PC World 2002 May/PCWorld_2002-05_cd.bin/Software/TemaCD/activetcltk/ActiveTcl8.3.4.1-8.win32-ix86.exe/ActiveTcl8.3.4.1-win32-ix86/lib/tcl8.3/tclAppInit.c

C/C++ Source or Header | 2001-10-22 | 4.8 KB | 183 lines

/*
 * tclAppInit.c --
 *
 *    Provides a default version of the main program and Tcl_AppInit
 *    procedure for Tcl applications (without Tk).
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994-1997 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 1.9 2000/04/18 23:06:39 hobbs Exp $
 */

#include "tcl.h"

/*
 * The following variable is a special hack that is needed in order for
 * Sun shared libraries to be used for Tcl.
 */

extern int matherr();
int *tclDummyMathPtr = (int *) matherr;


#ifdef TCL_TEST

#include "tclInt.h"

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

#endif /* TCL_TEST */

#ifdef TCL_XT_TEST
extern void        XtToolkitInitialize _ANSI_ARGS_((void));
extern int        Tclxttest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif

/*
 *----------------------------------------------------------------------
 *
 * 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
main(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

#ifdef TCL_XT_TEST
    XtToolkitInitialize();
#endif

#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
#ifdef TCL_XT_TEST
     if (Tclxttest_Init(interp) == TCL_ERROR) {
     return TCL_ERROR;
     }
#endif
    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_GLOBAL_ONLY);
    return TCL_OK;
}