archie/tcl7.6/win/tclAppInit.c

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2024-05-27 16:40:40 +02:00
/*
* 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 by 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: @(#) tclAppInit.c 1.9 96/10/04 11:01:28
*/
#include "tcl.h"
#include <windows.h>
#include <locale.h>
#ifdef TCL_TEST
EXTERN int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif /* TCL_TEST */
/*
*----------------------------------------------------------------------
*
* 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. */
{
char *args = GetCommandLine();
char **argvlist, *p;
int size, i;
/*
* Set up the default locale to be standard "C" locale so parsing
* is performed correctly.
*/
setlocale(LC_ALL, "C");
/*
* Precompute an overly pessimistic guess at the number of arguments
* in the command line by counting non-space spans.
*/
for (size = 2, p = args; *p != '\0'; p++) {
if (isspace(*p)) {
size++;
while (isspace(*p)) {
p++;
}
if (*p == '\0') {
break;
}
}
}
argvlist = (char **) ckalloc((unsigned) (size * sizeof(char *)));
argv = argvlist;
/*
* Parse the Windows command line string. If an argument begins with a
* double quote, then spaces are considered part of the argument until the
* next double quote. The argument terminates at the second quote. Note
* that this is different from the usual Unix semantics.
*/
for (i = 0, p = args; *p != '\0'; i++) {
while (isspace(*p)) {
p++;
}
if (*p == '\0') {
break;
}
if (*p == '"') {
p++;
argv[i] = p;
while ((*p != '\0') && (*p != '"')) {
p++;
}
} else {
argv[i] = p;
while (*p != '\0' && !isspace(*p)) {
p++;
}
}
if (*p != '\0') {
*p = '\0';
p++;
}
}
argv[i] = NULL;
argc = i;
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(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);
#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;
}