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tcl7.0b2
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tclAppInit.c
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C/C++ Source or Header
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1993-07-01
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3KB
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92 lines
/*
* tclAppInit.c --
*
* Provides a default version of the Tcl_AppInit procedure.
*
* Copyright (c) 1993 The Regents of the University of California.
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
* CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#ifndef lint
static char rcsid[] = "$Header: /user6/ouster/tcl/RCS/tclAppInit.c,v 1.3 93/07/01 15:16:08 ouster Exp $ SPRITE (Berkeley)";
#endif /* not lint */
#include "tcl.h"
/*
* The variable below holds a startup script to be executed at the
* beginning of the application.
*/
char initCmd[] =
"if [file exists [info library]/init.tcl] {\n\
source [info library]/init.tcl\n\
} else {\n\
set msg \"can't find [info library]/init.tcl; perhaps you need to\\n\"\n\
append msg \"install Tcl or set your TCL_LIBRARY environment \"\n\
append msg \"variable?\"\n\
error $msg\n\
}";
/*
* The following variable is a special hack that allows applications
* to be linked using the procedure "main" from the Tcl library. The
* variable generates a reference to "main", which causes main to
* be brought in from the library (and all of Tcl with it).
*/
extern int main();
int *tclDummyMainPtr = (int *) main;
/*
*----------------------------------------------------------------------
*
* 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(interp)
Tcl_Interp *interp; /* Interpreter for application. */
{
/*
* Calls to init procedures for various included packages should
* appear below, if there are any included packages:
*/
/*
* Execute a start-up script.
*/
return Tcl_Eval(interp, initCmd);
}