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-rw-r--r--generic/tkMain.c534
1 files changed, 278 insertions, 256 deletions
diff --git a/generic/tkMain.c b/generic/tkMain.c
index 34f9054..fee669e 100644
--- a/generic/tkMain.c
+++ b/generic/tkMain.c
@@ -1,76 +1,141 @@
-/*
+/*
* tkMain.c --
*
* This file contains a generic main program for Tk-based applications.
* It can be used as-is for many applications, just by supplying a
- * different appInitProc procedure for each specific application.
- * Or, it can be used as a template for creating new main programs
- * for Tk applications.
+ * different appInitProc function for each specific application. Or, it
+ * can be used as a template for creating new main programs for Tk
+ * applications.
*
* Copyright (c) 1990-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
*
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+/**
+ * On Windows, this file needs to be compiled twice, once with
+ * TK_ASCII_MAIN defined. This way both Tk_MainEx and Tk_MainExW
+ * can be implemented, sharing the same source code.
*/
+#if defined(TK_ASCII_MAIN)
+# ifdef UNICODE
+# undef UNICODE
+# undef _UNICODE
+# else
+# define UNICODE
+# define _UNICODE
+# endif
+#endif
#include <ctype.h>
#include <stdio.h>
#include <string.h>
-#include <tcl.h>
-#include <tclInt.h>
-#include <tk.h>
#include "tkInt.h"
#ifdef NO_STDLIB_H
# include "../compat/stdlib.h"
#else
# include <stdlib.h>
#endif
+
+/*
+ * The default prompt used when the user has not overridden it.
+ */
+
+#define DEFAULT_PRIMARY_PROMPT "% "
+
+/*
+ * This file can be compiled on Windows in UNICODE mode, as well as
+ * on all other platforms using the native encoding. This is done
+ * by using the normal Windows functions like _tcscmp, but on
+ * platforms which don't have <tchar.h> we have to translate that
+ * to strcmp here.
+ */
#ifdef __WIN32__
-#include "tkWinInt.h"
+# include "tkWinInt.h"
+#else
+# define TCHAR char
+# define TEXT(arg) arg
+# define _tcscmp strcmp
+# define _tcslen strlen
+# define _tcsncmp strncmp
#endif
+
#ifdef MAC_OSX_TK
#include "tkMacOSXInt.h"
#endif
-
-typedef struct ThreadSpecificData {
- Tcl_Interp *interp; /* Interpreter for this thread. */
- Tcl_DString command; /* Used to assemble lines of terminal input
- * into Tcl commands. */
- Tcl_DString line; /* Used to read the next line from the
- * terminal input. */
- int tty; /* Non-zero means standard input is a
- * terminal-like device. Zero means it's
- * a file. */
-} ThreadSpecificData;
-static Tcl_ThreadDataKey dataKey;
+/*
+ * Further on, in UNICODE mode, we need to use Tcl_NewUnicodeObj,
+ * while otherwise NewNativeObj is needed (which provides proper
+ * conversion from native encoding to UTF-8).
+ */
+#ifdef UNICODE
+# define NewNativeObj Tcl_NewUnicodeObj
+#else /* !UNICODE */
+ static Tcl_Obj *NewNativeObj(char *string, int length) {
+ Tcl_Obj *obj;
+ Tcl_DString ds;
+ Tcl_ExternalToUtfDString(NULL, string, length, &ds);
+ obj = Tcl_NewStringObj(Tcl_DStringValue(&ds), Tcl_DStringLength(&ds));
+ Tcl_DStringFree(&ds);
+ return obj;
+}
+#endif /* !UNICODE */
/*
- * Declarations for various library procedures and variables (don't want
- * to include tkInt.h or tkPort.h here, because people might copy this
- * file out of the Tk source directory to make their own modified versions).
- * Note: don't declare "exit" here even though a declaration is really
- * needed, because it will conflict with a declaration elsewhere on
- * some systems.
+ * Declarations for various library functions and variables (don't want to
+ * include tkInt.h or tkPort.h here, because people might copy this file out
+ * of the Tk source directory to make their own modified versions). Note: do
+ * not declare "exit" here even though a declaration is really needed, because
+ * it will conflict with a declaration elsewhere on some systems.
*/
-#if !defined(__WIN32__) && !defined(_WIN32)
-#if !defined(MAC_TCL)
-extern int isatty _ANSI_ARGS_((int fd));
+#if defined(_WIN32)
+#define isatty WinIsTty
+static int WinIsTty(int fd) {
+ HANDLE handle;
+ /*
+ * For now, under Windows, we assume we are not running as a console mode
+ * app, so we need to use the GUI console. In order to enable this, we
+ * always claim to be running on a tty. This probably isn't the right way
+ * to do it.
+ */
+ handle = GetStdHandle(STD_INPUT_HANDLE + fd);
+ /*
+ * If it's a bad or closed handle, then it's been connected to a wish
+ * console window. A character file handle is a tty by definition.
+ */
+ return (handle == INVALID_HANDLE_VALUE) || (handle == 0)
+ || (GetFileType(handle) == FILE_TYPE_UNKNOWN)
+ || (GetFileType(handle) == FILE_TYPE_CHAR);
+}
#else
-#include <unistd.h>
-#endif
-extern char * strrchr _ANSI_ARGS_((CONST char *string, int c));
+extern int isatty(int fd);
#endif
+typedef struct InteractiveState {
+ Tcl_Channel input; /* The standard input channel from which lines
+ * are read. */
+ int tty; /* Non-zero means standard input is a
+ * terminal-like device. Zero means it's a
+ * file. */
+ Tcl_DString command; /* Used to assemble lines of terminal input
+ * into Tcl commands. */
+ Tcl_DString line; /* Used to read the next line from the
+ * terminal input. */
+ int gotPartial;
+ Tcl_Interp *interp; /* Interpreter that evaluates interactive
+ * commands. */
+} InteractiveState;
+
/*
- * Forward declarations for procedures defined later in this file.
+ * Forward declarations for functions defined later in this file.
*/
-static void Prompt _ANSI_ARGS_((Tcl_Interp *interp, int partial));
-static void StdinProc _ANSI_ARGS_((ClientData clientData,
- int mask));
+static void Prompt(Tcl_Interp *interp, InteractiveState *isPtr);
+static void StdinProc(ClientData clientData, int mask);
/*
*----------------------------------------------------------------------
@@ -80,101 +145,103 @@ static void StdinProc _ANSI_ARGS_((ClientData clientData,
* Main program for Wish and most other Tk-based applications.
*
* Results:
- * None. This procedure never returns (it exits the process when
- * it's done.
+ * None. This function never returns (it exits the process when it's
+ * done).
*
* Side effects:
- * This procedure initializes the Tk world and then starts
- * interpreting commands; almost anything could happen, depending
- * on the script being interpreted.
+ * This function initializes the Tk world and then starts interpreting
+ * commands; almost anything could happen, depending on the script being
+ * interpreted.
*
*----------------------------------------------------------------------
*/
+
void
-Tk_MainEx(argc, argv, appInitProc, interp)
- int argc; /* Number of arguments. */
- char **argv; /* Array of argument strings. */
- Tcl_AppInitProc *appInitProc; /* Application-specific initialization
- * procedure to call after most
- * initialization but before starting
- * to execute commands. */
- Tcl_Interp *interp;
+Tk_MainEx(
+ int argc, /* Number of arguments. */
+ TCHAR **argv, /* Array of argument strings. */
+ Tcl_AppInitProc *appInitProc,
+ /* Application-specific initialization
+ * function to call after most initialization
+ * but before starting to execute commands. */
+ Tcl_Interp *interp)
{
- Tcl_Obj *argvPtr;
+ Tcl_Obj *path, *argvPtr, *appName;
+ const char *encodingName;
int code, nullStdin = 0;
- size_t length;
- Tcl_Channel inChannel, outChannel;
- Tcl_DString appName;
- ThreadSpecificData *tsdPtr;
-#ifdef __WIN32__
- HANDLE handle;
-#endif
+ Tcl_Channel chan;
+ InteractiveState is;
/*
- * Ensure that we are getting the matching version of Tcl. This is
- * really only an issue when Tk is loaded dynamically.
+ * Ensure that we are getting a compatible version of Tcl. This is really
+ * only an issue when Tk is loaded dynamically.
*/
- if (Tcl_InitStubs(interp, TCL_VERSION, 1) == NULL) {
+ if (Tcl_InitStubs(interp, TCL_VERSION, 0) == NULL) {
abort();
}
- tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- Tcl_FindExecutable(argv[0]);
- tsdPtr->interp = interp;
- Tcl_Preserve((ClientData) interp);
+ Tcl_InitMemory(interp);
+
+ is.interp = interp;
+ is.gotPartial = 0;
+ Tcl_Preserve(interp);
-#if (defined(__WIN32__) || defined(MAC_TCL))
+#if defined(__WIN32__)
Tk_InitConsoleChannels(interp);
#endif
#ifdef MAC_OSX_TK
- if (TclGetStartupScriptFileName() == NULL) {
- TkMacOSXDefaultStartupScript();
+ if (Tcl_GetStartupScript(NULL) == NULL) {
+ TkMacOSXDefaultStartupScript();
}
#endif
-
-#ifdef TCL_MEM_DEBUG
- Tcl_InitMemory(interp);
-#endif
/*
- * Parse command-line arguments. A leading "-file" argument is
- * ignored (a historical relic from the distant past). If the
- * next argument doesn't start with a "-" then strip it off and
- * use it as the name of a script file to process.
+ * If the application has not already set a startup script, parse the
+ * first few command line arguments to determine the script path and
+ * encoding.
*/
- if (argc > 1) {
- length = strlen(argv[1]);
- if ((length >= 2) && (strncmp(argv[1], "-file", length) == 0)) {
- argc--;
- argv++;
- }
- }
- if (TclGetStartupScriptFileName() == NULL) {
- if ((argc > 1) && (argv[1][0] != '-')) {
- TclSetStartupScriptFileName(argv[1]);
+ if (NULL == Tcl_GetStartupScript(NULL)) {
+ size_t length;
+
+ /*
+ * Check whether first 3 args (argv[1] - argv[3]) look like
+ * -encoding ENCODING FILENAME
+ * or like
+ * FILENAME
+ * or like
+ * -file FILENAME (ancient history support only)
+ */
+
+ if ((argc > 3) && (0 == _tcscmp(TEXT("-encoding"), argv[1]))
+ && (TEXT('-') != argv[3][0])) {
+ Tcl_Obj *value = NewNativeObj(argv[2], -1);
+ Tcl_SetStartupScript(NewNativeObj(argv[3], -1), Tcl_GetString(value));
+ Tcl_DecrRefCount(value);
+ argc -= 3;
+ argv += 3;
+ } else if ((argc > 1) && (TEXT('-') != argv[1][0])) {
+ Tcl_SetStartupScript(NewNativeObj(argv[1], -1), NULL);
argc--;
argv++;
+ } else if ((argc > 2) && (length = _tcslen(argv[1]))
+ && (length > 1) && (0 == _tcsncmp(TEXT("-file"), argv[1], length))
+ && (TEXT('-') != argv[2][0])) {
+ Tcl_SetStartupScript(NewNativeObj(argv[2], -1), NULL);
+ argc -= 2;
+ argv += 2;
}
}
-
- /*
- * Make command-line arguments available in the Tcl variables "argc"
- * and "argv".
- */
- if (TclGetStartupScriptFileName() == NULL) {
- Tcl_ExternalToUtfDString(NULL, argv[0], -1, &appName);
+ path = Tcl_GetStartupScript(&encodingName);
+ if (path == NULL) {
+ appName = NewNativeObj(argv[0], -1);
} else {
- TclSetStartupScriptFileName(Tcl_ExternalToUtfDString(NULL,
- TclGetStartupScriptFileName(), -1, &appName));
+ appName = path;
}
- Tcl_SetVar(interp, "argv0", Tcl_DStringValue(&appName), TCL_GLOBAL_ONLY);
- Tcl_DStringFree(&appName);
+ Tcl_SetVar2Ex(interp, "argv0", NULL, appName, TCL_GLOBAL_ONLY);
argc--;
argv++;
@@ -182,11 +249,7 @@ Tk_MainEx(argc, argv, appInitProc, interp)
argvPtr = Tcl_NewListObj(0, NULL);
while (argc--) {
- Tcl_DString ds;
- Tcl_ExternalToUtfDString(NULL, *argv++, -1, &ds);
- Tcl_ListObjAppendElement(NULL, argvPtr, Tcl_NewStringObj(
- Tcl_DStringValue(&ds), Tcl_DStringLength(&ds)));
- Tcl_DStringFree(&ds);
+ Tcl_ListObjAppendElement(NULL, argvPtr, NewNativeObj(*argv++, -1));
}
Tcl_SetVar2Ex(interp, "argv", NULL, argvPtr, TCL_GLOBAL_ONLY);
@@ -194,74 +257,45 @@ Tk_MainEx(argc, argv, appInitProc, interp)
* Set the "tcl_interactive" variable.
*/
-#ifdef __WIN32__
- /*
- * For now, under Windows, we assume we are not running as a console mode
- * app, so we need to use the GUI console. In order to enable this, we
- * always claim to be running on a tty. This probably isn't the right
- * way to do it.
- */
-
- handle = GetStdHandle(STD_INPUT_HANDLE);
-
- if ((handle == INVALID_HANDLE_VALUE) || (handle == 0)
- || (GetFileType(handle) == FILE_TYPE_UNKNOWN)) {
- /*
- * If it's a bad or closed handle, then it's been connected
- * to a wish console window.
- */
-
- tsdPtr->tty = 1;
- } else if (GetFileType(handle) == FILE_TYPE_CHAR) {
- /*
- * A character file handle is a tty by definition.
- */
-
- tsdPtr->tty = 1;
- } else {
- tsdPtr->tty = 0;
- }
-
-#else
- tsdPtr->tty = isatty(0);
-#endif
+ is.tty = isatty(0);
#if defined(MAC_OSX_TK)
/*
* On TkAqua, if we don't have a TTY and stdin is a special character file
* of length 0, (e.g. /dev/null, which is what Finder sets when double
* clicking Wish) then use the GUI console.
*/
-
- if (!tsdPtr->tty) {
+
+ if (!is.tty) {
struct stat st;
nullStdin = fstat(0, &st) || (S_ISCHR(st.st_mode) && !st.st_blocks);
}
#endif
- Tcl_SetVar(interp, "tcl_interactive",
- ((TclGetStartupScriptFileName() == NULL) && (tsdPtr->tty
- || nullStdin)) ? "1" : "0", TCL_GLOBAL_ONLY);
+ Tcl_SetVar2Ex(interp, "tcl_interactive", NULL,
+ Tcl_NewIntObj(!path && (is.tty || nullStdin)), TCL_GLOBAL_ONLY);
/*
* Invoke application-specific initialization.
*/
- if ((*appInitProc)(interp) != TCL_OK) {
+ if (appInitProc(interp) != TCL_OK) {
TkpDisplayWarning(Tcl_GetStringResult(interp),
- "Application initialization failed");
+ "application-specific initialization failed");
}
/*
- * Invoke the script specified on the command line, if any.
+ * Invoke the script specified on the command line, if any. Must fetch it
+ * again, as the appInitProc might have reset it.
*/
- if (TclGetStartupScriptFileName() != NULL) {
+ path = Tcl_GetStartupScript(&encodingName);
+ if (path != NULL) {
Tcl_ResetResult(interp);
- code = Tcl_EvalFile(interp, TclGetStartupScriptFileName());
+ code = Tcl_FSEvalFileEx(interp, path, encodingName);
if (code != TCL_OK) {
/*
- * The following statement guarantees that the errorInfo
- * variable is set properly.
+ * The following statement guarantees that the errorInfo variable
+ * is set properly.
*/
Tcl_AddErrorInfo(interp, "");
@@ -270,7 +304,7 @@ Tk_MainEx(argc, argv, appInitProc, interp)
Tcl_DeleteInterp(interp);
Tcl_Exit(1);
}
- tsdPtr->tty = 0;
+ is.tty = 0;
} else {
/*
@@ -283,32 +317,32 @@ Tk_MainEx(argc, argv, appInitProc, interp)
* Establish a channel handler for stdin.
*/
- inChannel = Tcl_GetStdChannel(TCL_STDIN);
- if (inChannel) {
- Tcl_CreateChannelHandler(inChannel, TCL_READABLE, StdinProc,
- (ClientData) inChannel);
+ is.input = Tcl_GetStdChannel(TCL_STDIN);
+ if (is.input) {
+ Tcl_CreateChannelHandler(is.input, TCL_READABLE, StdinProc, &is);
}
- if (tsdPtr->tty) {
- Prompt(interp, 0);
+ if (is.tty) {
+ Prompt(interp, &is);
}
}
- outChannel = Tcl_GetStdChannel(TCL_STDOUT);
- if (outChannel) {
- Tcl_Flush(outChannel);
+ chan = Tcl_GetStdChannel(TCL_STDOUT);
+ if (chan) {
+ Tcl_Flush(chan);
}
- Tcl_DStringInit(&tsdPtr->command);
- Tcl_DStringInit(&tsdPtr->line);
+ Tcl_DStringInit(&is.command);
+ Tcl_DStringInit(&is.line);
Tcl_ResetResult(interp);
/*
- * Loop infinitely, waiting for commands to execute. When there
- * are no windows left, Tk_MainLoop returns and we exit.
+ * Loop infinitely, waiting for commands to execute. When there are no
+ * windows left, Tk_MainLoop returns and we exit.
*/
Tk_MainLoop();
Tcl_DeleteInterp(interp);
- Tcl_Release((ClientData) interp);
+ Tcl_Release(interp);
+ Tcl_SetStartupScript(NULL, NULL);
Tcl_Exit(0);
}
@@ -317,78 +351,70 @@ Tk_MainEx(argc, argv, appInitProc, interp)
*
* StdinProc --
*
- * This procedure is invoked by the event dispatcher whenever
- * standard input becomes readable. It grabs the next line of
- * input characters, adds them to a command being assembled, and
- * executes the command if it's complete.
+ * This function is invoked by the event dispatcher whenever standard
+ * input becomes readable. It grabs the next line of input characters,
+ * adds them to a command being assembled, and executes the command if
+ * it's complete.
*
* Results:
* None.
*
* Side effects:
- * Could be almost arbitrary, depending on the command that's
- * typed.
+ * Could be almost arbitrary, depending on the command that's typed.
*
*----------------------------------------------------------------------
*/
/* ARGSUSED */
static void
-StdinProc(clientData, mask)
- ClientData clientData; /* Not used. */
- int mask; /* Not used. */
+StdinProc(
+ ClientData clientData, /* The state of interactive cmd line */
+ int mask) /* Not used. */
{
- static int gotPartial = 0;
char *cmd;
int code, count;
- Tcl_Channel chan = (Tcl_Channel) clientData;
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- Tcl_Interp *interp = tsdPtr->interp;
-
- count = Tcl_Gets(chan, &tsdPtr->line);
-
- if (count < 0) {
- if (!gotPartial) {
- if (tsdPtr->tty) {
- Tcl_Exit(0);
- } else {
- Tcl_DeleteChannelHandler(chan, StdinProc, (ClientData) chan);
- }
- return;
- }
+ InteractiveState *isPtr = clientData;
+ Tcl_Channel chan = isPtr->input;
+ Tcl_Interp *interp = isPtr->interp;
+
+ count = Tcl_Gets(chan, &isPtr->line);
+
+ if (count < 0 && !isPtr->gotPartial) {
+ if (isPtr->tty) {
+ Tcl_Exit(0);
+ } else {
+ Tcl_DeleteChannelHandler(chan, StdinProc, isPtr);
+ }
+ return;
}
- (void) Tcl_DStringAppend(&tsdPtr->command, Tcl_DStringValue(
- &tsdPtr->line), -1);
- cmd = Tcl_DStringAppend(&tsdPtr->command, "\n", -1);
- Tcl_DStringFree(&tsdPtr->line);
+ Tcl_DStringAppend(&isPtr->command, Tcl_DStringValue(&isPtr->line), -1);
+ cmd = Tcl_DStringAppend(&isPtr->command, "\n", -1);
+ Tcl_DStringFree(&isPtr->line);
if (!Tcl_CommandComplete(cmd)) {
- gotPartial = 1;
- goto prompt;
+ isPtr->gotPartial = 1;
+ goto prompt;
}
- gotPartial = 0;
+ isPtr->gotPartial = 0;
/*
* Disable the stdin channel handler while evaluating the command;
- * otherwise if the command re-enters the event loop we might
- * process commands from stdin before the current command is
- * finished. Among other things, this will trash the text of the
- * command being evaluated.
+ * otherwise if the command re-enters the event loop we might process
+ * commands from stdin before the current command is finished. Among other
+ * things, this will trash the text of the command being evaluated.
*/
- Tcl_CreateChannelHandler(chan, 0, StdinProc, (ClientData) chan);
+ Tcl_CreateChannelHandler(chan, 0, StdinProc, isPtr);
code = Tcl_RecordAndEval(interp, cmd, TCL_EVAL_GLOBAL);
-
- chan = Tcl_GetStdChannel(TCL_STDIN);
- if (chan) {
- Tcl_CreateChannelHandler(chan, TCL_READABLE, StdinProc,
- (ClientData) chan);
+
+ isPtr->input = Tcl_GetStdChannel(TCL_STDIN);
+ if (isPtr->input) {
+ Tcl_CreateChannelHandler(isPtr->input, TCL_READABLE, StdinProc, isPtr);
}
- Tcl_DStringFree(&tsdPtr->command);
+ Tcl_DStringFree(&isPtr->command);
if (Tcl_GetStringResult(interp)[0] != '\0') {
- if ((code != TCL_OK) || (tsdPtr->tty)) {
- chan = Tcl_GetStdChannel(TCL_STDOUT);
+ if ((code != TCL_OK) || (isPtr->tty)) {
+ chan = Tcl_GetStdChannel((code != TCL_OK) ? TCL_STDERR : TCL_STDOUT);
if (chan) {
Tcl_WriteObj(chan, Tcl_GetObjResult(interp));
Tcl_WriteChars(chan, "\n", 1);
@@ -397,12 +423,12 @@ StdinProc(clientData, mask)
}
/*
- * Output a prompt.
+ * If a tty stdin is still around, output a prompt.
*/
- prompt:
- if (tsdPtr->tty) {
- Prompt(interp, gotPartial);
+ prompt:
+ if (isPtr->tty && (isPtr->input != NULL)) {
+ Prompt(interp, isPtr);
}
Tcl_ResetResult(interp);
}
@@ -412,68 +438,64 @@ StdinProc(clientData, mask)
*
* Prompt --
*
- * Issue a prompt on standard output, or invoke a script
- * to issue the prompt.
+ * Issue a prompt on standard output, or invoke a script to issue the
+ * prompt.
*
* Results:
* None.
*
* Side effects:
- * A prompt gets output, and a Tcl script may be evaluated
- * in interp.
+ * A prompt gets output, and a Tcl script may be evaluated in interp.
*
*----------------------------------------------------------------------
*/
static void
-Prompt(interp, partial)
- Tcl_Interp *interp; /* Interpreter to use for prompting. */
- int partial; /* Non-zero means there already
- * exists a partial command, so use
- * the secondary prompt. */
+Prompt(
+ Tcl_Interp *interp, /* Interpreter to use for prompting. */
+ InteractiveState *isPtr) /* InteractiveState. */
{
- Tcl_Obj *promptCmd;
+ Tcl_Obj *promptCmdPtr;
int code;
- Tcl_Channel outChannel, errChannel;
-
- promptCmd = Tcl_GetVar2Ex(interp,
- partial ? "tcl_prompt2" : "tcl_prompt1", NULL, TCL_GLOBAL_ONLY);
- if (promptCmd == NULL) {
-defaultPrompt:
- if (!partial) {
-
- /*
- * We must check that outChannel is a real channel - it
- * is possible that someone has transferred stdout out of
- * this interpreter with "interp transfer".
- */
-
- outChannel = Tcl_GetChannel(interp, "stdout", NULL);
- if (outChannel != (Tcl_Channel) NULL) {
- Tcl_WriteChars(outChannel, "% ", 2);
- }
+ Tcl_Channel chan;
+
+ promptCmdPtr = Tcl_GetVar2Ex(interp,
+ isPtr->gotPartial ? "tcl_prompt2" : "tcl_prompt1", NULL, TCL_GLOBAL_ONLY);
+ if (promptCmdPtr == NULL) {
+ defaultPrompt:
+ if (!isPtr->gotPartial) {
+ chan = Tcl_GetStdChannel(TCL_STDOUT);
+ if (chan != NULL) {
+ Tcl_WriteChars(chan, DEFAULT_PRIMARY_PROMPT,
+ strlen(DEFAULT_PRIMARY_PROMPT));
+ }
}
} else {
- code = Tcl_EvalObjEx(interp, promptCmd, TCL_EVAL_GLOBAL);
+ code = Tcl_EvalObjEx(interp, promptCmdPtr, TCL_EVAL_GLOBAL);
if (code != TCL_OK) {
Tcl_AddErrorInfo(interp,
"\n (script that generates prompt)");
- /*
- * We must check that errChannel is a real channel - it
- * is possible that someone has transferred stderr out of
- * this interpreter with "interp transfer".
- */
-
- errChannel = Tcl_GetChannel(interp, "stderr", NULL);
- if (errChannel != (Tcl_Channel) NULL) {
- Tcl_WriteObj(errChannel, Tcl_GetObjResult(interp));
- Tcl_WriteChars(errChannel, "\n", 1);
- }
+ if (Tcl_GetStringResult(interp)[0] != '\0') {
+ chan = Tcl_GetStdChannel(TCL_STDERR);
+ if (chan != NULL) {
+ Tcl_WriteObj(chan, Tcl_GetObjResult(interp));
+ Tcl_WriteChars(chan, "\n", 1);
+ }
+ }
goto defaultPrompt;
}
}
- outChannel = Tcl_GetChannel(interp, "stdout", NULL);
- if (outChannel != (Tcl_Channel) NULL) {
- Tcl_Flush(outChannel);
+
+ chan = Tcl_GetStdChannel(TCL_STDOUT);
+ if (chan != NULL) {
+ Tcl_Flush(chan);
}
}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */