avoid NPE

[phpeclipse.git] / net.sourceforge.phpeclipse / src / test / SimpleCharStream.java

diff --git a/net.sourceforge.phpeclipse/src/test/SimpleCharStream.java b/net.sourceforge.phpeclipse/src/test/SimpleCharStream.java
index 1187798..3ccaf79 100644 (file)
--- a/net.sourceforge.phpeclipse/src/test/SimpleCharStream.java
+++ b/net.sourceforge.phpeclipse/src/test/SimpleCharStream.java
@@ -8,31 +8,31 @@ package test;
 
 public class SimpleCharStream
 {
-  public static final boolean staticFlag = true;
-  static int bufsize;
-  static int available;
-  static int tokenBegin;
-  static public int bufpos = -1;
+  public static final boolean staticFlag = false;
+  int bufsize;
+  int available;
+  int tokenBegin;
+  public int bufpos = -1;
 
-  //Added by Matthieu Casanova
-  public static int position = 0;
+  protected int beginOffset, endOffset;
 
-  static protected int bufline[];
-  static protected int bufcolumn[];
+  protected int bufline[];
+  protected int bufcolumn[];
 
-  static protected int column = 0;
-  static protected int line = 1;
+  protected int column = 0;
+  protected int line = 1;
 
-  static protected boolean prevCharIsCR = false;
-  static protected boolean prevCharIsLF = false;
+  protected boolean prevCharIsCR = false;
+  protected boolean prevCharIsLF = false;
 
-  static protected java.io.Reader inputStream;
+  protected java.io.Reader inputStream;
 
-  static protected char[] buffer;
-  static protected int maxNextCharInd = 0;
-  static protected int inBuf = 0;
+  protected char[] buffer;
+  protected int maxNextCharInd = 0;
+  protected int inBuf = 0;
+  protected StringBuffer currentBuffer = new StringBuffer();
 
-  static protected void ExpandBuff(boolean wrapAround)
+  protected void ExpandBuff(boolean wrapAround)
   {
      char[] newbuffer = new char[bufsize + 2048];
      int newbufline[] = new int[bufsize + 2048];
@@ -82,7 +82,7 @@ public class SimpleCharStream
      tokenBegin = 0;
   }
 
-  static protected void FillBuff() throws java.io.IOException
+  protected void FillBuff() throws java.io.IOException
   {
      if (maxNextCharInd == available)
      {
@@ -119,6 +119,7 @@ public class SimpleCharStream
         else {
            maxNextCharInd += i;
         }
+        currentBuffer.append(buffer);
         return;
      }
      catch(java.io.IOException e) {
@@ -130,8 +131,9 @@ public class SimpleCharStream
      }
   }
 
-  static public char BeginToken() throws java.io.IOException
+  public char BeginToken() throws java.io.IOException
   {
+     beginOffset = endOffset;
      tokenBegin = -1;
      char c = readChar();
      tokenBegin = bufpos;
@@ -139,7 +141,7 @@ public class SimpleCharStream
      return c;
   }
 
-  static protected void UpdateLineColumn(char c)
+  protected void UpdateLineColumn(char c)
   {
      column++;
 
@@ -179,8 +181,9 @@ public class SimpleCharStream
      bufcolumn[bufpos] = column;
   }
 
-  static public char readChar() throws java.io.IOException
+  public char readChar() throws java.io.IOException
   {
+    endOffset++;
      if (inBuf > 0)
      {
         --inBuf;
@@ -193,9 +196,8 @@ public class SimpleCharStream
         return buffer[bufpos];
      }
 
-     if (++bufpos >= maxNextCharInd) {
-       FillBuff();
-     }
+     if (++bufpos >= maxNextCharInd)
+        FillBuff();
 
      char c = buffer[bufpos];
 
@@ -208,7 +210,7 @@ public class SimpleCharStream
    * @see #getEndColumn
    */
 
-  static public int getColumn() {
+  public int getColumn() {
      return bufcolumn[bufpos];
   }
 
@@ -217,28 +219,29 @@ public class SimpleCharStream
    * @see #getEndLine
    */
 
-  static public int getLine() {
+  public int getLine() {
      return bufline[bufpos];
   }
 
-  static public int getEndColumn() {
+  public int getEndColumn() {
      return bufcolumn[bufpos];
   }
 
-  static public int getEndLine() {
+  public int getEndLine() {
      return bufline[bufpos];
   }
 
-  static public int getBeginColumn() {
+  public int getBeginColumn() {
      return bufcolumn[tokenBegin];
   }
 
-  static public int getBeginLine() {
+  public int getBeginLine() {
      return bufline[tokenBegin];
   }
 
-  static public void backup(int amount) {
+  public void backup(int amount) {
 
+    endOffset -= amount;
     inBuf += amount;
     if ((bufpos -= amount) < 0)
        bufpos += bufsize;
@@ -247,11 +250,8 @@ public class SimpleCharStream
   public SimpleCharStream(java.io.Reader dstream, int startline,
   int startcolumn, int buffersize)
   {
-    if (inputStream != null)
-       throw new Error("\n   ERROR: Second call to the constructor of a static SimpleCharStream.  You must\n" +
-       "       either use ReInit() or set the JavaCC option STATIC to false\n" +
-       "       during the generation of this class.");
     inputStream = dstream;
+      currentBuffer = new StringBuffer();
     line = startline;
     column = startcolumn - 1;
 
@@ -259,6 +259,8 @@ public class SimpleCharStream
     buffer = new char[buffersize];
     bufline = new int[buffersize];
     bufcolumn = new int[buffersize];
+    beginOffset = 0;
+    endOffset = 0;
   }
 
   public SimpleCharStream(java.io.Reader dstream, int startline,
@@ -275,6 +277,7 @@ public class SimpleCharStream
   int startcolumn, int buffersize)
   {
     inputStream = dstream;
+    currentBuffer = new StringBuffer();
     line = startline;
     column = startcolumn - 1;
 
@@ -289,6 +292,8 @@ public class SimpleCharStream
     tokenBegin = inBuf = maxNextCharInd = 0;
     bufpos = -1;
     position = 0;
+    beginOffset = 0;
+    endOffset = 0;
   }
 
   public void ReInit(java.io.Reader dstream, int startline,
@@ -333,7 +338,7 @@ public class SimpleCharStream
   {
      ReInit(dstream, startline, startcolumn, 4096);
   }
-  static public String GetImage()
+  public String GetImage()
   {
      if (bufpos >= tokenBegin)
         return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
@@ -342,7 +347,7 @@ public class SimpleCharStream
                               new String(buffer, 0, bufpos + 1);
   }
 
-  static public char[] GetSuffix(int len)
+  public char[] GetSuffix(int len)
   {
      char[] ret = new char[len];
 
@@ -358,7 +363,7 @@ public class SimpleCharStream
      return ret;
   }
 
-  static public void Done()
+  public void Done()
   {
      buffer = null;
      bufline = null;
@@ -368,7 +373,7 @@ public class SimpleCharStream
   /**
    * Method to adjust line and column numbers for the start of a token.<BR>
    */
-  static public void adjustBeginLineColumn(int newLine, int newCol)
+  public void adjustBeginLineColumn(int newLine, int newCol)
   {
      int start = tokenBegin;
      int len;
@@ -413,8 +418,25 @@ public class SimpleCharStream
      column = bufcolumn[j];
   }
 
-  //hack
-  public static int getPosition() {
+    public StringBuffer getCurrentBuffer() {
+        return currentBuffer;
+    }
+
+    //Added by Matthieu Casanova
+    public int position = 0;
+  /**
+   * @deprecated
+   * @return
+   */
+  public int getPosition() {
     return position + bufpos;
   }
+
+    public int getBeginOffset() {
+        return beginOffset;
+    }
+
+    public int getEndOffset() {
+        return endOffset;
+    }
 }