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Diffstat (limited to 'tcl8.6/unix/tclAppInit.c')
| -rw-r--r-- | tcl8.6/unix/tclAppInit.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/tcl8.6/unix/tclAppInit.c b/tcl8.6/unix/tclAppInit.c new file mode 100644 index 0000000..9bbc88b --- /dev/null +++ b/tcl8.6/unix/tclAppInit.c @@ -0,0 +1,169 @@ +/* + * tclAppInit.c -- + * + * Provides a default version of the main program and Tcl_AppInit + * procedure for tclsh and other Tcl-based applications (without Tk). + * + * 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. + */ + +#undef BUILD_tcl +#undef STATIC_BUILD +#include "tcl.h" + +#ifdef TCL_TEST +extern Tcl_PackageInitProc Tcltest_Init; +extern Tcl_PackageInitProc Tcltest_SafeInit; +#endif /* TCL_TEST */ + +#ifdef TCL_XT_TEST +extern void XtToolkitInitialize(void); +extern Tcl_PackageInitProc Tclxttest_Init; +#endif /* TCL_XT_TEST */ + +/* + * 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 *); +MODULE_SCOPE int main(int, char **); + +/* + * 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, char ***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. + * + *---------------------------------------------------------------------- + */ + +int +main( + int argc, /* Number of command-line arguments. */ + char *argv[]) /* Values of command-line arguments. */ +{ +#ifdef TCL_XT_TEST + XtToolkitInitialize(); +#endif + +#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; + } + +#ifdef TCL_XT_TEST + if (Tclxttest_Init(interp) == TCL_ERROR) { + return TCL_ERROR; + } +#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. + */ + +#ifdef DJGPP + (Tcl_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL, + Tcl_NewStringObj("~/tclsh.rc", -1), TCL_GLOBAL_ONLY); +#else + (Tcl_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL, + Tcl_NewStringObj("~/.tclshrc", -1), TCL_GLOBAL_ONLY); +#endif + + return TCL_OK; +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |