73 lines
2.9 KiB
C
73 lines
2.9 KiB
C
/* Define current locale data for LC_CTYPE category.
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Copyright (C) 1995-1999, 2000, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include "localeinfo.h"
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#include <ctype.h>
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#include <endian.h>
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#include <stdint.h>
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_NL_CURRENT_DEFINE (LC_CTYPE);
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/* We are called after loading LC_CTYPE data to load it into
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the variables used by the ctype.h macros.
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There are three arrays of short ints which need to be indexable
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from -128 to 255 inclusive. Stored in the locale data file are
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a copy of each for each byte order. */
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void
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_nl_postload_ctype (void)
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{
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#include <shlib-compat.h>
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3)
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#define paste(a,b) paste1(a,b)
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#define paste1(a,b) a##b
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#define current(type,x,offset) \
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((const type *) _NL_CURRENT (LC_CTYPE, paste(_NL_CTYPE_,x)) + offset)
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/* These are defined in ctype-info.c.
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The declarations here must match those in localeinfo.h.
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These point into arrays of 384, so they can be indexed by any `unsigned
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char' value [0,255]; by EOF (-1); or by any `signed char' value
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[-128,-1). ISO C requires that the ctype functions work for `unsigned
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char' values and for EOF; we also support negative `signed char' values
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for broken old programs. The case conversion arrays are of `int's
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rather than `unsigned char's because tolower (EOF) must be EOF, which
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doesn't fit into an `unsigned char'. But today more important is that
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the arrays are also used for multi-byte character sets. */
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extern __const unsigned short int *__ctype_old_b; /* Characteristics. */
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extern __const __int32_t *__ctype_old_tolower; /* Case conversions. */
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extern __const __int32_t *__ctype_old_toupper; /* Case conversions. */
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extern const uint32_t *__ctype32_old_b;
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extern const uint32_t *__ctype32_old_toupper;
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extern const uint32_t *__ctype32_old_tolower;
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__ctype_old_b = current (uint16_t, CLASS, 128);
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__ctype_old_toupper = current (uint32_t, TOUPPER, 128);
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__ctype_old_tolower = current (uint32_t, TOLOWER, 128);
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__ctype32_old_b = current (uint32_t, CLASS32, 0);
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__ctype32_old_toupper = current (uint32_t, TOUPPER32, 0);
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__ctype32_old_tolower = current (uint32_t, TOLOWER32, 0);
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#endif
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}
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