*** empty log message ***

[gnulib.git] / lib / mbswidth.h

diff --git a/lib/mbswidth.h b/lib/mbswidth.h
index 1ef47d6..bfda283 100644 (file)
--- 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));