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/*
* tclAppInit.c --
*
* Provides a default version of the main program and Tcl_AppInit
* procedure for tclsh and other Tcl-based applications (without Tk).
*
* Copyright (c) 1993 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 1998-1999 Scriptics Corporation.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tcl.h"
#if TCL_MAJOR_VERSION < 9
# if defined(USE_TCL_STUBS)
# error "Don't build with USE_TCL_STUBS!"
# endif
# define Tcl_LibraryInitProc Tcl_PackageInitProc
# define Tcl_StaticLibrary Tcl_StaticPackage
#endif
#ifdef TCL_TEST
#ifdef __cplusplus
extern "C" {
#endif
extern Tcl_LibraryInitProc Tcltest_Init;
extern Tcl_LibraryInitProc Tcltest_SafeInit;
#ifdef __cplusplus
}
#endif
#endif /* TCL_TEST */
#ifdef TCL_XT_TEST
extern void XtToolkitInitialize(void);
extern Tcl_LibraryInitProc Tclxttest_Init;
#endif /* TCL_XT_TEST */
/*
* The following allows changing of the script file read at startup.
*/
#ifndef TCL_RC_FILE
#ifdef DJGPP
#define TCL_RC_FILE "~/tclshrc.tcl"
#else
#define TCL_RC_FILE "~/.tclshrc"
#endif
#endif
/*
* 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 does not exist.
*/
#ifndef TCL_LOCAL_APPINIT
#define TCL_LOCAL_APPINIT Tcl_AppInit
#endif
#ifndef MODULE_SCOPE
# define MODULE_SCOPE extern
#endif
MODULE_SCOPE int TCL_LOCAL_APPINIT(Tcl_Interp *);
MODULE_SCOPE int main(int, char **);
/*
* 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
MODULE_SCOPE int TCL_LOCAL_MAIN_HOOK(int *argc, char ***argv);
#endif
/*
* TclSetRcFilePath --
*
* Sets the path of the Tcl startup file (usually ".tclshrc"). Will
* do tilde expansion and normalization of the passed path and set
* the tclRcFilePath variable to the result
*
* Results:
* A Tcl result code.
*
* Side effects:
* Sets the tclRcFilePath variable.
*
* TODO - this function is duplicated in the Windows version of tclAppInit.c.
* Consider adding it to Tcl library and callable via the stubs table.
*/
static int
TclSetRcFilePath(Tcl_Interp *interp, const char *path)
{
Tcl_DString ds;
if (Tcl_FSTildeExpand(interp, path, &ds) != TCL_OK) {
return TCL_ERROR;
}
Tcl_Obj *rcPathObj = Tcl_DStringToObj(&ds);
/* Reminder: don't worry about rcPathObj ref count on success/failure */
if (Tcl_SetVar2Ex(interp, "tcl_rcFileName", NULL, rcPathObj,
TCL_GLOBAL_ONLY) == NULL) {
return TCL_ERROR;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* main --
*
* This is the main program for the application.
*
* Results:
* None: Tcl_Main never returns here, so this procedure never returns
* either.
*
* Side effects:
* Just about anything, since from here we call arbitrary Tcl code.
*
*----------------------------------------------------------------------
*/
int
main(
int argc, /* Number of command-line arguments. */
char *argv[]) /* Values of command-line arguments. */
{
#ifdef TCL_XT_TEST
XtToolkitInitialize();
#endif
#ifdef TCL_LOCAL_MAIN_HOOK
TCL_LOCAL_MAIN_HOOK(&argc, &argv);
#elif TCL_MAJOR_VERSION > 8 && (!defined(_WIN32) || defined(UNICODE))
/* New in Tcl 9.0. This doesn't work on Windows without UNICODE */
TclZipfs_AppHook(&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(
Tcl_Interp *interp) /* Interpreter for application. */
{
if (Tcl_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
#ifdef TCL_XT_TEST
if (Tclxttest_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
#endif
#ifdef TCL_TEST
if (Tcltest_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
Tcl_StaticLibrary(interp, "Tcltest", Tcltest_Init, Tcltest_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. (Dynamically-loadable packages
* should have the same entry-point name.)
*/
/*
* Call Tcl_CreateObjCommand 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.
* In keeping with the historical behavior, errors setting the name
* for example, if the home directory cannot be found, are ignored.
*/
(void) TclSetRcFilePath(interp, TCL_RC_FILE);
Tcl_ResetResult(interp);
return TCL_OK;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
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