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/*******************************************************************************
* Copyright (c) 2008 Institute for Software, HSR Hochschule fuer Technik
* Rapperswil, University of applied sciences and others
* All rights reserved. This program and the accompanying materials
* are 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:
* Institute for Software - initial API and implementation
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.rewrite.astwriter;
/**
* This class is responsible for the string concatenation and the management of
* the indentations.
*
* @since 5.0
* @author Emanuel Graf IFS
*/
public class Scribe {
// Indentation is not necessary since the code is going to be formatted anyway.
// Preserved because some tests depend on it.
private static final int INDENTATION_SIZE = 4;
private final String newLine = System.getProperty("line.separator"); //$NON-NLS-1$
private StringBuilder buffer = new StringBuilder();
private int indentationLevel = 0;
private boolean isAtBeginningOfLine = true;
private boolean skipLineBreaks;
private boolean skipSemicolons;
public String getLineSeparator() {
return newLine;
}
public void newLine() {
if (!skipLineBreaks) {
isAtBeginningOfLine = true;
buffer.append(newLine);
}
}
public boolean isAtBeginningOfLine() {
return isAtBeginningOfLine;
}
private void indent() {
printSpaces(indentationLevel * INDENTATION_SIZE);
}
private void indentIfNewLine() {
if (isAtBeginningOfLine) {
isAtBeginningOfLine = false;
indent();
}
}
public void print(String code) {
indentIfNewLine();
buffer.append(code);
}
public void println(String code) {
print(code);
newLine();
}
public void print(String code, String code2) {
print(code);
buffer.append(code2);
}
public void println(String code, String code2) {
print(code, code2);
newLine();
}
public void println(String code, char[] code2) {
print(code);
buffer.append(code2);
newLine();
}
public void printSpaces(int number) {
indentIfNewLine();
for (int i = 0; i < number; ++i) {
printSpace();
}
}
public void noSemicolon() {
skipSemicolons = true;
}
public void printSemicolon() {
if (!skipSemicolons) {
indentIfNewLine();
buffer.append(';');
} else {
skipSemicolons = false;
}
}
@Override
public String toString() {
return buffer.toString();
}
public void print(char code) {
indentIfNewLine();
buffer.append(code);
}
public void print(char[] code) {
indentIfNewLine();
buffer.append(code);
}
public void println(char[] code) {
print(code);
newLine();
}
public void printStringSpace(String code) {
print(code);
printSpace();
}
/**
* Prints a { to the buffer an increases the indentation level.
*/
public void printLBrace() {
print('{');
++indentationLevel;
}
/**
* Prints a } to the buffer an decrease the indentation level.
*/
public void printRBrace() {
--indentationLevel;
print('}');
}
public void incrementIndentationLevel() {
++indentationLevel;
}
public void decrementIndentationLevel() {
if (indentationLevel > 0) {
--indentationLevel;
}
}
protected void noNewLines() {
skipLineBreaks = true;
}
protected void newLines() {
skipLineBreaks = false;
}
public void newLine(int i) {
while (i > 0) {
newLine();
--i;
}
}
public void printSpace() {
buffer.append(' ');
}
public void cleanCache() {
buffer = new StringBuilder();
}
}
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