Character set Encoding (PC == position-code)
------------- -------- (LB == leading-byte)
- ASCII PC1 |
+ ASCII PC1 |
Control-1 LB | PC1 + 0xA0
Dimension-1 official LB | PC1 + 0x80
Dimension-1 private 0x9E | LB | PC1 + 0x80
#define MIN_LEADING_BYTE 0x80
/* These need special treatment in a string and/or character */
#define LEADING_BYTE_ASCII 0x8E /* Omitted in a buffer */
-#ifdef ENABLE_COMPOSITE_CHARS
-#endif
#define LEADING_BYTE_COMPOSITE 0x80 /* for a composite character */
#define LEADING_BYTE_CONTROL_1 0x8F /* represent normal 80-9F */
-/* Note the gap in each official charset can cause core dump
- as first and last values are used to determine whether
- charset is defined or not in non_ascii_valid_char_p */
-
/** The following are for 1-byte characters in an official charset. **/
-enum LEADING_BYTE_OFFICIAL_1
-{
- LEADING_BYTE_LATIN_ISO8859_1 = 0x81, /* Right half of ISO 8859-1 */
- LEADING_BYTE_LATIN_ISO8859_2, /* 0x82 Right half of ISO 8859-2 */
- LEADING_BYTE_LATIN_ISO8859_3, /* 0x83 Right half of ISO 8859-3 */
- LEADING_BYTE_LATIN_ISO8859_4, /* 0x84 Right half of ISO 8859-4 */
- LEADING_BYTE_THAI_TIS620, /* 0x85 TIS620-2533 */
- LEADING_BYTE_GREEK_ISO8859_7, /* 0x86 Right half of ISO 8859-7 */
- LEADING_BYTE_ARABIC_ISO8859_6, /* 0x87 Right half of ISO 8859-6 */
- LEADING_BYTE_HEBREW_ISO8859_8, /* 0x88 Right half of ISO 8859-8 */
- LEADING_BYTE_KATAKANA_JISX0201, /* 0x89 Right half of JIS X0201-1976 */
- LEADING_BYTE_LATIN_JISX0201, /* 0x8A Left half of JIS X0201-1976 */
- LEADING_BYTE_CYRILLIC_ISO8859_5,/* 0x8B Right half of ISO 8859-5 */
- LEADING_BYTE_LATIN_ISO8859_9 /* 0x8C Right half of ISO 8859-9 */
- /* 0x8D unused */
-};
+
+#define LEADING_BYTE_LATIN_ISO8859_1 0x81 /* Right half of ISO 8859-1 */
+#define LEADING_BYTE_LATIN_ISO8859_2 0x82 /* Right half of ISO 8859-2 */
+#define LEADING_BYTE_LATIN_ISO8859_3 0x83 /* Right half of ISO 8859-3 */
+#define LEADING_BYTE_LATIN_ISO8859_4 0x84 /* Right half of ISO 8859-4 */
+#define LEADING_BYTE_THAI_TIS620 0x85 /* TIS620-2533 */
+#define LEADING_BYTE_GREEK_ISO8859_7 0x86 /* Right half of ISO 8859-7 */
+#define LEADING_BYTE_ARABIC_ISO8859_6 0x87 /* Right half of ISO 8859-6 */
+#define LEADING_BYTE_HEBREW_ISO8859_8 0x88 /* Right half of ISO 8859-8 */
+#define LEADING_BYTE_KATAKANA_JISX0201 0x89 /* Right half of JIS X0201-1976 */
+#define LEADING_BYTE_LATIN_JISX0201 0x8A /* Left half of JIS X0201-1976 */
+#define LEADING_BYTE_CYRILLIC_ISO8859_5 0x8C /* Right half of ISO 8859-5 */
+#define LEADING_BYTE_LATIN_ISO8859_9 0x8D /* Right half of ISO 8859-9 */
#define MIN_LEADING_BYTE_OFFICIAL_1 LEADING_BYTE_LATIN_ISO8859_1
#define MAX_LEADING_BYTE_OFFICIAL_1 LEADING_BYTE_LATIN_ISO8859_9
/** The following are for 2-byte characters in an official charset. **/
-enum LEADING_BYTE_OFFICIAL_2
-{
- LEADING_BYTE_JAPANESE_JISX0208_1978 = 0x90, /* Japanese JIS X0208-1978 */
- LEADING_BYTE_CHINESE_GB2312, /* 0x91 Chinese Hanzi GB2312-1980 */
- LEADING_BYTE_JAPANESE_JISX0208, /* 0x92 Japanese JIS X0208-1983 */
- LEADING_BYTE_KOREAN_KSC5601, /* 0x93 Hangul KS C5601-1987 */
- LEADING_BYTE_JAPANESE_JISX0212, /* 0x94 Japanese JIS X0212-1990 */
- LEADING_BYTE_CHINESE_CNS11643_1, /* 0x95 Chinese CNS11643 Set 1 */
- LEADING_BYTE_CHINESE_CNS11643_2, /* 0x96 Chinese CNS11643 Set 2 */
- LEADING_BYTE_CHINESE_BIG5_1, /* 0x97 Big5 Level 1 */
- LEADING_BYTE_CHINESE_BIG5_2 /* 0x98 Big5 Level 2 */
- /* 0x99 unused */
- /* 0x9A unused */
- /* 0x9B unused */
- /* 0x9C unused */
-};
+
+#define LEADING_BYTE_JAPANESE_JISX0208_1978 0x90/* Japanese JIS X0208-1978 */
+#define LEADING_BYTE_CHINESE_GB2312 0x91 /* Chinese Hanzi GB2312-1980 */
+#define LEADING_BYTE_JAPANESE_JISX0208 0x92 /* Japanese JIS X0208-1983 */
+#define LEADING_BYTE_KOREAN_KSC5601 0x93 /* Hangul KS C5601-1987 */
+#define LEADING_BYTE_JAPANESE_JISX0212 0x94 /* Japanese JIS X0212-1990 */
+#define LEADING_BYTE_CHINESE_CNS11643_1 0x95 /* Chinese CNS11643 Set 1 */
+#define LEADING_BYTE_CHINESE_CNS11643_2 0x96 /* Chinese CNS11643 Set 2 */
+#define LEADING_BYTE_CHINESE_BIG5_1 0x97 /* Big5 Level 1 */
+#define LEADING_BYTE_CHINESE_BIG5_2 0x98 /* Big5 Level 2 */
+ /* 0x99 unused */
+ /* 0x9A unused */
+ /* 0x9B unused */
+ /* 0x9C unused */
+ /* 0x9D unused */
#define MIN_LEADING_BYTE_OFFICIAL_2 LEADING_BYTE_JAPANESE_JISX0208_1978
#define MAX_LEADING_BYTE_OFFICIAL_2 LEADING_BYTE_CHINESE_BIG5_2
int id;
Lisp_Object name;
- Lisp_Object doc_string, registry, short_name, long_name;
+ Lisp_Object doc_string, registry;
Lisp_Object reverse_direction_charset;
Lisp_Object ccl_program;
+ Bufbyte leading_byte;
+
/* Final byte of this character set in ISO2022 designating escape sequence */
Bufbyte final;
#define XCHARSET(x) XRECORD (x, charset, struct Lisp_Charset)
#define XSETCHARSET(x, p) XSETRECORD (x, p, charset)
#define CHARSETP(x) RECORDP (x, charset)
+#define GC_CHARSETP(x) GC_RECORDP (x, charset)
#define CHECK_CHARSET(x) CHECK_RECORD (x, charset)
#define CONCHECK_CHARSET(x) CONCHECK_RECORD (x, charset)
#define CHARSET_LEFT_TO_RIGHT 0
#define CHARSET_RIGHT_TO_LEFT 1
-/* Leading byte and id have been regrouped. -- OG */
#define CHARSET_ID(cs) ((cs)->id)
-#define CHARSET_LEADING_BYTE(cs) ((Bufbyte) CHARSET_ID(cs))
#define CHARSET_NAME(cs) ((cs)->name)
-#define CHARSET_SHORT_NAME(cs) ((cs)->short_name)
-#define CHARSET_LONG_NAME(cs) ((cs)->long_name)
+#define CHARSET_LEADING_BYTE(cs) ((cs)->leading_byte)
#define CHARSET_REP_BYTES(cs) ((cs)->rep_bytes)
#define CHARSET_COLUMNS(cs) ((cs)->columns)
#define CHARSET_GRAPHIC(cs) ((cs)->graphic)
#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_REVERSE_DIRECTION_CHARSET(cs) \
CHARSET_REVERSE_DIRECTION_CHARSET (XCHARSET (cs))
-struct charset_lookup {
- /* Table of charsets indexed by leading byte. */
- Lisp_Object charset_by_leading_byte[128];
-
- /* Table of charsets indexed by type/final-byte/direction. */
- Lisp_Object charset_by_attributes[4][128][2];
-};
+/* Table of charsets indexed by (leading byte - 128). */
+extern Lisp_Object charset_by_leading_byte[128];
+
+/* Table of charsets indexed by type/final-byte/direction. */
+extern Lisp_Object charset_by_attributes[4][128][2];
+
+/* Table of number of bytes in the string representation of a character
+ indexed by the first byte of that representation.
+
+ This value can be derived other ways -- e.g. something like
-extern struct charset_lookup *chlook;
+ (BYTE_ASCII_P (first_byte) ? 1 :
+ XCHARSET_REP_BYTES (CHARSET_BY_LEADING_BYTE (first_byte)))
+
+ but it's faster this way. */
+extern Bytecount rep_bytes_by_first_byte[0xA0];
#ifdef ERROR_CHECK_TYPECHECK
/* int not Bufbyte even though that is the actual type of a leading byte.
CHARSET_BY_LEADING_BYTE (int lb)
{
assert (lb >= 0x80 && lb <= 0xFF);
- return chlook->charset_by_leading_byte[lb - 128];
+ return charset_by_leading_byte[lb - 128];
}
#else
-#define CHARSET_BY_LEADING_BYTE(lb) (chlook->charset_by_leading_byte[(lb) - 128])
+#define CHARSET_BY_LEADING_BYTE(lb) (charset_by_leading_byte[(lb) - 128])
#endif
#define CHARSET_BY_ATTRIBUTES(type, final, dir) \
- (chlook->charset_by_attributes[type][final][dir])
-
-
-/* Table of number of bytes in the string representation of a character
- indexed by the first byte of that representation.
+ (charset_by_attributes[type][final][dir])
- This value can be derived in other ways -- e.g. something like
- XCHARSET_REP_BYTES (CHARSET_BY_LEADING_BYTE (first_byte))
- but it's faster this way. */
-extern const Bytecount rep_bytes_by_first_byte[0xA0];
+#ifdef ERROR_CHECK_TYPECHECK
-/* Number of bytes in the string representation of a character. */
+/* Number of bytes in the string representation of a character */
INLINE int REP_BYTES_BY_FIRST_BYTE (int fb);
INLINE int
REP_BYTES_BY_FIRST_BYTE (int fb)
{
-#ifdef ERROR_CHECK_TYPECHECK
- assert (0 <= fb && fb < 0xA0);
-#endif
+ assert (fb >= 0 && fb < 0xA0);
return rep_bytes_by_first_byte[fb];
}
+#else
+#define REP_BYTES_BY_FIRST_BYTE(fb) (rep_bytes_by_first_byte[fb])
+#endif
+
\f
/************************************************************************/
/* Dealing with characters */
else if (c < MIN_CHAR_COMPOSITION)
return CHAR_FIELD1 (c) + FIELD1_TO_PRIVATE_LEADING_BYTE;
else
- {
-#ifdef ENABLE_COMPOSITE_CHARS
- return LEADING_BYTE_COMPOSITE;
-#else
- abort();
- return 0;
-#endif /* ENABLE_COMPOSITE_CHARS */
- }
+ return LEADING_BYTE_COMPOSITE;
}
#define CHAR_CHARSET(c) CHARSET_BY_LEADING_BYTE (CHAR_LEADING_BYTE (c))
return c1;
else if (EQ (charset, Vcharset_control_1))
return c1 | 0x80;
-#ifdef ENABLE_COMPOSITE_CHARS
else if (EQ (charset, Vcharset_composite))
return (0x1F << 14) | ((c1) << 7) | (c2);
-#endif
else if (XCHARSET_DIMENSION (charset) == 1)
return ((XCHARSET_LEADING_BYTE (charset) -
FIELD2_TO_OFFICIAL_LEADING_BYTE) << 7) | (c1);
\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 */
\f
/************************************************************************/
projects / chise / xemacs-chise.git.1 / blobdiff