1 |
dashley |
71 |
/* $Header$ */ |
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/* |
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* tkConsole.c -- |
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* |
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* This file implements a Tcl console for systems that may not |
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* otherwise have access to a console. It uses the Text widget |
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* and provides special access via a console command. |
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* |
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* Copyright (c) 1995-1996 Sun Microsystems, Inc. |
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* |
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* See the file "license.terms" for information on usage and redistribution |
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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* |
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* RCS: @(#) $Id: tkconsole.c,v 1.1.1.1 2001/06/13 04:58:57 dtashley Exp $ |
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*/ |
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#include "tk.h" |
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#include <string.h> |
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#include "tkInt.h" |
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/* |
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* A data structure of the following type holds information for each console |
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* which a handler (i.e. a Tcl command) has been defined for a particular |
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* top-level window. |
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*/ |
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typedef struct ConsoleInfo { |
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Tcl_Interp *consoleInterp; /* Interpreter for the console. */ |
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Tcl_Interp *interp; /* Interpreter to send console commands. */ |
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} ConsoleInfo; |
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typedef struct ThreadSpecificData { |
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Tcl_Interp *gStdoutInterp; |
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} ThreadSpecificData; |
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static Tcl_ThreadDataKey dataKey; |
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static int consoleInitialized = 0; |
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/* |
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* The Mutex below is used to lock access to the consoleIntialized flag |
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*/ |
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TCL_DECLARE_MUTEX(consoleMutex) |
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/* |
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* Forward declarations for procedures defined later in this file: |
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* |
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* The first three will be used in the tk app shells... |
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*/ |
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void TkConsolePrint _ANSI_ARGS_((Tcl_Interp *interp, |
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int devId, char *buffer, long size)); |
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static int ConsoleCmd _ANSI_ARGS_((ClientData clientData, |
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Tcl_Interp *interp, int argc, char **argv)); |
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static void ConsoleDeleteProc _ANSI_ARGS_((ClientData clientData)); |
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static void ConsoleEventProc _ANSI_ARGS_((ClientData clientData, |
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XEvent *eventPtr)); |
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static int InterpreterCmd _ANSI_ARGS_((ClientData clientData, |
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Tcl_Interp *interp, int argc, char **argv)); |
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static int ConsoleInput _ANSI_ARGS_((ClientData instanceData, |
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char *buf, int toRead, int *errorCode)); |
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static int ConsoleOutput _ANSI_ARGS_((ClientData instanceData, |
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char *buf, int toWrite, int *errorCode)); |
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static int ConsoleClose _ANSI_ARGS_((ClientData instanceData, |
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Tcl_Interp *interp)); |
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static void ConsoleWatch _ANSI_ARGS_((ClientData instanceData, |
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int mask)); |
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static int ConsoleHandle _ANSI_ARGS_((ClientData instanceData, |
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int direction, ClientData *handlePtr)); |
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/* |
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* This structure describes the channel type structure for file based IO: |
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*/ |
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static Tcl_ChannelType consoleChannelType = { |
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"console", /* Type name. */ |
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NULL, /* Always non-blocking.*/ |
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ConsoleClose, /* Close proc. */ |
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ConsoleInput, /* Input proc. */ |
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ConsoleOutput, /* Output proc. */ |
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NULL, /* Seek proc. */ |
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NULL, /* Set option proc. */ |
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NULL, /* Get option proc. */ |
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ConsoleWatch, /* Watch for events on console. */ |
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ConsoleHandle, /* Get a handle from the device. */ |
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}; |
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#ifdef __WIN32__ |
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#include <windows.h> |
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/* |
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*---------------------------------------------------------------------- |
98 |
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* |
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* ShouldUseConsoleChannel |
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* |
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* Check to see if console window should be used for a given |
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* standard channel |
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* |
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* Results: |
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* None. |
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* |
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* Side effects: |
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* Creates the console channel and installs it as the standard |
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* channels. |
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* |
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*---------------------------------------------------------------------- |
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*/ |
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static int ShouldUseConsoleChannel(type) |
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int type; |
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{ |
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DWORD handleId; /* Standard handle to retrieve. */ |
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DCB dcb; |
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DWORD consoleParams; |
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DWORD fileType; |
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int mode; |
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char *bufMode; |
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HANDLE handle; |
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124 |
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switch (type) { |
125 |
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case TCL_STDIN: |
126 |
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handleId = STD_INPUT_HANDLE; |
127 |
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mode = TCL_READABLE; |
128 |
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bufMode = "line"; |
129 |
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break; |
130 |
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case TCL_STDOUT: |
131 |
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handleId = STD_OUTPUT_HANDLE; |
132 |
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mode = TCL_WRITABLE; |
133 |
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bufMode = "line"; |
134 |
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break; |
135 |
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case TCL_STDERR: |
136 |
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handleId = STD_ERROR_HANDLE; |
137 |
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mode = TCL_WRITABLE; |
138 |
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bufMode = "none"; |
139 |
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break; |
140 |
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default: |
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return 0; |
142 |
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break; |
143 |
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} |
144 |
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145 |
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handle = GetStdHandle(handleId); |
146 |
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147 |
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/* |
148 |
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* Note that we need to check for 0 because Windows will return 0 if this |
149 |
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* is not a console mode application, even though this is not a valid |
150 |
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* handle. |
151 |
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*/ |
152 |
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153 |
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if ((handle == INVALID_HANDLE_VALUE) || (handle == 0)) { |
154 |
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return 1; |
155 |
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} |
156 |
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fileType = GetFileType(handle); |
157 |
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158 |
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/* |
159 |
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* If the file is a character device, we need to try to figure out |
160 |
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* whether it is a serial port, a console, or something else. We |
161 |
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* test for the console case first because this is more common. |
162 |
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*/ |
163 |
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164 |
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if (fileType == FILE_TYPE_CHAR) { |
165 |
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dcb.DCBlength = sizeof( DCB ) ; |
166 |
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if (!GetConsoleMode(handle, &consoleParams) && |
167 |
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!GetCommState(handle, &dcb)) { |
168 |
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/* |
169 |
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* Don't use a CHAR type channel for stdio, otherwise Tk |
170 |
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* runs into trouble with the MS DevStudio debugger. |
171 |
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*/ |
172 |
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173 |
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return 1; |
174 |
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} |
175 |
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} else if (fileType == FILE_TYPE_UNKNOWN) { |
176 |
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return 1; |
177 |
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} else if (Tcl_GetStdChannel(type) == NULL) { |
178 |
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return 1; |
179 |
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} |
180 |
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181 |
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return 0; |
182 |
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} |
183 |
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#else |
184 |
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/* |
185 |
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* Mac should always use a console channel, Unix should if it's trying to |
186 |
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*/ |
187 |
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188 |
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#define ShouldUseConsoleChannel(chan) (1) |
189 |
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#endif |
190 |
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191 |
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/* |
192 |
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*---------------------------------------------------------------------- |
193 |
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* |
194 |
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* Tk_InitConsoleChannels -- |
195 |
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* |
196 |
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* Create the console channels and install them as the standard |
197 |
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* channels. All I/O will be discarded until TkConsoleInit is |
198 |
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* called to attach the console to a text widget. |
199 |
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* |
200 |
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* Results: |
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* None. |
202 |
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* |
203 |
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* Side effects: |
204 |
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* Creates the console channel and installs it as the standard |
205 |
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* channels. |
206 |
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* |
207 |
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*---------------------------------------------------------------------- |
208 |
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*/ |
209 |
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210 |
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void |
211 |
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Tk_InitConsoleChannels(interp) |
212 |
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Tcl_Interp *interp; |
213 |
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{ |
214 |
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Tcl_Channel consoleChannel; |
215 |
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216 |
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/* |
217 |
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* Ensure that we are getting the matching version of Tcl. This is |
218 |
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* really only an issue when Tk is loaded dynamically. |
219 |
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*/ |
220 |
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221 |
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if (Tcl_InitStubs(interp, TCL_VERSION, 1) == NULL) { |
222 |
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return; |
223 |
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} |
224 |
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225 |
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Tcl_MutexLock(&consoleMutex); |
226 |
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if (!consoleInitialized) { |
227 |
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228 |
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consoleInitialized = 1; |
229 |
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230 |
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/* |
231 |
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* check for STDIN, otherwise create it |
232 |
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* |
233 |
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* Don't do this check on the Mac, because it is hard to prevent |
234 |
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* callbacks from the SIOUX layer from opening stdout & stdin, but |
235 |
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* we don't want to use the SIOUX console. Since the console is not |
236 |
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* actually created till something is written to the channel, it is |
237 |
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* okay to just ignore it here. |
238 |
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* |
239 |
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* This is still a bit of a hack, however, and should be cleaned up |
240 |
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* when we have a better abstraction for the console. |
241 |
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*/ |
242 |
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243 |
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if (ShouldUseConsoleChannel(TCL_STDIN)) { |
244 |
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consoleChannel = Tcl_CreateChannel(&consoleChannelType, "console0", |
245 |
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(ClientData) TCL_STDIN, TCL_READABLE); |
246 |
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if (consoleChannel != NULL) { |
247 |
|
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Tcl_SetChannelOption(NULL, consoleChannel, |
248 |
|
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"-translation", "lf"); |
249 |
|
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Tcl_SetChannelOption(NULL, consoleChannel, |
250 |
|
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"-buffering", "none"); |
251 |
|
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Tcl_SetChannelOption(NULL, consoleChannel, |
252 |
|
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"-encoding", "utf-8"); |
253 |
|
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} |
254 |
|
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Tcl_SetStdChannel(consoleChannel, TCL_STDIN); |
255 |
|
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} |
256 |
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|
257 |
|
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/* |
258 |
|
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* check for STDOUT, otherwise create it |
259 |
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*/ |
260 |
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|
261 |
|
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if (ShouldUseConsoleChannel(TCL_STDOUT)) { |
262 |
|
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consoleChannel = Tcl_CreateChannel(&consoleChannelType, "console1", |
263 |
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(ClientData) TCL_STDOUT, TCL_WRITABLE); |
264 |
|
|
if (consoleChannel != NULL) { |
265 |
|
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Tcl_SetChannelOption(NULL, consoleChannel, |
266 |
|
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"-translation", "lf"); |
267 |
|
|
Tcl_SetChannelOption(NULL, consoleChannel, |
268 |
|
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"-buffering", "none"); |
269 |
|
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Tcl_SetChannelOption(NULL, consoleChannel, |
270 |
|
|
"-encoding", "utf-8"); |
271 |
|
|
} |
272 |
|
|
Tcl_SetStdChannel(consoleChannel, TCL_STDOUT); |
273 |
|
|
} |
274 |
|
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|
275 |
|
|
/* |
276 |
|
|
* check for STDERR, otherwise create it |
277 |
|
|
*/ |
278 |
|
|
|
279 |
|
|
if (ShouldUseConsoleChannel(TCL_STDERR)) { |
280 |
|
|
consoleChannel = Tcl_CreateChannel(&consoleChannelType, "console2", |
281 |
|
|
(ClientData) TCL_STDERR, TCL_WRITABLE); |
282 |
|
|
if (consoleChannel != NULL) { |
283 |
|
|
Tcl_SetChannelOption(NULL, consoleChannel, |
284 |
|
|
"-translation", "lf"); |
285 |
|
|
Tcl_SetChannelOption(NULL, consoleChannel, |
286 |
|
|
"-buffering", "none"); |
287 |
|
|
Tcl_SetChannelOption(NULL, consoleChannel, |
288 |
|
|
"-encoding", "utf-8"); |
289 |
|
|
} |
290 |
|
|
Tcl_SetStdChannel(consoleChannel, TCL_STDERR); |
291 |
|
|
} |
292 |
|
|
} |
293 |
|
|
Tcl_MutexUnlock(&consoleMutex); |
294 |
|
|
} |
295 |
|
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|
296 |
|
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/* |
297 |
|
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*---------------------------------------------------------------------- |
298 |
|
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* |
299 |
|
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* Tk_CreateConsoleWindow -- |
300 |
|
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* |
301 |
|
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* Initialize the console. This code actually creates a new |
302 |
|
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* application and associated interpreter. This effectivly hides |
303 |
|
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* the implementation from the main application. |
304 |
|
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* |
305 |
|
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* Results: |
306 |
|
|
* None. |
307 |
|
|
* |
308 |
|
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* Side effects: |
309 |
|
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* A new console it created. |
310 |
|
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* |
311 |
|
|
*---------------------------------------------------------------------- |
312 |
|
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*/ |
313 |
|
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|
314 |
|
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int |
315 |
|
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Tk_CreateConsoleWindow(interp) |
316 |
|
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Tcl_Interp *interp; /* Interpreter to use for prompting. */ |
317 |
|
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{ |
318 |
|
|
Tcl_Interp *consoleInterp; |
319 |
|
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ConsoleInfo *info; |
320 |
|
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Tk_Window mainWindow = Tk_MainWindow(interp); |
321 |
|
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *) |
322 |
|
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); |
323 |
|
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#ifdef MAC_TCL |
324 |
|
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static char initCmd[] = "source -rsrc {Console}"; |
325 |
|
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#else |
326 |
|
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static char initCmd[] = "source $tk_library/console.tcl"; |
327 |
|
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#endif |
328 |
|
|
|
329 |
|
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consoleInterp = Tcl_CreateInterp(); |
330 |
|
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if (consoleInterp == NULL) { |
331 |
|
|
goto error; |
332 |
|
|
} |
333 |
|
|
|
334 |
|
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/* |
335 |
|
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* Initialized Tcl and Tk. |
336 |
|
|
*/ |
337 |
|
|
|
338 |
|
|
if (Tcl_Init(consoleInterp) != TCL_OK) { |
339 |
|
|
goto error; |
340 |
|
|
} |
341 |
|
|
if (Tk_Init(consoleInterp) != TCL_OK) { |
342 |
|
|
goto error; |
343 |
|
|
} |
344 |
|
|
tsdPtr->gStdoutInterp = interp; |
345 |
|
|
|
346 |
|
|
/* |
347 |
|
|
* Add console commands to the interp |
348 |
|
|
*/ |
349 |
|
|
info = (ConsoleInfo *) ckalloc(sizeof(ConsoleInfo)); |
350 |
|
|
info->interp = interp; |
351 |
|
|
info->consoleInterp = consoleInterp; |
352 |
|
|
Tcl_CreateCommand(interp, "console", ConsoleCmd, (ClientData) info, |
353 |
|
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(Tcl_CmdDeleteProc *) ConsoleDeleteProc); |
354 |
|
|
Tcl_CreateCommand(consoleInterp, "consoleinterp", InterpreterCmd, |
355 |
|
|
(ClientData) info, (Tcl_CmdDeleteProc *) NULL); |
356 |
|
|
|
357 |
|
|
Tk_CreateEventHandler(mainWindow, StructureNotifyMask, ConsoleEventProc, |
358 |
|
|
(ClientData) info); |
359 |
|
|
|
360 |
|
|
Tcl_Preserve((ClientData) consoleInterp); |
361 |
|
|
if (Tcl_Eval(consoleInterp, initCmd) == TCL_ERROR) { |
362 |
|
|
/* goto error; -- no problem for now... */ |
363 |
|
|
printf("Eval error: %s", consoleInterp->result); |
364 |
|
|
} |
365 |
|
|
Tcl_Release((ClientData) consoleInterp); |
366 |
|
|
return TCL_OK; |
367 |
|
|
|
368 |
|
|
error: |
369 |
|
|
if (consoleInterp != NULL) { |
370 |
|
|
Tcl_DeleteInterp(consoleInterp); |
371 |
|
|
} |
372 |
|
|
return TCL_ERROR; |
373 |
|
|
} |
374 |
|
|
|
375 |
|
|
/* |
376 |
|
|
*---------------------------------------------------------------------- |
377 |
|
|
* |
378 |
|
|
* ConsoleOutput-- |
379 |
|
|
* |
380 |
|
|
* Writes the given output on the IO channel. Returns count of how |
381 |
|
|
* many characters were actually written, and an error indication. |
382 |
|
|
* |
383 |
|
|
* Results: |
384 |
|
|
* A count of how many characters were written is returned and an |
385 |
|
|
* error indication is returned in an output argument. |
386 |
|
|
* |
387 |
|
|
* Side effects: |
388 |
|
|
* Writes output on the actual channel. |
389 |
|
|
* |
390 |
|
|
*---------------------------------------------------------------------- |
391 |
|
|
*/ |
392 |
|
|
|
393 |
|
|
static int |
394 |
|
|
ConsoleOutput(instanceData, buf, toWrite, errorCode) |
395 |
|
|
ClientData instanceData; /* Indicates which device to use. */ |
396 |
|
|
char *buf; /* The data buffer. */ |
397 |
|
|
int toWrite; /* How many bytes to write? */ |
398 |
|
|
int *errorCode; /* Where to store error code. */ |
399 |
|
|
{ |
400 |
|
|
ThreadSpecificData *tsdPtr = (ThreadSpecificData *) |
401 |
|
|
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); |
402 |
|
|
|
403 |
|
|
*errorCode = 0; |
404 |
|
|
Tcl_SetErrno(0); |
405 |
|
|
|
406 |
|
|
if (tsdPtr->gStdoutInterp != NULL) { |
407 |
|
|
TkConsolePrint(tsdPtr->gStdoutInterp, (int) instanceData, buf, |
408 |
|
|
toWrite); |
409 |
|
|
} |
410 |
|
|
|
411 |
|
|
return toWrite; |
412 |
|
|
} |
413 |
|
|
|
414 |
|
|
/* |
415 |
|
|
*---------------------------------------------------------------------- |
416 |
|
|
* |
417 |
|
|
* ConsoleInput -- |
418 |
|
|
* |
419 |
|
|
* Read input from the console. Not currently implemented. |
420 |
|
|
* |
421 |
|
|
* Results: |
422 |
|
|
* Always returns EOF. |
423 |
|
|
* |
424 |
|
|
* Side effects: |
425 |
|
|
* None. |
426 |
|
|
* |
427 |
|
|
*---------------------------------------------------------------------- |
428 |
|
|
*/ |
429 |
|
|
|
430 |
|
|
/* ARGSUSED */ |
431 |
|
|
static int |
432 |
|
|
ConsoleInput(instanceData, buf, bufSize, errorCode) |
433 |
|
|
ClientData instanceData; /* Unused. */ |
434 |
|
|
char *buf; /* Where to store data read. */ |
435 |
|
|
int bufSize; /* How much space is available |
436 |
|
|
* in the buffer? */ |
437 |
|
|
int *errorCode; /* Where to store error code. */ |
438 |
|
|
{ |
439 |
|
|
return 0; /* Always return EOF. */ |
440 |
|
|
} |
441 |
|
|
|
442 |
|
|
/* |
443 |
|
|
*---------------------------------------------------------------------- |
444 |
|
|
* |
445 |
|
|
* ConsoleClose -- |
446 |
|
|
* |
447 |
|
|
* Closes the IO channel. |
448 |
|
|
* |
449 |
|
|
* Results: |
450 |
|
|
* Always returns 0 (success). |
451 |
|
|
* |
452 |
|
|
* Side effects: |
453 |
|
|
* Frees the dummy file associated with the channel. |
454 |
|
|
* |
455 |
|
|
*---------------------------------------------------------------------- |
456 |
|
|
*/ |
457 |
|
|
|
458 |
|
|
/* ARGSUSED */ |
459 |
|
|
static int |
460 |
|
|
ConsoleClose(instanceData, interp) |
461 |
|
|
ClientData instanceData; /* Unused. */ |
462 |
|
|
Tcl_Interp *interp; /* Unused. */ |
463 |
|
|
{ |
464 |
|
|
return 0; |
465 |
|
|
} |
466 |
|
|
|
467 |
|
|
/* |
468 |
|
|
*---------------------------------------------------------------------- |
469 |
|
|
* |
470 |
|
|
* ConsoleWatch -- |
471 |
|
|
* |
472 |
|
|
* Called by the notifier to set up the console device so that |
473 |
|
|
* events will be noticed. Since there are no events on the |
474 |
|
|
* console, this routine just returns without doing anything. |
475 |
|
|
* |
476 |
|
|
* Results: |
477 |
|
|
* None. |
478 |
|
|
* |
479 |
|
|
* Side effects: |
480 |
|
|
* None. |
481 |
|
|
* |
482 |
|
|
*---------------------------------------------------------------------- |
483 |
|
|
*/ |
484 |
|
|
|
485 |
|
|
/* ARGSUSED */ |
486 |
|
|
static void |
487 |
|
|
ConsoleWatch(instanceData, mask) |
488 |
|
|
ClientData instanceData; /* Device ID for the channel. */ |
489 |
|
|
int mask; /* OR-ed combination of |
490 |
|
|
* TCL_READABLE, TCL_WRITABLE and |
491 |
|
|
* TCL_EXCEPTION, for the events |
492 |
|
|
* we are interested in. */ |
493 |
|
|
{ |
494 |
|
|
} |
495 |
|
|
|
496 |
|
|
/* |
497 |
|
|
*---------------------------------------------------------------------- |
498 |
|
|
* |
499 |
|
|
* ConsoleHandle -- |
500 |
|
|
* |
501 |
|
|
* Invoked by the generic IO layer to get a handle from a channel. |
502 |
|
|
* Because console channels are not devices, this function always |
503 |
|
|
* fails. |
504 |
|
|
* |
505 |
|
|
* Results: |
506 |
|
|
* Always returns TCL_ERROR. |
507 |
|
|
* |
508 |
|
|
* Side effects: |
509 |
|
|
* None. |
510 |
|
|
* |
511 |
|
|
*---------------------------------------------------------------------- |
512 |
|
|
*/ |
513 |
|
|
|
514 |
|
|
/* ARGSUSED */ |
515 |
|
|
static int |
516 |
|
|
ConsoleHandle(instanceData, direction, handlePtr) |
517 |
|
|
ClientData instanceData; /* Device ID for the channel. */ |
518 |
|
|
int direction; /* TCL_READABLE or TCL_WRITABLE to indicate |
519 |
|
|
* which direction of the channel is being |
520 |
|
|
* requested. */ |
521 |
|
|
ClientData *handlePtr; /* Where to store handle */ |
522 |
|
|
{ |
523 |
|
|
return TCL_ERROR; |
524 |
|
|
} |
525 |
|
|
|
526 |
|
|
/* |
527 |
|
|
*---------------------------------------------------------------------- |
528 |
|
|
* |
529 |
|
|
* ConsoleCmd -- |
530 |
|
|
* |
531 |
|
|
* The console command implements a Tcl interface to the various console |
532 |
|
|
* options. |
533 |
|
|
* |
534 |
|
|
* Results: |
535 |
|
|
* None. |
536 |
|
|
* |
537 |
|
|
* Side effects: |
538 |
|
|
* None. |
539 |
|
|
* |
540 |
|
|
*---------------------------------------------------------------------- |
541 |
|
|
*/ |
542 |
|
|
|
543 |
|
|
static int |
544 |
|
|
ConsoleCmd(clientData, interp, argc, argv) |
545 |
|
|
ClientData clientData; /* Not used. */ |
546 |
|
|
Tcl_Interp *interp; /* Current interpreter. */ |
547 |
|
|
int argc; /* Number of arguments. */ |
548 |
|
|
char **argv; /* Argument strings. */ |
549 |
|
|
{ |
550 |
|
|
ConsoleInfo *info = (ConsoleInfo *) clientData; |
551 |
|
|
char c; |
552 |
|
|
size_t length; |
553 |
|
|
int result; |
554 |
|
|
Tcl_Interp *consoleInterp; |
555 |
|
|
Tcl_DString dString; |
556 |
|
|
|
557 |
|
|
if (argc < 2) { |
558 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], |
559 |
|
|
" option ?arg arg ...?\"", (char *) NULL); |
560 |
|
|
return TCL_ERROR; |
561 |
|
|
} |
562 |
|
|
|
563 |
|
|
c = argv[1][0]; |
564 |
|
|
length = strlen(argv[1]); |
565 |
|
|
result = TCL_OK; |
566 |
|
|
consoleInterp = info->consoleInterp; |
567 |
|
|
Tcl_Preserve((ClientData) consoleInterp); |
568 |
|
|
Tcl_DStringInit(&dString); |
569 |
|
|
|
570 |
|
|
if ((c == 't') && (strncmp(argv[1], "title", length)) == 0) { |
571 |
|
|
Tcl_DStringAppend(&dString, "wm title . ", -1); |
572 |
|
|
if (argc == 3) { |
573 |
|
|
Tcl_DStringAppendElement(&dString, argv[2]); |
574 |
|
|
} |
575 |
|
|
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString)); |
576 |
|
|
} else if ((c == 'h') && (strncmp(argv[1], "hide", length)) == 0) { |
577 |
|
|
Tcl_DStringAppend(&dString, "wm withdraw . ", -1); |
578 |
|
|
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString)); |
579 |
|
|
} else if ((c == 's') && (strncmp(argv[1], "show", length)) == 0) { |
580 |
|
|
Tcl_DStringAppend(&dString, "wm deiconify . ", -1); |
581 |
|
|
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString)); |
582 |
|
|
} else if ((c == 'e') && (strncmp(argv[1], "eval", length)) == 0) { |
583 |
|
|
if (argc == 3) { |
584 |
|
|
result = Tcl_Eval(consoleInterp, argv[2]); |
585 |
|
|
Tcl_AppendResult(interp, Tcl_GetStringResult(consoleInterp), |
586 |
|
|
(char *) NULL); |
587 |
|
|
} else { |
588 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], |
589 |
|
|
" eval command\"", (char *) NULL); |
590 |
|
|
return TCL_ERROR; |
591 |
|
|
} |
592 |
|
|
} else { |
593 |
|
|
Tcl_AppendResult(interp, "bad option \"", argv[1], |
594 |
|
|
"\": should be hide, show, or title", |
595 |
|
|
(char *) NULL); |
596 |
|
|
result = TCL_ERROR; |
597 |
|
|
} |
598 |
|
|
Tcl_DStringFree(&dString); |
599 |
|
|
Tcl_Release((ClientData) consoleInterp); |
600 |
|
|
return result; |
601 |
|
|
} |
602 |
|
|
|
603 |
|
|
/* |
604 |
|
|
*---------------------------------------------------------------------- |
605 |
|
|
* |
606 |
|
|
* InterpreterCmd -- |
607 |
|
|
* |
608 |
|
|
* This command allows the console interp to communicate with the |
609 |
|
|
* main interpreter. |
610 |
|
|
* |
611 |
|
|
* Results: |
612 |
|
|
* None. |
613 |
|
|
* |
614 |
|
|
* Side effects: |
615 |
|
|
* None. |
616 |
|
|
* |
617 |
|
|
*---------------------------------------------------------------------- |
618 |
|
|
*/ |
619 |
|
|
|
620 |
|
|
static int |
621 |
|
|
InterpreterCmd(clientData, interp, argc, argv) |
622 |
|
|
ClientData clientData; /* Not used. */ |
623 |
|
|
Tcl_Interp *interp; /* Current interpreter. */ |
624 |
|
|
int argc; /* Number of arguments. */ |
625 |
|
|
char **argv; /* Argument strings. */ |
626 |
|
|
{ |
627 |
|
|
ConsoleInfo *info = (ConsoleInfo *) clientData; |
628 |
|
|
char c; |
629 |
|
|
size_t length; |
630 |
|
|
int result; |
631 |
|
|
Tcl_Interp *otherInterp; |
632 |
|
|
|
633 |
|
|
if (argc < 2) { |
634 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], |
635 |
|
|
" option ?arg arg ...?\"", (char *) NULL); |
636 |
|
|
return TCL_ERROR; |
637 |
|
|
} |
638 |
|
|
|
639 |
|
|
c = argv[1][0]; |
640 |
|
|
length = strlen(argv[1]); |
641 |
|
|
otherInterp = info->interp; |
642 |
|
|
Tcl_Preserve((ClientData) otherInterp); |
643 |
|
|
if ((c == 'e') && (strncmp(argv[1], "eval", length)) == 0) { |
644 |
|
|
result = Tcl_GlobalEval(otherInterp, argv[2]); |
645 |
|
|
Tcl_AppendResult(interp, otherInterp->result, (char *) NULL); |
646 |
|
|
} else if ((c == 'r') && (strncmp(argv[1], "record", length)) == 0) { |
647 |
|
|
Tcl_RecordAndEval(otherInterp, argv[2], TCL_EVAL_GLOBAL); |
648 |
|
|
result = TCL_OK; |
649 |
|
|
Tcl_ResetResult(interp); |
650 |
|
|
Tcl_AppendResult(interp, otherInterp->result, (char *) NULL); |
651 |
|
|
} else { |
652 |
|
|
Tcl_AppendResult(interp, "bad option \"", argv[1], |
653 |
|
|
"\": should be eval or record", |
654 |
|
|
(char *) NULL); |
655 |
|
|
result = TCL_ERROR; |
656 |
|
|
} |
657 |
|
|
Tcl_Release((ClientData) otherInterp); |
658 |
|
|
return result; |
659 |
|
|
} |
660 |
|
|
|
661 |
|
|
/* |
662 |
|
|
*---------------------------------------------------------------------- |
663 |
|
|
* |
664 |
|
|
* ConsoleDeleteProc -- |
665 |
|
|
* |
666 |
|
|
* If the console command is deleted we destroy the console window |
667 |
|
|
* and all associated data structures. |
668 |
|
|
* |
669 |
|
|
* Results: |
670 |
|
|
* None. |
671 |
|
|
* |
672 |
|
|
* Side effects: |
673 |
|
|
* A new console it created. |
674 |
|
|
* |
675 |
|
|
*---------------------------------------------------------------------- |
676 |
|
|
*/ |
677 |
|
|
|
678 |
|
|
static void |
679 |
|
|
ConsoleDeleteProc(clientData) |
680 |
|
|
ClientData clientData; |
681 |
|
|
{ |
682 |
|
|
ConsoleInfo *info = (ConsoleInfo *) clientData; |
683 |
|
|
|
684 |
|
|
Tcl_DeleteInterp(info->consoleInterp); |
685 |
|
|
info->consoleInterp = NULL; |
686 |
|
|
} |
687 |
|
|
|
688 |
|
|
/* |
689 |
|
|
*---------------------------------------------------------------------- |
690 |
|
|
* |
691 |
|
|
* ConsoleEventProc -- |
692 |
|
|
* |
693 |
|
|
* This event procedure is registered on the main window of the |
694 |
|
|
* slave interpreter. If the user or a running script causes the |
695 |
|
|
* main window to be destroyed, then we need to inform the console |
696 |
|
|
* interpreter by invoking "tkConsoleExit". |
697 |
|
|
* |
698 |
|
|
* Results: |
699 |
|
|
* None. |
700 |
|
|
* |
701 |
|
|
* Side effects: |
702 |
|
|
* Invokes the "tkConsoleExit" procedure in the console interp. |
703 |
|
|
* |
704 |
|
|
*---------------------------------------------------------------------- |
705 |
|
|
*/ |
706 |
|
|
|
707 |
|
|
static void |
708 |
|
|
ConsoleEventProc(clientData, eventPtr) |
709 |
|
|
ClientData clientData; |
710 |
|
|
XEvent *eventPtr; |
711 |
|
|
{ |
712 |
|
|
ConsoleInfo *info = (ConsoleInfo *) clientData; |
713 |
|
|
Tcl_Interp *consoleInterp; |
714 |
|
|
Tcl_DString dString; |
715 |
|
|
|
716 |
|
|
if (eventPtr->type == DestroyNotify) { |
717 |
|
|
|
718 |
|
|
Tcl_DStringInit(&dString); |
719 |
|
|
|
720 |
|
|
consoleInterp = info->consoleInterp; |
721 |
|
|
|
722 |
|
|
/* |
723 |
|
|
* It is possible that the console interpreter itself has |
724 |
|
|
* already been deleted. In that case the consoleInterp |
725 |
|
|
* field will be set to NULL. If the interpreter is already |
726 |
|
|
* gone, we do not have to do any work here. |
727 |
|
|
*/ |
728 |
|
|
|
729 |
|
|
if (consoleInterp == (Tcl_Interp *) NULL) { |
730 |
|
|
return; |
731 |
|
|
} |
732 |
|
|
Tcl_Preserve((ClientData) consoleInterp); |
733 |
|
|
Tcl_DStringAppend(&dString, "tkConsoleExit", -1); |
734 |
|
|
Tcl_Eval(consoleInterp, Tcl_DStringValue(&dString)); |
735 |
|
|
Tcl_DStringFree(&dString); |
736 |
|
|
Tcl_Release((ClientData) consoleInterp); |
737 |
|
|
} |
738 |
|
|
} |
739 |
|
|
|
740 |
|
|
/* |
741 |
|
|
*---------------------------------------------------------------------- |
742 |
|
|
* |
743 |
|
|
* TkConsolePrint -- |
744 |
|
|
* |
745 |
|
|
* Prints to the give text to the console. Given the main interp |
746 |
|
|
* this functions find the appropiate console interp and forwards |
747 |
|
|
* the text to be added to that console. |
748 |
|
|
* |
749 |
|
|
* Results: |
750 |
|
|
* None. |
751 |
|
|
* |
752 |
|
|
* Side effects: |
753 |
|
|
* None. |
754 |
|
|
* |
755 |
|
|
*---------------------------------------------------------------------- |
756 |
|
|
*/ |
757 |
|
|
|
758 |
|
|
void |
759 |
|
|
TkConsolePrint(interp, devId, buffer, size) |
760 |
|
|
Tcl_Interp *interp; /* Main interpreter. */ |
761 |
|
|
int devId; /* TCL_STDOUT for stdout, TCL_STDERR for |
762 |
|
|
* stderr. */ |
763 |
|
|
char *buffer; /* Text buffer. */ |
764 |
|
|
long size; /* Size of text buffer. */ |
765 |
|
|
{ |
766 |
|
|
Tcl_DString command, output; |
767 |
|
|
Tcl_CmdInfo cmdInfo; |
768 |
|
|
char *cmd; |
769 |
|
|
ConsoleInfo *info; |
770 |
|
|
Tcl_Interp *consoleInterp; |
771 |
|
|
int result; |
772 |
|
|
|
773 |
|
|
if (interp == NULL) { |
774 |
|
|
return; |
775 |
|
|
} |
776 |
|
|
|
777 |
|
|
if (devId == TCL_STDERR) { |
778 |
|
|
cmd = "tkConsoleOutput stderr "; |
779 |
|
|
} else { |
780 |
|
|
cmd = "tkConsoleOutput stdout "; |
781 |
|
|
} |
782 |
|
|
|
783 |
|
|
result = Tcl_GetCommandInfo(interp, "console", &cmdInfo); |
784 |
|
|
if (result == 0) { |
785 |
|
|
return; |
786 |
|
|
} |
787 |
|
|
info = (ConsoleInfo *) cmdInfo.clientData; |
788 |
|
|
|
789 |
|
|
Tcl_DStringInit(&output); |
790 |
|
|
Tcl_DStringAppend(&output, buffer, size); |
791 |
|
|
|
792 |
|
|
Tcl_DStringInit(&command); |
793 |
|
|
Tcl_DStringAppend(&command, cmd, (int) strlen(cmd)); |
794 |
|
|
Tcl_DStringAppendElement(&command, output.string); |
795 |
|
|
|
796 |
|
|
consoleInterp = info->consoleInterp; |
797 |
|
|
Tcl_Preserve((ClientData) consoleInterp); |
798 |
|
|
Tcl_Eval(consoleInterp, command.string); |
799 |
|
|
Tcl_Release((ClientData) consoleInterp); |
800 |
|
|
|
801 |
|
|
Tcl_DStringFree(&command); |
802 |
|
|
Tcl_DStringFree(&output); |
803 |
|
|
} |
804 |
|
|
|
805 |
|
|
/* End of tkconsole.c */ |