/* argmatch.c -- find a match for a string in an array
- Copyright (C) 1990, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1998, 1999 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
#if HAVE_LOCALE_H
# include <locale.h>
#endif
-#if !HAVE_SETLOCALE
-# define setlocale(Category, Locale) /* empty */
-#endif
#if ENABLE_NLS
# include <libintl.h>
# define _(Text) gettext (Text)
#else
-# define bindtextdomain(Domain, Directory) /* empty */
-# define textdomain(Domain) /* empty */
# define _(Text) Text
#endif
-#ifndef EXIT_BADARG
-# define EXIT_BADARG 1
+#include "error.h"
+#include "quotearg.h"
+
+/* When reporting an invalid argument, show nonprinting characters
+ by using the quoting style ARGMATCH_QUOTING_STYLE. Do not use
+ literal_quoting_style. */
+#ifndef ARGMATCH_QUOTING_STYLE
+# define ARGMATCH_QUOTING_STYLE locale_quoting_style
#endif
-#include "quotearg.h"
+/* The following test is to work around the gross typo in
+ systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
+ is defined to 0, not 1. */
+#if !EXIT_FAILURE
+# undef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#endif
-/* When reporting a failing argument, make sure to show invisible
- characters hidden using the quoting style
- ARGMATCH_QUOTING_STYLE. literal_quoting_style is not good. */
+/* Non failing version of argmatch call this function after failing. */
+#ifndef ARGMATCH_DIE
+# define ARGMATCH_DIE exit (EXIT_FAILURE)
+#endif
-#ifndef ARGMATCH_QUOTING_STYLE
-# define ARGMATCH_QUOTING_STYLE c_quoting_style
+#ifdef ARGMATCH_DIE_DECL
+ARGMATCH_DIE_DECL;
#endif
-extern char *program_name;
+static void
+__argmatch_die (void)
+{
+ ARGMATCH_DIE;
+}
+
+/* Used by XARGMATCH and XARGCASEMATCH. See description in argmatch.h.
+ Default to __argmatch_die, but allow caller to change this at run-time. */
+argmatch_exit_fn argmatch_die = __argmatch_die;
+\f
/* If ARG is an unambiguous match for an element of the
null-terminated array ARGLIST, return the index in ARGLIST
of the matched element, else -1 if it does not match any element
}
/* Error reporting for argmatch.
- KIND is a description of the type of entity that was being matched.
+ CONTEXT is a description of the type of entity that was being matched.
VALUE is the invalid value that was given.
PROBLEM is the return value from argmatch. */
void
-argmatch_invalid (const char *kind, const char *value, int problem)
+argmatch_invalid (const char *context, const char *value, int problem)
{
- enum quoting_style saved_quoting_style;
-
- /* Make sure to have a good quoting style to report errors.
- literal is insane here. */
- saved_quoting_style = get_quoting_style (NULL);
- set_quoting_style (NULL, ARGMATCH_QUOTING_STYLE);
-
- /* There is an error */
- fprintf (stderr, "%s: ", program_name);
- if (problem == -1)
- fprintf (stderr, _("invalid argument %s for `%s'"),
- quotearg (value), kind);
- else /* Assume -2. */
- fprintf (stderr, _("ambiguous argument %s for `%s'"),
- quotearg (value), kind);
- putc ('\n', stderr);
+ char const *format = (problem == -1
+ ? _("invalid argument %s for `%s'")
+ : _("ambiguous argument %s for `%s'"));
- set_quoting_style (NULL, saved_quoting_style);
+ error (0, 0, format, quotearg_style (ARGMATCH_QUOTING_STYLE, value), context);
}
/* List the valid arguments for argmatch.
putc ('\n', stderr);
}
-/* Call __argmatch_internal, but handle the error so that it never
- returns. Errors are reported to the users with a list of valid
- values.
+/* Never failing versions of the previous functions.
+
+ CONTEXT is the context for which argmatch is called (e.g.,
+ "--version-control", or "$VERSION_CONTROL" etc.). Upon failure,
+ calls the (supposed never to return) function EXIT_FN. */
- KIND is a description of the type of entity that was being matched.
- ARG, ARGLIST, and SENSITIVE are the same as in __argmatch_internal
- VALIST, and VALSIZE are the same as in valid_args */
int
-__xargmatch_internal (const char *kind, const char *arg,
- const char *const *arglist,
+__xargmatch_internal (const char *context,
+ const char *arg, const char *const *arglist,
const char *vallist, size_t valsize,
- int case_sensitive)
+ int case_sensitive,
+ argmatch_exit_fn exit_fn)
{
- int i;
-
- i = __argmatch_internal (arg, arglist, vallist, valsize, case_sensitive);
- if (i >= 0)
- {
- /* Success */
- return i;
- }
- else
- {
- /* Failure */
- argmatch_invalid (kind, arg, i);
- argmatch_valid (arglist, vallist, valsize);
- exit (EXIT_BADARG);
- }
- return -1; /* To please some compilers */
+ int res = __argmatch_internal (arg, arglist,
+ vallist, valsize,
+ case_sensitive);
+ if (res >= 0)
+ /* Success. */
+ return res;
+
+ /* We failed. Explain why. */
+ argmatch_invalid (context, arg, res);
+ argmatch_valid (arglist, vallist, valsize);
+ (*exit_fn) ();
+
+ return -1; /* To please the compilers. */
}
/* Look for VALUE in VALLIST, an array of objects of size VALSIZE and
return the first corresponding argument in ARGLIST */
const char *
-argmatch_to_argument (char *value,
+argmatch_to_argument (const char *value,
const char *const *arglist,
const char *vallist, size_t valsize)
{
/*
* Based on "getversion.c" by David MacKenzie <djm@gnu.ai.mit.edu>
*/
-char *rogram_name;
+char *program_name;
extern const char *getenv ();
/* When to make backup files. */
projects / gnulib.git / blobdiff