(LEADING_BYTE_HIRAGANA_JISX0208): New macro.

[chise/xemacs-chise.git] / src / char-ucs.h

diff --git a/src/char-ucs.h b/src/char-ucs.h
index 7302124..c51639d 100644 (file)
--- a/src/char-ucs.h
+++ b/src/char-ucs.h
@@ -60,6 +60,8 @@ typedef int Charset_ID;
 
 #define LEADING_BYTE_UCS_BMP           0x80
 #define LEADING_BYTE_CONTROL_1         0x81 /* represent normal 80-9F */
+#define LEADING_BYTE_HIRAGANA_JISX0208 0x82
+#define LEADING_BYTE_KATAKANA_JISX0208 0x83
 
 
 #define CHARSET_ID_OFFSET_94           0x55
@@ -216,7 +218,7 @@ struct Lisp_Charset
   unsigned int graphic;
 
   /* Byte->character mapping table */
-  Emchar* decoding_table;
+  Lisp_Object decoding_table;
 
   /* Character->byte mapping table */
   Emchar_to_byte_table* to_byte1_table;
@@ -225,8 +227,11 @@ struct Lisp_Charset
   /* Range of character code */
   Emchar ucs_min, ucs_max;
 
-  /* Offset for external representation */
+  /* Offset for external code */
   Emchar code_offset;
+
+  /* Offset for each byte */
+  Emchar byte_offset;
 };
 
 DECLARE_LRECORD (charset, struct Lisp_Charset);
@@ -270,6 +275,7 @@ DECLARE_LRECORD (charset, struct Lisp_Charset);
 #define CHARSET_UCS_MIN(cs)     ((cs)->ucs_min)
 #define CHARSET_UCS_MAX(cs)     ((cs)->ucs_max)
 #define CHARSET_CODE_OFFSET(cs)         ((cs)->code_offset)
+#define CHARSET_BYTE_OFFSET(cs)         ((cs)->byte_offset)
 
 
 #define XCHARSET_ID(cs)                  CHARSET_ID           (XCHARSET (cs))
@@ -291,6 +297,10 @@ DECLARE_LRECORD (charset, struct Lisp_Charset);
 #define XCHARSET_DECODING_TABLE(cs) CHARSET_DECODING_TABLE(XCHARSET(cs))
 #define XCHARSET_TO_BYTE1_TABLE(cs) CHARSET_TO_BYTE1_TABLE(XCHARSET(cs))
 #define XCHARSET_TO_BYTE2_TABLE(cs) CHARSET_TO_BYTE2_TABLE(XCHARSET(cs))
+#define XCHARSET_UCS_MIN(cs)     CHARSET_UCS_MIN(XCHARSET(cs))
+#define XCHARSET_UCS_MAX(cs)     CHARSET_UCS_MAX(XCHARSET(cs))
+#define XCHARSET_CODE_OFFSET(cs)  CHARSET_CODE_OFFSET(XCHARSET(cs))
+#define XCHARSET_BYTE_OFFSET(cs)  CHARSET_BYTE_OFFSET(XCHARSET(cs))
 
 /* Table of charsets indexed by (leading byte - 128). */
 extern Lisp_Object charset_by_leading_byte[NUM_LEADING_BYTES];
@@ -340,7 +350,13 @@ CHARSET_BY_LEADING_BYTE (Charset_ID lb)
 #define MIN_CHAR_THAI          0x0E00
 #define MAX_CHAR_THAI          0x0E5F
 
-#define MIN_CHAR_HALFWIDTH_KATAKANA    0xFF60
+#define MIN_CHAR_HIRAGANA      0x3041
+#define MAX_CHAR_HIRAGANA      0x3093
+
+#define MIN_CHAR_KATAKANA      0x30A1
+#define MAX_CHAR_KATAKANA      0x30F6
+
+#define MIN_CHAR_HALFWIDTH_KATAKANA    0xFF61
 #define MAX_CHAR_HALFWIDTH_KATAKANA    0xFF9F
 
 #define MIN_CHAR_94            0xE90940
@@ -361,25 +377,29 @@ INLINE Emchar MAKE_CHAR (Lisp_Object charset, int c1, int c2);
 INLINE Emchar
 MAKE_CHAR (Lisp_Object charset, int c1, int c2)
 {
-  Emchar* decoding_table;
-  
-  if ((decoding_table = XCHARSET_DECODING_TABLE (charset)) != NULL)
-    return decoding_table[c1 - (XCHARSET_CHARS (charset) == 94 ? 33 : 32)];
+  Lisp_Object decoding_table = XCHARSET_DECODING_TABLE (charset);
+  int idx;
+  Lisp_Object ch;
+
+  if (!EQ (decoding_table, Qnil)
+      && (0 <= (idx = c1 - (XCHARSET_CHARS (charset) == 94 ? 33 : 32)))
+      && (idx < XVECTOR_LENGTH (decoding_table))
+      && !EQ (ch = XVECTOR_DATA(decoding_table)[idx], Qnil))
+    return XCHAR (ch);
   else if (EQ (charset, Vcharset_katakana_jisx0201))
     if (c1 < 0x60)
-      return c1 + MIN_CHAR_HALFWIDTH_KATAKANA - 0x20;
+      return c1 + MIN_CHAR_HALFWIDTH_KATAKANA - 33;
     else
       /* return MIN_CHAR_94 + ('I' - '0') * 94 + (c1 - 33); */
       return ' ';
-  else if (CHARSET_UCS_MAX (XCHARSET (charset)))
+  else if (XCHARSET_UCS_MAX (charset))
     return (XCHARSET_DIMENSION (charset) == 1
            ?
-           c1 - CHARSET_CODE_OFFSET (XCHARSET (charset))
+           c1 - XCHARSET_BYTE_OFFSET (charset)
            :
-           (c1 - CHARSET_CODE_OFFSET (XCHARSET (charset)))
-           * XCHARSET_CHARS (charset)
-           + c2  - CHARSET_CODE_OFFSET (XCHARSET (charset)))
-      + CHARSET_UCS_MIN (XCHARSET (charset));
+           (c1 - XCHARSET_BYTE_OFFSET (charset)) * XCHARSET_CHARS (charset)
+           + c2  - XCHARSET_BYTE_OFFSET (charset))
+      - XCHARSET_CODE_OFFSET (charset) + XCHARSET_UCS_MIN (charset);
   else if (XCHARSET_DIMENSION (charset) == 1)
     {
       switch (XCHARSET_CHARS (charset))
@@ -483,7 +503,7 @@ breakup_char_1 (Emchar c, Lisp_Object *charset, int *c1, int *c2)
               && (c <= MAX_CHAR_HALFWIDTH_KATAKANA))
        {
          *charset = Vcharset_katakana_jisx0201;
-         *c1 = c - MIN_CHAR_HALFWIDTH_KATAKANA + 0x20;
+         *c1 = c - MIN_CHAR_HALFWIDTH_KATAKANA + 33;
          *c2 = 0;
        }
       else