shithub: minivmac

ref: 649e0914486b43f31c89f8d17efc16d9df120198
dir: /setup/CMDARGT1.i/

/*
	CMDARGT1.i
	Copyright (C) 2009 Paul C. Pratt

	You can redistribute this file and/or modify it under the terms
	of version 2 of the GNU General Public License as published by
	the Free Software Foundation.  You should have received a copy
	of the license along with this file; see the file COPYING.

	This file is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	license for more details.
*/

/*
	CoMmandD ARGument Tool part 1

	allows code used with CMDARGW1 to also be
	used to make an MPW tool.
*/


LOCALVAR int The_argc;
LOCALVAR int The_argi;
typedef char **The_argvt;
LOCALVAR The_argvt The_argv;
LOCALVAR char *Cur_args;
LOCALVAR blnr The_arg_end;

GLOBALFUNC tMyErr AdvanceTheArg(void)
{
	++The_argi;
	if (The_argi < The_argc) {
		Cur_args = The_argv[The_argi];
	} else {
		The_arg_end = trueblnr;
	}

	return kMyErr_noErr;
}

GLOBALFUNC blnr CurArgIsCStr_v2(char *s)
{
	/* warning : assumes (! The_arg_end) */
	return CStrEq(Cur_args, s);
}

GLOBALFUNC tMyErr CurArgIsCStrAdvance_v2(char *s)
{
	tMyErr err;

	/* warning : assumes (! The_arg_end) */
	if (! CurArgIsCStr_v2(s)) {
		err = kMyErrNoMatch;
	} else {
		err = AdvanceTheArg();
	}

	return err;
}

GLOBALPROC GetCurArgAsCStr(char *s, uimr MaxN)
{
	/* warning : assumes (! The_arg_end) */
	if (CStrLength(Cur_args) > MaxN) {
		s[0] = 0;
	} else {
		CStrCopy(s, Cur_args);
	}
}

GLOBALPROC GetCurArgAsPStr(ps3p s)
{
	/* warning : assumes (! The_arg_end) */
	PStrFromCStr(s, Cur_args);
}

GLOBALPROC BeginParseCommandLineArguments(int argc, The_argvt argv)
{
	The_argi = 0;
	The_argc = argc;
	The_argv = argv;
	The_arg_end = falseblnr;
	(void) AdvanceTheArg();
}

GLOBALFUNC tMyErr ReportParseFailure(char *s)
{
	fprintf(stderr, "%s\n", s);

	return kMyErrReported;
}

GLOBALFUNC tMyErr ReportParseFailPStr(ps3p s)
{
	char t[256];

	CStrFromPStr(s, t);
	return ReportParseFailure(t);
}