/*
* Sone - CssClassNameFilter.java - Copyright © 2010–2019 David Roden
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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, see .
*/
package net.pterodactylus.sone.template;
import java.util.Map;
import net.pterodactylus.util.template.Filter;
import net.pterodactylus.util.template.TemplateContext;
/**
* Converts the {@link String} {@link String#valueOf(Object) representation} of
* an object to a valid CSS class name by converting all characters that are not
* US-ASCII letters or numbers to an underscore.
*/
public class CssClassNameFilter implements Filter {
/**
* {@inheritDoc}
*/
@Override
public Object format(TemplateContext templateContext, Object data, Map parameters) {
return String.valueOf(data).replaceAll("[^a-zA-Z0-9-]", "_");
}
}