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/* libhangul
* Copyright (C) 2004,2005 Choe Hwanjin
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wchar.h>
#include "hangul.h"
bool
hangul_is_choseong(ucschar c)
{
return c >= 0x1100 && c <= 0x1159;
}
bool
hangul_is_jungseong(ucschar c)
{
return c >= 0x1161 && c <= 0x11a2;
}
bool
hangul_is_jongseong(ucschar c)
{
return c >= 0x11a8 && c <= 0x11f9;
}
bool
hangul_is_choseong_conjoinable(ucschar c)
{
return c >= 0x1100 && c <= 0x1112;
}
bool
hangul_is_jungseong_conjoinable(ucschar c)
{
return c >= 0x1161 && c <= 0x1175;
}
bool
hangul_is_jongseong_conjoinable(ucschar c)
{
return c >= 0x11a7 && c <= 0x11c2;
}
bool
hangul_is_syllable(ucschar c)
{
return c >= 0xac00 && c <= 0xd7a3;
}
bool
hangul_is_jaso(ucschar c)
{
return hangul_is_choseong(c) ||
hangul_is_jungseong(c) ||
hangul_is_jongseong(c);
}
bool
hangul_is_jamo(ucschar c)
{
return c >= 0x3131 && c <= 0x318e;
}
ucschar
hangul_choseong_to_jamo(ucschar ch)
{
static ucschar table[] = {
0x3131, /* 0x1100 */
0x3132, /* 0x1101 */
0x3134, /* 0x1102 */
0x3137, /* 0x1103 */
0x3138, /* 0x1104 */
0x3139, /* 0x1105 */
0x3141, /* 0x1106 */
0x3142, /* 0x1107 */
0x3143, /* 0x1108 */
0x3145, /* 0x1109 */
0x3146, /* 0x110a */
0x3147, /* 0x110b */
0x3148, /* 0x110c */
0x3149, /* 0x110d */
0x314a, /* 0x110e */
0x314b, /* 0x110f */
0x314c, /* 0x1110 */
0x314d, /* 0x1111 */
0x314e, /* 0x1112 */
};
if (ch < 0x1100 || ch > 0x1112)
return ch;
return table[ch - 0x1100];
}
ucschar
hangul_jungseong_to_jamo(ucschar ch)
{
static ucschar table[] = {
0x314f, /* 0x1161 */
0x3150, /* 0x1162 */
0x3151, /* 0x1163 */
0x3152, /* 0x1164 */
0x3153, /* 0x1165 */
0x3154, /* 0x1166 */
0x3155, /* 0x1167 */
0x3156, /* 0x1168 */
0x3157, /* 0x1169 */
0x3158, /* 0x116a */
0x3159, /* 0x116b */
0x315a, /* 0x116c */
0x315b, /* 0x116d */
0x315c, /* 0x116e */
0x315d, /* 0x116f */
0x315e, /* 0x1170 */
0x315f, /* 0x1171 */
0x3160, /* 0x1172 */
0x3161, /* 0x1173 */
0x3162, /* 0x1174 */
0x3163 /* 0x1175 */
};
if (ch < 0x1161 || ch > 0x1175)
return 0;
return table[ch - 0x1161];
}
ucschar
hangul_jongseong_to_jamo(ucschar ch)
{
static ucschar table[] = {
0x3131, /* 0x11a8 */
0x3132, /* 0x11a9 */
0x3133, /* 0x11aa */
0x3134, /* 0x11ab */
0x3135, /* 0x11ac */
0x3136, /* 0x11ad */
0x3137, /* 0x11ae */
0x3139, /* 0x11af */
0x313a, /* 0x11b0 */
0x313b, /* 0x11b1 */
0x313c, /* 0x11b2 */
0x313d, /* 0x11b3 */
0x313e, /* 0x11b4 */
0x313f, /* 0x11b5 */
0x3140, /* 0x11b6 */
0x3141, /* 0x11b7 */
0x3142, /* 0x11b8 */
0x3144, /* 0x11b9 */
0x3145, /* 0x11ba */
0x3146, /* 0x11bb */
0x3147, /* 0x11bc */
0x3148, /* 0x11bd */
0x314a, /* 0x11be */
0x314b, /* 0x11bf */
0x314c, /* 0x11c0 */
0x314d, /* 0x11c1 */
0x314e /* 0x11c2 */
};
if (ch < 0x11a8 || ch > 0x11c2)
return 0;
return table[ch - 0x11a8];
}
ucschar
hangul_choseong_to_jongseong(ucschar ch)
{
static ucschar table[] = {
0x11a8, /* choseong kiyeok -> jongseong kiyeok */
0x11a9, /* choseong ssangkiyeok -> jongseong ssangkiyeok */
0x11ab, /* choseong nieun -> jongseong nieun */
0x11ae, /* choseong tikeut -> jongseong tikeut */
0x0, /* choseong ssangtikeut -> jongseong tikeut */
0x11af, /* choseong rieul -> jongseong rieul */
0x11b7, /* choseong mieum -> jongseong mieum */
0x11b8, /* choseong pieup -> jongseong pieup */
0x0, /* choseong ssangpieup -> jongseong pieup */
0x11ba, /* choseong sios -> jongseong sios */
0x11bb, /* choseong ssangsios -> jongseong ssangsios */
0x11bc, /* choseong ieung -> jongseong ieung */
0x11bd, /* choseong cieuc -> jongseong cieuc */
0x0, /* choseong ssangcieuc -> jongseong cieuc */
0x11be, /* choseong chieuch -> jongseong chieuch */
0x11bf, /* choseong khieukh -> jongseong khieukh */
0x11c0, /* choseong thieuth -> jongseong thieuth */
0x11c1, /* choseong phieuph -> jongseong phieuph */
0x11c2 /* choseong hieuh -> jongseong hieuh */
};
if (ch < 0x1100 || ch > 0x1112)
return 0;
return table[ch - 0x1100];
}
ucschar
hangul_jongseong_to_choseong(ucschar ch)
{
static ucschar table[] = {
0x1100, /* jongseong kiyeok -> choseong kiyeok */
0x1101, /* jongseong ssangkiyeok -> choseong ssangkiyeok */
0x1109, /* jongseong kiyeok-sios -> choseong sios */
0x1102, /* jongseong nieun -> choseong nieun */
0x110c, /* jongseong nieun-cieuc -> choseong cieuc */
0x1112, /* jongseong nieun-hieuh -> choseong hieuh */
0x1103, /* jongseong tikeut -> choseong tikeut */
0x1105, /* jongseong rieul -> choseong rieul */
0x1100, /* jongseong rieul-kiyeok -> choseong kiyeok */
0x1106, /* jongseong rieul-mieum -> choseong mieum */
0x1107, /* jongseong rieul-pieup -> choseong pieup */
0x1109, /* jongseong rieul-sios -> choseong sios */
0x1110, /* jongseong rieul-thieuth -> choseong thieuth */
0x1111, /* jongseong rieul-phieuph -> choseong phieuph */
0x1112, /* jongseong rieul-hieuh -> choseong hieuh */
0x1106, /* jongseong mieum -> choseong mieum */
0x1107, /* jongseong pieup -> choseong pieup */
0x1109, /* jongseong pieup-sios -> choseong sios */
0x1109, /* jongseong sios -> choseong sios */
0x110a, /* jongseong ssangsios -> choseong ssangsios */
0x110b, /* jongseong ieung -> choseong ieung */
0x110c, /* jongseong cieuc -> choseong cieuc */
0x110e, /* jongseong chieuch -> choseong chieuch */
0x110f, /* jongseong khieukh -> choseong khieukh */
0x1110, /* jongseong thieuth -> choseong thieuth */
0x1111, /* jongseong phieuph -> choseong phieuph */
0x1112 /* jongseong hieuh -> choseong hieuh */
};
if (ch < 0x11a8 || ch > 0x11c2)
return 0;
return table[ch - 0x11a8];
}
void
hangul_jongseong_dicompose(ucschar ch, ucschar* jong, ucschar* cho)
{
static ucschar table[][2] = {
{ 0, 0x1100 }, /* jong kiyeok = cho kiyeok */
{ 0x11a8, 0x1100 }, /* jong ssangkiyeok = jong kiyeok + cho kiyeok */
{ 0x11a8, 0x1109 }, /* jong kiyeok-sios = jong kiyeok + cho sios */
{ 0, 0x1102 }, /* jong nieun = cho nieun */
{ 0x11ab, 0x110c }, /* jong nieun-cieuc = jong nieun + cho cieuc */
{ 0x11ab, 0x1112 }, /* jong nieun-hieuh = jong nieun + cho hieuh */
{ 0, 0x1103 }, /* jong tikeut = cho tikeut */
{ 0, 0x1105 }, /* jong rieul = cho rieul */
{ 0x11af, 0x1100 }, /* jong rieul-kiyeok = jong rieul + cho kiyeok */
{ 0x11af, 0x1106 }, /* jong rieul-mieum = jong rieul + cho mieum */
{ 0x11af, 0x1107 }, /* jong rieul-pieup = jong rieul + cho pieup */
{ 0x11af, 0x1109 }, /* jong rieul-sios = jong rieul + cho sios */
{ 0x11af, 0x1110 }, /* jong rieul-thieuth = jong rieul + cho thieuth */
{ 0x11af, 0x1111 }, /* jong rieul-phieuph = jong rieul + cho phieuph */
{ 0x11af, 0x1112 }, /* jong rieul-hieuh = jong rieul + cho hieuh */
{ 0, 0x1106 }, /* jong mieum = cho mieum */
{ 0, 0x1107 }, /* jong pieup = cho pieup */
{ 0x11b8, 0x1109 }, /* jong pieup-sios = jong pieup + cho sios */
{ 0, 0x1109 }, /* jong sios = cho sios */
{ 0x11ba, 0x1109 }, /* jong ssangsios = jong sios + cho sios */
{ 0, 0x110b }, /* jong ieung = cho ieung */
{ 0, 0x110c }, /* jong cieuc = cho cieuc */
{ 0, 0x110e }, /* jong chieuch = cho chieuch */
{ 0, 0x110f }, /* jong khieukh = cho khieukh */
{ 0, 0x1110 }, /* jong thieuth = cho thieuth */
{ 0, 0x1111 }, /* jong phieuph = cho phieuph */
{ 0, 0x1112 } /* jong hieuh = cho hieuh */
};
*jong = table[ch - 0x11a8][0];
*cho = table[ch - 0x11a8][1];
}
ucschar
hangul_jaso_to_syllable(ucschar choseong, ucschar jungseong, ucschar jongseong)
{
static const ucschar hangul_base = 0xac00;
static const ucschar choseong_base = 0x1100;
static const ucschar jungseong_base = 0x1161;
static const ucschar jongseong_base = 0x11a7;
static const int njungseong = 21;
static const int njongseong = 28;
ucschar ch;
/* we use 0x11a7 like a Jongseong filler */
if (jongseong == 0)
jongseong = 0x11a7; /* Jongseong filler */
if (!hangul_is_choseong_conjoinable(choseong))
return 0;
if (!hangul_is_jungseong_conjoinable(jungseong))
return 0;
if (!hangul_is_jongseong_conjoinable(jongseong))
return 0;
choseong -= choseong_base;
jungseong -= jungseong_base;
jongseong -= jongseong_base;
ch = ((choseong * njungseong) + jungseong) * njongseong + jongseong
+ hangul_base;
return ch;
}
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