Initial revision

1 files changed, 379 insertions, 0 deletions

diff --git a/C2J/ASCII_CharStream.java b/C2J/ASCII_CharStream.java
new file mode 100644
index 0000000..45d639c
--- /dev/null
+++ b/C2J/ASCII_CharStream.java
@@ -0,0 +1,379 @@
+/* Generated By:JavaCC: Do not edit this line. ASCII_CharStream.java Version 0.7pre6 */
+/**
+ * An implementation of interface CharStream, where the stream is assumed to
+ * contain only ASCII characters (without unicode processing).
+ */
+
+public final class ASCII_CharStream
+{
+  public static final boolean staticFlag = true;
+  static int bufsize;
+  static int available;
+  static int tokenBegin;
+  static public int bufpos = -1;
+  static private int bufline[];
+  static private int bufcolumn[];
+
+  static private int column = 0;
+  static private int line = 1;
+
+  static private boolean prevCharIsCR = false;
+  static private boolean prevCharIsLF = false;
+
+  static private java.io.Reader inputStream;
+
+  static private char[] buffer;
+  static private int maxNextCharInd = 0;
+  static private int inBuf = 0;
+
+  static private final void ExpandBuff(boolean wrapAround)
+  {
+     char[] newbuffer = new char[bufsize + 2048];
+     int newbufline[] = new int[bufsize + 2048];
+     int newbufcolumn[] = new int[bufsize + 2048];
+
+     try
+     {
+        if (wrapAround)
+        {
+           System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+           System.arraycopy(buffer, 0, newbuffer,
+                                             bufsize - tokenBegin, bufpos);
+           buffer = newbuffer;
+
+           System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
+           System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos);
+           bufline = newbufline;
+
+           System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
+           System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos);
+           bufcolumn = newbufcolumn;
+
+           maxNextCharInd = (bufpos += (bufsize - tokenBegin));
+        }
+        else
+        {
+           System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+           buffer = newbuffer;
+
+           System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
+           bufline = newbufline;
+
+           System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
+           bufcolumn = newbufcolumn;
+
+           maxNextCharInd = (bufpos -= tokenBegin);
+        }
+     }
+     catch (Throwable t)
+     {
+        throw new Error(t.getMessage());
+     }
+
+
+     bufsize += 2048;
+     available = bufsize;
+     tokenBegin = 0;
+  }
+
+  static private final void FillBuff() throws java.io.IOException
+  {
+     if (maxNextCharInd == available)
+     {
+        if (available == bufsize)
+        {
+           if (tokenBegin > 2048)
+           {
+              bufpos = maxNextCharInd = 0;
+              available = tokenBegin;
+           }
+           else if (tokenBegin < 0)
+              bufpos = maxNextCharInd = 0;
+           else
+              ExpandBuff(false);
+        }
+        else if (available > tokenBegin)
+           available = bufsize;
+        else if ((tokenBegin - available) < 2048)
+           ExpandBuff(true);
+        else
+           available = tokenBegin;
+     }
+
+     int i;
+     try {
+        if ((i = inputStream.read(buffer, maxNextCharInd,
+                                    available - maxNextCharInd)) == -1)
+        {
+           inputStream.close();
+           throw new java.io.IOException();
+        }
+        else
+           maxNextCharInd += i;
+        return;
+     }
+     catch(java.io.IOException e) {
+        --bufpos;
+        backup(0);
+        if (tokenBegin == -1)
+           tokenBegin = bufpos;
+        throw e;
+     }
+  }
+
+  static public final char BeginToken() throws java.io.IOException
+  {
+     tokenBegin = -1;
+     char c = readChar();
+     tokenBegin = bufpos;
+
+     return c;
+  }
+
+  static private final void UpdateLineColumn(char c)
+  {
+     column++;
+
+     if (prevCharIsLF)
+     {
+        prevCharIsLF = false;
+        line += (column = 1);
+     }
+     else if (prevCharIsCR)
+     {
+        prevCharIsCR = false;
+        if (c == '\n')
+        {
+           prevCharIsLF = true;
+        }
+        else
+           line += (column = 1);
+     }
+
+     switch (c)
+     {
+        case '\r' :
+           prevCharIsCR = true;
+           break;
+        case '\n' :
+           prevCharIsLF = true;
+           break;
+        case '\t' :
+           column--;
+           column += (8 - (column & 07));
+           break;
+        default :
+           break;
+     }
+
+     bufline[bufpos] = line;
+     bufcolumn[bufpos] = column;
+  }
+
+  static public final char readChar() throws java.io.IOException
+  {
+     if (inBuf > 0)
+     {
+        --inBuf;
+        return (char)((char)0xff & buffer[(bufpos == bufsize - 1) ? (bufpos = 0) : ++bufpos]);
+     }
+
+     if (++bufpos >= maxNextCharInd)
+        FillBuff();
+
+     char c = (char)((char)0xff & buffer[bufpos]);
+
+     UpdateLineColumn(c);
+     return (c);
+  }
+
+  /**
+   * @deprecated 
+   * @see #getEndColumn
+   */
+
+  static public final int getColumn() {
+     return bufcolumn[bufpos];
+  }
+
+  /**
+   * @deprecated 
+   * @see #getEndLine
+   */
+
+  static public final int getLine() {
+     return bufline[bufpos];
+  }
+
+  static public final int getEndColumn() {
+     return bufcolumn[bufpos];
+  }
+
+  static public final int getEndLine() {
+     return bufline[bufpos];
+  }
+
+  static public final int getBeginColumn() {
+     return bufcolumn[tokenBegin];
+  }
+
+  static public final int getBeginLine() {
+     return bufline[tokenBegin];
+  }
+
+  static public final void backup(int amount) {
+
+    inBuf += amount;
+    if ((bufpos -= amount) < 0)
+       bufpos += bufsize;
+  }
+
+  public ASCII_CharStream(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 ASCII_CharStream.  You must\n" +
+       "       either use ReInit() or set the JavaCC option STATIC to false\n" +
+       "       during the generation of this class.");
+    inputStream = dstream;
+    line = startline;
+    column = startcolumn - 1;
+
+    available = bufsize = buffersize;
+    buffer = new char[buffersize];
+    bufline = new int[buffersize];
+    bufcolumn = new int[buffersize];
+  }
+
+  public ASCII_CharStream(java.io.Reader dstream, int startline,
+                                                           int startcolumn)
+  {
+     this(dstream, startline, startcolumn, 4096);
+  }
+  static public void ReInit(java.io.Reader dstream, int startline,
+  int startcolumn, int buffersize)
+  {
+    inputStream = dstream;
+    line = startline;
+    column = startcolumn - 1;
+
+    if (buffer == null || buffersize != buffer.length)
+    {
+      available = bufsize = buffersize;
+      buffer = new char[buffersize];
+      bufline = new int[buffersize];
+      bufcolumn = new int[buffersize];
+    }
+    prevCharIsLF = prevCharIsCR = false;
+    tokenBegin = inBuf = maxNextCharInd = 0;
+    bufpos = -1;
+  }
+
+  static public void ReInit(java.io.Reader dstream, int startline,
+                                                           int startcolumn)
+  {
+     ReInit(dstream, startline, startcolumn, 4096);
+  }
+  public ASCII_CharStream(java.io.InputStream dstream, int startline,
+  int startcolumn, int buffersize)
+  {
+     this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
+  }
+
+  public ASCII_CharStream(java.io.InputStream dstream, int startline,
+                                                           int startcolumn)
+  {
+     this(dstream, startline, startcolumn, 4096);
+  }
+
+  static public void ReInit(java.io.InputStream dstream, int startline,
+  int startcolumn, int buffersize)
+  {
+     ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
+  }
+  static public void ReInit(java.io.InputStream dstream, int startline,
+                                                           int startcolumn)
+  {
+     ReInit(dstream, startline, startcolumn, 4096);
+  }
+  static public final String GetImage()
+  {
+     if (bufpos >= tokenBegin)
+        return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
+     else
+        return new String(buffer, tokenBegin, bufsize - tokenBegin) +
+                              new String(buffer, 0, bufpos + 1);
+  }
+
+  static public final char[] GetSuffix(int len)
+  {
+     char[] ret = new char[len];
+
+     if ((bufpos + 1) >= len)
+        System.arraycopy(buffer, bufpos - len + 1, ret, 0, len);
+     else
+     {
+        System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0,
+                                                          len - bufpos - 1);
+        System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1);
+     }
+
+     return ret;
+  }
+
+  static public void Done()
+  {
+     buffer = null;
+     bufline = null;
+     bufcolumn = null;
+  }
+
+  /**
+   * Method to adjust line and column numbers for the start of a token.<BR>
+   */
+  static public void adjustBeginLineColumn(int newLine, int newCol)
+  {
+     int start = tokenBegin;
+     int len;
+
+     if (bufpos >= tokenBegin)
+     {
+        len = bufpos - tokenBegin + inBuf + 1;
+     }
+     else
+     {
+        len = bufsize - tokenBegin + bufpos + 1 + inBuf;
+     }
+
+     int i = 0, j = 0, k = 0;
+     int nextColDiff = 0, columnDiff = 0;
+
+     while (i < len &&
+            bufline[j = start % bufsize] == bufline[k = ++start % bufsize])
+     {
+        bufline[j] = newLine;
+        nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j];
+        bufcolumn[j] = newCol + columnDiff;
+        columnDiff = nextColDiff;
+        i++;
+     } 
+
+     if (i < len)
+     {
+        bufline[j] = newLine++;
+        bufcolumn[j] = newCol + columnDiff;
+
+        while (i++ < len)
+        {
+           if (bufline[j = start % bufsize] != bufline[++start % bufsize])
+              bufline[j] = newLine++;
+           else
+              bufline[j] = newLine;
+        }
+     }
+
+     line = bufline[j];
+     column = bufcolumn[j];
+  }
+
+}