javafiles.java

java 编译器java复杂编译器,可以编译java文件的类库

    ostr.println("     }");
    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "protected char ReadByte() throws java.io.IOException");
    ostr.println("  {");
    ostr.println("     if (++nextCharInd >= maxNextCharInd)");
    ostr.println("        FillBuff();");
    ostr.println("");
    ostr.println("     return nextCharBuf[nextCharInd];");
    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "public char BeginToken() throws java.io.IOException");
    ostr.println("  {     ");
    ostr.println("     if (inBuf > 0)");
    ostr.println("     {");
    ostr.println("        --inBuf;");
    ostr.println("");
    ostr.println("        if (++bufpos == bufsize)");
    ostr.println("           bufpos = 0;");
    ostr.println("");
    ostr.println("        tokenBegin = bufpos;");
    ostr.println("        return buffer[bufpos];");
    ostr.println("     }");
    ostr.println("");
    ostr.println("     tokenBegin = 0;");
    ostr.println("     bufpos = -1;");
    ostr.println("");
    ostr.println("     return readChar();");
    ostr.println("  }     ");
    ostr.println("");
    ostr.println(prefix + "protected void AdjustBuffSize()");
    ostr.println("  {");
    ostr.println("     if (available == bufsize)");
    ostr.println("     {");
    ostr.println("        if (tokenBegin > 2048)");
    ostr.println("        {");
    ostr.println("           bufpos = 0;");
    ostr.println("           available = tokenBegin;");
    ostr.println("        }");
    //ostr.println("        else if (tokenBegin < 0)");
    //ostr.println("           bufpos = 0;");
    ostr.println("        else");
    ostr.println("           ExpandBuff(false);");
    ostr.println("     }");
    ostr.println("     else if (available > tokenBegin)");
    ostr.println("        available = bufsize;");
    ostr.println("     else if ((tokenBegin - available) < 2048)");
    ostr.println("        ExpandBuff(true);");
    ostr.println("     else");
    ostr.println("        available = tokenBegin;");
    ostr.println("  }");

    if (OtherFilesGen.keepLineCol)
    {
       ostr.println("");
       ostr.println(prefix + "protected void UpdateLineColumn(char c)");
       ostr.println("  {");
       ostr.println("     column++;");
       ostr.println("");
       ostr.println("     if (prevCharIsLF)");
       ostr.println("     {");
       ostr.println("        prevCharIsLF = false;");
       ostr.println("        line += (column = 1);");
       ostr.println("     }");
       ostr.println("     else if (prevCharIsCR)");
       ostr.println("     {");
       ostr.println("        prevCharIsCR = false;");
       ostr.println("        if (c == '\\n')");
       ostr.println("        {");
       ostr.println("           prevCharIsLF = true;");
       ostr.println("        }");
       ostr.println("        else");
       ostr.println("           line += (column = 1);");
       ostr.println("     }");
       ostr.println("");
       ostr.println("     switch (c)");
       ostr.println("     {");
       ostr.println("        case '\\r' :");
       ostr.println("           prevCharIsCR = true;");
       ostr.println("           break;");
       ostr.println("        case '\\n' :");
       ostr.println("           prevCharIsLF = true;");
       ostr.println("           break;");
       ostr.println("        case '\\t' :");
       ostr.println("           column--;");
       ostr.println("           column += (8 - (column & 07));");
       ostr.println("           break;");
       ostr.println("        default :");
       ostr.println("           break;");
       ostr.println("     }");
       ostr.println("");
       ostr.println("     bufline[bufpos] = line;");
       ostr.println("     bufcolumn[bufpos] = column;");
       ostr.println("  }");
    }

    ostr.println("");
    ostr.println(prefix + "public char readChar() throws java.io.IOException");
    ostr.println("  {");
    ostr.println("     if (inBuf > 0)");
    ostr.println("     {");
    ostr.println("        --inBuf;");
    ostr.println("");
    ostr.println("        if (++bufpos == bufsize)");
    ostr.println("           bufpos = 0;");
    ostr.println("");
    ostr.println("        return buffer[bufpos];");
    ostr.println("     }");
    ostr.println("");
    ostr.println("     char c;");
    ostr.println("");
    ostr.println("     if (++bufpos == available)");
    ostr.println("        AdjustBuffSize();");
    ostr.println("");
    ostr.println("     if ((buffer[bufpos] = c = ReadByte()) == '\\\\')");
    ostr.println("     {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("        UpdateLineColumn(c);");
    }

    ostr.println("");
    ostr.println("        int backSlashCnt = 1;");
    ostr.println("");
    ostr.println("        for (;;) // Read all the backslashes");
    ostr.println("        {");
    ostr.println("           if (++bufpos == available)");
    ostr.println("              AdjustBuffSize();");
    ostr.println("");
    ostr.println("           try");
    ostr.println("           {");
    ostr.println("              if ((buffer[bufpos] = c = ReadByte()) != '\\\\')");
    ostr.println("              {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("                 UpdateLineColumn(c);");
    }

    ostr.println("                 // found a non-backslash char.");
    ostr.println("                 if ((c == 'u') && ((backSlashCnt & 1) == 1))");
    ostr.println("                 {");
    ostr.println("                    if (--bufpos < 0)");
    ostr.println("                       bufpos = bufsize - 1;");
    ostr.println("");
    ostr.println("                    break;");
    ostr.println("                 }");
    ostr.println("");
    ostr.println("                 backup(backSlashCnt);");
    ostr.println("                 return '\\\\';");
    ostr.println("              }");
    ostr.println("           }");
    ostr.println("           catch(java.io.IOException e)");
    ostr.println("           {");
    ostr.println("              if (backSlashCnt > 1)");
    ostr.println("                 backup(backSlashCnt);");
    ostr.println("");
    ostr.println("              return '\\\\';");
    ostr.println("           }");
    ostr.println("");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("           UpdateLineColumn(c);");
    }

    ostr.println("           backSlashCnt++;");
    ostr.println("        }");
    ostr.println("");
    ostr.println("        // Here, we have seen an odd number of backslash's followed by a 'u'");
    ostr.println("        try");
    ostr.println("        {");
    ostr.println("           while ((c = ReadByte()) == 'u')");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("              ++column;");
    }
    else
    {
       ostr.println("     ;");
    }

    ostr.println("");
    ostr.println("           buffer[bufpos] = c = (char)(hexval(c) << 12 |");
    ostr.println("                                       hexval(ReadByte()) << 8 |");
    ostr.println("                                       hexval(ReadByte()) << 4 |");
    ostr.println("                                       hexval(ReadByte()));");
    ostr.println("");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("           column += 4;");
    }

    ostr.println("        }");
    ostr.println("        catch(java.io.IOException e)");
    ostr.println("        {");

    if (OtherFilesGen.keepLineCol)
    {
       ostr.println("           throw new Error(\"Invalid escape character at line \" + line +");
       ostr.println("                                         \" column \" + column + \".\");");
    }
    else
    {
       ostr.println("           throw new Error(\"Invalid escape character in input\");");
    }

    ostr.println("        }");
    ostr.println("");
    ostr.println("        if (backSlashCnt == 1)");
    ostr.println("           return c;");
    ostr.println("        else");
    ostr.println("        {");
    ostr.println("           backup(backSlashCnt - 1);");
    ostr.println("           return '\\\\';");
    ostr.println("        }");
    ostr.println("     }");
    ostr.println("     else");
    ostr.println("     {");

    if (OtherFilesGen.keepLineCol)
    {
       ostr.println("        UpdateLineColumn(c);");
    }

    ostr.println("        return (c);");
    ostr.println("     }");
    ostr.println("  }");
    ostr.println("");
    ostr.println("  /**");
    ostr.println("   * @deprecated ");
    ostr.println("   * @see #getEndColumn");
    ostr.println("   */");
    ostr.println("");
    ostr.println(prefix + "public int getColumn() {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("     return bufcolumn[bufpos];");
    }
    else
    {
       ostr.println("     return -1;");
    }

    ostr.println("  }");
    ostr.println("");
    ostr.println("  /**");
    ostr.println("   * @deprecated ");
    ostr.println("   * @see #getEndLine");
    ostr.println("   */");
    ostr.println("");
    ostr.println(prefix + "public int getLine() {");

    if (OtherFilesGen.keepLineCol)
    {
       ostr.println("     return bufline[bufpos];");
    }
    else
    {
       ostr.println("     return -1;");
    }

    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "public int getEndColumn() {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("     return bufcolumn[bufpos];");
    }
    else
    {
       ostr.println("     return -1;");
    }

    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "public int getEndLine() {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("     return bufline[bufpos];");
    }
    else
    {
       ostr.println("     return -1;");
    }

    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "public int getBeginColumn() {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("     return bufcolumn[tokenBegin];");
    }
    else
    {
       ostr.println("     return -1;");
    }

    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "public int getBeginLine() {");

    if (OtherFilesGen.keepLineCol)
    {
    ostr.println("     return bufline[tokenBegin];");
    }
    else
    {
       ostr.println("     return -1;");
    }

    ostr.println("  }");
    ostr.println("");
    ostr.println(prefix + "public void backup(int amount) {");
    ostr.println("");
    ostr.println("    inBuf += amount;");
    ostr.println("    if ((bufpos -= amount) < 0)");
    ostr.println("       bufpos += bufsize;");
    ostr.println("  }");
    ostr.println("");
    ostr.println("  public JavaCharStream(java.io.Reader dstream,");
    ostr.println("                 int startline, int startcolumn, int buffersize)");
    ostr.println("  {");

    if (Options.B("STATIC"))
    {
       ostr.println("    if (inputStream != null)");
       ostr.println("       throw new Error(\"\\n   ERROR: Second call to the constructor of a static JavaCharStream.  You must\\n\" +");
       ostr.println("       \"       either use ReInit() or set the JavaCC option STATIC to false\\n\" +");
       ostr.println("       \"       during the generation of this class.\");");