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/*
* The authors of this software are Rob Pike and Ken Thompson.
* Copyright (c) 2002 by Lucent Technologies.
* Permission to use, copy, modify, and distribute this software for any
* purpose without fee is hereby granted, provided that this entire notice
* is included in all copies of any software which is or includes a copy
* or modification of this software and in all copies of the supporting
* documentation for such software.
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
* OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
*/
#include "utf.h"
#include "utfdef.h"
static
Rune*
rbsearch(Rune c, Rune *t, int n, int ne)
{
Rune *p;
int m;
while(n > 1) {
m = n >> 1;
p = t + m*ne;
if(c >= p[0]) {
t = p;
n = n-m;
} else
n = m;
}
if(n && c >= t[0])
return t;
return 0;
}
/*
* The "ideographic" property is hard to extract from UnicodeData.txt,
* so it is hard coded here.
*
* It is defined in the Unicode PropList.txt file, for example
* PropList-3.0.0.txt. Unlike the UnicodeData.txt file, the format of
* PropList changes between versions. This property appears relatively static;
* it is the same in version 4.0.1, except that version defines some >16 bit
* chars as ideographic as well: 20000..2a6d6, and 2f800..2Fa1d.
*/
static Rune __isideographicr[] = {
0x3006, 0x3007, /* 0x3006 added in 2.0.14 */
0x3021, 0x3029,
0x3038, 0x303a, /* added in 3.0.0 */
0x3400, 0x4db5, /* added in 3.0.0 */
/* consecutive */
0x4e00, 0x9fa5,
0x9fa6, 0x9fbb, /* added in 4.1.0 */
0x9fbc, 0x9fc3, /* added in 5.1.0 */
0x9fc4, 0x9fcb, /* added in 5.2.0 */
0xf900, 0xfa2d,
/* consecutive */
0xfa30, 0xfa6a, /* added in 5.1.0 */
0xfa6b, 0xfa6d, /* added in 5.2.0 */
0xfa70, 0xfad9, /* added in 4.1.0 */
0x20000, 0x2a6d6, /* added in 3.1.0 */
0x2a700, 0x2b734, /* added in 5.2.0 */
0x2f800, 0x2fa1d, /* added in 3.1.0 */
};
int
isideographicrune(Rune c)
{
Rune *p;
p = rbsearch(c, __isideographicr, nelem(__isideographicr)/2, 2);
if(p && c >= p[0] && c <= p[1])
return 1;
return 0;
}
#include "runetypebody-5.2.0.c"
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