/* Copyright (C) 2004 - 2008  Versant Inc.  http://www.db4o.com

This file is part of the sharpen open source java to c# translator.

sharpen is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

sharpen is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */

/* Copyright (C) 2006 Versant Inc. http://www.db4o.com */

package sharpen.core;

/**
 * @exclude
 */
public class PascalCaseNamingStrategy extends PascalCaseIdentifiersNamingStrategy {
	
	public static final NamingStrategy DEFAULT = new PascalCaseNamingStrategy();
	
	@Override
	public String identifier(String name) {
		if (isAllUpper(name)) {
			return super.identifier(fromJavaConstantName(name));
		}
		return super.identifier(name);
	}

	private boolean isAllUpper(String name) {
		for (int i=0; i<name.length(); ++i) {
			char ch = name.charAt(i);
			if (Character.isLetter(ch) && Character.isLowerCase(ch)) {
				return false;
			}
		}
		return true;
	}

	private String fromJavaConstantName(String name) {
		final String[] parts = name.split("_");
		final StringBuilder buffer = new StringBuilder();
		for (String part : parts) {
			buffer.append(title(part));
		}
		return buffer.toString();
	}

	private String title(String name) {
		return name.length() > 1
			? name.substring(0, 1) + name.substring(1).toLowerCase()
			: name;
	}

	@Override
	protected String namespacePart(String part) {
		return part.length() < 3
			? part.toUpperCase()
			: toPascalCase(part);
	}

}