1 /* -*- buffer-read-only: t -*- vi: set ro: */ 2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ 3 /* Store a character in UTF-8 string. 4 Copyright (C) 2002, 2005-2006, 2009-2011 Free Software Foundation, Inc. 5 Written by Bruno Haible <bruno@clisp.org>, 2002. 6 7 This program is free software: you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published 9 by the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #include <config.h> 21 22 #if defined IN_LIBUNISTRING 23 /* Tell unistr.h to declare u8_uctomb as 'extern', not 'static inline'. */ 24 # include "unistring-notinline.h" 25 #endif 26 27 /* Specification. */ 28 #include "unistr.h" 29 30 #if !HAVE_INLINE 31 32 int 33 u8_uctomb (uint8_t *s, ucs4_t uc, int n) 34 { 35 if (uc < 0x80) 36 { 37 if (n > 0) 38 { 39 s[0] = uc; 40 return 1; 41 } 42 /* else return -2, below. */ 43 } 44 else 45 { 46 int count; 47 48 if (uc < 0x800) 49 count = 2; 50 else if (uc < 0x10000) 51 { 52 if (uc < 0xd800 || uc >= 0xe000) 53 count = 3; 54 else 55 return -1; 56 } 57 #if 0 58 else if (uc < 0x200000) 59 count = 4; 60 else if (uc < 0x4000000) 61 count = 5; 62 else if (uc <= 0x7fffffff) 63 count = 6; 64 #else 65 else if (uc < 0x110000) 66 count = 4; 67 #endif 68 else 69 return -1; 70 71 if (n >= count) 72 { 73 switch (count) /* note: code falls through cases! */ 74 { 75 #if 0 76 case 6: s[5] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x4000000; 77 case 5: s[4] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x200000; 78 #endif 79 case 4: s[3] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x10000; 80 case 3: s[2] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x800; 81 case 2: s[1] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0xc0; 82 /*case 1:*/ s[0] = uc; 83 } 84 return count; 85 } 86 } 87 return -2; 88 } 89 90 #endif 91