diff options
Diffstat (limited to 'win/tclAppInit.c')
| -rw-r--r-- | win/tclAppInit.c | 403 |
1 files changed, 208 insertions, 195 deletions
diff --git a/win/tclAppInit.c b/win/tclAppInit.c index 48180fb..a6c1a67 100644 --- a/win/tclAppInit.c +++ b/win/tclAppInit.c @@ -2,39 +2,65 @@ * 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. + * 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) 1996-1997 by Sun Microsystems, Inc. - * Copyright (c) 1998-1999 by Scriptics Corporation. + * 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. - * - * RCS: @(#) $Id: tclAppInit.c,v 1.18 2004/02/02 21:35:28 davygrvy Exp $ + * 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 #include <windows.h> +#undef WIN32_LEAN_AND_MEAN #include <locale.h> +#include <stdlib.h> +#include <tchar.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)); -#ifdef TCL_THREADS -extern int TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp)); -#endif +extern Tcl_PackageInitProc Tcltest_Init; +extern Tcl_PackageInitProc Tcltest_SafeInit; #endif /* TCL_TEST */ -static BOOL WINAPI sigHandler (DWORD fdwCtrlType); -static Tcl_AsyncProc asyncExit; -static void AppInitExitHandler(ClientData clientData); +#if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES +extern Tcl_PackageInitProc Registry_Init; +extern Tcl_PackageInitProc Dde_Init; +extern Tcl_PackageInitProc Dde_SafeInit; +#endif -static Tcl_AsyncHandler exitToken = NULL; -static DWORD exitErrorCode = 0; +#ifdef TCL_BROKEN_MAINARGS +int _CRT_glob = 0; +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 /* *---------------------------------------------------------------------- @@ -44,48 +70,45 @@ static DWORD exitErrorCode = 0; * This is the main program for the application. * * Results: - * None: Tcl_Main never returns here, so this procedure never - * returns either. + * None: Tcl_Main never returns here, so this procedure never returns + * either. * * Side effects: - * Whatever the application does. + * Just about anything, since from here we call arbitrary Tcl code. * *---------------------------------------------------------------------- */ +#ifdef TCL_BROKEN_MAINARGS int -main (int argc, char *argv[]) +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. */ { - /* - * 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 doesn't exist. - */ - -#ifndef TCL_LOCAL_APPINIT -#define TCL_LOCAL_APPINIT Tcl_AppInit #endif - extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp)); + TCHAR *p; /* - * 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() + * Set up the default locale to be standard "C" locale so parsing is + * performed correctly. */ -#ifdef TCL_LOCAL_MAIN_HOOK - extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv)); -#endif - - char *p; + setlocale(LC_ALL, "C"); +#ifdef TCL_BROKEN_MAINARGS /* - * Set up the default locale to be standard "C" locale so parsing - * is performed correctly. + * Get our args from the c-runtime. Ignore command line. */ - setlocale(LC_ALL, "C"); + setargv(&argc, &argv); +#endif /* * Forward slashes substituted for backslashes. @@ -102,7 +125,6 @@ main (int argc, char *argv[]) #endif Tcl_Main(argc, argv, TCL_LOCAL_APPINIT); - return 0; /* Needed only to prevent compiler warning. */ } @@ -111,13 +133,13 @@ main (int argc, char *argv[]) * * Tcl_AppInit -- * - * This procedure performs application-specific initialization. - * Most applications, especially those that incorporate additional - * packages, will have their own version of this procedure. + * 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. + * 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. @@ -126,198 +148,189 @@ main (int argc, char *argv[]) */ int -Tcl_AppInit(interp) - Tcl_Interp *interp; /* Interpreter for application. */ +Tcl_AppInit( + Tcl_Interp *interp) /* Interpreter for application. */ { - if (Tcl_Init(interp) == TCL_ERROR) { + if ((Tcl_Init)(interp) == TCL_ERROR) { return TCL_ERROR; } - /* - * Install a signal handler to the win32 console tclsh is running in. - */ - SetConsoleCtrlHandler(sigHandler, TRUE); - exitToken = Tcl_AsyncCreate(asyncExit, NULL); - - /* - * This exit handler will be used to free the - * resources allocated in this file. - */ - Tcl_CreateExitHandler(AppInitExitHandler, NULL); - -#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) { +#if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES + if (Registry_Init(interp) == TCL_ERROR) { return TCL_ERROR; } -#ifdef TCL_THREADS - if (TclThread_Init(interp) == 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 - if (Procbodytest_Init(interp) == TCL_ERROR) { + +#ifdef TCL_TEST + if (Tcltest_Init(interp) == TCL_ERROR) { return TCL_ERROR; } - Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init, - Procbodytest_SafeInit); + Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init, Tcltest_SafeInit); #endif /* TCL_TEST */ -#if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES - { - extern Tcl_PackageInitProc Registry_Init; - extern Tcl_PackageInitProc Dde_Init; - - 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, NULL); - } -#endif - /* - * Call the init procedures for included packages. Each call should - * look like this: + * 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. + * 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. + * 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. + * 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); + (Tcl_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL, + Tcl_NewStringObj("~/tclshrc.tcl", -1), TCL_GLOBAL_ONLY); return TCL_OK; } /* - *---------------------------------------------------------------------- + *------------------------------------------------------------------------- * - * AppInitExitHandler -- + * setargv -- * - * This function is called to cleanup the app init resources before - * Tcl is unloaded. + * 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. * - * Results: - * None. - * - * Side effects: - * Frees the saved argv and deletes the async exit handler. - * - *---------------------------------------------------------------------- - */ - -static void -AppInitExitHandler( - ClientData clientData) /* Not Used. */ -{ - if (exitToken != NULL) { - /* - * This should be safe to do even if we - * are in an async exit right now. - */ - Tcl_AsyncDelete(exitToken); - exitToken = NULL; - } -} - -/* - *---------------------------------------------------------------------- - * - * asyncExit -- - * - * The AsyncProc for the exitToken. + * 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: - * doesn't actually return. + * Fills argcPtr with the number of arguments and argvPtr with the array + * of arguments. * * Side effects: - * tclsh cleanly exits. + * Memory allocated. * - *---------------------------------------------------------------------- + *-------------------------------------------------------------------------- */ -int -asyncExit ( - ClientData clientData, /* Not Used. */ - Tcl_Interp *interp, /* interp in context, if any. */ - int code) /* result of last command, if any. */ +#ifdef TCL_BROKEN_MAINARGS +static void +setargv( + int *argcPtr, /* Filled with number of argument strings. */ + TCHAR ***argvPtr) /* Filled with argument strings (malloc'd). */ { - Tcl_Exit((int)exitErrorCode); + TCHAR *cmdLine, *p, *arg, *argSpace; + TCHAR **argv; + int argc, size, inquote, copy, slashes; - /* NOTREACHED */ - return code; -} - -/* - *---------------------------------------------------------------------- - * - * sigHandler -- - * - * Signal handler for the Win32 OS. Catches Ctrl+C, Ctrl+Break and - * other exits. This is needed so tclsh can do it's real clean-up - * and not an unclean crash terminate. - * - * Results: - * TRUE. - * - * Side effects: - * Effects the way the app exits from a signal. This is an - * operating system supplied thread and unsafe to call ANY - * Tcl commands except for Tcl_AsyncMark. - * - *---------------------------------------------------------------------- - */ + cmdLine = GetCommandLine(); -BOOL WINAPI -sigHandler( - DWORD fdwCtrlType) /* One of the CTRL_*_EVENT constants. */ -{ - HANDLE hStdIn; + /* + * Precompute an overly pessimistic guess at the number of arguments in + * the command line by counting non-space spans. + */ - if (!exitToken) { - /* Async token must have been destroyed, punt gracefully. */ - return FALSE; + 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; + } + } } - /* - * If Tcl is currently executing some bytecode or in the eventloop, - * this will cause Tcl to enter asyncExit at the next command - * boundry. - */ - exitErrorCode = fdwCtrlType; - Tcl_AsyncMark(exitToken); + /* Make sure we don't call ckalloc through the (not yet initialized) stub table */ + #undef Tcl_Alloc + #undef Tcl_DbCkalloc + + argSpace = 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; + } - /* - * This will cause Tcl_Gets in Tcl_Main() to drop-out with an <EOF> - * should it be blocked on input and our Tcl_AsyncMark didn't grab - * the attention of the interpreter. - */ - hStdIn = GetStdHandle(STD_INPUT_HANDLE); - if (hStdIn) { - CloseHandle(hStdIn); + 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; - /* indicate to the OS not to call the default terminator. */ - return TRUE; + *argcPtr = argc; + *argvPtr = argv; } +#endif /* TCL_BROKEN_MAINARGS */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |