X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmbswidth.h;h=bfda2832bc23ae6afb50e64b3751d355225a8eca;hb=023946e6df1ce4ce382f2385306427413fe46085;hp=1ef47d6224de86c5c311318cafb821185135a9b0;hpb=f2c15d342cfe4dbc79c6d7f466e138bfcc89c901;p=gnulib.git

diff --git a/lib/mbswidth.h b/lib/mbswidth.h
index 1ef47d622..bfda2832b 100644
--- a/lib/mbswidth.h
+++ b/lib/mbswidth.h
@@ -23,4 +23,19 @@
 # endif
 #endif
 
-extern int mbswidth PARAMS ((const char *string));
+/* Optional flags to influence mbswidth/mbsnwidth behavior.  */
+
+/* If this bit is set, assume invalid characters have width 0.
+   Otherwise, return -1 upon finding an invalid or incomplete character.  */
+#define MBSW_ACCEPT_INVALID 1
+
+/* If this bit is set, assume unprintable characters have width 1.
+   Otherwise, return -1 upon finding a non-printable character.  */
+#define MBSW_ACCEPT_UNPRINTABLE	2
+
+/* Returns the number of screen columns needed for STRING.  */
+extern int mbswidth PARAMS ((const char *string, int flags));
+
+/* Returns the number of screen columns needed for the NBYTES bytes
+   starting at BUF.  */
+extern int mbsnwidth PARAMS ((const char *buf, size_t nbytes, int flags));