pmccabe2html: escaping of special characters

[gnulib.git] / lib / mbspcasecmp.c

diff --git a/lib/mbspcasecmp.c b/lib/mbspcasecmp.c
index 1e452e8..225f2e3 100644 (file)
--- a/lib/mbspcasecmp.c
+++ b/lib/mbspcasecmp.c
@@ -1,11 +1,11 @@
 /* Case-insensitive string comparison function.
-   Copyright (C) 1998-1999, 2005-2007 Free Software Foundation, Inc.
+   Copyright (C) 1998-1999, 2005-2008, 2010-2013 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2007.
 
-   This program is free software; you can redistribute it and/or modify
+   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
@@ -13,8 +13,7 @@
    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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
@@ -23,19 +22,16 @@
 
 #include <ctype.h>
 
-#if HAVE_MBRTOWC
-# include "mbuiter.h"
-#endif
+#include "mbuiter.h"
 
 #define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
 
 /* Compare the initial segment of the character string STRING consisting of
    at most mbslen (PREFIX) characters with the character string PREFIX,
-   ignoring case, returning less than, equal to or greater than zero if this
-   initial segment is lexicographically less than, equal to or greater than
-   PREFIX.
-   Note: This function may, in multibyte locales, return 0 if STRING is of
-   smaller length than PREFIX!  */
+   ignoring case.  If the two match, return a pointer to the first byte
+   after this prefix in STRING.  Otherwise, return NULL.
+   Note: This function may, in multibyte locales, return non-NULL if STRING
+   is of smaller length than PREFIX!  */
 char *
 mbspcasecmp (const char *string, const char *prefix)
 {
@@ -48,7 +44,6 @@ mbspcasecmp (const char *string, const char *prefix)
   /* Be careful not to look at the entire extent of STRING or PREFIX until
      needed.  This is useful because when two strings differ, the difference is
      most often already in the very few first characters.  */
-#if HAVE_MBRTOWC
   if (MB_CUR_MAX > 1)
     {
       mbui_iterator_t iter1;
@@ -58,43 +53,42 @@ mbspcasecmp (const char *string, const char *prefix)
       mbui_init (iter2, prefix);
 
       while (mbui_avail (iter1) && mbui_avail (iter2))
-       {
-         int cmp = mb_casecmp (mbui_cur (iter1), mbui_cur (iter2));
+        {
+          int cmp = mb_casecmp (mbui_cur (iter1), mbui_cur (iter2));
 
-         if (cmp != 0)
-           return NULL;
+          if (cmp != 0)
+            return NULL;
 
-         mbui_advance (iter1);
-         mbui_advance (iter2);
-       }
+          mbui_advance (iter1);
+          mbui_advance (iter2);
+        }
       if (!mbui_avail (iter2))
-       /* PREFIX equals STRING or is terminated before STRING.  */
-       return (char *) mbui_cur_ptr (iter1);
+        /* PREFIX equals STRING or is terminated before STRING.  */
+        return (char *) mbui_cur_ptr (iter1);
       else
-       /* STRING terminated before PREFIX.  */
-       return NULL;
+        /* STRING terminated before PREFIX.  */
+        return NULL;
     }
   else
-#endif
     {
       const unsigned char *p1 = (const unsigned char *) string;
       const unsigned char *p2 = (const unsigned char *) prefix;
       unsigned char c1, c2;
 
       for (; ; p1++, p2++)
-       {
-         c1 = TOLOWER (*p1);
-         c2 = TOLOWER (*p2);
+        {
+          c1 = TOLOWER (*p1);
+          c2 = TOLOWER (*p2);
 
-         if (c2 == '\0' || c1 != c2)
-           break;
-       }
+          if (c2 == '\0' || c1 != c2)
+            break;
+        }
 
       if (c2 == '\0')
-       /* PREFIX equals STRING or is terminated before STRING.  */
-       return (char *) p1;
+        /* PREFIX equals STRING or is terminated before STRING.  */
+        return (char *) p1;
       else
-       /* STRING terminated before PREFIX.  */
-       return NULL;
+        /* STRING terminated before PREFIX.  */
+        return NULL;
     }
 }