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;
}

/* End of tclappinit.c */

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