summaryrefslogtreecommitdiffstats
path: root/lib/sh/wcswidth.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/sh/wcswidth.c')
-rw-r--r--lib/sh/wcswidth.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/sh/wcswidth.c b/lib/sh/wcswidth.c
new file mode 100644
index 0000000..1a30d9f
--- /dev/null
+++ b/lib/sh/wcswidth.c
@@ -0,0 +1,46 @@
+/* wcswidth.c - compute display width of wide character string */
+
+/* Copyright (C) 2010 Free Software Foundation, Inc.
+
+ This file is part of GNU Bash, the Bourne Again SHell.
+
+ Bash 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 3 of the License, or
+ (at your option) any later version.
+
+ Bash is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#if defined (HANDLE_MULTIBYTE) && !defined (HAVE_WCSWIDTH)
+
+#include <stdc.h>
+#include <wchar.h>
+#include <bashansi.h>
+
+int
+wcswidth(pwcs, n)
+ const wchar_t *pwcs;
+ size_t n;
+{
+ wchar_t wc;
+ int len, l;
+
+ len = 0;
+ while (n-- > 0 && (wc = *pwcs++) != L'\0')
+ {
+ if ((l = wcwidth(wc)) < 0)
+ return (-1);
+ len += l;
+ }
+ return (len);
+}
+#endif