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OpenFPGA/libs/EXTERNAL/tcl8.6.12/win/tclAppInit.c

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adding Tcl interface to vpr
2022-06-07 11:15:20 -05:00
/*
* tclAppInit.c --
*
* Provides a default version of the main program and Tcl_AppInit
* procedure for tclsh and other Tcl-based applications (without Tk).
* Note that this program must be built in Win32 console mode to work
* properly.
*
* 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"
#define WIN32_LEAN_AND_MEAN
#define STRICT /* See MSDN Article Q83456 */
#include <windows.h>
#undef STRICT
#undef WIN32_LEAN_AND_MEAN
#include <locale.h>
#include <stdlib.h>
#include <tchar.h>
#ifdef TCL_TEST
extern Tcl_PackageInitProc Tcltest_Init;
extern Tcl_PackageInitProc Tcltest_SafeInit;
#endif /* TCL_TEST */
#if defined(STATIC_BUILD) && defined(TCL_USE_STATIC_PACKAGES) && TCL_USE_STATIC_PACKAGES
extern Tcl_PackageInitProc Registry_Init;
extern Tcl_PackageInitProc Dde_Init;
extern Tcl_PackageInitProc Dde_SafeInit;
#endif
#if defined(__GNUC__) || defined(TCL_BROKEN_MAINARGS)
int _CRT_glob = 0;
#endif /* __GNUC__ || TCL_BROKEN_MAINARGS */
#ifdef TCL_BROKEN_MAINARGS
static void setargv(int *argcPtr, TCHAR ***argvPtr);
#endif /* TCL_BROKEN_MAINARGS */
/*
* 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 *);
/*
* 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, TCHAR ***argv);
#endif
/*
*----------------------------------------------------------------------
*
* 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.
*
*----------------------------------------------------------------------
*/
#ifdef TCL_BROKEN_MAINARGS
int
main(
int argc, /* Number of command-line arguments. */
char *dummy[]) /* Not used. */
{
TCHAR **argv;
#else
int
_tmain(
int argc, /* Number of command-line arguments. */
TCHAR *argv[]) /* Values of command-line arguments. */
{
#endif
TCHAR *p;
/*
* Set up the default locale to be standard "C" locale so parsing is
* performed correctly.
*/
setlocale(LC_ALL, "C");
#ifdef TCL_BROKEN_MAINARGS
/*
* Get our args from the c-runtime. Ignore command line.
*/
setargv(&argc, &argv);
#endif
/*
* Forward slashes substituted for backslashes.
*/
for (p = argv[0]; *p != '\0'; p++) {
if (*p == '\\') {
*p = '/';
}
}
#ifdef TCL_LOCAL_MAIN_HOOK
TCL_LOCAL_MAIN_HOOK(&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;
}
#if defined(STATIC_BUILD) && defined(TCL_USE_STATIC_PACKAGES) && TCL_USE_STATIC_PACKAGES
if (Registry_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
Tcl_StaticPackage(interp, "Registry", Registry_Init, NULL);
if (Dde_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
Tcl_StaticPackage(interp, "Dde", Dde_Init, Dde_SafeInit);
#endif
#ifdef TCL_TEST
if (Tcltest_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
Tcl_StaticPackage(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_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_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL,
Tcl_NewStringObj("~/tclshrc.tcl", -1), 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.
*
*--------------------------------------------------------------------------
*/
#ifdef TCL_BROKEN_MAINARGS
static void
setargv(
int *argcPtr, /* Filled with number of argument strings. */
TCHAR ***argvPtr) /* Filled with argument strings (malloc'd). */
{
TCHAR *cmdLine, *p, *arg, *argSpace;
TCHAR **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 ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
size++;
while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
p++;
}
if (*p == '\0') {
break;
}
}
}
/* Make sure we don't call ckalloc through the (not yet initialized) stub table */
#undef Tcl_Alloc
#undef Tcl_DbCkalloc
argSpace = (TCHAR *)ckalloc(size * sizeof(char *)
+ (_tcslen(cmdLine) * sizeof(TCHAR)) + sizeof(TCHAR));
argv = (TCHAR **) argSpace;
argSpace += size * (sizeof(char *)/sizeof(TCHAR));
size--;
p = cmdLine;
for (argc = 0; argc < size; argc++) {
argv[argc] = arg = argSpace;
while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
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 &&
((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */
break;
}
if (copy != 0) {
*arg = *p;
arg++;
}
p++;
}
*arg = '\0';
argSpace = arg + 1;
}
argv[argc] = NULL;
*argcPtr = argc;
*argvPtr = argv;
}
#endif /* TCL_BROKEN_MAINARGS */
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/