(getargs) [MSDOS]: Don't assume optarg != NULL

[bison.git] / lib / argmatch.c

diff --git a/lib/argmatch.c b/lib/argmatch.c
index 3fc4bff271b705583cd3ed6b12b855b0caebe789..4ff5a492ea75643d9ff453c7eb2fa386103b4bf9 100644 (file)
--- a/lib/argmatch.c
+++ b/lib/argmatch.c
@@ -1,5 +1,5 @@
 /* argmatch.c -- find a match for a string in an array
 /* argmatch.c -- find a match for a string in an array

-   Copyright (C) 1990, 1998, 1999, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1998, 1999, 2001, 2002 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
 
    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


@@ -18,28 +18,24 @@
 /* Written by David MacKenzie <djm@ai.mit.edu>
    Modified by Akim Demaille <demaille@inf.enst.fr> */
 
 /* Written by David MacKenzie <djm@ai.mit.edu>
    Modified by Akim Demaille <demaille@inf.enst.fr> */
 

+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Specification.  */

 #include "argmatch.h"
 
 #include <stdio.h>
 #include "argmatch.h"
 
 #include <stdio.h>

-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <string.h>
-#endif
+#include <stdlib.h>
+#include <string.h>

 
 

-#if HAVE_LOCALE_H
-# include <locale.h>
-#endif
-
-#if ENABLE_NLS
-# include <libintl.h>
-# define _(Text) gettext (Text)
-#else
-# define _(Text) Text
-#endif
+#include "gettext.h"
+#define _(msgid) gettext (msgid)

 
 #include "error.h"
 #include "quotearg.h"
 #include "quote.h"
 
 #include "error.h"
 #include "quotearg.h"
 #include "quote.h"

+#include "unlocked-io.h"

 
 /* When reporting an invalid argument, show nonprinting characters
    by using the quoting style ARGMATCH_QUOTING_STYLE.  Do not use
 
 /* When reporting an invalid argument, show nonprinting characters
    by using the quoting style ARGMATCH_QUOTING_STYLE.  Do not use


@@ -48,14 +44,6 @@
 # define ARGMATCH_QUOTING_STYLE locale_quoting_style
 #endif
 
 # define ARGMATCH_QUOTING_STYLE locale_quoting_style
 #endif
 

-/* 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
-

 /* Non failing version of argmatch call this function after failing. */
 #ifndef ARGMATCH_DIE
 # define ARGMATCH_DIE exit (EXIT_FAILURE)
 /* Non failing version of argmatch call this function after failing. */
 #ifndef ARGMATCH_DIE
 # define ARGMATCH_DIE exit (EXIT_FAILURE)


@@ -80,7 +68,6 @@ argmatch_exit_fn argmatch_die = __argmatch_die;
    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).
    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).

-   If SENSITIVE, comparison is case sensitive.

 
    If VALLIST is none null, use it to resolve ambiguities limited to
    synonyms, i.e., for
 
    If VALLIST is none null, use it to resolve ambiguities limited to
    synonyms, i.e., for


@@ -88,10 +75,9 @@ argmatch_exit_fn argmatch_die = __argmatch_die;
      "no", "nope" -> 1
    "y" is a valid argument, for `0', and "n" for `1'.  */
 
      "no", "nope" -> 1
    "y" is a valid argument, for `0', and "n" for `1'.  */
 

-static int
-__argmatch_internal (const char *arg, const char *const *arglist,
-                    const char *vallist, size_t valsize,
-                    int case_sensitive)
+int
+argmatch (const char *arg, const char *const *arglist,
+         const char *vallist, size_t valsize)

 {
   int i;                       /* Temporary index in ARGLIST.  */
   size_t arglen;               /* Length of ARG.  */
 {
   int i;                       /* Temporary index in ARGLIST.  */
   size_t arglen;               /* Length of ARG.  */


@@ -103,9 +89,7 @@ __argmatch_internal (const char *arg, const char *const *arglist,
   /* Test all elements for either exact match or abbreviated matches.  */
   for (i = 0; arglist[i]; i++)
     {
   /* Test all elements for either exact match or abbreviated matches.  */
   for (i = 0; arglist[i]; i++)
     {

-      if (case_sensitive
-         ? !strncmp (arglist[i], arg, arglen)
-         : !strncasecmp (arglist[i], arg, arglen))
+      if (!strncmp (arglist[i], arg, arglen))

        {
          if (strlen (arglist[i]) == arglen)
            /* Exact match found.  */
        {
          if (strlen (arglist[i]) == arglen)
            /* Exact match found.  */


@@ -133,22 +117,6 @@ __argmatch_internal (const char *arg, const char *const *arglist,
     return matchind;
 }
 
     return matchind;
 }
 

-/* argmatch - case sensitive version */
-int
-argmatch (const char *arg, const char *const *arglist,
-         const char *vallist, size_t valsize)
-{
-  return __argmatch_internal (arg, arglist, vallist, valsize, 1);
-}
-
-/* argcasematch - case insensitive version */
-int
-argcasematch (const char *arg, const char *const *arglist,
-             const char *vallist, size_t valsize)
-{
-  return __argmatch_internal (arg, arglist, vallist, valsize, 0);
-}
-

 /* Error reporting for argmatch.
    CONTEXT is a description of the type of entity that was being matched.
    VALUE is the invalid value that was given.
 /* Error reporting for argmatch.
    CONTEXT is a description of the type of entity that was being matched.
    VALUE is the invalid value that was given.


@@ -203,12 +171,9 @@ int
 __xargmatch_internal (const char *context,
                      const char *arg, const char *const *arglist,
                      const char *vallist, size_t valsize,
 __xargmatch_internal (const char *context,
                      const char *arg, const char *const *arglist,
                      const char *vallist, size_t valsize,

-                     int case_sensitive,

                      argmatch_exit_fn exit_fn)
 {
                      argmatch_exit_fn exit_fn)
 {

-  int res = __argmatch_internal (arg, arglist,
-                                vallist, valsize,
-                                case_sensitive);
+  int res = argmatch (arg, arglist, vallist, valsize);

   if (res >= 0)
     /* Success. */
     return res;
   if (res >= 0)
     /* Success. */
     return res;


@@ -294,12 +259,12 @@ main (int argc, const char *const *argv)
     }
 
   if ((cp = getenv ("VERSION_CONTROL")))
     }
 
   if ((cp = getenv ("VERSION_CONTROL")))

-    backup_type = XARGCASEMATCH ("$VERSION_CONTROL", cp,
-                                backup_args, backup_vals);
+    backup_type = XARGMATCH ("$VERSION_CONTROL", cp,
+                            backup_args, backup_vals);

 
   if (argc == 2)
 
   if (argc == 2)

-    backup_type = XARGCASEMATCH (program_name, argv[1],
-                                backup_args, backup_vals);
+    backup_type = XARGMATCH (program_name, argv[1],
+                            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));