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-rw-r--r--iconvdata/jis0208.h104
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diff --git a/iconvdata/jis0208.h b/iconvdata/jis0208.h
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+/* Access functions for JISX0208 conversion.
+ Copyright (C) 1997 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _JIS0208_H
+#define _JIS0208_H 1
+
+#include <gconv.h>
+#include <inttypes.h>
+
+/* Conversion table. */
+extern const uint16_t jis0208_to_ucs[];
+
+extern const char jisx0208_from_ucs4_lat1[256][2];
+extern const char jisx0208_from_ucs4_greek[0xc1][2];
+extern const struct jisx0208_ucs_idx jisx0208_from_ucs_idx[];
+extern const char jisx0208_from_ucs_tab[][2];
+
+
+/* Struct for table with indeces in UCS mapping table. */
+struct jisx0208_ucs_idx
+{
+ uint16_t start;
+ uint16_t end;
+ uint16_t idx;
+};
+
+
+static inline wchar_t
+jisx0208_to_ucs4 (char **s, size_t avail)
+{
+ unsigned char ch = *(*s);
+ unsigned char ch2;
+ int idx;
+
+ if (ch <= 0x20 || ch > 0xea)
+ return UNKNOWN_10646_CHAR;
+
+ if (avail < 2)
+ return 0;
+
+ ch2 = (*s)[1];
+ if (ch2 <= 0x20 || ch2 >= 0x7f)
+ return UNKNOWN_10646_CHAR;
+
+ idx = (ch - 0x21) * 94 + (ch2 - 0x21);
+ if (idx >= 0x1e80)
+ return UNKNOWN_10646_CHAR;
+
+ (*s) += 2;
+
+ return jis0208_to_ucs[idx] ?: ((*s) -= 2, UNKNOWN_10646_CHAR);
+}
+
+
+static inline size_t
+ucs4_to_jisx0208 (wchar_t wch, char **s, size_t avail)
+{
+ unsigned int ch = (unsigned int) wch;
+ const char *cp = NULL;
+
+ if (avail < 2)
+ return 0;
+
+ if (ch < 0x100)
+ cp = jisx0208_from_ucs4_lat1[ch];
+ else if (ch >= 0x391 && ch <= 0x451)
+ cp = jisx0208_from_ucs4_greek[ch];
+ else
+ {
+ const struct jisx0208_ucs_idx *rp = jisx0208_from_ucs_idx;
+
+ while (ch > rp->end)
+ ++rp;
+ if (ch >= rp->start)
+ cp = jisx0208_from_ucs_tab[rp->idx + ch - rp->start];
+ }
+
+ if (cp == NULL || cp[0] == '\0')
+ return UNKNOWN_10646_CHAR;
+
+ *(*s)++ = cp[0];
+ *(*s)++ = cp[1];
+
+ return 2;
+}
+
+#endif /* jis0208.h */