shared_source/c_tcl_base_7_5_w_mods/tclappinit.c

/* $Header$ */

/* 
 * tclAppInit.c --
 *
 *      Provides a default version of the main program and Tcl_AppInit
 *      procedure for Tcl applications (without Tk).  Note that this
 *      program must be built in Win32 console mode to work properly.
 *
 * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
 * Copyright (c) 1998-1999 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclappinit.c,v 1.2 2002/01/27 12:01:32 dtashley Exp $
 */


#include "tcl.h"
#include <windows.h>
#include <locale.h>

#ifdef TCL_TEST
extern int              Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
extern int              Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
extern int              Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
extern int              TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#ifdef TCL_THREADS
extern int              TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif
#endif /* TCL_TEST */

static void             setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));


/*
 *----------------------------------------------------------------------
 *
 * main --
 *
 *      This is the main program for the application.
 *
 * Results:
 *      None: Tcl_Main never returns here, so this procedure never
 *      returns either.
 *
 * Side effects:
 *      Whatever the application does.
 *
 *----------------------------------------------------------------------
 */

int
TclBaseMain(argc, argv)
    int argc;                   /* Number of command-line arguments. */
    char **argv;                /* Values of command-line arguments. */
{
    /*
     * The following #if block allows you to change the AppInit
     * function by using a #define of TCL_LOCAL_APPINIT instead
     * of rewriting this entire file.  The #if checks for that
     * #define and uses Tcl_AppInit if it doesn't exist.
     */
    
#ifndef TCL_LOCAL_APPINIT
#define TCL_LOCAL_APPINIT Tcl_AppInit    
#endif
    extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));
    
    /*
     * The following #if block allows you to change how Tcl finds the startup
     * script, prime the library or encoding paths, fiddle with the argv,
     * etc., without needing to rewrite Tcl_Main()
     */
    
#ifdef TCL_LOCAL_MAIN_HOOK
    extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv));
#endif

    char buffer[MAX_PATH +1];
    char *p;
    /*
     * Set up the default locale to be standard "C" locale so parsing
     * is performed correctly.
     */

    setlocale(LC_ALL, "C");
    setargv(&argc, &argv);

    /*
     * Replace argv[0] with full pathname of executable, and forward
     * slashes substituted for backslashes.
     */

    GetModuleFileName(NULL, buffer, sizeof(buffer));
    argv[0] = buffer;
    for (p = buffer; *p != '\0'; p++) {
        if (*p == '\\') {
            *p = '/';
        }
    }

#ifdef TCL_LOCAL_MAIN_HOOK
    TCL_LOCAL_MAIN_HOOK(&argc, &argv);
#endif

    Tcl_Main(argc, argv, TCL_LOCAL_APPINIT);

    return 0;                   /* Needed only to prevent compiler warning. */
}


/*
 *----------------------------------------------------------------------
 *
 * Tcl_AppInit --
 *
 *      This procedure performs application-specific initialization.
 *      Most applications, especially those that incorporate additional
 *      packages, will have their own version of this procedure.
 *
 * Results:
 *      Returns a standard Tcl completion code, and leaves an error
 *      message in the interp's result if an error occurs.
 *
 * Side effects:
 *      Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_AppInit(interp)
    Tcl_Interp *interp;         /* Interpreter for application. */
{
    if (Tcl_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }

#ifdef TCL_TEST
    if (Tcltest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
            (Tcl_PackageInitProc *) NULL);
    if (TclObjTest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
#ifdef TCL_THREADS
    if (TclThread_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
#endif
    if (Procbodytest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
            Procbodytest_SafeInit);
#endif /* TCL_TEST */

    /*
     * Call the init procedures for included packages.  Each call should
     * look like this:
     *
     * if (Mod_Init(interp) == TCL_ERROR) {
     *     return TCL_ERROR;
     * }
     *
     * where "Mod" is the name of the module.
     */

    /*
     * Call Tcl_CreateCommand for application-specific commands, if
     * they weren't already created by the init procedures called above.
     */

    /*
     * Specify a user-specific startup file to invoke if the application
     * is run interactively.  Typically the startup file is "~/.apprc"
     * where "app" is the name of the application.  If this line is deleted
     * then no user-specific startup file will be run under any conditions.
     */

    Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------------
 *
 * setargv --
 *
 *      Parse the Windows command line string into argc/argv.  Done here
 *      because we don't trust the builtin argument parser in crt0.  
 *      Windows applications are responsible for breaking their command
 *      line into arguments.
 *
 *      2N backslashes + quote -> N backslashes + begin quoted string
 *      2N + 1 backslashes + quote -> literal
 *      N backslashes + non-quote -> literal
 *      quote + quote in a quoted string -> single quote
 *      quote + quote not in quoted string -> empty string
 *      quote -> begin quoted string
 *
 * Results:
 *      Fills argcPtr with the number of arguments and argvPtr with the
 *      array of arguments.
 *
 * Side effects:
 *      Memory allocated.
 *
 *--------------------------------------------------------------------------
 */

static void
setargv(argcPtr, argvPtr)
    int *argcPtr;               /* Filled with number of argument strings. */
    char ***argvPtr;            /* Filled with argument strings (malloc'd). */
{
    char *cmdLine, *p, *arg, *argSpace;
    char **argv;
    int argc, size, inquote, copy, slashes;
    
    cmdLine = GetCommandLine(); /* INTL: BUG */

    /*
     * Precompute an overly pessimistic guess at the number of arguments
     * in the command line by counting non-space spans.
     */

    size = 2;
    for (p = cmdLine; *p != '\0'; p++) {
        if ((*p == ' ') || (*p == '\t')) {      /* INTL: ISO space. */
            size++;
            while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
                p++;
            }
            if (*p == '\0') {
                break;
            }
        }
    }
    argSpace = (char *) Tcl_Alloc(
            (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1));
    argv = (char **) argSpace;
    argSpace += size * sizeof(char *);
    size--;

    p = cmdLine;
    for (argc = 0; argc < size; argc++) {
        argv[argc] = arg = argSpace;
        while ((*p == ' ') || (*p == '\t')) {   /* INTL: ISO space. */
            p++;
        }
        if (*p == '\0') {
            break;
        }

        inquote = 0;
        slashes = 0;
        while (1) {
            copy = 1;
            while (*p == '\\') {
                slashes++;
                p++;
            }
            if (*p == '"') {
                if ((slashes & 1) == 0) {
                    copy = 0;
                    if ((inquote) && (p[1] == '"')) {
                        p++;
                        copy = 1;
                    } else {
                        inquote = !inquote;
                    }
                }
                slashes >>= 1;
            }

            while (slashes) {
                *arg = '\\';
                arg++;
                slashes--;
            }

            if ((*p == '\0')
                    || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */
                break;
            }
            if (copy != 0) {
                *arg = *p;
                arg++;
            }
            p++;
        }
        *arg = '\0';
        argSpace = arg + 1;
    }
    argv[argc] = NULL;

    *argcPtr = argc;
    *argvPtr = argv;
}


/* $History: tclappInit.c $
 * 
 * *****************  Version 1  *****************
 * User: Dtashley     Date: 1/02/01    Time: 1:26a
 * Created in $/IjuScripter, IjuConsole/Source/Tcl Base
 * Initial check-in.
 */ 

/* End of TCLAPPINIT.C */

1	dashley	64	/* $Header$ */
2	dashley	25
3			/*
4			* tclAppInit.c --
5			*
6			* Provides a default version of the main program and Tcl_AppInit
7			* procedure for Tcl applications (without Tk). Note that this
8			* program must be built in Win32 console mode to work properly.
9			*
10			* Copyright (c) 1996-1997 by Sun Microsystems, Inc.
11			* Copyright (c) 1998-1999 by Scriptics Corporation.
12			*
13			* See the file "license.terms" for information on usage and redistribution
14			* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
15			*
16			* RCS: @(#) $Id: tclappinit.c,v 1.2 2002/01/27 12:01:32 dtashley Exp $
17			*/
18
19
20			#include "tcl.h"
21			#include <windows.h>
22			#include <locale.h>
23
24			#ifdef TCL_TEST
25			extern int Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
26			extern int Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
27			extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
28			extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
29			#ifdef TCL_THREADS
30			extern int TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp));
31			#endif
32			#endif /* TCL_TEST */
33
34			static void setargv _ANSI_ARGS_((int argcPtr, char **argvPtr));
35
36
37			/*
38			*----------------------------------------------------------------------
39			*
40			* main --
41			*
42			* This is the main program for the application.
43			*
44			* Results:
45			* None: Tcl_Main never returns here, so this procedure never
46			* returns either.
47			*
48			* Side effects:
49			* Whatever the application does.
50			*
51			*----------------------------------------------------------------------
52			*/
53
54			int
55			TclBaseMain(argc, argv)
56			int argc; /* Number of command-line arguments. */
57			char *argv; / Values of command-line arguments. */
58			{
59			/*
60			* The following #if block allows you to change the AppInit
61			* function by using a #define of TCL_LOCAL_APPINIT instead
62			* of rewriting this entire file. The #if checks for that
63			* #define and uses Tcl_AppInit if it doesn't exist.
64			*/
65
66			#ifndef TCL_LOCAL_APPINIT
67			#define TCL_LOCAL_APPINIT Tcl_AppInit
68			#endif
69			extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));
70
71			/*
72			* The following #if block allows you to change how Tcl finds the startup
73			* script, prime the library or encoding paths, fiddle with the argv,
74			* etc., without needing to rewrite Tcl_Main()
75			*/
76
77			#ifdef TCL_LOCAL_MAIN_HOOK
78			extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int argc, char **argv));
79			#endif
80
81			char buffer[MAX_PATH +1];
82			char *p;
83			/*
84			* Set up the default locale to be standard "C" locale so parsing
85			* is performed correctly.
86			*/
87
88			setlocale(LC_ALL, "C");
89			setargv(&argc, &argv);
90
91			/*
92			* Replace argv[0] with full pathname of executable, and forward
93			* slashes substituted for backslashes.
94			*/
95
96			GetModuleFileName(NULL, buffer, sizeof(buffer));
97			argv[0] = buffer;
98			for (p = buffer; *p != '\0'; p++) {
99			if (*p == '\\') {
100			*p = '/';
101			}
102			}
103
104			#ifdef TCL_LOCAL_MAIN_HOOK
105			TCL_LOCAL_MAIN_HOOK(&argc, &argv);
106			#endif
107
108			Tcl_Main(argc, argv, TCL_LOCAL_APPINIT);
109
110			return 0; /* Needed only to prevent compiler warning. */
111			}
112
113
114			/*
115			*----------------------------------------------------------------------
116			*
117			* Tcl_AppInit --
118			*
119			* This procedure performs application-specific initialization.
120			* Most applications, especially those that incorporate additional
121			* packages, will have their own version of this procedure.
122			*
123			* Results:
124			* Returns a standard Tcl completion code, and leaves an error
125			* message in the interp's result if an error occurs.
126			*
127			* Side effects:
128			* Depends on the startup script.
129			*
130			*----------------------------------------------------------------------
131			*/
132
133			int
134			Tcl_AppInit(interp)
135			Tcl_Interp interp; / Interpreter for application. */
136			{
137			if (Tcl_Init(interp) == TCL_ERROR) {
138			return TCL_ERROR;
139			}
140
141			#ifdef TCL_TEST
142			if (Tcltest_Init(interp) == TCL_ERROR) {
143			return TCL_ERROR;
144			}
145			Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
146			(Tcl_PackageInitProc *) NULL);
147			if (TclObjTest_Init(interp) == TCL_ERROR) {
148			return TCL_ERROR;
149			}
150			#ifdef TCL_THREADS
151			if (TclThread_Init(interp) == TCL_ERROR) {
152			return TCL_ERROR;
153			}
154			#endif
155			if (Procbodytest_Init(interp) == TCL_ERROR) {
156			return TCL_ERROR;
157			}
158			Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
159			Procbodytest_SafeInit);
160			#endif /* TCL_TEST */
161
162			/*
163			* Call the init procedures for included packages. Each call should
164			* look like this:
165			*
166			* if (Mod_Init(interp) == TCL_ERROR) {
167			* return TCL_ERROR;
168			* }
169			*
170			* where "Mod" is the name of the module.
171			*/
172
173			/*
174			* Call Tcl_CreateCommand for application-specific commands, if
175			* they weren't already created by the init procedures called above.
176			*/
177
178			/*
179			* Specify a user-specific startup file to invoke if the application
180			* is run interactively. Typically the startup file is "~/.apprc"
181			* where "app" is the name of the application. If this line is deleted
182			* then no user-specific startup file will be run under any conditions.
183			*/
184
185			Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
186			return TCL_OK;
187			}
188
189			/*
190			*-------------------------------------------------------------------------
191			*
192			* setargv --
193			*
194			* Parse the Windows command line string into argc/argv. Done here
195			* because we don't trust the builtin argument parser in crt0.
196			* Windows applications are responsible for breaking their command
197			* line into arguments.
198			*
199			* 2N backslashes + quote -> N backslashes + begin quoted string
200			* 2N + 1 backslashes + quote -> literal
201			* N backslashes + non-quote -> literal
202			* quote + quote in a quoted string -> single quote
203			* quote + quote not in quoted string -> empty string
204			* quote -> begin quoted string
205			*
206			* Results:
207			* Fills argcPtr with the number of arguments and argvPtr with the
208			* array of arguments.
209			*
210			* Side effects:
211			* Memory allocated.
212			*
213			*--------------------------------------------------------------------------
214			*/
215
216			static void
217			setargv(argcPtr, argvPtr)
218			int argcPtr; / Filled with number of argument strings. */
219			char **argvPtr; / Filled with argument strings (malloc'd). */
220			{
221			char cmdLine, p, arg, argSpace;
222			char **argv;
223			int argc, size, inquote, copy, slashes;
224
225			cmdLine = GetCommandLine(); /* INTL: BUG */
226
227			/*
228			* Precompute an overly pessimistic guess at the number of arguments
229			* in the command line by counting non-space spans.
230			*/
231
232			size = 2;
233			for (p = cmdLine; *p != '\0'; p++) {
234			if ((p == ' ') \|\| (p == '\t')) { /* INTL: ISO space. */
235			size++;
236			while ((p == ' ') \|\| (p == '\t')) { /* INTL: ISO space. */
237			p++;
238			}
239			if (*p == '\0') {
240			break;
241			}
242			}
243			}
244			argSpace = (char *) Tcl_Alloc(
245			(unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1));
246			argv = (char **) argSpace;
247			argSpace += size * sizeof(char *);
248			size--;
249
250			p = cmdLine;
251			for (argc = 0; argc < size; argc++) {
252			argv[argc] = arg = argSpace;
253			while ((p == ' ') \|\| (p == '\t')) { /* INTL: ISO space. */
254			p++;
255			}
256			if (*p == '\0') {
257			break;
258			}
259
260			inquote = 0;
261			slashes = 0;
262			while (1) {
263			copy = 1;
264			while (*p == '\\') {
265			slashes++;
266			p++;
267			}
268			if (*p == '"') {
269			if ((slashes & 1) == 0) {
270			copy = 0;
271			if ((inquote) && (p[1] == '"')) {
272			p++;
273			copy = 1;
274			} else {
275			inquote = !inquote;
276			}
277			}
278			slashes >>= 1;
279			}
280
281			while (slashes) {
282			*arg = '\\';
283			arg++;
284			slashes--;
285			}
286
287			if ((*p == '\0')
288			\|\| (!inquote && ((p == ' ') \|\| (p == '\t')))) { /* INTL: ISO space. */
289			break;
290			}
291			if (copy != 0) {
292			arg = p;
293			arg++;
294			}
295			p++;
296			}
297			*arg = '\0';
298			argSpace = arg + 1;
299			}
300			argv[argc] = NULL;
301
302			*argcPtr = argc;
303			*argvPtr = argv;
304			}
305
306
307			/* $History: tclappInit.c $
308			*
309			* *************** Version 1 ***************
310			* User: Dtashley Date: 1/02/01 Time: 1:26a
311			* Created in $/IjuScripter, IjuConsole/Source/Tcl Base
312			* Initial check-in.
313			*/
314
315			/* End of TCLAPPINIT.C */
316