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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [iconvdata/] [jis0212.h] - Rev 318
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/* Access functions for JISX0212 conversion. Copyright (C) 1997, 1998, 1999 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _JIS0212_H #define _JIS0212_H 1 #include <gconv.h> #include <stdint.h> /* Struct for table with indeces in mapping table. */ struct jisx0212_idx { uint16_t start; uint16_t end; uint16_t idx; }; /* Conversion table. */ extern const struct jisx0212_idx __jisx0212_to_ucs_idx[]; extern const uint16_t __jisx0212_to_ucs[]; extern const struct jisx0212_idx __jisx0212_from_ucs_idx[]; extern const char __jisx0212_from_ucs[][2]; static inline uint32_t jisx0212_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset) { const struct jisx0212_idx *rp = __jisx0212_to_ucs_idx; unsigned char ch = *(*s); unsigned char ch2; uint32_t wch = 0; int idx; if (ch < offset || (ch - offset) < 0x22 || (ch - offset) > 0x6d) return __UNKNOWN_10646_CHAR; if (avail < 2) return 0; ch2 = (*s)[1]; if (ch2 < offset || (ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f) return __UNKNOWN_10646_CHAR; idx = (ch - offset - 0x21) * 94 + (ch2 - offset - 0x21); while (idx > rp->end) ++rp; if (idx >= rp->start) wch = __jisx0212_to_ucs[rp->idx + idx - rp->start]; if (wch != L'\0') (*s) += 2; else wch = __UNKNOWN_10646_CHAR; return wch; } static inline size_t ucs4_to_jisx0212 (uint32_t wch, char *s, size_t avail) { const struct jisx0212_idx *rp = __jisx0212_from_ucs_idx; unsigned int ch = (unsigned int) wch; const char *cp; if (ch >= 0xffff) return __UNKNOWN_10646_CHAR; while (ch > rp->end) ++rp; if (ch >= rp->start) cp = __jisx0212_from_ucs[rp->idx + ch - rp->start]; else return __UNKNOWN_10646_CHAR; if (cp[0] == '\0') return __UNKNOWN_10646_CHAR; s[0] = cp[0]; if (cp[1] != '\0') { if (avail < 2) return 0; s[1] = cp[1]; } return 2; } #endif /* jis0212.h */
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