diff options
Diffstat (limited to 'tcl8.6/win/tclAppInit.c')
| -rw-r--r-- | tcl8.6/win/tclAppInit.c | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/tcl8.6/win/tclAppInit.c b/tcl8.6/win/tclAppInit.c new file mode 100644 index 0000000..2236da3 --- /dev/null +++ b/tcl8.6/win/tclAppInit.c @@ -0,0 +1,340 @@ +/* + * 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) && 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) && 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 = 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: + */ |