Initial revision

1 files changed, 184 insertions, 0 deletions

diff --git a/loader/kon2/lib/coding.c b/loader/kon2/lib/coding.c
new file mode 100644
index 000000000..ae1a1c5a8
--- /dev/null
+++ b/loader/kon2/lib/coding.c
@@ -0,0 +1,184 @@
+/*
+ * KON2 - Kanji ON Console -
+ * Copyright (C) 1992-1996 Takashi MANABE (manabe@papilio.tutics.tut.ac.jp)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY TAKASHI MANABE ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE TERRENCE R. LAMBERT BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ */
+
+#include	<config.h>
+
+#include	<stdio.h>
+#include	<errno.h>
+#include	<string.h>
+
+#include	<interface.h>
+#include	<fnld.h>
+
+static u_int JISX0208(u_char ch1, u_char ch2)
+{
+    if (ch1 > 0x2A)
+	return((ch2 - 0x41 + (ch1 - 0x26) * 96) << 5);
+    else
+	return((ch2 - 0x21 + (ch1 - 0x21) * 96) << 5);
+}
+
+#ifdef	MINI_KON
+
+#define	GB2312	NULL
+#define	BIG5	NULL
+#define	KSC5601	NULL
+
+#else
+
+static u_int GB2312(u_char ch1, u_char ch2)
+{
+    if (ch1 > 0x29)
+	return(((ch1 - 0x27) * 94 + ch2 - 0x21) << 5);
+    else
+	return(((ch1 - 0x21) * 94 + ch2 - 0x21) << 5);
+}
+
+static u_int BIG5(u_char ch1, u_char ch2)
+{
+    if (ch2 < 0xA1)
+	return(((ch1 - 0xA1) * 157 + ch2 - 0x40) << 5);
+    else
+	return(((ch1 - 0xA1) * 157 + 63 + ch2 - 0xA1) << 5);
+}
+
+static u_int KSC5601(u_char ch1, u_char ch2)
+{
+    if (ch1 > 0x2D)
+	return((ch2 - 0x21 + (ch1 - 0x24) * 96) << 5);
+    else
+	return((ch2 - 0x21 + (ch1 - 0x21) * 96) << 5);
+}
+
+#endif
+
+static u_int FldJISX0208(u_char ch1, u_char ch2)
+{
+    return(JISX0208(ch1&0x7F, ch2&0x7F));
+}
+
+#ifdef	MINI_KON
+
+#define	FldGB2312	NULL
+#define	FldKSC5601	NULL
+
+#else
+
+static u_int FldKSC5601(u_char ch1, u_char ch2)
+{
+    return(KSC5601(ch1&0x7F, ch2&0x7F));
+}
+
+static u_int FldGB2312(u_char ch1, u_char ch2)
+{
+    return(GB2312(ch1&0x7F, ch2&0x7F));
+}
+
+#endif
+
+struct fontRegs fSRegs[] = {
+    /* latin1(French, Spanish, ...) */
+    {    NULL, 0,      "ISO8859-1", NULL, 0, 0, 'B', 'A', 0},
+    /* latin2 */
+    {    NULL, 0,      "ISO8859-2", NULL, 0, 0, 'B', 'B', 0},
+    /* latin3 */
+    {    NULL, 0,      "ISO8859-3", NULL, 0, 0, 'B', 'C', 0},
+    /* latin4 */
+    {    NULL, 0,      "ISO8859-4", NULL, 0, 0, 'B', 'D', 0},
+    /* Russian */
+    {    NULL, 0,      "ISO8859-5", NULL, 0, 0, 'B', 'L', 0},
+    /* Arabic */
+    {    NULL, 0,      "ISO8859-6", NULL, 0, 0, 'B', 'G', 0},
+    /* Greek */
+    {    NULL, 0,      "ISO8859-7", NULL, 0, 0, 'B', 'F', 0},
+    /* Hebrew */
+    {    NULL, 0,      "ISO8859-8", NULL, 0, 0, 'B', 'H', 0},
+    /* latin5 */
+    {    NULL, 0,      "ISO8859-9", NULL, 0, 0, 'B', 'M', 0},
+    /* Japanese */
+    {    NULL, 0,"JISX0201.1976-0", NULL, 0, 0, 'J', 'I', 0},
+    {    NULL, 0,             NULL, NULL, 0, 0,   0,   0, 0}
+};
+
+struct fontLoaderRegs fldSRegs[] = {
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,   0xFF},
+    {       NULL,      0},
+};
+
+struct fontRegs fDRegs[] = {
+    /* DF_GB2312 */
+    {  GB2312, 0,  "GB2312.1980-0", NULL, 0, 0, 'A', 0, 0},
+    /* DF_JISX0208 */
+    {JISX0208, 0,"JISX0208.1983-0", NULL, 0, 0, 'B', 0, 0},
+    /* DF_KSC5601 */
+    { KSC5601, 0, "KSC5601.1987-0", NULL, 0, 0, 'C', 0, 0},
+    /* DF_JISX0212 */
+    {JISX0208, 0,       "JISX0212", NULL, 0, 0, 'D', 0, 0},
+    /* DF_BIG5_0 */
+    {    BIG5, 0,     "BIG5.HKU-0", NULL, 0, 0, '0', 0, 0},
+    /* DF_BIG5_1 */
+    {    BIG5, 0,     "BIG5.HKU-0", NULL, 0, 0, '1', 0, 0},
+    {    NULL, 0,             NULL, NULL, 0, 0,   0, 0, 0}
+};
+
+struct fontLoaderRegs fldDRegs[] = {
+    {  FldGB2312,      0},
+    {FldJISX0208, 0x7424},
+    { FldKSC5601, 0x7D7E},
+    {FldJISX0208, 0x7424},
+    {       BIG5,      0},
+    {       BIG5,      0},
+    {       NULL,      0}
+};
+
+int CodingByRegistry(char *reg)
+{
+    int i;
+
+    i = 0;
+    while (fSRegs[i].registry) {
+	if (!strncasecmp(fSRegs[i].registry, reg, strlen(reg)))
+	    return(i|CHR_SFLD);
+	i ++;
+    }
+    i = 0;
+    while (fDRegs[i].registry) {
+	if (!strncasecmp(fDRegs[i].registry, reg, strlen(reg)))
+	    return(i|CHR_DFLD);
+	i ++;
+    }
+    return(-1);
+}