157 lines
5.5 KiB
C
157 lines
5.5 KiB
C
/* Conversion to and from ARMSCII-8
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Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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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, see
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<http://www.gnu.org/licenses/>. */
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#include <dlfcn.h>
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#include <stdint.h>
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/* Definitions used in the body of the `gconv' function. */
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#define CHARSET_NAME "ARMSCII-8//"
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#define FROM_LOOP from_armscii_8
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#define TO_LOOP to_armscii_8
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#define DEFINE_INIT 1
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#define DEFINE_FINI 1
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#define MIN_NEEDED_FROM 1
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#define MIN_NEEDED_TO 4
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#define ONE_DIRECTION 0
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static const uint16_t map_from_armscii_8[0xfe - 0xa2 + 1] =
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{
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0x0587, 0x0589, 0x0029, 0x0028, 0x00bb, 0x00ab, 0x2014, 0x002e,
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0x055d, 0x002c, 0x002d, 0x058a, 0x2026, 0x055c, 0x055b, 0x055e,
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0x0531, 0x0561, 0x0532, 0x0562, 0x0533, 0x0563, 0x0534, 0x0564,
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0x0535, 0x0565, 0x0536, 0x0566, 0x0537, 0x0567, 0x0538, 0x0568,
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0x0539, 0x0569, 0x053a, 0x056a, 0x053b, 0x056b, 0x053c, 0x056c,
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0x053d, 0x056d, 0x053e, 0x056e, 0x053f, 0x056f, 0x0540, 0x0570,
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0x0541, 0x0571, 0x0542, 0x0572, 0x0543, 0x0573, 0x0544, 0x0574,
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0x0545, 0x0575, 0x0546, 0x0576, 0x0547, 0x0577, 0x0548, 0x0578,
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0x0549, 0x0579, 0x054a, 0x057a, 0x054b, 0x057b, 0x054c, 0x057c,
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0x054d, 0x057d, 0x054e, 0x057e, 0x054f, 0x057f, 0x0550, 0x0580,
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0x0551, 0x0581, 0x0552, 0x0582, 0x0553, 0x0583, 0x0554, 0x0584,
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0x0555, 0x0585, 0x0556, 0x0586, 0x055a
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};
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/* First define the conversion function from ARMSCII-8 to UCS4. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
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#define LOOPFCT FROM_LOOP
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#define BODY \
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{ \
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uint_fast8_t ch = *inptr; \
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\
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if (ch <= 0xa0) \
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{ \
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/* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode. */ \
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*((uint32_t *) outptr) = ch; \
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outptr += sizeof (uint32_t); \
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} \
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else if (ch >= 0xa2 && ch <= 0xfe) \
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{ \
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/* Use the table. */ \
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*((uint32_t *) outptr) = map_from_armscii_8[ch - 0xa2]; \
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outptr += sizeof (uint32_t); \
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} \
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else \
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{ \
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/* This is an illegal character. */ \
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STANDARD_FROM_LOOP_ERR_HANDLER (1); \
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} \
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\
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++inptr; \
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}
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#define LOOP_NEED_FLAGS
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#define ONEBYTE_BODY \
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{ \
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if (c <= 0xa0) \
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/* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode. */ \
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return c; \
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else if (c >= 0xa2 && c <= 0xfe) \
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/* Use the table. */ \
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return map_from_armscii_8[c - 0xa2]; \
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else \
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return WEOF; \
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}
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#include <iconv/loop.c>
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static const unsigned char map_to_armscii_8[0x58a - 0x531 + 1] =
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{
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0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe, 0xc0,
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0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0,
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0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde, 0xe0,
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0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0,
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0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0x00, 0x00,
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0x00, 0xfe, 0xb0, 0xaf, 0xaa, 0xb1, 0x00, 0x00,
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0xb3, 0xb5, 0xb7, 0xb9, 0xbb, 0xbd, 0xbf, 0xc1,
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0xc3, 0xc5, 0xc7, 0xc9, 0xcb, 0xcd, 0xcf, 0xd1,
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0xd3, 0xd5, 0xd7, 0xd9, 0xdb, 0xdd, 0xdf, 0xe1,
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0xe3, 0xe5, 0xe7, 0xe9, 0xeb, 0xed, 0xef, 0xf1,
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0xf3, 0xf5, 0xf7, 0xf9, 0xfb, 0xfd, 0xa2, 0x00,
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0xa3, 0xad
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};
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/* Next, define the other direction. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_TO
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
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#define LOOPFCT TO_LOOP
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#define BODY \
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{ \
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uint32_t ch = *((const uint32_t *) inptr); \
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\
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if (ch <= 0xa0) \
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/* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode. */ \
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*outptr = (unsigned char) ch; \
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else if (ch == 0xab) \
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*outptr = 0xa7; \
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else if (ch == 0xbb) \
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*outptr = 0xa6; \
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else if (ch >= 0x531 && ch <= 0x58a) \
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{ \
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unsigned char oc = map_to_armscii_8[ch - 0x531]; \
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\
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if (oc == 0) \
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/* No valid mapping. */ \
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goto err; \
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\
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*outptr = oc; \
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} \
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else if (ch == 0x2014) \
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*outptr = 0xa8; \
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else if (ch == 0x2026) \
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*outptr = 0xae; \
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else \
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{ \
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UNICODE_TAG_HANDLER (ch, 4); \
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\
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/* We have an illegal character. */ \
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err: \
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STANDARD_TO_LOOP_ERR_HANDLER (4); \
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} \
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++outptr; \
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inptr += 4; \
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}
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#define LOOP_NEED_FLAGS
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#include <iconv/loop.c>
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/* Now define the toplevel functions. */
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#include <iconv/skeleton.c>
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