Split Pascalcase String

Ankit — Thu, 10 Sep 2009 18:32:12 +0000

Do you ever need to split a camel case or pascal case string to a set of words? This can be achieved simply by regular expressions in Java as well as C#. The following code is for Java:
String camelCase = "StructuralDesignPattern"; StringBuffer label = new StringBuffer(camelCase + 10); java.util.regex.Pattern p = java.util.regex.Pattern.compile("[A-Z][a-z]+"); java.util.regex.Matcher m = p.matcher(camelCase); while ( m.find() ) { label.append( m.group() + " "); } System.out.println(camelCase + " >> " + label.toString());

[ Note: this does not work for all test cases. You may also want to try regexp as "[A-Z][a-z]+”, for matching any continues uppercase letters too (e.g. AnkitJainFROMIndia >> Ankit Jain FROMIndia) ]

Jon Galloway points out a tricky method for C#.

Ankit Jain » regexp

Split Pascalcase String