+++ /dev/null
-/* Conversion UCS-4 to UTF-8.
- Copyright (C) 2002, 2006-2007 Free Software Foundation, Inc.
- Written by Bruno Haible <bruno@clisp.org>, 2002.
-
- This program 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, or (at your option)
- any later version.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- USA. */
-
-#include <config.h>
-
-/* Specification. */
-#include "unistr.h"
-
-int
-u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n)
-{
- int count;
-
- if (uc < 0x80)
- /* The case n >= 1 is already handled by the caller. */
- return -2;
- else if (uc < 0x800)
- count = 2;
- else if (uc < 0x10000)
- {
- if (uc < 0xd800 || uc >= 0xe000)
- count = 3;
- else
- return -1;
- }
-#if 0
- else if (uc < 0x200000)
- count = 4;
- else if (uc < 0x4000000)
- count = 5;
- else if (uc <= 0x7fffffff)
- count = 6;
-#else
- else if (uc < 0x110000)
- count = 4;
-#endif
- else
- return -1;
-
- if (n < count)
- return -2;
-
- switch (count) /* note: code falls through cases! */
- {
-#if 0
- case 6: s[5] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x4000000;
- case 5: s[4] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x200000;
-#endif
- case 4: s[3] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x10000;
- case 3: s[2] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x800;
- case 2: s[1] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0xc0;
- /*case 1:*/ s[0] = uc;
- }
- return count;
-}