/******************************************************************************

    MODULE
	Suffix.c

    DESCRIPTION
	Get one string on Commandline
	and write its Suffix to StdOut

    NOTES
	Kickstart 2.0+ required
	compiles w/ SAS/C v6.51

    BUGS
	none known

    TODO

    EXAMPLES
	> suffix ram:t/jabba.bak
	bak

    SEE ALSO
	FilePart, PathPart

    INDEX

    HISTORY
	01-08-93 b_noll created
	20-02-95 b_noll restructured source
	21-02-95 b_noll added version/format-prefix/offset
	20-03-95 b_noll added args diagnostics

    AUTHOR
	Bernd Noll, Brunnenstrasse 55, D-67661 Kaiserslautern
	b_noll@informatik.uni-kl.de

******************************************************************************/

/**************************************
	    Includes
**************************************/

#ifndef   EXEC_LIBRARIES_H
# include <exec/libraries.h>
#endif /* EXEC_LIBRARIES_H */

#ifndef   CLIB_EXEC_PROTOS_H
# include <clib/exec_protos.h>
#endif /* CLIB_EXEC_PROTOS_H */

#ifndef   DOS_DOS_H
# include <dos/dos.h>
#endif /* DOS_DOS_H */

#ifndef   CLIB_DOS_PROTOS_H
# include <clib/dos_protos.h>
#endif /* CLIB_DOS_PROTOS_H */

#include <proto/dos.h>
#include <proto/exec.h>

/**************************************
	 Defines & Structures
**************************************/

#ifndef ABSEXECBASE
#define ABSEXECBASE ((struct ExecBase **)4L)
#endif

struct _arg {
/* ******************** USER FORMAT ******************** */
#define FORMAT "FILE/A"

    STRPTR file;

/* ******************** USER FORMAT ******************** */
}; /* struct _argv */

#define MAXPATHLEN 256
#define MAXLINELEN 256

#define VERSIONPREFIX	"\0$VER: "
#define VERSIONOFFSET	0
#define FORMATPREFIX	"\0$ARG: "
#define FORMATOFFSET	7

/**************************************
	    Implementation
**************************************/

long _main (void)
{
    const char* version = VERSIONPREFIX "Suffix 1.2 " __AMIGADATE__ + VERSIONOFFSET;
    long retval = RETURN_FAIL;
    struct ExecBase*SysBase = *ABSEXECBASE;
    struct Library* DOSBase;

    if (DOSBase = OpenLibrary (DOSNAME, 37)) {
	struct _arg argv = { 0 };
	APTR   args;
	retval	 = RETURN_ERROR;
	if (args = (void*)ReadArgs(FORMATPREFIX FORMAT + FORMATOFFSET, (LONG*)&argv, NULL)) {
/* ******************** USER BODY ******************** */

	    STRPTR p;
	    p = argv.file;
	    retval = RETURN_WARN;
	    if (p && *p) {
		while (*p) ++p;
		--p;
		while ((p != argv.file) && (*p != '.') && (*p != ':') && (*p != '/')) --p;
		if (*p == '.') {
		    if (PutStr (p+1) == 0) retval = RETURN_OK;
		} /* if */
	    } /* if */
	    PutStr("\n");

/* ******************** USER BODY ******************** */
	    FreeArgs (args);
	} /* if */

	if (retval > RETURN_WARN)
	    PrintFault(IoErr(), "Suffix");

	CloseLibrary (DOSBase);
    } /* if */
    return (retval);
} /* _main */

/******************************************************************************
*****  END Suffix.c
******************************************************************************/