Java tutorial
/* * The MIT License * * Copyright 2014 guy. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package de.neuland.jade4j.compiler; import de.neuland.jade4j.model.JadeModel; import de.neuland.jade4j.parser.node.Node; import de.neuland.jade4j.template.JadeTemplate; import java.io.IOException; import java.io.Writer; import org.apache.commons.lang3.StringUtils; /** * * @author guy */ public abstract class BaseWriter { protected int indent = 0; protected boolean useIndent = false; protected boolean empty = true; protected Writer writer; public BaseWriter() { } public BaseWriter add(String string) { return append(string); } public abstract BaseWriter append(String string); public abstract void visit(Node node, JadeModel model, JadeTemplate template); public void increment() { indent++; } public void decrement() { indent--; } protected void write(String string) { try { writer.write(string); empty = false; } catch (IOException e) { e.printStackTrace(); } } public String toString() { return writer.toString(); } public void newline() { if (useIndent && !empty) { write("\n" + StringUtils.repeat(" ", indent)); } } public void setUseIndent(boolean useIndent) { this.useIndent = useIndent; } }