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

   1 package net.sourceforge.phpdt.internal.corext.phpdoc;
   2
   3 /*
   4  * (c) Copyright IBM Corp. 2000, 2001.
   5  * All Rights Reserved.
   6  */
   7
   8 import java.io.IOException;
   9 import java.io.Reader;
  10
  11 public abstract class SingleCharReader extends Reader {
  12
  13         /**
  14          * @see Reader#read()
  15          */
  16         public abstract int read() throws IOException;
  17
  18         /**
  19          * @see Reader#read(char[],int,int)
  20          */
  21         public int read(char cbuf[], int off, int len) throws IOException {
  22                 int end= off + len;
  23                 for (int i= off; i < end; i++) {
  24                         int ch= read();
  25                         if (ch == -1) {
  26                                 if (i == off) {
  27                                         return -1;
  28                                 } else {
  29                                         return i - off;
  30                                 }
  31                         }
  32                         cbuf[i]= (char)ch;
  33                 }
  34                 return len;
  35         }
  36
  37         /**
  38          * @see Reader#ready()
  39          */
  40     public boolean ready() throws IOException {
  41                 return true;
  42         }
  43
  44         /**
  45          * Gets the content as a String
  46          */
  47         public String getString() throws IOException {
  48                 StringBuffer buf= new StringBuffer();
  49                 int ch;
  50                 while ((ch= read()) != -1) {
  51                         buf.append((char)ch);
  52                 }
  53                 return buf.toString();
  54         }
  55 }