about summary refs log tree commit diff
path: root/wcsmbs
diff options
context:
space:
mode:
Diffstat (limited to 'wcsmbs')
-rw-r--r--wcsmbs/wcwidth.h42
1 files changed, 31 insertions, 11 deletions
diff --git a/wcsmbs/wcwidth.h b/wcsmbs/wcwidth.h
index ffc74be26c..86a2f216bd 100644
--- a/wcsmbs/wcwidth.h
+++ b/wcsmbs/wcwidth.h
@@ -21,27 +21,47 @@
 #include <wchar.h>
 #include <wctype.h>
 #include "../wctype/cname-lookup.h"
+#include "../wctype/wchar-lookup.h"
 
-/* Array containing width information.  */
+/* Tables containing character property information.  */
+extern const char *__ctype32_wctype[12];
+
+/* Tables containing width information.  */
 extern unsigned char *__ctype_width;
+extern const char *__ctype32_width;
 
 /* If the program is compiled without optimization the following declaration
    is not visible in the header.   */
 extern unsigned int *__ctype32_b;
 
 static __inline int
-internal_wcwidth (wint_t ch)
+internal_wcwidth (wint_t wc)
 {
-  size_t idx;
-  unsigned char res;
-
-  if (ch == L'\0')
+  if (wc == L'\0')
     return 0;
 
-  idx = cname_lookup (ch);
-  if (idx == ~((size_t) 0) || (__ctype32_b[idx] & _ISwprint) == 0)
-    return -1;
+  if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_HASH_SIZE) != 0)
+    {
+      /* Old locale format.  */
+      size_t idx;
+      unsigned char res;
+
+      idx = cname_lookup (wc);
+      if (idx == ~((size_t) 0) || (__ctype32_b[idx] & _ISwprint) == 0)
+	return -1;
+
+      res = __ctype_width[idx];
+      return res == (unsigned char) '\xff' ? -1 : (int) res;
+    }
+  else
+    {
+      /* New locale format.  */
+      unsigned char res;
+
+      if (wctype_table_lookup (__ctype32_wctype[__ISwprint], wc) == 0)
+	return -1;
 
-  res = __ctype_width[idx];
-  return res == (unsigned char) '\xff' ? -1 : (int) res;
+      res = wcwidth_table_lookup (__ctype32_width, wc);
+      return res == (unsigned char) '\xff' ? -1 : (int) res;
+    }
 }