101 lines
2.8 KiB
Java
101 lines
2.8 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2011 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*****************************************************************************/
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package com.ibm.wala.cast.js.html;
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import java.io.PrintStream;
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import java.net.URL;
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import com.ibm.wala.cast.tree.CAstSourcePositionMap.Position;
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public class SourceRegion {
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private final StringBuilder source = new StringBuilder();
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private FileMapping fileMapping;
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private int currentLine = 1;
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public SourceRegion() {
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}
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public void print(String text, Position originalPos, URL url){
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int startOffset = source.length();
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source.append(text);
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int endOffset = source.length();
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int numberOfLineDrops = getNumberOfLineDrops(text);
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if (originalPos != null) {
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RangeFileMapping map = new RangeFileMapping(startOffset, endOffset, currentLine, currentLine+numberOfLineDrops, originalPos, url);
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if (fileMapping == null) {
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fileMapping = map;
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} else {
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fileMapping = new CompositeFileMapping(map, fileMapping);
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}
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}
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currentLine += numberOfLineDrops;
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}
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public void println(String text, Position originalPos, URL url){
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print(text + "\n", originalPos, url);
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}
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public void print(String text){
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print(text, null, null);
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}
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public void println(String text){
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print(text + "\n");
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}
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public FileMapping writeToFile(PrintStream ps){
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ps.print(source.toString());
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return fileMapping;
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}
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public void write(SourceRegion otherRegion){
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int rangeStart = source.length();
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String text = otherRegion.source.toString();
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source.append(text);
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int rangeEnd = source.length();
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int numberOfLineDrops = getNumberOfLineDrops(text);
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if (otherRegion.fileMapping != null) {
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FileMapping map = new NestedRangeMapping(rangeStart, rangeEnd, currentLine, currentLine+numberOfLineDrops, otherRegion.fileMapping);
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if (fileMapping == null) {
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fileMapping = map;
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} else {
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fileMapping = new CompositeFileMapping(map, fileMapping);
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}
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}
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currentLine += numberOfLineDrops;
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}
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public void dump(PrintStream ps){
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ps.println(source.toString());
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}
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private static int getNumberOfLineDrops(String text) {
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int ret = 0;
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int i = text.indexOf('\n');
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while (i != -1){
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ret++;
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if (i < text.length()-1){
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i = text.indexOf('\n', i + 1);
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} else {
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break; // CR was the the last character.
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}
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}
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return ret;
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}
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}
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