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30891f35fa
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/* Functions for JISX0213 conversion.
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Copyright (C) 2002-2021 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, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _JISX0213_H
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#define _JISX0213_H 1
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#include <stdint.h>
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extern const uint16_t __jisx0213_to_ucs_combining[][2];
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extern const uint16_t __jisx0213_to_ucs_main[120 * 94];
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extern const uint32_t __jisx0213_to_ucs_pagestart[];
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extern const int16_t __jisx0213_from_ucs_level1[2715];
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extern const uint16_t __jisx0213_from_ucs_level2[];
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#define NELEMS(arr) (sizeof (arr) / sizeof (arr[0]))
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static inline uint32_t
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__attribute ((always_inline))
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jisx0213_to_ucs4 (unsigned int row, unsigned int col)
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{
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uint32_t val;
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if (row >= 0x121 && row <= 0x17e)
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row -= 289;
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else if (row == 0x221)
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row -= 451;
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else if (row >= 0x223 && row <= 0x225)
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row -= 452;
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else if (row == 0x228)
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row -= 454;
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else if (row >= 0x22c && row <= 0x22f)
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row -= 457;
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else if (row >= 0x26e && row <= 0x27e)
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row -= 519;
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else
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return 0x0000;
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if (col >= 0x21 && col <= 0x7e)
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col -= 0x21;
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else
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return 0x0000;
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val = __jisx0213_to_ucs_main[row * 94 + col];
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val = __jisx0213_to_ucs_pagestart[val >> 8] + (val & 0xff);
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if (val == 0xfffd)
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val = 0x0000;
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return val;
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}
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static inline uint16_t
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__attribute ((always_inline))
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ucs4_to_jisx0213 (uint32_t ucs)
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{
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if (ucs < NELEMS (__jisx0213_from_ucs_level1) << 6)
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{
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int index1 = __jisx0213_from_ucs_level1[ucs >> 6];
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if (index1 >= 0)
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return __jisx0213_from_ucs_level2[(index1 << 6) + (ucs & 0x3f)];
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}
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return 0x0000;
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}
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static inline int
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__attribute ((always_inline))
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jisx0213_added_in_2004_p (uint16_t val)
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{
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/* From JISX 0213:2000 to JISX 0213:2004, 10 characters were added to
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plane 1, and plane 2 was left unchanged. See ISO-IR-233. */
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switch (val >> 8)
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{
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case 0x2e:
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return val == 0x2e21;
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case 0x2f:
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return val == 0x2f7e;
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case 0x4f:
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return val == 0x4f54 || val == 0x4f7e;
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case 0x74:
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return val == 0x7427;
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case 0x7e:
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return val >= 0x7e7a && val <= 0x7e7e;
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default:
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return 0;
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}
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}
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#endif /* _JISX0213_H */
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