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FLTK 1.3.2
tis620.h
00001 /* $XFree86: xc/lib/X11/lcUniConv/tis620.h,v 1.4 2001/02/09 00:02:54 dawes Exp $ */
00002 
00003 /*
00004  * TIS620-0
00005  */
00006 
00007 static const unsigned short tis620_2uni[96] = {
00008   /* 0xa0 */
00009   0xfffd, 0x0e01, 0x0e02, 0x0e03, 0x0e04, 0x0e05, 0x0e06, 0x0e07,
00010   0x0e08, 0x0e09, 0x0e0a, 0x0e0b, 0x0e0c, 0x0e0d, 0x0e0e, 0x0e0f,
00011   /* 0xb0 */
00012   0x0e10, 0x0e11, 0x0e12, 0x0e13, 0x0e14, 0x0e15, 0x0e16, 0x0e17,
00013   0x0e18, 0x0e19, 0x0e1a, 0x0e1b, 0x0e1c, 0x0e1d, 0x0e1e, 0x0e1f,
00014   /* 0xc0 */
00015   0x0e20, 0x0e21, 0x0e22, 0x0e23, 0x0e24, 0x0e25, 0x0e26, 0x0e27,
00016   0x0e28, 0x0e29, 0x0e2a, 0x0e2b, 0x0e2c, 0x0e2d, 0x0e2e, 0x0e2f,
00017   /* 0xd0 */
00018   0x0e30, 0x0e31, 0x0e32, 0x0e33, 0x0e34, 0x0e35, 0x0e36, 0x0e37,
00019   0x0e38, 0x0e39, 0x0e3a, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x0e3f,
00020   /* 0xe0 */
00021   0x0e40, 0x0e41, 0x0e42, 0x0e43, 0x0e44, 0x0e45, 0x0e46, 0x0e47,
00022   0x0e48, 0x0e49, 0x0e4a, 0x0e4b, 0x0e4c, 0x0e4d, 0x0e4e, 0x0e4f,
00023   /* 0xf0 */
00024   0x0e50, 0x0e51, 0x0e52, 0x0e53, 0x0e54, 0x0e55, 0x0e56, 0x0e57,
00025   0x0e58, 0x0e59, 0x0e5a, 0x0e5b, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
00026 };
00027 
00028 static int
00029 tis620_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
00030 {
00031   unsigned char c = *s;
00032   if (c < 0x80) {
00033     *pwc = (ucs4_t) c;
00034     return 1;
00035   }
00036   else if (c < 0xa0) {
00037   }
00038   else {
00039     unsigned short wc = tis620_2uni[c-0xa0];
00040     if (wc != 0xfffd) {
00041       *pwc = (ucs4_t) wc;
00042       return 1;
00043     }
00044   }
00045   return RET_ILSEQ;
00046 }
00047 
00048 static const unsigned char tis620_page0e[96] = {
00049   0x00, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x00-0x07 */
00050   0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x08-0x0f */
00051   0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x10-0x17 */
00052   0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0x18-0x1f */
00053   0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
00054   0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
00055   0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
00056   0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0x38-0x3f */
00057   0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
00058   0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
00059   0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x50-0x57 */
00060   0xf8, 0xf9, 0xfa, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
00061 };
00062 
00063 static int
00064 tis620_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
00065 {
00066   unsigned char c = 0;
00067   if (wc < 0x0080) {
00068     *r = wc;
00069     return 1;
00070   }
00071   else if (wc >= 0x0e00 && wc < 0x0e60)
00072     c = tis620_page0e[wc-0x0e00];
00073   if (c != 0) {
00074     *r = c;
00075     return 1;
00076   }
00077   return RET_ILSEQ;
00078 }