updated from FSF

diff --git a/lib/fnmatch.c b/lib/fnmatch.c
index 525e6a8..20e2b50 100644 (file)
--- a/lib/fnmatch.c
+++ b/lib/fnmatch.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
 
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public License as
@@ -16,16 +16,13 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
 Cambridge, MA 02139, USA.  */
 
 #include <errno.h>
-#include "fnmatch.h"
+#include <fnmatch.h>
+#include <ctype.h>
 
 #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
 extern int errno;
 #endif
 
-#if !__STDC__
-#define const
-#endif
-
 /* Match STRING against the filename pattern PATTERN, returning zero if
    it matches, nonzero if not.  */
 int
@@ -37,40 +34,42 @@ fnmatch (pattern, string, flags)
   register const char *p = pattern, *n = string;
   register char c;
 
-  if ((flags & ~__FNM_FLAGS) != 0)
-    {
-      errno = EINVAL;
-      return -1;
-    }
+/* Note that this evalutes C many times.  */
+#define FOLD(c)        ((flags & FNM_CASEFOLD) && isupper (c) ? tolower (c) : (c))
 
   while ((c = *p++) != '\0')
     {
+      c = FOLD (c);
+
       switch (c)
        {
        case '?':
          if (*n == '\0')
            return FNM_NOMATCH;
-         else if ((flags & FNM_PATHNAME) && *n == '/')
+         else if ((flags & FNM_FILE_NAME) && *n == '/')
            return FNM_NOMATCH;
          else if ((flags & FNM_PERIOD) && *n == '.' &&
-                  (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+                  (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
            return FNM_NOMATCH;
          break;
 
        case '\\':
          if (!(flags & FNM_NOESCAPE))
-           c = *p++;
-         if (*n != c)
+           {
+             c = *p++;
+             c = FOLD (c);
+           }
+         if (FOLD (*n) != c)
            return FNM_NOMATCH;
          break;
 
        case '*':
          if ((flags & FNM_PERIOD) && *n == '.' &&
-             (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+             (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
            return FNM_NOMATCH;
 
          for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
-           if (((flags & FNM_PATHNAME) && *n == '/') ||
+           if (((flags & FNM_FILE_NAME) && *n == '/') ||
                (c == '?' && *n == '\0'))
              return FNM_NOMATCH;
 
@@ -79,8 +78,9 @@ fnmatch (pattern, string, flags)
 
          {
            char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
+           c1 = FOLD (c1);
            for (--p; *n != '\0'; ++n)
-             if ((c == '[' || *n == c1) &&
+             if ((c == '[' || FOLD (*n) == c1) &&
                  fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
                return 0;
            return FNM_NOMATCH;
@@ -95,7 +95,7 @@ fnmatch (pattern, string, flags)
              return FNM_NOMATCH;
 
            if ((flags & FNM_PERIOD) && *n == '.' &&
-               (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+               (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
              return FNM_NOMATCH;
 
            not = (*p == '!' || *p == '^');
@@ -110,13 +110,16 @@ fnmatch (pattern, string, flags)
                if (!(flags & FNM_NOESCAPE) && c == '\\')
                  cstart = cend = *p++;
 
+               cstart = cend = FOLD (cstart);
+
                if (c == '\0')
                  /* [ (unterminated) loses.  */
                  return FNM_NOMATCH;
 
                c = *p++;
+               c = FOLD (c);
 
-               if ((flags & FNM_PATHNAME) && c == '/')
+               if ((flags & FNM_FILE_NAME) && c == '/')
                  /* [/] can never match.  */
                  return FNM_NOMATCH;
 
@@ -127,10 +130,12 @@ fnmatch (pattern, string, flags)
                      cend = *p++;
                    if (cend == '\0')
                      return FNM_NOMATCH;
+                   cend = FOLD (cend);
+
                    c = *p++;
                  }
 
-               if (*n >= cstart && *n <= cend)
+               if (FOLD (*n) >= cstart && FOLD (*n) <= cend)
                  goto matched;
 
                if (c == ']')
@@ -150,7 +155,7 @@ fnmatch (pattern, string, flags)
 
                c = *p++;
                if (!(flags & FNM_NOESCAPE) && c == '\\')
-                 /* 1003.2d11 is unclear if this is right.  %%% */
+                 /* XXX 1003.2d11 is unclear if this is right.  */
                  ++p;
              }
            if (not)
@@ -159,14 +164,18 @@ fnmatch (pattern, string, flags)
          break;
 
        default:
-         if (c != *n)
+         if (c != FOLD (*n))
            return FNM_NOMATCH;
        }
 
       ++n;
     }
 
-  if (*n == '\0' || ((flags & FNM_TARPATH) && *n == '/'))
+  if (*n == '\0')
+    return 0;
+
+  if ((flags & FNM_LEADING_DIR) && *n == '/')
+    /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz".  */
     return 0;
 
   return FNM_NOMATCH;