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author | rjohnson <rjohnson@noemail.net> | 1998-03-26 14:56:54 (GMT) |
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committer | rjohnson <rjohnson@noemail.net> | 1998-03-26 14:56:54 (GMT) |
commit | f3d590299d8632bc7d324901d27250ed07a6f074 (patch) | |
tree | c168cc164a71f320db9dcdfe7518ba7bd0d2c8d9 /win/tclAppInit.c | |
parent | 26a76b6c669bbb7629454ffa56a7f3f501a86dae (diff) | |
download | tcl-f3d590299d8632bc7d324901d27250ed07a6f074.zip tcl-f3d590299d8632bc7d324901d27250ed07a6f074.tar.gz tcl-f3d590299d8632bc7d324901d27250ed07a6f074.tar.bz2 |
Initial revision
FossilOrigin-Name: f86c34e38d2a946e0ed196001fd756c57f90791a
Diffstat (limited to 'win/tclAppInit.c')
-rw-r--r-- | win/tclAppInit.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/win/tclAppInit.c b/win/tclAppInit.c new file mode 100644 index 0000000..10a77cb --- /dev/null +++ b/win/tclAppInit.c @@ -0,0 +1,259 @@ +/* + * 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 1.12 97/04/30 11:04:50 + */ + +#include "tcl.h" +#include <windows.h> +#include <locale.h> + +#ifdef TCL_TEST +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; + } +#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; +} |