| /* |

| * Copyright (C) 1999-2001, 2016 Free Software Foundation, Inc. |

| * This file is part of the GNU LIBICONV Library. |

| * |

| * The GNU LIBICONV 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 LIBICONV 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 LIBICONV Library; see the file COPYING.LIB. |

| * If not, see <https://www.gnu.org/licenses/>. |

| */ |

| |

| /* |

| * CNS 11643-1992 plane 4 |

| */ |

| |

| /* |

| * The table has been split into two parts. Each part's entries fit it 16 bits. |

| * But the combined table would need 17 bits per entry. |

| */ |

| #include "cns11643_4a.h" |

| #include "cns11643_4b.h" |

| |

| static int |

| cns11643_4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n) |

| { |

| unsigned char c1 = s[0]; |

| if ((c1 >= 0x21 && c1 <= 0x6e)) { |

| if (n >= 2) { |

| unsigned char c2 = s[1]; |

| if (c2 >= 0x21 && c2 < 0x7f) { |

| unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21); |

| ucs4_t wc = 0xfffd; |

| unsigned short swc; |

| { |

| if (i < 2914) |

| swc = cns11643_4a_2uni_page21[i], |

| wc = cns11643_4a_2uni_upages[swc>>8] | (swc & 0xff); |

| else if (i < 7298) |

| swc = cns11643_4b_2uni_page40[i-2914], |

| wc = cns11643_4b_2uni_upages[swc>>8] | (swc & 0xff); |

| } |

| if (wc != 0xfffd) { |

| *pwc = wc; |

| return 2; |

| } |

| } |

| return RET_ILSEQ; |

| } |

| return RET_TOOFEW(0); |

| } |

| return RET_ILSEQ; |

| } |