#ifndef _XEMACS_CHAR_UCS_H
#define _XEMACS_CHAR_UCS_H
-/* ---------------------------- */
-/* (D) For working with Emchars */
-/* ---------------------------- */
-
#define valid_char_p(ch) 1
#define CHAR_ASCII_P(ch) ((ch) <= 0x7F)
\f
+DECLARE_LRECORD (char_byte_table, struct Lisp_Char_Byte_Table);
+#define XCHAR_BYTE_TABLE(x) \
+ XRECORD (x, char_byte_table, struct Lisp_Char_Byte_Table)
+#define XSETCHAR_BYTE_TABLE(x, p) XSETRECORD (x, p, char_byte_table)
+#define CHAR_BYTE_TABLE_P(x) RECORDP (x, char_byte_table)
+#define GC_CHAR_BYTE_TABLE_P(x) GC_RECORDP (x, char_byte_table)
+/* #define CHECK_CHAR_BYTE_TABLE(x) CHECK_RECORD (x, char_byte_table)
+ char table entries should never escape to Lisp */
+
+struct Lisp_Char_Byte_Table
+{
+ struct lcrecord_header header;
+
+ Lisp_Object property[256];
+};
+
+Lisp_Object get_char_code_table (Emchar ch, Lisp_Object table);
+
+
+extern Lisp_Object Vcharset_ucs_bmp;
+extern Lisp_Object Vcharset_latin_jisx0201;
+extern Lisp_Object Vcharset_latin_iso8859_2;
+extern Lisp_Object Vcharset_latin_iso8859_3;
+extern Lisp_Object Vcharset_latin_iso8859_4;
+extern Lisp_Object Vcharset_latin_iso8859_9;
+extern Lisp_Object Vcharset_latin_viscii_lower;
+extern Lisp_Object Vcharset_latin_viscii_upper;
+
+\f
/************************************************************************/
/* Definition of leading bytes */
/************************************************************************/
#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 LEADING_BYTE_LATIN_VISCII 0x84
-
-#define CHARSET_ID_OFFSET_94 0x60
+#define CHARSET_ID_OFFSET_94 0x55
#define MIN_CHARSET_ID_PRIVATE_94 (CHARSET_ID_OFFSET_94 + '0')
#define MAX_CHARSET_ID_PRIVATE_94 (CHARSET_ID_OFFSET_94 + '?')
#define CHARSET_ID_OFFSET_96 0x70
+#define LEADING_BYTE_LATIN_VISCII_LOWER (CHARSET_ID_OFFSET_96 + '1')
+#define LEADING_BYTE_LATIN_VISCII_UPPER (CHARSET_ID_OFFSET_96 + '2')
+
/* Right half of ISO 8859-1 */
#define LEADING_BYTE_LATIN_ISO8859_1 (CHARSET_ID_OFFSET_96 + 'A')
\f
/************************************************************************/
-/* Operations on individual bytes */
-/* of any format */
-/************************************************************************/
-
-/* Argument `c' should be (unsigned int) or (unsigned char). */
-/* Note that SP and DEL are not included. */
-
-#define BYTE_ASCII_P(c) ((c) < 0x80)
-#define BYTE_C0_P(c) ((c) < 0x20)
-/* Do some forced casting just to make *sure* things are gotten right. */
-#define BYTE_C1_P(c) ((unsigned int) ((unsigned int) (c) - 0x80) < 0x20)
-
-\f
-/************************************************************************/
/* Information about a particular character set */
/************************************************************************/
/* Final byte of this character set in ISO2022 designating escape sequence */
Bufbyte final;
- /* Number of bytes (1 - 4) required in the internal representation
- for characters in this character set. This is *not* the
- same as the dimension of the character set). */
- unsigned int rep_bytes;
-
/* Number of columns a character in this charset takes up, on TTY
devices. Not used for X devices. */
unsigned int columns;
/* Which half of font to be used to display this character set */
unsigned int graphic;
+
+ /* Byte->character mapping table */
+ Lisp_Object decoding_table;
+
+ /* Character->byte mapping table */
+ Lisp_Object encoding_table;
+
+ /* Range of character code */
+ Emchar ucs_min, ucs_max;
+
+ /* Offset for external code */
+ Emchar code_offset;
+
+ /* Offset for each byte */
+ Emchar byte_offset;
};
DECLARE_LRECORD (charset, struct Lisp_Charset);
#define CHECK_CHARSET(x) CHECK_RECORD (x, charset)
#define CONCHECK_CHARSET(x) CONCHECK_RECORD (x, charset)
-#define CHARSET_TYPE_94 0 /* This charset includes 94 characters. */
-#define CHARSET_TYPE_96 1 /* This charset includes 96 characters. */
-#define CHARSET_TYPE_94X94 2 /* This charset includes 94x94 characters. */
-#define CHARSET_TYPE_96X96 3 /* This charset includes 96x96 characters. */
-#define CHARSET_TYPE_128X128 4 /* This charset includes 128x128 characters. */
-#define CHARSET_TYPE_256X256 5 /* This charset includes 256x256 characters. */
+#define CHARSET_TYPE_94 0 /* This charset includes 94 characters. */
+#define CHARSET_TYPE_94X94 1 /* This charset includes 94x94 characters. */
+#define CHARSET_TYPE_96 2 /* This charset includes 96 characters. */
+#define CHARSET_TYPE_96X96 3 /* This charset includes 96x96 characters. */
+#define CHARSET_TYPE_128 4 /* This charset includes 128 characters. */
+#define CHARSET_TYPE_128X128 5 /* This charset includes 128x128 characters. */
+#define CHARSET_TYPE_256 6 /* This charset includes 256 characters. */
+#define CHARSET_TYPE_256X256 7 /* This charset includes 256x256 characters. */
#define CHARSET_LEFT_TO_RIGHT 0
#define CHARSET_RIGHT_TO_LEFT 1
#define CHARSET_NAME(cs) ((cs)->name)
#define CHARSET_SHORT_NAME(cs) ((cs)->short_name)
#define CHARSET_LONG_NAME(cs) ((cs)->long_name)
-#define CHARSET_REP_BYTES(cs) ((cs)->rep_bytes)
#define CHARSET_COLUMNS(cs) ((cs)->columns)
#define CHARSET_GRAPHIC(cs) ((cs)->graphic)
#define CHARSET_TYPE(cs) ((cs)->type)
#define CHARSET_DIMENSION(cs) ((cs)->dimension)
#define CHARSET_CHARS(cs) ((cs)->chars)
#define CHARSET_REVERSE_DIRECTION_CHARSET(cs) ((cs)->reverse_direction_charset)
+#define CHARSET_DECODING_TABLE(cs) ((cs)->decoding_table)
+#define CHARSET_ENCODING_TABLE(cs) ((cs)->encoding_table)
+#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))
#define XCHARSET_NAME(cs) CHARSET_NAME (XCHARSET (cs))
#define XCHARSET_SHORT_NAME(cs) CHARSET_SHORT_NAME (XCHARSET (cs))
#define XCHARSET_LONG_NAME(cs) CHARSET_LONG_NAME (XCHARSET (cs))
-#define XCHARSET_REP_BYTES(cs) CHARSET_REP_BYTES (XCHARSET (cs))
-#define XCHARSET_COLUMNS(cs) CHARSET_COLUMNS (XCHARSET (cs))
#define XCHARSET_GRAPHIC(cs) CHARSET_GRAPHIC (XCHARSET (cs))
#define XCHARSET_TYPE(cs) CHARSET_TYPE (XCHARSET (cs))
#define XCHARSET_DIRECTION(cs) CHARSET_DIRECTION (XCHARSET (cs))
#define XCHARSET_CHARS(cs) CHARSET_CHARS (XCHARSET (cs))
#define XCHARSET_REVERSE_DIRECTION_CHARSET(cs) \
CHARSET_REVERSE_DIRECTION_CHARSET (XCHARSET (cs))
+#define XCHARSET_DECODING_TABLE(cs) CHARSET_DECODING_TABLE(XCHARSET(cs))
+#define XCHARSET_ENCODING_TABLE(cs) CHARSET_ENCODING_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];
#define CHARSET_BY_ATTRIBUTES(type, final, dir) \
(charset_by_attributes[type][final])
-INLINE int REP_BYTES_BY_FIRST_BYTE (int fb);
-INLINE int
-REP_BYTES_BY_FIRST_BYTE (int fb)
-{
- if ( fb < 0xc0 )
- return 1;
- else if ( fb < 0xe0 )
- return 2;
- else if ( fb < 0xf0 )
- return 3;
- else if ( fb < 0xf8 )
- return 4;
- else if ( fb < 0xfc )
- return 5;
- else
- return 6;
-}
-
\f
/************************************************************************/
/* Dealing with characters */
#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_OBS_94x94 0xE00000
+#define MAX_CHAR_OBS_94x94 (0xE00000 + 94 * 94 * 14 - 1)
+
#define MIN_CHAR_94 0xE90940
#define MAX_CHAR_94 (MIN_CHAR_94 + 94 * 80 - 1)
#define MIN_CHAR_96 (MIN_CHAR_94 + 94 * 80)
INLINE Emchar
MAKE_CHAR (Lisp_Object charset, int c1, int c2)
{
- if (EQ (charset, Vcharset_ascii))
- return c1;
- else if (EQ (charset, Vcharset_control_1))
- return c1 | 0x80;
- else if (EQ (charset, Vcharset_latin_iso8859_1))
- return c1 | 0x80;
- else if (EQ (charset, Vcharset_greek_iso8859_7))
- return c1 + MIN_CHAR_GREEK - 0x20;
- else if (EQ (charset, Vcharset_cyrillic_iso8859_5))
- return c1 + MIN_CHAR_CYRILLIC - 0x20;
- else if (EQ (charset, Vcharset_hebrew_iso8859_8))
- return c1 + MIN_CHAR_HEBREW - 0x20;
- else if (EQ (charset, Vcharset_thai_tis620))
- return c1 + MIN_CHAR_THAI - 0x20;
- else if (EQ (charset, Vcharset_katakana_jisx0201))
+ Lisp_Object decoding_table = XCHARSET_DECODING_TABLE (charset);
+ int idx;
+ Lisp_Object ch;
+
+ if (!EQ (decoding_table, Qnil)
+ && (0 <= (idx = c1 - XCHARSET_BYTE_OFFSET (charset)))
+ && (idx < XVECTOR_LENGTH (decoding_table))
+ && !EQ (ch = XVECTOR_DATA(decoding_table)[idx], Qnil))
+ {
+ if (VECTORP (ch))
+ {
+ if ((0 <= (idx = c2 - XCHARSET_BYTE_OFFSET (charset)))
+ && (idx < XVECTOR_LENGTH (ch))
+ && !EQ (ch = XVECTOR_DATA(ch)[idx], Qnil))
+ return XCHAR (ch);
+ }
+ else
+ return XCHAR (ch);
+ }
+ 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 32;
+ /* return MIN_CHAR_94 + ('I' - '0') * 94 + (c1 - 33); */
+ return ' ';
+ else if (XCHARSET_UCS_MAX (charset))
+ {
+ Emchar code
+ = (XCHARSET_DIMENSION (charset) == 1
+ ?
+ c1 - XCHARSET_BYTE_OFFSET (charset)
+ :
+ (c1 - XCHARSET_BYTE_OFFSET (charset)) * XCHARSET_CHARS (charset)
+ + c2 - XCHARSET_BYTE_OFFSET (charset))
+ - XCHARSET_CODE_OFFSET (charset) + XCHARSET_UCS_MIN (charset);
+ if ((code < XCHARSET_UCS_MIN (charset))
+ || (XCHARSET_UCS_MAX (charset) < code))
+ signal_simple_error ("Arguments makes invalid character",
+ make_char (code));
+ return code;
+ }
else if (XCHARSET_DIMENSION (charset) == 1)
{
switch (XCHARSET_CHARS (charset))
}
}
-extern Charset_ID latin_a_char_to_charset[128];
-extern unsigned char latin_a_char_to_byte1[128];
-extern unsigned char latin_a_char_to_byte2[128];
+unsigned char charset_get_byte1 (Lisp_Object charset, Emchar ch);
+unsigned char charset_get_byte2 (Lisp_Object charset, Emchar ch);
+
+extern Lisp_Object Vdefault_coded_charset_priority_list;
+EXFUN (Ffind_charset, 1);
INLINE void breakup_char_1 (Emchar c, Lisp_Object *charset, int *c1, int *c2);
INLINE void
breakup_char_1 (Emchar c, Lisp_Object *charset, int *c1, int *c2)
{
- if (c <= MAX_CHAR_BASIC_LATIN)
- {
- *charset = Vcharset_ascii;
- *c1 = c;
- *c2 = 0;
- }
- else if (c < 0xA0)
- {
- *charset = Vcharset_control_1;
- *c1 = c & 0x7f;
- *c2 = 0;
- }
- else if (c <= 0xff)
+ if (c < MIN_CHAR_OBS_94x94)
{
- *charset = Vcharset_latin_iso8859_1;
- *c1 = c & 0x7f;
- *c2 = 0;
+ Lisp_Object charsets = Vdefault_coded_charset_priority_list;
+ while (!EQ (charsets, Qnil))
+ {
+ *charset = Ffind_charset (Fcar (charsets));
+ if (!EQ (*charset, Qnil)
+ && (*c1 = charset_get_byte1 (*charset, c)) )
+ {
+ *c2 = charset_get_byte2 (*charset, c);
+ return;
+ }
+ charsets = Fcdr (charsets);
+ }
+ /* otherwise --- maybe for bootstrap */
+ if (c <= MAX_CHAR_BASIC_LATIN)
+ {
+ *charset = Vcharset_ascii;
+ *c1 = charset_get_byte1 (*charset, c);
+ *c2 = charset_get_byte2 (*charset, c);
+ }
+ else if (c < 0xA0)
+ {
+ *charset = Vcharset_control_1;
+ *c1 = charset_get_byte1 (*charset, c);
+ *c2 = charset_get_byte2 (*charset, c);
+ }
+ else if (c <= 0xff)
+ {
+ *charset = Vcharset_latin_iso8859_1;
+ *c1 = charset_get_byte1 (*charset, c);
+ *c2 = charset_get_byte2 (*charset, c);
+ }
+ else if ((MIN_CHAR_GREEK <= c) && (c <= MAX_CHAR_GREEK))
+ {
+ *charset = Vcharset_greek_iso8859_7;
+ *c1 = c - MIN_CHAR_GREEK + 0x20;
+ *c2 = 0;
+ }
+ else if ((MIN_CHAR_CYRILLIC <= c) && (c <= MAX_CHAR_CYRILLIC))
+ {
+ *charset = Vcharset_cyrillic_iso8859_5;
+ *c1 = c - MIN_CHAR_CYRILLIC + 0x20;
+ *c2 = 0;
+ }
+ else if ((MIN_CHAR_HEBREW <= c) && (c <= MAX_CHAR_HEBREW))
+ {
+ *charset = Vcharset_hebrew_iso8859_8;
+ *c1 = c - MIN_CHAR_HEBREW + 0x20;
+ *c2 = 0;
+ }
+ else if ((MIN_CHAR_THAI <= c) && (c <= MAX_CHAR_THAI))
+ {
+ *charset = Vcharset_thai_tis620;
+ *c1 = c - MIN_CHAR_THAI + 0x20;
+ *c2 = 0;
+ }
+ else if ((MIN_CHAR_HALFWIDTH_KATAKANA <= c)
+ && (c <= MAX_CHAR_HALFWIDTH_KATAKANA))
+ {
+ *charset = Vcharset_katakana_jisx0201;
+ *c1 = c - MIN_CHAR_HALFWIDTH_KATAKANA + 33;
+ *c2 = 0;
+ }
+ else
+ {
+ *charset = Vcharset_ucs_bmp;
+ *c1 = c >> 8;
+ *c2 = c & 0xff;
+ }
}
- else if (c <= 0x17f)
+ else if (c <= MAX_CHAR_OBS_94x94)
{
*charset
- = CHARSET_BY_LEADING_BYTE (latin_a_char_to_charset[c - 0x100]);
- *c1 = latin_a_char_to_byte1[c - 0x100];
- *c2 = latin_a_char_to_byte2[c - 0x100];
- }
- else if (c < MIN_CHAR_GREEK)
- {
- printf("not break up u+%x", c);
- abort ();
- }
- else if (c <= MAX_CHAR_GREEK)
- {
- *charset = Vcharset_greek_iso8859_7;
- *c1 = c - MIN_CHAR_GREEK + 0x20;
- *c2 = 0;
- }
- else if (c < MIN_CHAR_CYRILLIC)
- {
- printf("not break up u+%x", c);
- abort ();
- }
- else if (c <= MAX_CHAR_CYRILLIC)
- {
- *charset = Vcharset_cyrillic_iso8859_5;
- *c1 = c - MIN_CHAR_CYRILLIC + 0x20;
- *c2 = 0;
- }
- else if (c < MIN_CHAR_HEBREW)
- {
- printf("not break up u+%x", c);
- abort ();
- }
- else if (c <= MAX_CHAR_HEBREW)
- {
- *charset = Vcharset_hebrew_iso8859_8;
- *c1 = c - MIN_CHAR_HEBREW + 0x20;
- *c2 = 0;
- }
- else if (c < MIN_CHAR_THAI)
- {
- printf("not break up u+%x", c);
- abort ();
- }
- else if (c <= MAX_CHAR_THAI)
- {
- *charset = Vcharset_thai_tis620;
- *c1 = c - MIN_CHAR_THAI + 0x20;
- *c2 = 0;
- }
- else if (c < MIN_CHAR_HALFWIDTH_KATAKANA)
- {
- printf("not break up u+%x", c);
- abort ();
- }
- else if (c <= MAX_CHAR_HALFWIDTH_KATAKANA)
- {
- *charset = Vcharset_katakana_jisx0201;
- *c1 = c - MIN_CHAR_HALFWIDTH_KATAKANA + 0x20;
- *c2 = 0;
+ = CHARSET_BY_ATTRIBUTES (CHARSET_TYPE_94X94,
+ ((c - MIN_CHAR_OBS_94x94) / (94 * 94)) + '@',
+ CHARSET_LEFT_TO_RIGHT);
+ *c1 = (((c - MIN_CHAR_OBS_94x94) / 94) % 94) + 33;
+ *c2 = ((c - MIN_CHAR_OBS_94x94) % 94) + 33;
}
else if (c <= MAX_CHAR_94)
{
#define CHAR_LEADING_BYTE(c) (XCHARSET_LEADING_BYTE(CHAR_CHARSET(c)))
-\f
-#ifdef ENABLE_COMPOSITE_CHARS
-/************************************************************************/
-/* Composite characters */
-/************************************************************************/
-
-Emchar lookup_composite_char (Bufbyte *str, int len);
-Lisp_Object composite_char_string (Emchar ch);
-#endif /* ENABLE_COMPOSITE_CHARS */
+#define CHAR_COLUMNS(c) (CHARSET_COLUMNS(XCHARSET(CHAR_CHARSET(c))))
\f
/************************************************************************/
/* Exported functions */
/************************************************************************/
-EXFUN (Ffind_charset, 1);
EXFUN (Fget_charset, 1);
extern Lisp_Object Vcharset_chinese_big5_1;
extern Lisp_Object Vcharset_japanese_jisx0208;
extern Lisp_Object Vcharset_japanese_jisx0212;
-Emchar Lstream_get_emchar_1 (Lstream *stream, int first_char);
-int Lstream_fput_emchar (Lstream *stream, Emchar ch);
-void Lstream_funget_emchar (Lstream *stream, Emchar ch);
-
-int copy_internal_to_external (CONST Bufbyte *internal, Bytecount len,
- unsigned char *external);
-Bytecount copy_external_to_internal (CONST unsigned char *external,
- int len, Bufbyte *internal);
-
#endif /* _XEMACS_CHAR_UCS_H */
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