From: Jim Meyering <jim@meyering.net>
Date: Sat, 29 Jul 2000 06:02:28 +0000 (+0000)
Subject: (mbswidth): Add a flags argument.
X-Git-Tag: cvs-readonly~6395
X-Git-Url: http://erislabs.net/gitweb/?a=commitdiff_plain;h=91f65b21df1dc4efd7e28b849c00fe44cd9463e2;hp=15d593c5e659f28d29ff75df0763f59dad1c4c46;p=gnulib.git

(mbswidth): Add a flags argument.
(mbswidth): New declaration.
(MBSW_ACCEPT_INVALID, MBSW_ACCEPT_UNPRINTABLE): New macros.
---

diff --git a/lib/mbswidth.h b/lib/mbswidth.h
index 1ef47d622..f76021b93 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.  */
+
+/* Assume invalid characters have width 0.  If this is not set, the
+   functions return -1 if an invalid or incomplete character occurs.  */
+#define MBSW_ACCEPT_INVALID		1
+
+/* Assume unprintable characters have width 1.  If this is not set, the
+   functions return -1 if a non-printable character occurs.  */
+#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));