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Top Forums Shell Programming and Scripting Adding another option to getopt Post 302821035 by Alabama on Friday 14th of June 2013 01:33:54 AM
Old 06-14-2013
I am using Mac OS X.

Eventually I want to add all ABCD cases, but for now I am giving it just -D1 to parse.

There are no such operations, below is all the code starting from main until the while op=getopt loop. The instruct function prints instructions for the ABC cases, but not the added part for case D.
I am using the make compiler on this code together with 2 other programs, and giving the command line -D1 to the resulting file.
Code:
main(argc, argv)
	int	argc;
	char	**argv;
{
	FILE 	*fopen(), *ifp, *ofp;
	int	a=a0, d=d0;//a0 and d0 defined above
	float	b=b0, c=c0;//b0 and c0 defined above
	char	in_file[256], out_file[256];
	void instruct();
	if (argc == 1) 
		instruct();

The error message is:
Code:
invalid option -- 'D'

Thank you!
 

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Tk_Main(3)						       Tk Library Procedures							Tk_Main(3)

__________________________________________________________________________________________________________________________________________________

NAME
Tk_Main - main program for Tk-based applications SYNOPSIS
#include <tk.h> Tk_Main(argc, argv, appInitProc) ARGUMENTS
int argc (in) Number of elements in argv. char *argv[] (in) Array of strings containing command-line arguments. Tcl_AppInitProc *appInitProc (in) Address of an application-specific initialization procedure. The value for this argument is usually Tcl_AppInit. _________________________________________________________________ DESCRIPTION
Tk_Main acts as the main program for most Tk-based applications. Starting with Tk 4.0 it is not called main anymore because it is part of the Tk library and having a function main in a library (particularly a shared library) causes problems on many systems. Having main in the Tk library would also make it hard to use Tk in C++ programs, since C++ programs must have special C++ main functions. Normally each application contains a small main function that does nothing but invoke Tk_Main. Tk_Main then does all the work of creating and running a wish-like application. When it is has finished its own initialization, but before it processes commands, Tk_Main calls the procedure given by the appInitProc argument. This procedure provides a "hook" for the application to perform its own initialization, such as defining application-specific commands. The procedure must have an interface that matches the type Tcl_AppInitProc: typedef int Tcl_AppInitProc(Tcl_Interp *interp); AppInitProc is almost always a pointer to Tcl_AppInit; for more details on this procedure, see the documentation for Tcl_AppInit. KEYWORDS
application-specific initialization, command-line arguments, main program Tk 4.0 Tk_Main(3)
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