ZeroSpaceCheck.java

public class ZeroSpaceCheck extends AbstractCheck {
	
    @Override
    public int[] getAcceptableTokens() {
        return getRequiredTokens();
    }

    @Override
    public int[] getDefaultTokens() {
        return getRequiredTokens();
    }

    @Override
    public int[] getRequiredTokens() {
        return new int[] { TokenTypes.IDENT };
    }

    @Override
    public void visitToken(DetailAST ast) {
        if (ast.getType() == TokenTypes.IDENT) {
        	String id = ast.getText();
        	int index = id.indexOf("\u200B");
        	if (index >= 0) {
                log(ast, "Zero Space Character found in " + id + " at position " + index);
        	}
        }
    }
}