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authorFrank Dischner <phaedrus961@rockbox.org>2006-03-29 16:21:42 +0000
committerFrank Dischner <phaedrus961@rockbox.org>2006-03-29 16:21:42 +0000
commit75c3d0b9f10ea30b827052b7a6f894734e705c4f (patch)
treeec6bfd1a7f7812bf1d7523b597bada006646cb82 /firmware/hangul.c
parent0fec4711d5ba5fff1b321568fb45651e11d79b08 (diff)
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Add support for loadable vkeyboard layouts
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9347 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/hangul.c')
-rw-r--r--firmware/hangul.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/firmware/hangul.c b/firmware/hangul.c
new file mode 100644
index 0000000000..27123ccb64
--- /dev/null
+++ b/firmware/hangul.c
@@ -0,0 +1,101 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ *
+ *
+ * Copyright (C) 2006 by Frank Dischner
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "hangul.h"
+
+const char jamo_table[51][3] = {
+ { 1, 0, 1},
+ { 2, 0, 2},
+ { 0, 0, 3},
+ { 3, 0, 4},
+ { 0, 0, 5},
+ { 0, 0, 6},
+ { 4, 0, 7},
+ { 5, 0, 0},
+ { 6, 0, 8},
+ { 0, 0, 9},
+ { 0, 0, 10},
+ { 0, 0, 11},
+ { 0, 0, 12},
+ { 0, 0, 13},
+ { 0, 0, 14},
+ { 0, 0, 15},
+ { 7, 0, 16},
+ { 8, 0, 17},
+ { 9, 0, 0},
+ { 0, 0, 18},
+ {10, 0, 19},
+ {11, 0, 20},
+ {12, 0, 21},
+ {13, 0, 22},
+ {14, 0, 0},
+ {15, 0, 23},
+ {16, 0, 24},
+ {17, 0, 25},
+ {18, 0, 26},
+ {19, 0, 27},
+ { 0, 1, 0},
+ { 0, 2, 0},
+ { 0, 3, 0},
+ { 0, 4, 0},
+ { 0, 5, 0},
+ { 0, 6, 0},
+ { 0, 7, 0},
+ { 0, 8, 0},
+ { 0, 9, 0},
+ { 0, 10, 0},
+ { 0, 11, 0},
+ { 0, 12, 0},
+ { 0, 13, 0},
+ { 0, 14, 0},
+ { 0, 15, 0},
+ { 0, 16, 0},
+ { 0, 17, 0},
+ { 0, 18, 0},
+ { 0, 19, 0},
+ { 0, 20, 0},
+ { 0, 21, 0},
+};
+
+/* takes three jamo chars and joins them into one hangul */
+unsigned short hangul_join(unsigned short lead, unsigned short vowel,
+ unsigned short tail)
+{
+ unsigned short ch = 0xfffd;
+
+ if (lead < 0x3131 || lead > 0x3163)
+ return ch;
+ lead = jamo_table[lead-0x3131][0];
+
+ if (vowel < 0x3131 || vowel > 0x3163)
+ return ch;
+ vowel = jamo_table[vowel-0x3131][1];
+
+ if (tail) {
+ if (tail < 0x3131 || tail > 0x3163)
+ return ch;
+ tail = jamo_table[tail-0x3131][2];
+ if (!tail)
+ return ch;
+ }
+
+ if (lead && vowel)
+ ch = tail + (vowel - 1)*28 + (lead - 1)*588 + 44032;
+
+ return ch;
+}