* lib/memcasecmp.c: Include <limits.h>.

[gnulib.git] / lib / exclude.c

diff --git a/lib/exclude.c b/lib/exclude.c
index 55f1a39..f5978a9 100644 (file)
--- a/lib/exclude.c
+++ b/lib/exclude.c
@@ -1,7 +1,7 @@
 /* exclude.c -- exclude file names
 
-   Copyright (C) 1992, 1993, 1994, 1997, 1999, 2000, 2001, 2002, 2003 Free
-   Software Foundation, Inc.
+   Copyright (C) 1992, 1993, 1994, 1997, 1999, 2000, 2001, 2002, 2003,
+   2004, 2005, 2006 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
@@ -16,11 +16,11 @@
    You should have received a copy of the GNU General Public License
    along with this program; see the file COPYING.
    If not, write to the Free Software Foundation,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* Written by Paul Eggert <eggert@twinsun.com>  */
 
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
 
@@ -28,9 +28,6 @@
 
 #include <ctype.h>
 #include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -38,24 +35,14 @@ extern int errno;
 
 #include "exclude.h"
 #include "fnmatch.h"
-#include "unlocked-io.h"
+#include "strcase.h"
 #include "xalloc.h"
+#include "verify.h"
 
-#if STDC_HEADERS || (! defined isascii && ! HAVE_ISASCII)
-# define IN_CTYPE_DOMAIN(c) true
-#else
-# define IN_CTYPE_DOMAIN(c) isascii (c)
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
 #endif
 
-static inline bool
-is_space (unsigned char c)
-{
-  return IN_CTYPE_DOMAIN (c) && isspace (c);
-}
-
-/* Verify a requirement at compile-time (unlike assert, which is runtime).  */
-#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
-
 /* Non-GNU systems lack these options, so we don't need to check them.  */
 #ifndef FNM_CASEFOLD
 # define FNM_CASEFOLD 0
@@ -64,11 +51,10 @@ is_space (unsigned char c)
 # define FNM_LEADING_DIR 0
 #endif
 
-verify (EXCLUDE_macros_do_not_collide_with_FNM_macros,
-       (((EXCLUDE_ANCHORED | EXCLUDE_INCLUDE | EXCLUDE_WILDCARDS)
-         & (FNM_PATHNAME | FNM_NOESCAPE | FNM_PERIOD | FNM_LEADING_DIR
-            | FNM_CASEFOLD))
-        == 0));
+verify (((EXCLUDE_ANCHORED | EXCLUDE_INCLUDE | EXCLUDE_WILDCARDS)
+        & (FNM_PATHNAME | FNM_NOESCAPE | FNM_PERIOD | FNM_LEADING_DIR
+           | FNM_CASEFOLD))
+       == 0);
 
 /* An exclude pattern-options pair.  The options are fnmatch options
    ORed with EXCLUDE_* options.  */
@@ -131,10 +117,28 @@ fnmatch_no_wildcards (char const *pattern, char const *f, int options)
     }
 }
 
+bool
+exclude_fnmatch (char const *pattern, char const *f, int options)
+{
+  int (*matcher) (char const *, char const *, int) =
+    (options & EXCLUDE_WILDCARDS
+     ? fnmatch
+     : fnmatch_no_wildcards);
+  bool matched = ((*matcher) (pattern, f, options) == 0);
+  char const *p;
+
+  if (! (options & EXCLUDE_ANCHORED))
+    for (p = f; *p && ! matched; p++)
+      if (*p == '/' && p[1] != '/')
+       matched = ((*matcher) (pattern, p + 1, options) == 0);
+
+  return matched;
+}
+
 /* Return true if EX excludes F.  */
 
 bool
-excluded_filename (struct exclude const *ex, char const *f)
+excluded_file_name (struct exclude const *ex, char const *f)
 {
   size_t exclude_count = ex->exclude_count;
 
@@ -156,21 +160,7 @@ excluded_filename (struct exclude const *ex, char const *f)
          char const *pattern = exclude[i].pattern;
          int options = exclude[i].options;
          if (excluded == !! (options & EXCLUDE_INCLUDE))
-           {
-             int (*matcher) (char const *, char const *, int) =
-               (options & EXCLUDE_WILDCARDS
-                ? fnmatch
-                : fnmatch_no_wildcards);
-             bool matched = ((*matcher) (pattern, f, options) == 0);
-             char const *p;
-
-             if (! (options & EXCLUDE_ANCHORED))
-               for (p = f; *p && ! matched; p++)
-                 if (*p == '/' && p[1] != '/')
-                   matched = ((*matcher) (pattern, p + 1, options) == 0);
-
-             excluded ^= matched;
-           }
+           excluded ^= exclude_fnmatch (pattern, f, options);
        }
 
       return excluded;
@@ -193,17 +183,17 @@ add_exclude (struct exclude *ex, char const *pattern, int options)
   patopts->options = options;
 }
 
-/* Use ADD_FUNC to append to EX the patterns in FILENAME, each with
+/* Use ADD_FUNC to append to EX the patterns in FILE_NAME, each with
    OPTIONS.  LINE_END terminates each pattern in the file.  If
    LINE_END is a space character, ignore trailing spaces and empty
    lines in FILE.  Return -1 on failure, 0 on success.  */
 
 int
 add_exclude_file (void (*add_func) (struct exclude *, char const *, int),
-                 struct exclude *ex, char const *filename, int options,
+                 struct exclude *ex, char const *file_name, int options,
                  char line_end)
 {
-  bool use_stdin = filename[0] == '-' && !filename[1];
+  bool use_stdin = file_name[0] == '-' && !file_name[1];
   FILE *in;
   char *buf = NULL;
   char *p;
@@ -216,7 +206,7 @@ add_exclude_file (void (*add_func) (struct exclude *, char const *, int),
 
   if (use_stdin)
     in = stdin;
-  else if (! (in = fopen (filename, "r")))
+  else if (! (in = fopen (file_name, "r")))
     return -1;
 
   while ((c = getc (in)) != EOF)
@@ -242,12 +232,12 @@ add_exclude_file (void (*add_func) (struct exclude *, char const *, int),
       {
        char *pattern_end = p;
 
-       if (is_space (line_end))
+       if (isspace ((unsigned char) line_end))
          {
            for (; ; pattern_end--)
              if (pattern_end == pattern)
                goto next_pattern;
-             else if (! is_space (pattern_end[-1]))
+             else if (! isspace ((unsigned char) pattern_end[-1]))
                break;
          }