
  204.  
  205.  
  206.  
  207. 		Long endTime = new Date().getTime();						
  208. 		System.out.println("\nTotal Execution time (in milliseconds): [" + (endTime - startTime)+"]");		
  209.  
  210. 	}
  211.  
  212. }
Success #stdin #stdout 0.03s 245632KB
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=== WordsCapitalizer Live Demo ===

====================================
 SIMPLE USAGE
====================================
Source: cApItAlIzE this string after WHITE SPACES
Output: Capitalize This String After White Spaces

====================================
 SINGLE CUSTOM-DELIMITER USAGE
====================================
Source: capitalize this string ONLY before'and''after'''APEX
Output: Capitalize this string only beforE'AnD''AfteR'''Apex

====================================
 MULTIPLE CUSTOM-DELIMITER USAGE
====================================
Source: capitalize this string AFTER SPACES, BEFORE'APEX, and #AFTER AND BEFORE# NUMBER SIGN (#)
Output: Capitalize This String After Spaces, BeforE'apex, And #After And BeforE# Number Sign (#)

====================================
 SIMPLE USAGE WITH CUSTOM LOCALE
====================================
Source: Uniforming the first and last vowels (different kind of 'i's) of the Turkish word D[İ]YARBAK[I]R (DİYARBAKIR) 
Output: Uniforming The First And Last Vowels (different Kind Of 'i's) Of The Turkish Word D[i]yarbak[i]r (diyarbakir) 

====================================
 SIMPLE USAGE WITH A SURROGATE PAIR 
====================================
Source: ab 𐐂c de à
Output: Ab 𐐪c De À

Total Execution time (in milliseconds): [5]
https://ideone.com/Jdzbaf
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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