--- /dev/null
+/* Header for UCS-4 character representation.
+ Copyright (C) 1999 Electrotechnical Laboratory, JAPAN.
+ Licensed to the Free Software Foundation.
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* Rewritten by MORIOKA Tomohiko <tomo@m17n.org>. */
+
+#ifndef _XEMACS_CHARACTER_H
+#define _XEMACS_CHARACTER_H
+
+/************************************************************************/
+/* Definition of leading bytes */
+/************************************************************************/
+
+#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 */
+
+/** The following are for 1-byte characters in an official charset. **/
+
+#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. **/
+
+#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_CCITT_GB 0x95 /* CCITT Extended GB */
+#define LEADING_BYTE_CHINESE_BIG5_1 0x96 /* Big5 Level 1 */
+#define LEADING_BYTE_CHINESE_CNS11643_1 0x97 /* Chinese CNS11643 Set 1 */
+#define LEADING_BYTE_CHINESE_CNS11643_2 0x98 /* Chinese CNS11643 Set 2 */
+#define LEADING_BYTE_CHINESE_CNS11643_3 0x99 /* Chinese CNS11643 Set 3 */
+#define LEADING_BYTE_CHINESE_CNS11643_4 0x9A /* Chinese CNS11643 Set 4 */
+#define LEADING_BYTE_CHINESE_CNS11643_5 0x9B /* Chinese CNS11643 Set 5 */
+#define LEADING_BYTE_CHINESE_CNS11643_6 0x9C /* Chinese CNS11643 Set 6 */
+#define LEADING_BYTE_CHINESE_CNS11643_7 0x9D /* Chinese CNS11643 Set 7 */
+#define LEADING_BYTE_CHINESE_BIG5_2 0x9D /* Big5 Level 2 */
+#define LEADING_BYTE_KOREAN_KPS9566 0x9E /* DPRK Hangul KPS 9566-1997 */
+
+#define MIN_LEADING_BYTE_OFFICIAL_2 LEADING_BYTE_JAPANESE_JISX0208_1978
+#define MAX_LEADING_BYTE_OFFICIAL_2 LEADING_BYTE_CHINESE_BIG5_2
+
+/** The following are for 1- and 2-byte characters in a private charset. **/
+
+#define PRE_LEADING_BYTE_PRIVATE_1 0x9E /* 1-byte char-set */
+#define PRE_LEADING_BYTE_PRIVATE_2 0x9F /* 2-byte char-set */
+
+#define MIN_LEADING_BYTE_PRIVATE_1 0xA0
+#define MAX_LEADING_BYTE_PRIVATE_1 0xEF
+#define MIN_LEADING_BYTE_PRIVATE_2 0xF0
+#define MAX_LEADING_BYTE_PRIVATE_2 0xFF
+
+#define NUM_LEADING_BYTES 128
+
+\f
+/************************************************************************/
+/* Operations on leading bytes */
+/************************************************************************/
+
+/* Is this leading byte for a private charset? */
+
+#define LEADING_BYTE_PRIVATE_P(lb) ((lb) >= MIN_LEADING_BYTE_PRIVATE_1)
+
+/* Is this a prefix for a private leading byte? */
+
+INLINE int LEADING_BYTE_PREFIX_P (unsigned char lb);
+INLINE int
+LEADING_BYTE_PREFIX_P (unsigned char lb)
+{
+ return (lb == PRE_LEADING_BYTE_PRIVATE_1 ||
+ lb == PRE_LEADING_BYTE_PRIVATE_2);
+}
+
+/* Given a private leading byte, return the leading byte prefix stored
+ in a string */
+
+#define PRIVATE_LEADING_BYTE_PREFIX(lb) \
+ ((lb) < MIN_LEADING_BYTE_PRIVATE_2 ? \
+ PRE_LEADING_BYTE_PRIVATE_1 : \
+ PRE_LEADING_BYTE_PRIVATE_2)
+
+\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
+/************************************************************************/
+/* Operations on individual bytes */
+/* in a Mule-formatted string */
+/************************************************************************/
+
+/* Does this byte represent the first byte of a character? */
+
+#ifdef UTF2000
+INLINE int
+BUFBYTE_FIRST_BYTE_P(Bufbyte c)
+{
+ return (c <= 0x7f) || (0xc0 <= c);
+}
+#else
+#define BUFBYTE_FIRST_BYTE_P(c) ((c) < 0xA0)
+#endif
+
+/* Does this byte represent the first byte of a multi-byte character? */
+
+#define BUFBYTE_LEADING_BYTE_P(c) BYTE_C1_P (c)
+
+\f
+/************************************************************************/
+/* Information about a particular character set */
+/************************************************************************/
+
+struct Lisp_Charset
+{
+ struct lcrecord_header header;
+
+ int id;
+ Lisp_Object name;
+ Lisp_Object doc_string, registry, short_name, long_name;
+
+ Lisp_Object reverse_direction_charset;
+
+ Lisp_Object ccl_program;
+
+ /* 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;
+
+ /* Direction of this character set */
+ unsigned int direction;
+
+ /* Type of this character set (94, 96, 94x94, 96x96) */
+ unsigned int type;
+
+ /* Number of bytes used in encoding of this character set (1 or 2) */
+ unsigned int dimension;
+
+ /* Number of chars in each dimension (usually 94 or 96) */
+ unsigned int chars;
+
+ /* Which half of font to be used to display this character set */
+ unsigned int graphic;
+};
+
+DECLARE_LRECORD (charset, struct Lisp_Charset);
+#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_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_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_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_DIRECTION(cs) ((cs)->direction)
+#define CHARSET_FINAL(cs) ((cs)->final)
+#define CHARSET_DOC_STRING(cs) ((cs)->doc_string)
+#define CHARSET_REGISTRY(cs) ((cs)->registry)
+#define CHARSET_CCL_PROGRAM(cs) ((cs)->ccl_program)
+#define CHARSET_DIMENSION(cs) ((cs)->dimension)
+#define CHARSET_CHARS(cs) ((cs)->chars)
+#define CHARSET_REVERSE_DIRECTION_CHARSET(cs) ((cs)->reverse_direction_charset)
+
+
+#define CHARSET_PRIVATE_P(cs) LEADING_BYTE_PRIVATE_P (CHARSET_LEADING_BYTE (cs))
+
+#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_FINAL(cs) CHARSET_FINAL (XCHARSET (cs))
+#define XCHARSET_DOC_STRING(cs) CHARSET_DOC_STRING (XCHARSET (cs))
+#define XCHARSET_REGISTRY(cs) CHARSET_REGISTRY (XCHARSET (cs))
+#define XCHARSET_LEADING_BYTE(cs) CHARSET_LEADING_BYTE (XCHARSET (cs))
+#define XCHARSET_CCL_PROGRAM(cs) CHARSET_CCL_PROGRAM (XCHARSET (cs))
+#define XCHARSET_DIMENSION(cs) CHARSET_DIMENSION (XCHARSET (cs))
+#define XCHARSET_CHARS(cs) CHARSET_CHARS (XCHARSET (cs))
+#define XCHARSET_PRIVATE_P(cs) CHARSET_PRIVATE_P (XCHARSET (cs))
+#define XCHARSET_REVERSE_DIRECTION_CHARSET(cs) \
+ CHARSET_REVERSE_DIRECTION_CHARSET (XCHARSET (cs))
+
+/* 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
+
+ (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.
+ This way, out-ot-range values will get caught rather than automatically
+ truncated. */
+INLINE Lisp_Object CHARSET_BY_LEADING_BYTE (int lb);
+INLINE Lisp_Object
+CHARSET_BY_LEADING_BYTE (int lb)
+{
+ assert (lb >= 0x80 && lb <= 0xFF);
+ return charset_by_leading_byte[lb - 128];
+}
+
+#else
+
+#define CHARSET_BY_LEADING_BYTE(lb) (charset_by_leading_byte[(lb) - 128])
+
+#endif
+
+#define CHARSET_BY_ATTRIBUTES(type, final, dir) \
+ (charset_by_attributes[type][final][dir])
+
+#ifdef UTF2000
+INLINE int REP_BYTES_BY_FIRST_BYTE (int fb);
+INLINE int
+REP_BYTES_BY_FIRST_BYTE (int fb)
+{
+ if ( fb >= 0xfc )
+ return 6;
+ else if ( fb >= 0xf8 )
+ return 5;
+ else if ( fb >= 0xf0 )
+ return 4;
+ else if ( fb >= 0xe0 )
+ return 3;
+ else if ( fb >= 0xc0 )
+ return 2;
+ else
+ return 1;
+}
+#else /* MULE */
+#ifdef ERROR_CHECK_TYPECHECK
+
+/* 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)
+{
+ 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
+#endif /* end MULE */
+
+\f
+/************************************************************************/
+/* Dealing with characters */
+/************************************************************************/
+
+/* Is this character represented by more than one byte in a string? */
+
+#define CHAR_MULTIBYTE_P(c) ((c) >= 0x80)
+
+#define CHAR_ASCII_P(c) (!CHAR_MULTIBYTE_P (c))
+
+/* The bit fields of character are divided into 3 parts:
+ FIELD1(5bits):FIELD2(7bits):FIELD3(7bits) */
+
+#define CHAR_FIELD1_MASK (0x7F << 14)
+#define CHAR_FIELD2_MASK (0x7F << 7)
+#define CHAR_FIELD3_MASK 0x7F
+
+#define MIN_CHAR_GREEK 0x0370
+#define MAX_CHAR_GREEK 0x03CF
+
+#define MIN_CHAR_CYRILLIC 0x0400
+#define MAX_CHAR_CYRILLIC 0x045F
+
+#define MIN_CHAR_HEBREW 0x0590
+#define MAX_CHAR_HEBREW 0x05EF
+
+#define MIN_CHAR_THAI 0x0E00
+#define MAX_CHAR_THAI 0x0E5F
+
+#define MIN_CHAR_HALFWIDTH_KATAKANA 0xFF60
+#define MAX_CHAR_HALFWIDTH_KATAKANA 0xFF9F
+
+/* Macros to access each field of a character code of C. */
+
+#define CHAR_FIELD1(c) (((c) & CHAR_FIELD1_MASK) >> 14)
+#define CHAR_FIELD2_INTERNAL(c) (((c) & CHAR_FIELD2_MASK) >> 7)
+#define CHAR_FIELD3_INTERNAL(c) ((c) & CHAR_FIELD3_MASK)
+
+/* Field 1, if non-zero, usually holds a leading byte for a
+ dimension-2 charset. Field 2, if non-zero, usually holds a leading
+ byte for a dimension-1 charset. */
+
+/* Converting between field values and leading bytes. */
+
+#define FIELD2_TO_OFFICIAL_LEADING_BYTE 0x80
+#define FIELD2_TO_PRIVATE_LEADING_BYTE 0x80
+
+#define FIELD1_TO_PRIVATE_LEADING_BYTE 0xc0
+#define FIELD1_TO_OFFICIAL_LEADING_BYTE 0x50
+
+INLINE Emchar
+CHAR_FIELD2 (Emchar c)
+{
+ if( (MIN_CHAR_GREEK <= c) && (c <= MAX_CHAR_GREEK) )
+ return LEADING_BYTE_GREEK_ISO8859_7
+ - FIELD2_TO_OFFICIAL_LEADING_BYTE;
+ else if( (MIN_CHAR_CYRILLIC <= c) && (c <= MAX_CHAR_CYRILLIC) )
+ return LEADING_BYTE_CYRILLIC_ISO8859_5
+ - FIELD2_TO_OFFICIAL_LEADING_BYTE;
+ else if( (MIN_CHAR_HEBREW <= c) && (c <= MAX_CHAR_HEBREW) )
+ return LEADING_BYTE_HEBREW_ISO8859_8
+ - FIELD2_TO_OFFICIAL_LEADING_BYTE;
+ else if( (MIN_CHAR_THAI <= c) && (c <= MAX_CHAR_THAI) )
+ return LEADING_BYTE_THAI_TIS620
+ - FIELD2_TO_OFFICIAL_LEADING_BYTE;
+ else if( (MIN_CHAR_HALFWIDTH_KATAKANA <= c)
+ && (c <= MAX_CHAR_HALFWIDTH_KATAKANA) )
+ return LEADING_BYTE_KATAKANA_JISX0201
+ - FIELD2_TO_OFFICIAL_LEADING_BYTE;
+ else
+ return CHAR_FIELD2_INTERNAL(c);
+}
+
+INLINE Emchar
+CHAR_FIELD3 (Emchar c)
+{
+ if( (MIN_CHAR_GREEK <= c) && (c <= MAX_CHAR_GREEK) )
+ return c - MIN_CHAR_GREEK + 0x20;
+ else if( (MIN_CHAR_CYRILLIC <= c) && (c <= MAX_CHAR_CYRILLIC) )
+ return c - MIN_CHAR_CYRILLIC + 0x20;
+ else if( (MIN_CHAR_HEBREW <= c) && (c <= MAX_CHAR_HEBREW) )
+ return c - MIN_CHAR_HEBREW + 0x20;
+ else if( (MIN_CHAR_THAI <= c) && (c <= MAX_CHAR_THAI) )
+ return c - MIN_CHAR_THAI + 0x20;
+ else if( (MIN_CHAR_HALFWIDTH_KATAKANA <= c)
+ && (c <= MAX_CHAR_HALFWIDTH_KATAKANA) )
+ return c - MIN_CHAR_HALFWIDTH_KATAKANA + 0x20;
+ else
+ return CHAR_FIELD3_INTERNAL(c);
+}
+
+/* Minimum and maximum allowed values for the fields. */
+
+#define MIN_CHAR_FIELD2_OFFICIAL \
+ (MIN_LEADING_BYTE_OFFICIAL_1 - FIELD2_TO_OFFICIAL_LEADING_BYTE)
+#define MAX_CHAR_FIELD2_OFFICIAL \
+ (MAX_LEADING_BYTE_OFFICIAL_1 - FIELD2_TO_OFFICIAL_LEADING_BYTE)
+
+#define MIN_CHAR_FIELD1_OFFICIAL \
+ (MIN_LEADING_BYTE_OFFICIAL_2 - FIELD1_TO_OFFICIAL_LEADING_BYTE)
+#define MAX_CHAR_FIELD1_OFFICIAL \
+ (MAX_LEADING_BYTE_OFFICIAL_2 - FIELD1_TO_OFFICIAL_LEADING_BYTE)
+
+#define MIN_CHAR_FIELD2_PRIVATE \
+ (MIN_LEADING_BYTE_PRIVATE_1 - FIELD2_TO_PRIVATE_LEADING_BYTE)
+#define MAX_CHAR_FIELD2_PRIVATE \
+ (MAX_LEADING_BYTE_PRIVATE_1 - FIELD2_TO_PRIVATE_LEADING_BYTE)
+
+#define MIN_CHAR_FIELD1_PRIVATE \
+ (MIN_LEADING_BYTE_PRIVATE_2 - FIELD1_TO_PRIVATE_LEADING_BYTE)
+#define MAX_CHAR_FIELD1_PRIVATE \
+ (MAX_LEADING_BYTE_PRIVATE_2 - FIELD1_TO_PRIVATE_LEADING_BYTE)
+
+/* Minimum character code of each <type> character. */
+
+#define MULE_CHAR_PRIVATE_OFFSET (0xe0 << 16)
+
+#define MIN_CHAR_OFFICIAL_TYPE9N \
+ (MULE_CHAR_PRIVATE_OFFSET | (MIN_CHAR_FIELD2_OFFICIAL << 7))
+#define MIN_CHAR_PRIVATE_TYPE9N \
+ (MULE_CHAR_PRIVATE_OFFSET | (MIN_CHAR_FIELD2_PRIVATE << 7))
+#define MIN_CHAR_PRIVATE_TYPE9NX9N \
+ (MULE_CHAR_PRIVATE_OFFSET | (MIN_CHAR_FIELD1_PRIVATE << 14))
+#define MIN_CHAR_OFFICIAL_TYPE9NX9N \
+ (MULE_CHAR_PRIVATE_OFFSET | (MIN_CHAR_FIELD1_OFFICIAL << 14))
+#define MIN_CHAR_COMPOSITION \
+ (MULE_CHAR_PRIVATE_OFFSET | (0x7f << 14))
+
+/* Leading byte of a character.
+
+ NOTE: This takes advantage of the fact that
+ FIELD2_TO_OFFICIAL_LEADING_BYTE and
+ FIELD2_TO_PRIVATE_LEADING_BYTE are the same.
+ */
+
+INLINE Bufbyte CHAR_LEADING_BYTE (Emchar c);
+INLINE Bufbyte
+CHAR_LEADING_BYTE (Emchar c)
+{
+ if (CHAR_ASCII_P (c))
+ return LEADING_BYTE_ASCII;
+ else if (c < 0xA0)
+ return LEADING_BYTE_CONTROL_1;
+ else if (c <= 0xff)
+ return LEADING_BYTE_LATIN_ISO8859_1;
+ else if (c <= MAX_CHAR_GREEK)
+ return LEADING_BYTE_GREEK_ISO8859_7;
+ else if (c <= MAX_CHAR_CYRILLIC)
+ return LEADING_BYTE_CYRILLIC_ISO8859_5;
+ else if (c <= MAX_CHAR_HEBREW)
+ return LEADING_BYTE_HEBREW_ISO8859_8;
+ else if (c <= MAX_CHAR_THAI)
+ return LEADING_BYTE_THAI_TIS620;
+ else if (c <= MAX_CHAR_HALFWIDTH_KATAKANA)
+ return LEADING_BYTE_KATAKANA_JISX0201;
+ else if (c < MIN_CHAR_PRIVATE_TYPE9NX9N)
+ return CHAR_FIELD2 (c) + FIELD2_TO_OFFICIAL_LEADING_BYTE;
+ else if (c < MIN_CHAR_OFFICIAL_TYPE9NX9N)
+ return CHAR_FIELD1 (c) + FIELD1_TO_PRIVATE_LEADING_BYTE;
+ else if (c < MIN_CHAR_COMPOSITION)
+ return CHAR_FIELD1 (c) + FIELD1_TO_OFFICIAL_LEADING_BYTE;
+ else
+ {
+#ifdef ENABLE_COMPOSITE_CHARS
+ return LEADING_BYTE_COMPOSITE;
+#else
+ abort();
+ return 0;
+#endif /* ENABLE_COMPOSITE_CHARS */
+ }
+}
+
+#define CHAR_CHARSET(c) CHARSET_BY_LEADING_BYTE (CHAR_LEADING_BYTE (c))
+
+/* Return a character whose charset is CHARSET and position-codes
+ are C1 and C2. TYPE9N character ignores C2.
+
+ NOTE: This takes advantage of the fact that
+ FIELD2_TO_OFFICIAL_LEADING_BYTE and
+ FIELD2_TO_PRIVATE_LEADING_BYTE are the same.
+ */
+
+INLINE Emchar MAKE_CHAR (Lisp_Object charset, int c1, int c2);
+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))
+ if (c1 < 0x60)
+ return c1 + MIN_CHAR_HALFWIDTH_KATAKANA - 0x20;
+ else
+ return 32;
+#ifdef ENABLE_COMPOSITE_CHARS
+ else if (EQ (charset, Vcharset_composite))
+ return (0x1F << 14) | ((c1) << 7) | (c2);
+#endif
+ else if (XCHARSET_DIMENSION (charset) == 1)
+ return MULE_CHAR_PRIVATE_OFFSET
+ | ((XCHARSET_LEADING_BYTE (charset) -
+ FIELD2_TO_OFFICIAL_LEADING_BYTE) << 7) | (c1);
+ else if (!XCHARSET_PRIVATE_P (charset))
+ return MULE_CHAR_PRIVATE_OFFSET
+ | ((XCHARSET_LEADING_BYTE (charset) -
+ FIELD1_TO_OFFICIAL_LEADING_BYTE) << 14) | ((c1) << 7) | (c2);
+ else
+ return MULE_CHAR_PRIVATE_OFFSET
+ | ((XCHARSET_LEADING_BYTE (charset) -
+ FIELD1_TO_PRIVATE_LEADING_BYTE) << 14) | ((c1) << 7) | (c2);
+}
+
+/* The charset of character C is set to CHARSET, and the
+ position-codes of C are set to C1 and C2. C2 of TYPE9N character
+ is 0. */
+
+/* BREAKUP_CHAR_1_UNSAFE assumes that the charset has already been
+ calculated, and just computes c1 and c2.
+
+ BREAKUP_CHAR also computes and stores the charset. */
+
+#define BREAKUP_CHAR_1_UNSAFE(c, charset, c1, c2) \
+ XCHARSET_DIMENSION (charset) == 1 \
+ ? ((c1) = CHAR_FIELD3 (c), (c2) = 0) \
+ : ((c1) = CHAR_FIELD2 (c), \
+ (c2) = CHAR_FIELD3 (c))
+
+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)
+{
+ *charset = CHAR_CHARSET (c);
+ BREAKUP_CHAR_1_UNSAFE (c, *charset, *c1, *c2);
+}
+
+#define BREAKUP_CHAR(c, charset, c1, c2) \
+ breakup_char_1 (c, &(charset), &(c1), &(c2))
+
+
+\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
+/************************************************************************/
+/* Exported functions */
+/************************************************************************/
+
+EXFUN (Ffind_charset, 1);
+EXFUN (Fget_charset, 1);
+
+extern Lisp_Object Vcharset_chinese_big5_1;
+extern Lisp_Object Vcharset_chinese_big5_2;
+extern Lisp_Object Vcharset_japanese_jisx0208;
+
+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_CHARACTER_H */
projects / chise / xemacs-chise.git.1 / commitdiff