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tclAppInit.cc

/* 
 * tkAppInit.c --
 *
 *    Provides a default version of the Tcl_AppInit procedure for
 *    use in wish and similar Tk-based applications.
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * SCCS: @(#) tkAppInit.c 1.21 96/03/26 16:47:07
 */

#ifdef notdef
#include "tk.h"
#endif
#include "tclcl.h"
extern "C" {
#include <otcl.h>
}

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

extern "C"  {
extern int matherr();
int *tclDummyMathPtr = (int *) matherr;
}

extern "C" {
/* override the playform init routine in the tk library */
int
TkPlatformInit(Tcl_Interp *interp)
{
      extern void TkCreateXEventSource(void);
      Tcl_SetVar(interp, "tk_library", ".", TCL_GLOBAL_ONLY);
      return (TCL_OK);
}
}

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

int
main(int argc, char** argv)
{
    Tcl_Main(argc, argv, Tcl_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 interp->result if an error occurs.
 *
 * Side effects:
 *    Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_AppInit(Tcl_Interp *interp)
{
    if (Tcl_Init(interp) == TCL_ERROR) {
      return TCL_ERROR;
    }

    /*
     * 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.
     */

    if (Otcl_Init(interp) == TCL_ERROR)
          return TCL_ERROR;
    Tcl::init(interp, "xtclsh");
#ifdef notdef
    EmbeddedTcl::load_Tk();
    EmbeddedTcl::define_rate_variable();
    EmbeddedTcl::init();
#endif

    /*
     * 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;
}

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