Update.

2000-07-23  Bruno Haible  <haible@clisp.cons.org>

	* wctype/wchar-lookup.h: New file.
	* wctype/iswctype.c: Include "wchar-lookup.h".
	(__iswctype): Support alternate locale format with 3-level tables.
	* wctype/iswctype_l.c (__iswctype_l): Likewise.
	* wctype/towctrans.c (__towctrans): Likewise.
	* wctype/towctrans_l.c (__towctrans_l): Likewise.
	* wctype/wcfuncs.c: Include "wchar-lookup.h".
	(__ctype32_wctype, __ctype32_wctrans): Declare external.
	(__iswalnum, __iswalpha, __iswcntrl, __iswdigit, __iswlower,
	__iswgraph, __iswprint, __iswpunct, __iswspace, __iswupper,
	__iswxdigit, towlower, towupper): Support alternate locale format
	with 3-level tables.
	* wctype/wcextra.c (iswblank): Likewise.
	* wctype/wcfuncs_l.c: Include "wchar-lookup.h".
	(__iswalnum_l, __iswalpha_l, __iswcntrl_l, __iswdigit_l, __iswlower_l,
	__iswgraph_l, __iswprint_l, __iswpunct_l, __iswspace_l, __iswupper_l,
	__iswxdigit_l, __towlower_l, __towupper_l): Support alternate locale
	format with 3-level tables.
	* wctype/wcextra_l.c (__iswblank_l): Likewise.
	* wctype/wctype.c (__wctype): Likewise.  In the alternate locale
	format, return a 3-level table pointer.
	* wctype/wctype_l.c (__wctype_l): Likewise.
	* wctype/wctrans.c (wctrans): Likewise.
	* wctype/wctype.h (__ISwupper, __ISwlower, __ISwalpha, __ISwdigit,
	__ISwxdigit, __ISwspace, __ISwprint, __ISwgraph, __ISwblank,
	__ISwcntrl, __ISwpunct, __ISwalnum): New enum values.
	(iswctype): Remove macro definition.
	* wcsmbs/wcwidth.h: Include "wchar-lookup.h".
	(internal_wcwidth): Support alternate locale format with 3-level
	tables.
	* locale/langinfo.h (_NL_CTYPE_CLASS_OFFSET, _NL_CTYPE_MAP_OFFSET):
	New nl_items.
	* locale/categories.def (_NL_CTYPE_CLASS_OFFSET, _NL_CTYPE_MAP_OFFSET):
	Define them as being type "word".
	* locale/C-ctype.c (_nl_C_LC_CTYPE): Add initializers for them.
	* ctype/ctype-info.c (__ctype32_wctype, __ctype32_wctrans,
	__ctype32_width): New exported variables.
	* locale/lc-ctype.c (_nl_postload_ctype): Initialize them in the
	alternate locale format. Don't initialize __ctype_names and
	__ctype_width in the alternate locale format.
	* locale/programs/localedef.h (oldstyle_tables): New declaration.
	* locale/programs/localedef.c (oldstyle_tables): New variable.
	(OPT_OLDSTYLE): New macro.
	(options): Add --old-style option.
	(parse_opt): Handle --old-style option.
	* locale/programs/ld-ctype.c (locale_ctype_t): Add class_offset,
	map_offset, class_3level, map_3level, width_3level members.
	(ctype_output): Support for alternate locale format: Computation of
	nelems changes. _NL_CTYPE_TOUPPER32, _NL_CTYPE_TOLOWER32 and
	_NL_CTYPE_CLASS32 only 256 characters. _NL_CTYPE_NAMES empty.
	New fields _NL_CTYPE_CLASS_OFFSET, _NL_CTYPE_MAP_OFFSET. Field
	_NL_CTYPE_WIDTH now contains the three-level table. Extra elems
	now contain both class and map tables.
	(struct wctype_table): New type.
	(wctype_table_init, wctype_table_add, wctype_table_finalize): New
	functions.
	(struct wcwidth_table): New type.
	(wcwidth_table_init, wcwidth_table_add, wcwidth_table_finalize): New
	functions.
	(struct wctrans_table): New type.
	(wctrans_table_init, wctrans_table_add, wctrans_table_finalize): New
	functions.
	(allocate_arrays): Support for alternate locale format: Set
	plane_size and plane_cnt to 0. Restrict ctype->ctype32_b to the first
	256 characters. Compute ctype->class_3level. Restrict ctype->map32[idx]
	to the first 256 characters. Compute ctype->map_3level. Set
	ctype->class_offset and ctype->map_offset. Compute ctype->width_3level
	instead of ctype->width.

1 files changed, 31 insertions, 11 deletions

diff --git a/wcsmbs/wcwidth.h b/wcsmbs/wcwidth.h
index ffc74be..86a2f21 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;
+    }
 }