| /******************************************************************************* |
| * Copyright (c) 2000, 2014 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Martin Oberhuber (Wind River) - [235572] detect existing comments in bat files |
| * Leo Ufimtsev adding fix of : Gunnar Wagenknecht (wagenknecht) - [276253] detect '#!/bin/sh' header. |
| *******************************************************************************/ |
| package org.eclipse.releng.tools; |
| |
| import java.io.IOException; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| |
| |
| public class ShellMakeFile extends SourceFile { |
| |
| public ShellMakeFile(IFile file) { |
| super(file); |
| } |
| |
| //Optional Whitespace, #, optional whitespace, then at least 2 non-word chars repeated till EOL |
| private static Pattern p = Pattern.compile("\\s*#\\s*\\W{2,}\\s*"); //$NON-NLS-1$ |
| |
| @Override |
| public boolean isCommentStart(String aLine) { |
| return p.matcher(aLine).matches(); |
| } |
| |
| @Override |
| public boolean isCommentEnd(String aLine, String commentStartString) { |
| String s = commentStartString.trim(); |
| s = s.substring(s.length()-2); |
| return aLine.trim().endsWith(s); |
| } |
| |
| @Override |
| public String getCommentStart() { |
| return "#*"; //unused, Pattern matcher above will be used instead //$NON-NLS-1$ |
| } |
| |
| @Override |
| public String getCommentEnd() { |
| return "**"; //unused, Pattern matcher above will be used instead //$NON-NLS-1$ |
| } |
| |
| @Override |
| public int getFileType() { |
| return CopyrightComment.SHELL_MAKE_COMMENT; |
| } |
| |
| @Override |
| protected void doInsert(final String comment, IDocument document) throws BadLocationException, IOException { |
| // find insert offset (we must skip instructions) |
| int insertOffset = findInsertOffset(document); |
| |
| // insert comment |
| document.replace(insertOffset, 0, comment); |
| } |
| |
| private int findInsertOffset(IDocument document) throws BadLocationException { |
| boolean inInstruction = false; |
| int insertOffset = 0; |
| |
| for (int offset = 0; offset < document.getLength(); offset++) { |
| char c = document.getChar(offset); |
| |
| // also look at next char |
| char c2 = ((offset + 1) < document.getLength()) ? document.getChar(offset + 1) : 0; |
| |
| // look for line ending |
| if (inInstruction) { |
| if (c == '\n' && c2 == '\r' || c == '\r' && c2 == '\n') { |
| insertOffset = offset + 2; |
| break; // done |
| } else if (c == '\n') { |
| insertOffset = offset + 1; |
| break; // done |
| } else { |
| // continue looking for ending |
| continue; |
| } |
| } |
| |
| // next chars must start an instruction |
| if (c == '#' && c2 == '!') { |
| inInstruction = true; |
| offset++; // don't need to analyse c2 again |
| continue; |
| } else { |
| // if it's something else, we can stop seeking |
| break; |
| } |
| } |
| return insertOffset; |
| } |
| } |