/* argmatch.c -- find a match for a string in an array
- Copyright (C) 1990, 1998, 1999, 2001, 2002 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ Copyright (C) 1990, 1998-1999, 2001-2007, 2009-2014 Free Software
+ Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by David MacKenzie <djm@ai.mit.edu>
Modified by Akim Demaille <demaille@inf.enst.fr> */
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
/* Specification. */
#include "argmatch.h"
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "error.h"
#include "quotearg.h"
#include "quote.h"
-#include "unlocked-io.h"
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
/* When reporting an invalid argument, show nonprinting characters
by using the quoting style ARGMATCH_QUOTING_STYLE. Do not use
/* Non failing version of argmatch call this function after failing. */
#ifndef ARGMATCH_DIE
-# define ARGMATCH_DIE exit (EXIT_FAILURE)
+# include "exitfail.h"
+# define ARGMATCH_DIE exit (exit_failure)
#endif
#ifdef ARGMATCH_DIE_DECL
\f
/* If ARG is an unambiguous match for an element of the
- null-terminated array ARGLIST, return the index in ARGLIST
+ NULL-terminated array ARGLIST, return the index in ARGLIST
of the matched element, else -1 if it does not match any element
or -2 if it is ambiguous (is a prefix of more than one element).
synonyms, i.e., for
"yes", "yop" -> 0
"no", "nope" -> 1
- "y" is a valid argument, for `0', and "n" for `1'. */
+ "y" is a valid argument, for 0, and "n" for 1. */
-int
+ptrdiff_t
argmatch (const char *arg, const char *const *arglist,
- const char *vallist, size_t valsize)
+ const char *vallist, size_t valsize)
{
- int i; /* Temporary index in ARGLIST. */
- size_t arglen; /* Length of ARG. */
- int matchind = -1; /* Index of first nonexact match. */
- int ambiguous = 0; /* If nonzero, multiple nonexact match(es). */
+ size_t i; /* Temporary index in ARGLIST. */
+ size_t arglen; /* Length of ARG. */
+ ptrdiff_t matchind = -1; /* Index of first nonexact match. */
+ bool ambiguous = false; /* If true, multiple nonexact match(es). */
arglen = strlen (arg);
for (i = 0; arglist[i]; i++)
{
if (!strncmp (arglist[i], arg, arglen))
- {
- if (strlen (arglist[i]) == arglen)
- /* Exact match found. */
- return i;
- else if (matchind == -1)
- /* First nonexact match found. */
- matchind = i;
- else
- {
- /* Second nonexact match found. */
- if (vallist == NULL
- || memcmp (vallist + valsize * matchind,
- vallist + valsize * i, valsize))
- {
- /* There is a real ambiguity, or we could not
- disambiguate. */
- ambiguous = 1;
- }
- }
- }
+ {
+ if (strlen (arglist[i]) == arglen)
+ /* Exact match found. */
+ return i;
+ else if (matchind == -1)
+ /* First nonexact match found. */
+ matchind = i;
+ else
+ {
+ /* Second nonexact match found. */
+ if (vallist == NULL
+ || memcmp (vallist + valsize * matchind,
+ vallist + valsize * i, valsize))
+ {
+ /* There is a real ambiguity, or we could not
+ disambiguate. */
+ ambiguous = true;
+ }
+ }
+ }
}
if (ambiguous)
return -2;
PROBLEM is the return value from argmatch. */
void
-argmatch_invalid (const char *context, const char *value, int problem)
+argmatch_invalid (const char *context, const char *value, ptrdiff_t problem)
{
char const *format = (problem == -1
- ? _("invalid argument %s for %s")
- : _("ambiguous argument %s for %s"));
+ ? _("invalid argument %s for %s")
+ : _("ambiguous argument %s for %s"));
error (0, 0, format, quotearg_n_style (0, ARGMATCH_QUOTING_STYLE, value),
- quote_n (1, context));
+ quote_n (1, context));
}
/* List the valid arguments for argmatch.
VALSIZE is the size of the elements of VALLIST */
void
argmatch_valid (const char *const *arglist,
- const char *vallist, size_t valsize)
+ const char *vallist, size_t valsize)
{
- int i;
+ size_t i;
const char *last_val = NULL;
/* We try to put synonyms on the same line. The assumption is that
synonyms follow each other */
- fprintf (stderr, _("Valid arguments are:"));
+ fputs (_("Valid arguments are:"), stderr);
for (i = 0; arglist[i]; i++)
if ((i == 0)
- || memcmp (last_val, vallist + valsize * i, valsize))
+ || memcmp (last_val, vallist + valsize * i, valsize))
{
- fprintf (stderr, "\n - `%s'", arglist[i]);
- last_val = vallist + valsize * i;
+ fprintf (stderr, "\n - %s", quote (arglist[i]));
+ last_val = vallist + valsize * i;
}
else
{
- fprintf (stderr, ", `%s'", arglist[i]);
+ fprintf (stderr, ", %s", quote (arglist[i]));
}
putc ('\n', stderr);
}
"--version-control", or "$VERSION_CONTROL" etc.). Upon failure,
calls the (supposed never to return) function EXIT_FN. */
-int
+ptrdiff_t
__xargmatch_internal (const char *context,
- const char *arg, const char *const *arglist,
- const char *vallist, size_t valsize,
- argmatch_exit_fn exit_fn)
+ const char *arg, const char *const *arglist,
+ const char *vallist, size_t valsize,
+ argmatch_exit_fn exit_fn)
{
- int res = argmatch (arg, arglist, vallist, valsize);
+ ptrdiff_t res = argmatch (arg, arglist, vallist, valsize);
if (res >= 0)
/* Success. */
return res;
return the first corresponding argument in ARGLIST */
const char *
argmatch_to_argument (const char *value,
- const char *const *arglist,
- const char *vallist, size_t valsize)
+ const char *const *arglist,
+ const char *vallist, size_t valsize)
{
- int i;
+ size_t i;
for (i = 0; arglist[i]; i++)
if (!memcmp (value, vallist + valsize * i, valsize))
* Based on "getversion.c" by David MacKenzie <djm@gnu.ai.mit.edu>
*/
char *program_name;
-extern const char *getenv ();
/* When to make backup files. */
enum backup_type
{
/* Never make backups. */
- none,
+ no_backups,
/* Make simple backups of every file. */
- simple,
+ simple_backups,
/* Make numbered backups of files that already have numbered backups,
and simple backups of the others. */
- numbered_existing,
+ numbered_existing_backups,
/* Make numbered backups of every file. */
- numbered
+ numbered_backups
};
/* Two tables describing arguments (keys) and their corresponding
static const enum backup_type backup_vals[] =
{
- none, none, none,
- simple, simple,
- numbered_existing, numbered_existing,
- numbered, numbered
+ no_backups, no_backups, no_backups,
+ simple_backups, simple_backups,
+ numbered_existing_backups, numbered_existing_backups,
+ numbered_backups, numbered_backups
};
int
main (int argc, const char *const *argv)
{
const char *cp;
- enum backup_type backup_type = none;
+ enum backup_type backup_type = no_backups;
program_name = (char *) argv[0];
if ((cp = getenv ("VERSION_CONTROL")))
backup_type = XARGMATCH ("$VERSION_CONTROL", cp,
- backup_args, backup_vals);
+ backup_args, backup_vals);
if (argc == 2)
backup_type = XARGMATCH (program_name, argv[1],
- backup_args, backup_vals);
+ backup_args, backup_vals);
- printf ("The version control is `%s'\n",
- ARGMATCH_TO_ARGUMENT (backup_type, backup_args, backup_vals));
+ printf ("The version control is '%s'\n",
+ ARGMATCH_TO_ARGUMENT (backup_type, backup_args, backup_vals));
return 0;
}
projects / gnulib.git / blobdiff