/*
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  See the NOTICE file distributed with this work for additional
 *  information regarding copyright ownership.
 */
package org.topbraid.shacl.expr;

public class AppendContext {
	
	private int indentation;

	private StringBuffer sb;
	
	private int varIndex;
	
	
	public AppendContext(StringBuffer sb) {
		this.sb = sb;
	}
	
	
	public void append(String str) {
		sb.append(str);
	}
	
	
	public void decreaseIndent() {
		indentation--;
	}
	
	
	public String getNextVarName() {
		return "" + (char)('a' + varIndex++);
	}
	
	
	public void increaseIndent() {
		indentation++;
	}
	
	
	public void indent() {
		for(int i = 0; i < indentation; i++) {
			sb.append("    ");
		}
	}
}
