net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/corext/phpdoc/PHPDocCommentReader.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.corext.phpdoc;
  12
  13 import net.sourceforge.phpdt.core.IBuffer;
  14 import net.sourceforge.phpdt.internal.corext.util.Strings;
  15
  16
  17 /**
  18  * Reads a java doc comment from a java doc comment. Skips star-character
  19  * on begin of line
  20  */
  21 public class PHPDocCommentReader extends SingleCharReader {
  22
  23         private IBuffer fBuffer;
  24
  25         private int fCurrPos;
  26         private int fStartPos;
  27         private int fEndPos;
  28
  29         private boolean fWasNewLine;
  30
  31         public PHPDocCommentReader(IBuffer buf, int start, int end) {
  32                 fBuffer= buf;
  33                 fStartPos= start + 3;
  34                 fEndPos= end - 2;
  35
  36                 reset();
  37         }
  38
  39         /**
  40          * @see java.io.Reader#read()
  41          */
  42         public int read() {
  43                 if (fCurrPos < fEndPos) {
  44                         char ch;
  45                         if (fWasNewLine) {
  46                                 do {
  47                                         ch= fBuffer.getChar(fCurrPos++);
  48                                 } while (fCurrPos < fEndPos && Character.isWhitespace(ch));
  49                                 if (ch == '*') {
  50                                         if (fCurrPos < fEndPos) {
  51                                                 do {
  52                                                         ch= fBuffer.getChar(fCurrPos++);
  53                                                 } while (ch == '*');
  54                                         } else {
  55                                                 return -1;
  56                                         }
  57                                 }
  58                         } else {
  59                                 ch= fBuffer.getChar(fCurrPos++);
  60                         }
  61                         fWasNewLine= Strings.isLineDelimiterChar(ch);
  62
  63                         return ch;
  64                 }
  65                 return -1;
  66         }
  67
  68         /**
  69          * @see java.io.Reader#close()
  70          */
  71         public void close() {
  72                 fBuffer= null;
  73         }
  74
  75         /**
  76          * @see java.io.Reader#reset()
  77          */
  78         public void reset() {
  79                 fCurrPos= fStartPos;
  80                 fWasNewLine= true;
  81         }
  82
  83
  84 }