X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmbswidth.h;h=40d4cba0419debe8bd3b802acf05ef59d6388ef8;hb=2bf674b2395b6aff54eff7928d24f2995c37c28e;hp=1ef47d6224de86c5c311318cafb821185135a9b0;hpb=f2c15d342cfe4dbc79c6d7f466e138bfcc89c901;p=gnulib.git

diff --git a/lib/mbswidth.h b/lib/mbswidth.h
index 1ef47d622..40d4cba04 100644
--- a/lib/mbswidth.h
+++ b/lib/mbswidth.h
@@ -1,5 +1,5 @@
 /* Determine the number of screen columns needed for a string.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000-2002 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
@@ -15,12 +15,23 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
-#ifndef PARAMS
-# if defined PROTOTYPES || defined __STDC__
-#  define PARAMS(Args) Args
-# else
-#  define PARAMS(Args) ()
-# endif
-#endif
+#include <stddef.h>
 
-extern int mbswidth PARAMS ((const char *string));
+/* Optional flags to influence mbswidth/mbsnwidth behavior.  */
+
+/* If this bit is set, return -1 upon finding an invalid or incomplete
+   character.  Otherwise, assume invalid characters have width 1.  */
+#define MBSW_REJECT_INVALID 1
+
+/* If this bit is set, return -1 upon finding a non-printable character.
+   Otherwise, assume unprintable characters have width 0 if they are
+   control characters and 1 otherwise.  */
+#define MBSW_REJECT_UNPRINTABLE	2
+
+/* Returns the number of screen columns needed for STRING.  */
+#define mbswidth gnu_mbswidth  /* avoid clash with UnixWare 7.1.1 function */
+extern int mbswidth (const char *string, int flags);
+
+/* Returns the number of screen columns needed for the NBYTES bytes
+   starting at BUF.  */
+extern int mbsnwidth (const char *buf, size_t nbytes, int flags);