Ejemplo n.º 1
0
        /// <summary> This procedure is invoked to process the "open" Tcl command.
        /// See the user documentation for details on what it does.
        ///
        /// </summary>
        /// <param name="interp">the current interpreter.
        /// </param>
        /// <param name="argv">command arguments.
        /// </param>

        public TCL.CompletionCode cmdProc(Interp interp, TclObject[] argv)
        {
            bool pipeline  = false;        /* True if opening pipeline chan */
            int  prot      = 438;          /* Final rdwr permissions of file */
            int  modeFlags = TclIO.RDONLY; /* Rdwr mode for the file.  See the
                                            * TclIO class for more info on the
                                            * valid modes */

            if ((argv.Length < 2) || (argv.Length > 4))
            {
                throw new TclNumArgsException(interp, 1, argv, "fileName ?access? ?permissions?");
            }

            if (argv.Length > 2)
            {
                TclObject mode = argv[2];

                string modeStr = mode.ToString();
                int    len     = modeStr.Length;

                // This "r+1" hack is just to get a test case to pass
                if ((len == 0) || (modeStr.StartsWith("r+") && len >= 3))
                {
                    throw new TclException(interp, "illegal access mode \"" + modeStr + "\"");
                }

                if (len < 3)
                {
                    switch (modeStr[0])
                    {
                    case 'r':  {
                        if (len == 1)
                        {
                            modeFlags = TclIO.RDONLY;
                            break;
                        }
                        else if (modeStr[1] == '+')
                        {
                            modeFlags = TclIO.RDWR;
                            break;
                        }
                    }
                        goto case 'w';

                    case 'w':  {
                        FileInfo f = FileUtil.getNewFileObj(interp, argv[1].ToString());
                        bool     tmpBool;
                        if (File.Exists(f.FullName))
                        {
                            tmpBool = true;
                        }
                        else
                        {
                            tmpBool = Directory.Exists(f.FullName);
                        }
                        if (tmpBool)
                        {
                            bool tmpBool2;
                            try {
                                if (File.Exists(f.FullName))
                                {
                                    File.SetAttributes(f.FullName, FileAttributes.Normal);
                                    File.Delete(f.FullName);
                                    tmpBool2 = true;
                                }
                                else if (Directory.Exists(f.FullName))
                                {
                                    Directory.Delete(f.FullName);
                                    tmpBool2 = true;
                                }
                                else
                                {
                                    tmpBool2 = false;
                                }
                            }
                            // ATK added because .NET do not allow often to delete
                            // files used by another process
                            catch (System.IO.IOException e)
                            {
                                throw new TclException(interp, "cannot open file: " + argv[1].ToString());
                            }
                            bool generatedAux = tmpBool2;
                        }
                        if (len == 1)
                        {
                            modeFlags = (TclIO.WRONLY | TclIO.CREAT);
                            break;
                        }
                        else if (modeStr[1] == '+')
                        {
                            modeFlags = (TclIO.RDWR | TclIO.CREAT);
                            break;
                        }
                    }
                        goto case 'a';

                    case 'a':  {
                        if (len == 1)
                        {
                            modeFlags = (TclIO.WRONLY | TclIO.APPEND);
                            break;
                        }
                        else if (modeStr[1] == '+')
                        {
                            modeFlags = (TclIO.RDWR | TclIO.CREAT | TclIO.APPEND);
                            break;
                        }
                    }
                        goto default;

                    default:  {
                        throw new TclException(interp, "illegal access mode \"" + modeStr + "\"");
                    }
                    }
                }
                else
                {
                    modeFlags = 0;
                    bool gotRorWflag = false;
                    int  mlen        = TclList.getLength(interp, mode);
                    for (int i = 0; i < mlen; i++)
                    {
                        TclObject marg = TclList.index(interp, mode, i);

                        if (marg.ToString().Equals("RDONLY"))
                        {
                            modeFlags  |= TclIO.RDONLY;
                            gotRorWflag = true;
                        }
                        else
                        {
                            if (marg.ToString().Equals("WRONLY"))
                            {
                                modeFlags  |= TclIO.WRONLY;
                                gotRorWflag = true;
                            }
                            else
                            {
                                if (marg.ToString().Equals("RDWR"))
                                {
                                    modeFlags  |= TclIO.RDWR;
                                    gotRorWflag = true;
                                }
                                else
                                {
                                    if (marg.ToString().Equals("APPEND"))
                                    {
                                        modeFlags |= TclIO.APPEND;
                                    }
                                    else
                                    {
                                        if (marg.ToString().Equals("CREAT"))
                                        {
                                            modeFlags |= TclIO.CREAT;
                                        }
                                        else
                                        {
                                            if (marg.ToString().Equals("EXCL"))
                                            {
                                                modeFlags |= TclIO.EXCL;
                                            }
                                            else
                                            {
                                                if (marg.ToString().Equals("TRUNC"))
                                                {
                                                    modeFlags |= TclIO.TRUNC;
                                                }
                                                else
                                                {
                                                    throw new TclException(interp, "invalid access mode \"" + marg.ToString() + "\": must be RDONLY, WRONLY, RDWR, APPEND, " + "CREAT EXCL, NOCTTY, NONBLOCK, or TRUNC");
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                    if (!gotRorWflag)
                    {
                        throw new TclException(interp, "access mode must include either RDONLY, WRONLY, or RDWR");
                    }
                }
            }

            if (argv.Length == 4)
            {
                prot = TclInteger.get(interp, argv[3]);
                throw new TclException(interp, "setting permissions not implemented yet");
            }

            if ((argv[1].ToString().Length > 0) && (argv[1].ToString()[0] == '|'))
            {
                pipeline = true;
                throw new TclException(interp, "pipes not implemented yet");
            }

            /*
             * Open the file or create a process pipeline.
             */

            if (!pipeline)
            {
                try
                {
                    FileChannel file = new FileChannel();

                    file.open(interp, argv[1].ToString(), modeFlags);
                    TclIO.registerChannel(interp, file);
                    interp.setResult(file.ChanName);
                }
                catch (System.IO.IOException e)
                {
                    throw new TclException(interp, "cannot open file: " + argv[1].ToString());
                }
            }
            else
            {
                /*
                 * Pipeline code here...
                 */
            }
            return(TCL.CompletionCode.RETURN);
        }
Ejemplo n.º 2
0
        public TCL.CompletionCode cmdProc(Interp interp, TclObject[] objv)
        {
            if (objv.Length < 2)
            {
                throw new TclNumArgsException(interp, 1, objv, "cmd ?arg ...?");
            }
            int cmd = TclIndex.get(interp, objv[1], options, "option", 0);

            switch (cmd)
            {
            case OPT_ALIAS:
            {
                if (objv.Length >= 4)
                {
                    Interp slaveInterp = getInterp(interp, objv[2]);

                    if (objv.Length == 4)
                    {
                        InterpAliasCmd.describe(interp, slaveInterp, objv[3]);
                        return(TCL.CompletionCode.RETURN);
                    }

                    if ((objv.Length == 5) && ("".Equals(objv[4].ToString())))
                    {
                        InterpAliasCmd.delete(interp, slaveInterp, objv[3]);
                        return(TCL.CompletionCode.RETURN);
                    }
                    if (objv.Length > 5)
                    {
                        Interp masterInterp = getInterp(interp, objv[4]);

                        if ("".Equals(objv[5].ToString()))
                        {
                            if (objv.Length == 6)
                            {
                                InterpAliasCmd.delete(interp, slaveInterp, objv[3]);
                                return(TCL.CompletionCode.RETURN);
                            }
                        }
                        else
                        {
                            InterpAliasCmd.create(interp, slaveInterp, masterInterp, objv[3], objv[5], 6, objv);
                            return(TCL.CompletionCode.RETURN);
                        }
                    }
                }
                throw new TclNumArgsException(interp, 2, objv, "slavePath slaveCmd ?masterPath masterCmd? ?args ..?");
            }

            case OPT_ALIASES:
            {
                Interp slaveInterp = getInterp(interp, objv);
                InterpAliasCmd.list(interp, slaveInterp);
                break;
            }

            case OPT_CREATE:
            {
                // Weird historical rules: "-safe" is accepted at the end, too.

                bool safe = interp.isSafe;

                TclObject slaveNameObj = null;
                bool      last         = false;
                for (int i = 2; i < objv.Length; i++)
                {
                    if ((!last) && (objv[i].ToString()[0] == '-'))
                    {
                        int index = TclIndex.get(interp, objv[i], createOptions, "option", 0);
                        if (index == OPT_CREATE_SAFE)
                        {
                            safe = true;
                            continue;
                        }
                        i++;
                        last = true;
                    }
                    if (slaveNameObj != null)
                    {
                        throw new TclNumArgsException(interp, 2, objv, "?-safe? ?--? ?path?");
                    }
                    slaveNameObj = objv[i];
                }
                if (slaveNameObj == null)
                {
                    // Create an anonymous interpreter -- we choose its name and
                    // the name of the command. We check that the command name
                    // that we use for the interpreter does not collide with an
                    // existing command in the master interpreter.

                    int i = 0;
                    while (interp.getCommand("interp" + i) != null)
                    {
                        i++;
                    }
                    slaveNameObj = TclString.newInstance("interp" + i);
                }
                InterpSlaveCmd.create(interp, slaveNameObj, safe);
                interp.setResult(slaveNameObj);
                break;
            }

            case OPT_DELETE:
            {
                for (int i = 2; i < objv.Length; i++)
                {
                    Interp slaveInterp = getInterp(interp, objv[i]);

                    if (slaveInterp == interp)
                    {
                        throw new TclException(interp, "cannot delete the current interpreter");
                    }
                    InterpSlaveCmd slave = slaveInterp.slave;
                    slave.masterInterp.deleteCommandFromToken(slave.interpCmd);
                }
                break;
            }

            case OPT_EVAL:
            {
                if (objv.Length < 4)
                {
                    throw new TclNumArgsException(interp, 2, objv, "path arg ?arg ...?");
                }
                Interp slaveInterp = getInterp(interp, objv[2]);
                InterpSlaveCmd.eval(interp, slaveInterp, 3, objv);
                break;
            }

            case OPT_EXISTS:
            {
                bool exists = true;

                try
                {
                    getInterp(interp, objv);
                }
                catch (TclException e)
                {
                    if (objv.Length > 3)
                    {
                        throw;
                    }
                    exists = false;
                }
                interp.setResult(exists);
                break;
            }

            case OPT_EXPOSE:
            {
                if (objv.Length < 4 || objv.Length > 5)
                {
                    throw new TclNumArgsException(interp, 2, objv, "path hiddenCmdName ?cmdName?");
                }
                Interp slaveInterp = getInterp(interp, objv[2]);
                InterpSlaveCmd.expose(interp, slaveInterp, 3, objv);
                break;
            }

            case OPT_HIDE:
            {
                if (objv.Length < 4 || objv.Length > 5)
                {
                    throw new TclNumArgsException(interp, 2, objv, "path cmdName ?hiddenCmdName?");
                }
                Interp slaveInterp = getInterp(interp, objv[2]);
                InterpSlaveCmd.hide(interp, slaveInterp, 3, objv);
                break;
            }

            case OPT_HIDDEN:
            {
                Interp slaveInterp = getInterp(interp, objv);
                InterpSlaveCmd.hidden(interp, slaveInterp);
                break;
            }

            case OPT_ISSAFE:
            {
                Interp slaveInterp = getInterp(interp, objv);
                interp.setResult(slaveInterp.isSafe);
                break;
            }

            case OPT_INVOKEHIDDEN:
            {
                bool global = false;
                int  i;
                for (i = 3; i < objv.Length; i++)
                {
                    if (objv[i].ToString()[0] != '-')
                    {
                        break;
                    }
                    int index = TclIndex.get(interp, objv[i], hiddenOptions, "option", 0);
                    if (index == OPT_HIDDEN_GLOBAL)
                    {
                        global = true;
                    }
                    else
                    {
                        i++;
                        break;
                    }
                }
                if (objv.Length - i < 1)
                {
                    throw new TclNumArgsException(interp, 2, objv, "path ?-global? ?--? cmd ?arg ..?");
                }
                Interp slaveInterp = getInterp(interp, objv[2]);
                InterpSlaveCmd.invokeHidden(interp, slaveInterp, global, i, objv);
                break;
            }

            case OPT_MARKTRUSTED:
            {
                if (objv.Length != 3)
                {
                    throw new TclNumArgsException(interp, 2, objv, "path");
                }
                Interp slaveInterp = getInterp(interp, objv[2]);
                InterpSlaveCmd.markTrusted(interp, slaveInterp);
                break;
            }

            case OPT_SLAVES:
            {
                Interp slaveInterp = getInterp(interp, objv);

                TclObject result = TclList.newInstance();
                interp.setResult(result);

                IEnumerator keys = slaveInterp.slaveTable.Keys.GetEnumerator();
                while (keys.MoveNext())
                {
                    string inString = (string)keys.Current;
                    TclList.append(interp, result, TclString.newInstance(inString));
                }

                break;
            }

            case OPT_SHARE:
            {
                if (objv.Length != 5)
                {
                    throw new TclNumArgsException(interp, 2, objv, "srcPath channelId destPath");
                }
                Interp masterInterp = getInterp(interp, objv[2]);


                Channel chan = TclIO.getChannel(masterInterp, objv[3].ToString());
                if (chan == null)
                {
                    throw new TclException(interp, "can not find channel named \"" + objv[3].ToString() + "\"");
                }

                Interp slaveInterp = getInterp(interp, objv[4]);
                TclIO.registerChannel(slaveInterp, chan);
                break;
            }

            case OPT_TARGET:
            {
                if (objv.Length != 4)
                {
                    throw new TclNumArgsException(interp, 2, objv, "path alias");
                }

                Interp slaveInterp = getInterp(interp, objv[2]);

                string aliasName    = objv[3].ToString();
                Interp targetInterp = InterpAliasCmd.getTargetInterp(slaveInterp, aliasName);
                if (targetInterp == null)
                {
                    throw new TclException(interp, "alias \"" + aliasName + "\" in path \"" + objv[2].ToString() + "\" not found");
                }
                if (!getInterpPath(interp, targetInterp))
                {
                    throw new TclException(interp, "target interpreter for alias \"" + aliasName + "\" in path \"" + objv[2].ToString() + "\" is not my descendant");
                }
                break;
            }

            case OPT_TRANSFER:
            {
                if (objv.Length != 5)
                {
                    throw new TclNumArgsException(interp, 2, objv, "srcPath channelId destPath");
                }
                Interp masterInterp = getInterp(interp, objv[2]);


                Channel chan = TclIO.getChannel(masterInterp, objv[3].ToString());
                if (chan == null)
                {
                    throw new TclException(interp, "can not find channel named \"" + objv[3].ToString() + "\"");
                }

                Interp slaveInterp = getInterp(interp, objv[4]);
                TclIO.registerChannel(slaveInterp, chan);
                TclIO.unregisterChannel(masterInterp, chan);
                break;
            }
            }
            return(TCL.CompletionCode.RETURN);
        }