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112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* argmatch.h -- definitions and prototypes for argmatch.c
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Copyright (C) 1990, 1998, 1999 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Written by David MacKenzie <djm@ai.mit.edu>
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Modified by Akim Demaille <demaille@inf.enst.fr> */
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#ifndef ARGMATCH_H_
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# define ARGMATCH_H_ 1
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# if HAVE_CONFIG_H
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# include <config.h>
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# endif
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# include <sys/types.h>
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# ifndef PARAMS
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# if PROTOTYPES || (defined (__STDC__) && __STDC__)
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# define PARAMS(args) args
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# else
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# define PARAMS(args) ()
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# endif /* GCC. */
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# endif /* Not PARAMS. */
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/* Return the index of the element of ARGLIST (NULL terminated) that
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matches with ARG. If VALLIST is not NULL, then use it to resolve
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false ambiguities (i.e., different matches of ARG but corresponding
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to the same values in VALLIST). */
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int argmatch
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PARAMS ((const char *arg, const char *const *arglist,
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const char *vallist, size_t valsize));
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int argcasematch
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PARAMS ((const char *arg, const char *const *arglist,
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const char *vallist, size_t valsize));
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# define ARGMATCH(Arg, Arglist, Vallist) \
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argmatch ((Arg), (Arglist), (const char *) (Vallist), sizeof (*(Vallist)))
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# define ARGCASEMATCH(Arg, Arglist, Vallist) \
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argcasematch ((Arg), (Arglist), (const char *) (Vallist), sizeof (*(Vallist)))
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/* Report on stderr why argmatch failed. Report correct values. */
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void argmatch_invalid
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PARAMS ((const char *kind, const char *value, int problem));
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/* Left for compatibility with the old name invalid_arg */
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# define invalid_arg(Kind, Value, Problem) \
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argmatch_invalid ((Kind), (Value), (Problem))
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/* Report on stderr the list of possible arguments. */
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void argmatch_valid
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PARAMS ((const char *const *arglist,
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const char *vallist, size_t valsize));
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# define ARGMATCH_VALID(Arglist, Vallist) \
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argmatch_valid (Arglist, (const char *) Vallist, sizeof (*Vallist))
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/* Set *Result_ptr to the value in Vallist corresponding to the Arg
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in Arglist. If Arg doesn't match any string in Arglist, give a
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diagnostic and (presumably) exit via the Die_stmt, leaving *Result_ptr
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unmodified. */
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# define XARGMATCH(Result_ptr, Kind, Arg, Arglist, Vallist, Die_stmt) \
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do \
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{ \
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int _i = ARGMATCH (Arg, Arglist, Vallist); \
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if (_i >= 0) \
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*(Result_ptr) = (Vallist) [_i]; \
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else \
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{ \
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argmatch_invalid ((Kind), (Arg), _i); \
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ARGMATCH_VALID (Arglist, Vallist); \
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Die_stmt; \
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} \
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} \
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while (0)
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/* Convert a value into a corresponding argument. */
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const char *argmatch_to_argument
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PARAMS ((char const *value, const char *const *arglist,
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const char *vallist, size_t valsize));
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# define ARGMATCH_TO_ARGUMENT(Value, Arglist, Vallist) \
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argmatch_to_argument ((char const *) &(Value), (Arglist), \
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(const char *) (Vallist), sizeof (*(Vallist)))
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#endif /* ARGMATCH_H_ */
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