/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.meta.constraint.impl;
import org.jboss.tools.common.model.plugin.ModelMessages;
public class XAttributeConstraintXMLName extends XAttributeConstraintImpl {
public XAttributeConstraintXMLName() {}
public boolean accepts(String value) {
if(value == null) return false;
if(value.length() == 0) return true;
if(!isXMLStartChar(value.charAt(0))) return false;
for (int i = 1; i < value.length(); i++) {
if(!isXMLPartChar(value.charAt(i))) return false;
}
return true;
}
public String getError(String value) {
return accepts(value) ? null : ModelMessages.CONSTRAINT_XML_NAME;
}
public static final boolean isXMLStartChar(char c) {
return Character.isLetter(c) || (c == '_') || (c == ':');
}
public static final boolean isXMLPartChar(char c) {
return isXMLStartChar(c) || (c == '.') || (c == '-') || Character.isDigit(c);
}
}