net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/corext/phpdoc/PHPDocCharArrayCommentReader.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.internal.corext.util.Strings;
  14
  15 /**
  16  * Reads a phpdoc comment from a phpdoc comment. Skips star-character on begin
  17  * of line
  18  */
  19 public class PHPDocCharArrayCommentReader extends SingleCharReader {
  20
  21         private char[] fCharArray;
  22
  23         private int fCurrPos;
  24
  25         private int fStartPos;
  26
  27         private int fEndPos;
  28
  29         private boolean fWasNewLine;
  30
  31         public PHPDocCharArrayCommentReader(char[] buf) {
  32                 this(buf, 0, buf.length);
  33         }
  34
  35         public PHPDocCharArrayCommentReader(char[] buf, int start, int end) {
  36                 fCharArray = buf;
  37                 fStartPos = start + 3;
  38                 fEndPos = end - 2;
  39
  40                 reset();
  41         }
  42
  43         /**
  44          * @see java.io.Reader#read()
  45          */
  46         public int read() {
  47                 if (fCurrPos < fEndPos) {
  48                         char ch;
  49                         if (fWasNewLine) {
  50                                 do {
  51                                         ch = fCharArray[fCurrPos++];
  52                                 } while (fCurrPos < fEndPos && Character.isWhitespace(ch));
  53                                 if (ch == '*') {
  54                                         if (fCurrPos < fEndPos) {
  55                                                 do {
  56                                                         ch = fCharArray[fCurrPos++];
  57                                                 } while (ch == '*');
  58                                         } else {
  59                                                 return -1;
  60                                         }
  61                                 }
  62                         } else {
  63                                 ch = fCharArray[fCurrPos++];
  64                         }
  65                         fWasNewLine = Strings.isLineDelimiterChar(ch);
  66
  67                         return ch;
  68                 }
  69                 return -1;
  70         }
  71
  72         /**
  73          * @see java.io.Reader#close()
  74          */
  75         public void close() {
  76                 fCharArray = null;
  77         }
  78
  79         /**
  80          * @see java.io.Reader#reset()
  81          */
  82         public void reset() {
  83                 fCurrPos = fStartPos;
  84                 fWasNewLine = true;
  85         }
  86
  87 }