/*
* 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.
*
* RCS: @(#) $Id: tclAppInit.c,v 1.4 1999/02/03 02:58:26 stanton Exp $
*/
#include "tcl.h"
#include <windows.h>
#include <locale.h>
#ifdef TCL_TEST
extern int Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
extern int Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif /* TCL_TEST */
static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
/*
*----------------------------------------------------------------------
*
* 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 *p;
char buffer[MAX_PATH];
/*
* Set up the default locale to be standard "C" locale so parsing
* is performed correctly.
*/
setlocale(LC_ALL, "C");
setargv(&argc, &argv);
/*
* Replace argv[0] with full pathname of executable, and forward
* slashes substituted for backslashes.
*/
GetModuleFileName(NULL, buffer, sizeof(buffer));
argv[0] = buffer;
for (p = buffer; *p != '\0'; p++) {
if (*p == '\\') {
*p = '/';
}
}
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);
if (TclObjTest_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
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", TCL_GLOBAL_ONLY);
return TCL_OK;
}
/*
*-------------------------------------------------------------------------
*
* setargv --
*
* Parse the Windows command line string into argc/argv. Done here
* because we don't trust the builtin argument parser in crt0.
* Windows applications are responsible for breaking their command
* line into arguments.
*
* 2N backslashes + quote -> N backslashes + begin quoted string
* 2N + 1 backslashes + quote -> literal
* N backslashes + non-quote -> literal
* quote + quote in a quoted string -> single quote
* quote + quote not in quoted string -> empty string
* quote -> begin quoted string
*
* Results:
* Fills argcPtr with the number of arguments and argvPtr with the
* array of arguments.
*
* Side effects:
* Memory allocated.
*
*--------------------------------------------------------------------------
*/
static void
setargv(argcPtr, argvPtr)
int *argcPtr; /* Filled with number of argument strings. */
char ***argvPtr; /* Filled with argument strings (malloc'd). */
{
char *cmdLine, *p, *arg, *argSpace;
char **argv;
int argc, size, inquote, copy, slashes;
cmdLine = GetCommandLine();
/*
* Precompute an overly pessimistic guess at the number of arguments
* in the command line by counting non-space spans.
*/
size = 2;
for (p = cmdLine; *p != '\0'; p++) {
if (isspace(*p)) {
size++;
while (isspace(*p)) {
p++;
}
if (*p == '\0') {
break;
}
}
}
argSpace = (char *) ckalloc((unsigned) (size * sizeof(char *)
+ strlen(cmdLine) + 1));
argv = (char **) argSpace;
argSpace += size * sizeof(char *);
size--;
p = cmdLine;
for (argc = 0; argc < size; argc++) {
argv[argc] = arg = argSpace;
while (isspace(*p)) {
p++;
}
if (*p == '\0') {
break;
}
inquote = 0;
slashes = 0;
while (1) {
copy = 1;
while (*p == '\\') {
slashes++;
p++;
}
if (*p == '"') {
if ((slashes & 1) == 0) {
copy = 0;
if ((inquote) && (p[1] == '"')) {
p++;
copy = 1;
} else {
inquote = !inquote;
}
}
slashes >>= 1;
}
while (slashes) {
*arg = '\\';
arg++;
slashes--;
}
if ((*p == '\0') || (!inquote && isspace(*p))) {
break;
}
if (copy != 0) {
*arg = *p;
arg++;
}
p++;
}
*arg = '\0';
argSpace = arg + 1;
}
argv[argc] = NULL;
*argcPtr = argc;
*argvPtr = argv;
}