Bug 88724 Provide 'since' javadoc in snippets
It would be a useful additional information in some snippets if there were an @since javadoc tag that tells from which version on the snippet will work. For instance, snippet 175 works only from Eclipse 3.1 on, since it uses the GridData.exclude field which was introduced in 3.1
examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet25.java
static String stateMask (int stateMask) {
	String string = "";
	if ((stateMask & SWT.CTRL) != 0) string += " CTRL";
	if ((stateMask & SWT.ALT) != 0) string += " ALT";
	if ((stateMask & SWT.SHIFT) != 0) string += " SHIFT";
	if ((stateMask & SWT.COMMAND) != 0) string += " COMMAND";
	return string;
}
static String character (char character) {
	switch (character) {
		case 0: 		return "'\\0'";
		case SWT.BS:	return "'\\b'";
		case SWT.CR:	return "'\\r'";
		case SWT.DEL:	return "DEL";
		case SWT.ESC:	return "ESC";
		case SWT.LF:	return "'\\n'";
		case SWT.TAB:	return "'\\t'";
	}
	return "'" + character +"'";
}
static String keyCode (int keyCode) {
	switch (keyCode) {
		
		
		case SWT.ALT: 		return "ALT";
		case SWT.SHIFT: 	return "SHIFT";