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glibc/iconvdata/jisx0213.h
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/* Functions for JISX0213 conversion. | |
Copyright (C) 2002-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Bruno Haible <bruno@clisp.org>, 2002. | |
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/>. */ | |
#ifndef _JISX0213_H | |
#define _JISX0213_H 1 | |
#include <stdint.h> | |
extern const uint16_t __jisx0213_to_ucs_combining[][2]; | |
extern const uint16_t __jisx0213_to_ucs_main[120 * 94]; | |
extern const uint32_t __jisx0213_to_ucs_pagestart[]; | |
extern const int16_t __jisx0213_from_ucs_level1[2715]; | |
extern const uint16_t __jisx0213_from_ucs_level2[]; | |
#define NELEMS(arr) (sizeof (arr) / sizeof (arr[0])) | |
static inline uint32_t | |
__attribute ((always_inline)) | |
jisx0213_to_ucs4 (unsigned int row, unsigned int col) | |
{ | |
uint32_t val; | |
if (row >= 0x121 && row <= 0x17e) | |
row -= 289; | |
else if (row == 0x221) | |
row -= 451; | |
else if (row >= 0x223 && row <= 0x225) | |
row -= 452; | |
else if (row == 0x228) | |
row -= 454; | |
else if (row >= 0x22c && row <= 0x22f) | |
row -= 457; | |
else if (row >= 0x26e && row <= 0x27e) | |
row -= 519; | |
else | |
return 0x0000; | |
if (col >= 0x21 && col <= 0x7e) | |
col -= 0x21; | |
else | |
return 0x0000; | |
val = __jisx0213_to_ucs_main[row * 94 + col]; | |
val = __jisx0213_to_ucs_pagestart[val >> 8] + (val & 0xff); | |
if (val == 0xfffd) | |
val = 0x0000; | |
return val; | |
} | |
static inline uint16_t | |
__attribute ((always_inline)) | |
ucs4_to_jisx0213 (uint32_t ucs) | |
{ | |
if (ucs < NELEMS (__jisx0213_from_ucs_level1) << 6) | |
{ | |
int index1 = __jisx0213_from_ucs_level1[ucs >> 6]; | |
if (index1 >= 0) | |
return __jisx0213_from_ucs_level2[(index1 << 6) + (ucs & 0x3f)]; | |
} | |
return 0x0000; | |
} | |
static inline int | |
__attribute ((always_inline)) | |
jisx0213_added_in_2004_p (uint16_t val) | |
{ | |
/* From JISX 0213:2000 to JISX 0213:2004, 10 characters were added to | |
plane 1, and plane 2 was left unchanged. See ISO-IR-233. */ | |
switch (val >> 8) | |
{ | |
case 0x2e: | |
return val == 0x2e21; | |
case 0x2f: | |
return val == 0x2f7e; | |
case 0x4f: | |
return val == 0x4f54 || val == 0x4f7e; | |
case 0x74: | |
return val == 0x7427; | |
case 0x7e: | |
return val >= 0x7e7a && val <= 0x7e7e; | |
default: | |
return 0; | |
} | |
} | |
#endif /* _JISX0213_H */ |