/* Generic conversion to and from 8bit charsets, converting from UCS using gaps. Copyright (C) 1997-1999, 2000-2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <dlfcn.h> #include <stdint.h> struct gap { uint16_t start; uint16_t end; int32_t idx; }; /* Now we can include the tables. */ #include TABLES #ifndef NONNUL # define NONNUL(c) ((c) != '\0') #endif #define FROM_LOOP from_gap #define TO_LOOP to_gap #define DEFINE_INIT 1 #define DEFINE_FINI 1 #define MIN_NEEDED_FROM 1 #define MIN_NEEDED_TO 4 /* First define the conversion function from the 8bit charset to UCS4. */ #define MIN_NEEDED_INPUT MIN_NEEDED_FROM #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO #define LOOPFCT FROM_LOOP #define BODY \ { \ uint32_t ch = to_ucs4[*inptr]; \ \ if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (*inptr)) \ { \ /* This is an illegal character. */ \ STANDARD_FROM_LOOP_ERR_HANDLER (1); \ } \ else \ { \ put32 (outptr, ch); \ outptr += 4; \ } \ \ ++inptr; \ } #define LOOP_NEED_FLAGS #define ONEBYTE_BODY \ { \ uint32_t ch = to_ucs4[c]; \ \ if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (c)) \ return WEOF; \ else \ return ch; \ } #include <iconv/loop.c> /* Next, define the other direction. */ #define MIN_NEEDED_INPUT MIN_NEEDED_TO #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM #define LOOPFCT TO_LOOP #define BODY \ { \ const struct gap *rp = from_idx; \ uint32_t ch = get32 (inptr); \ unsigned char res; \ \ if (__builtin_expect (ch >= 0xffff, 0)) \ { \ UNICODE_TAG_HANDLER (ch, 4); \ rp = NULL; \ } \ else \ while (ch > rp->end) \ ++rp; \ if (__builtin_expect (rp == NULL, 0) \ || __builtin_expect (ch < rp->start, 0) \ || (res = from_ucs4[ch + rp->idx], \ __builtin_expect (res, '\1') == '\0' && ch != 0)) \ { \ /* This is an illegal character. */ \ STANDARD_TO_LOOP_ERR_HANDLER (4); \ } \ \ *outptr++ = res; \ inptr += 4; \ } #define LOOP_NEED_FLAGS #include <iconv/loop.c> /* Now define the toplevel functions. */ #include <iconv/skeleton.c>