/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks. Copyright (C) 2002-2014 by Jin-Hwan Cho and Shunsaku Hirata, the dvipdfmx project team. Copyright (C) 1998, 1999 by Mark A. Wicks This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ /* * Unicode related: * Conversion between UTF-* and UCS-*. * ToUnicode CMap * * Normalization? */ #ifdef HAVE_CONFIG_H #include #endif #include #include "system.h" #include "mem.h" #include "error.h" #include "unicode.h" static int __verbose = 0; #define UC_DEBUG 3 #define UC_DEBUG_STR "UC" void UC_set_verbose (void) { __verbose++; } #define UC_REPLACEMENT_CHAR 0x0000FFFDL #define UC_SUR_SHIFT 10 #define UC_SUR_MASK 0x3FFUL #define UC_SUR_LOW_START 0xDC00UL #define UC_SUR_HIGH_START 0xD800UL int UC_sput_UTF16BE (long ucv, unsigned char **pp, unsigned char *limptr) { int count = 0; unsigned char *p = *pp; if (ucv >= 0 && ucv <= 0xFFFF) { if (p + 2 >= limptr) ERROR("Not enough space available..."); p[0] = (ucv >> 8) & 0xff; p[1] = ucv & 0xff; count = 2; } else if (ucv >= 0x010000L && ucv <= 0x10FFFFL) { unsigned short high, low; if (p + 4 >= limptr) ERROR("Not enough space available..."); ucv -= 0x00010000L; high = (ucv >> UC_SUR_SHIFT) + UC_SUR_HIGH_START; low = (ucv & UC_SUR_MASK) + UC_SUR_LOW_START; p[0] = (high >> 8) & 0xff; p[1] = (high & 0xff); p[2] = (low >> 8) & 0xff; p[3] = (low & 0xff); count = 4; } else { if (p + 2 >= limptr) ERROR("Not enough space available..."); p[0] = (UC_REPLACEMENT_CHAR >> 8) & 0xff; p[1] = (UC_REPLACEMENT_CHAR & 0xff); count = 2; } *pp += count; return count; } int UC_is_valid (long ucv) { if (ucv < 0 || (ucv >= 0x0000D800L && ucv <= 0x0000DFFFL)) return 0; return 1; }