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authorUlrich Drepper <drepper@redhat.com>2000-07-25 04:37:22 +0000
committerUlrich Drepper <drepper@redhat.com>2000-07-25 04:37:22 +0000
commitef4461440540e0ad4e25ba35203594e25dc38b3a (patch)
tree6b454c8f044abd370ab99f5e7f05f34b98d13fb6 /wcsmbs/wcwidth.h
parentf79d99cb260028d1eae399c99f8cee645a32538f (diff)
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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.
Diffstat (limited to 'wcsmbs/wcwidth.h')
-rw-r--r--wcsmbs/wcwidth.h42
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;
+ }
}