#endif /* emacs */
-Lisp_Object Qcharset, Qascii;
+Lisp_Object Qcharset, Qascii, Qeight_bit_control, Qeight_bit_graphic;
Lisp_Object Qunknown;
/* Declaration of special leading-codes. */
int leading_code_private_21; /* for private DIMENSION2 of 1-column */
int leading_code_private_22; /* for private DIMENSION2 of 2-column */
-/* Declaration of special charsets. */
-int charset_ascii; /* ASCII */
+/* Declaration of special charsets. The values are set by
+ Fsetup_special_charsets. */
int charset_latin_iso8859_1; /* ISO8859-1 (Latin-1) */
int charset_jisx0208_1978; /* JISX0208.1978 (Japanese Kanji old set) */
int charset_jisx0208; /* JISX0208.1983 (Japanese Kanji) */
error ("Invalid character: 0%o, %d, 0x%x", c, c, c);
}
-/* Parse a multibyte character string STR of length LENGTH (>= 2) set
- BYTES to the length of actual multibyte sequence, CHARSET, C1, and
- C2 to such values that MAKE_CHAR can make the multibyte character
- from them.
-
- It is assumed that *STR is one of base leading codes and the
- following (LENGTH - 1) bytes satisfy !CHAR_HEAD_P.
-
- This macro should be called only from SPLIT_MULTIBYTE_SEQ. */
-
-#define SPLIT_CHARACTER_SEQ(str, length, bytes, charset, c1, c2) \
- do { \
- (bytes) = 1; \
- (charset) = (str)[0]; \
- if ((charset) >= LEADING_CODE_PRIVATE_11 \
- && (charset) <= LEADING_CODE_PRIVATE_22) \
- (charset) = (str)[(bytes)++]; \
- if ((bytes) < (length)) \
- { \
- (c1) = (str)[(bytes)++] & 0x7F; \
- if ((bytes) < (length)) \
- (c2) = (str)[(bytes)++] & 0x7F; \
- else \
- (c2) = -1; \
- } \
- else \
- (c1) = (c2) = -1; \
- } while (0)
-
-/* Parse string STR of length LENGTH and check if a multibyte
- characters is at STR. Set BYTES to the actual length, CHARSET, C1,
- C2 to proper values for that character. */
-
-#define SPLIT_MULTIBYTE_SEQ(str, length, bytes, charset, c1, c2) \
- do { \
- int i; \
- if (ASCII_BYTE_P ((str)[0])) \
- i = 1; \
- else \
- for (i = 1; i < (length) && ! CHAR_HEAD_P ((str)[i]); i++); \
- if (i == 1) \
- (bytes) = 1, (charset) = CHARSET_ASCII, (c1) = (str)[0] ; \
- else \
- { \
- if (i > BYTES_BY_CHAR_HEAD ((str)[0])) \
- i = BYTES_BY_CHAR_HEAD ((str)[0]); \
- SPLIT_CHARACTER_SEQ (str, i, bytes, charset, c1, c2); \
- } \
+/* Parse string STR of length LENGTH and fetch information of a
+ character at STR. Set BYTES to the byte length the character
+ occupies, CHARSET, C1, C2 to proper values of the character. */
+
+#define SPLIT_MULTIBYTE_SEQ(str, length, bytes, charset, c1, c2) \
+ do { \
+ (c1) = *(str); \
+ (bytes) = BYTES_BY_CHAR_HEAD (c1); \
+ if ((bytes) == 1) \
+ (charset) = ASCII_BYTE_P (c1) ? CHARSET_ASCII : CHARSET_8_BIT_GRAPHIC; \
+ else if ((bytes) == 2) \
+ { \
+ if ((c1) == LEADING_CODE_8_BIT_CONTROL) \
+ (charset) = CHARSET_8_BIT_CONTROL, (c1) = (str)[1] - 0x20; \
+ else \
+ (charset) = (c1), (c1) = (str)[1] & 0x7F; \
+ } \
+ else if ((bytes) == 3) \
+ { \
+ if ((c1) < LEADING_CODE_PRIVATE_11) \
+ (charset) = (c1), (c1) = (str)[1] & 0x7F, (c2) = (str)[2] & 0x7F; \
+ else \
+ (charset) = (str)[1], (c1) = (str)[2] & 0x7F; \
+ } \
+ else \
+ (charset) = (str)[1], (c1) = (str)[2] & 0x7F, (c2) = (str)[3] & 0x7F; \
} while (0)
/* 1 if CHARSET, C1, and C2 compose a valid character, else 0. */
#define CHAR_COMPONENTS_VALID_P(charset, c1, c2) \
- (charset == CHARSET_ASCII \
+ ((charset) == CHARSET_ASCII \
? ((c1) >= 0 && (c1) <= 0x7F) \
- : (CHARSET_DIMENSION (charset) == 1 \
- ? ((c1) >= 0x20 && (c1) <= 0x7F) \
- : ((c1) >= 0x20 && (c1) <= 0x7F && (c2) >= 0x20 && (c2) <= 0x7F)))
+ : ((charset) == CHARSET_8_BIT_CONTROL \
+ ? ((c1) >= 0x80 && (c1) <= 0x9F) \
+ : ((charset) == CHARSET_8_BIT_GRAPHIC \
+ ? ((c1) >= 0x80 && (c1) <= 0xFF) \
+ : (CHARSET_DIMENSION (charset) == 1 \
+ ? ((c1) >= 0x20 && (c1) <= 0x7F) \
+ : ((c1) >= 0x20 && (c1) <= 0x7F \
+ && (c2) >= 0x20 && (c2) <= 0x7F)))))
/* Store multi-byte form of the character C in STR. The caller should
allocate at least 4-byte area at STR in advance. Returns the
/* If C still has any modifier bits, it is an invalid character. */
if (c & CHAR_MODIFIER_MASK)
invalid_character (c);
-
- *p++ = c;
+ }
+ if (SINGLE_BYTE_CHAR_P (c))
+ {
+ if (ASCII_BYTE_P (c) || c >= 0xA0)
+ *p++ = c;
+ else
+ {
+ *p++ = LEADING_CODE_8_BIT_CONTROL;
+ *p++ = c + 0x20;
+ }
}
else if (c < MAX_CHAR)
{
int charset, c1, c2;
- SPLIT_NON_ASCII_CHAR (c, charset, c1, c2);
+ SPLIT_CHAR (c, charset, c1, c2);
if (charset >= LEADING_CODE_EXT_11)
*p++ = (charset < LEADING_CODE_EXT_12
*p++ = c2 | 0x80;
}
}
+ else
+ invalid_character (c);
- return (p -str);
+ return (p - str);
}
/* Return the non-ASCII character corresponding to multi-byte form at
{
int charset, c1, c2, chars;
- if (SINGLE_BYTE_CHAR_P (c))
+ if (ASCII_BYTE_P (c))
return 1;
- if (c >= MAX_CHAR)
+ else if (SINGLE_BYTE_CHAR_P (c))
+ return 0;
+ else if (c >= MAX_CHAR)
return 0;
- SPLIT_NON_ASCII_CHAR (c, charset, c1, c2);
+ SPLIT_CHAR (c, charset, c1, c2);
if (! CHARSET_DEFINED_P (charset))
return 0;
if (CHARSET_CHARS (charset) == 94
if (charset < MIN_CHARSET_PRIVATE_DIMENSION1)
{
/* Official charset, it doesn't have an extended leading-code. */
- if (charset != CHARSET_ASCII)
+ if (charset != CHARSET_ASCII && charset != CHARSET_8_BIT_GRAPHIC)
bytes += 1; /* For a base leading-code. */
leading_code_base = charset;
leading_code_ext = 0;
leading_code_ext = charset;
}
- if (BYTES_BY_CHAR_HEAD (leading_code_base) != bytes)
+ if (charset != CHARSET_ASCII && charset != CHARSET_8_BIT_GRAPHIC
+ &&BYTES_BY_CHAR_HEAD (leading_code_base) != bytes)
error ("Invalid dimension for the charset-ID %d", charset);
CHARSET_TABLE_INFO (charset, CHARSET_ID_IDX) = charset_id;
}
/* Update table iso_charset_table. */
- if (ISO_CHARSET_TABLE (dimension, chars, iso_final_char) < 0)
+ if (iso_final_char >= 0
+ && ISO_CHARSET_TABLE (dimension, chars, iso_final_char) < 0)
ISO_CHARSET_TABLE (dimension, chars, iso_final_char) = charset;
}
\n\
ISO-FINAL-CHAR (character) is the final character of the\n\
corresponding ISO 2022 charset.\n\
+It may be -1 if the charset is internal use only.\n\
\n\
ISO-GRAPHIC-PLANE (integer) is the graphic plane to be invoked\n\
while encoding to variants of ISO 2022 coding system, one of the\n\
following: 0/graphic-plane-left(GL), 1/graphic-plane-right(GR).\n\
+It may be -1 if the charset is internal use only.\n\
\n\
SHORT-NAME (string) is the short name to refer to the charset.\n\
\n\
|| !INTEGERP (vec[1]) || !(XINT (vec[1]) == 94 || XINT (vec[1]) == 96)
|| !INTEGERP (vec[2]) || !(XINT (vec[2]) == 1 || XINT (vec[2]) == 2)
|| !INTEGERP (vec[3]) || !(XINT (vec[3]) == 0 || XINT (vec[3]) == 1)
- || !INTEGERP (vec[4]) || !(XINT (vec[4]) >= '0' && XINT (vec[4]) <= '~')
- || !INTEGERP (vec[5]) || !(XINT (vec[5]) == 0 || XINT (vec[5]) == 1)
+ || !INTEGERP (vec[4])
+ || !(XINT (vec[4]) == -1 || XINT (vec[4]) >= '0' && XINT (vec[4]) <= '~')
+ || !INTEGERP (vec[5])
+ || !(XINT (vec[5]) == -1 || XINT (vec[5]) == 0 || XINT (vec[5]) == 1)
|| !STRINGP (vec[6])
|| !STRINGP (vec[7])
|| !STRINGP (vec[8]))
return Qnil;
}
-/* Return number of different charsets in STR of length LEN. In
- addition, for each found charset N, CHARSETS[N] is set 1. The
- caller should allocate CHARSETS (MAX_CHARSET + 1 elements) in advance.
- It may lookup a translation table TABLE if supplied.
+/* Return information about charsets in the text at PTR of NBYTES
+ bytes, which are NCHARS characters. The value is:
+ 0: No multibyte characters (including 8-bit code of range 0x80..0x9F)
+ are found.
+ 1: No charsets other than ascii eight-bit-control,
+ eight-bit-graphic, and latin-1 are found.
+ 2: Otherwise.
- If MULTIBYTE is zero, do not check multibyte characters, i.e. if
- any ASCII codes (7-bit) are found, CHARSET[0] is set to 1, if any
- 8-bit codes are found CHARSET[1] is set to 1. */
+ In addition, if CHARSETS is nonzero, for each found charset N, set
+ CHARSETS[N] to 1. For that, callers should allocate CHARSETS
+ (MAX_CHARSET + 1 elements) in advance. It may lookup a translation
+ table TABLE if supplied. For invalid charsets, set CHARSETS[1] to
+ 1 (note that there's no charset whose ID is 1). */
int
-find_charset_in_str (str, len, charsets, table, multibyte)
- unsigned char *str;
- int len, *charsets;
+find_charset_in_text (ptr, nchars, nbytes, charsets, table)
+ unsigned char *ptr;
+ int nchars, nbytes, *charsets;
Lisp_Object table;
- int multibyte;
{
- register int num = 0;
-
- if (! multibyte)
+ if (nchars == nbytes)
{
- unsigned char *endp = str + len;
- int maskbits = 0;
-
- while (str < endp && maskbits != 3)
- maskbits |= (*str++ < 0x80 ? 1 : 2);
- if (maskbits & 1)
- {
- charsets[0] = 1;
- num++;
- }
- if (maskbits & 2)
+ if (charsets && nbytes > 0)
{
- charsets[1] = 1;
- num++;
+ unsigned char *endp = ptr + nbytes;
+ int maskbits = 0;
+
+ while (ptr < endp && maskbits != 7)
+ {
+ maskbits |= (*ptr < 0x80 ? 1 : *ptr < 0xA0 ? 2 : 4);
+ ptr++;
+ }
+
+ if (maskbits & 1)
+ charsets[CHARSET_ASCII] = 1;
+ if (maskbits & 2)
+ charsets[CHARSET_8_BIT_CONTROL] = 1;
+ if (maskbits & 4)
+ charsets[CHARSET_8_BIT_GRAPHIC] = 1;
}
- return num;
+ return 0;
}
-
- if (! CHAR_TABLE_P (table))
- table = Qnil;
-
- while (len > 0)
+ else
{
+ int return_val = 1;
int bytes, charset, c1, c2;
- SPLIT_MULTIBYTE_SEQ (str, len, bytes, charset, c1, c2);
+ if (! CHAR_TABLE_P (table))
+ table = Qnil;
- if (! NILP (table))
+ while (nchars-- > 0)
{
- int c1 = translate_char (table, -1, charset, c1, c2);
- if (c1 >= 0)
- charset = CHAR_CHARSET (c1);
- }
+ SPLIT_MULTIBYTE_SEQ (ptr, len, bytes, charset, c1, c2);
+ ptr += bytes;
- if (!charsets[charset])
- {
- charsets[charset] = 1;
- num += 1;
+ if (!CHARSET_DEFINED_P (charset))
+ charset = 1;
+ else if (! NILP (table))
+ {
+ int c = translate_char (table, -1, charset, c1, c2);
+ if (c >= 0)
+ charset = CHAR_CHARSET (c);
+ }
+
+ if (return_val == 1
+ && charset != CHARSET_ASCII
+ && charset != CHARSET_8_BIT_CONTROL
+ && charset != CHARSET_8_BIT_GRAPHIC
+ && charset != charset_latin_iso8859_1)
+ return_val = 2;
+
+ if (charsets)
+ charsets[charset] = 1;
+ else if (return_val == 2)
+ break;
}
- str += bytes;
- len -= bytes;
+ return return_val;
}
- return num;
}
DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region,
If the region contains invalid multiybte characters,\n\
`unknown' is included in the returned list.\n\
\n\
-If the current buffer is unibyte, the returned list contains\n\
-`ascii' if any 7-bit characters are found,\n\
-and `unknown' if any 8-bit characters are found.")
+If the current buffer is unibyte, the returned list may contain\n\
+only `ascii', `eight-bit-control', and `eight-bit-graphic'.")
(beg, end, table)
Lisp_Object beg, end, table;
{
int charsets[MAX_CHARSET + 1];
int from, from_byte, to, stop, stop_byte, i;
Lisp_Object val;
- int undefined;
- int multibyte = !NILP (current_buffer->enable_multibyte_characters);
validate_region (&beg, &end);
from = XFASTINT (beg);
bzero (charsets, (MAX_CHARSET + 1) * sizeof (int));
while (1)
{
- find_charset_in_str (BYTE_POS_ADDR (from_byte), stop_byte - from_byte,
- charsets, table, multibyte);
+ find_charset_in_text (BYTE_POS_ADDR (from_byte), stop - from,
+ stop_byte - from_byte, charsets, table);
if (stop < to)
{
from = stop, from_byte = stop_byte;
}
val = Qnil;
- undefined = 0;
- for (i = (multibyte ? MAX_CHARSET : 1); i >= 0; i--)
- if (charsets[i])
- {
- if (CHARSET_DEFINED_P (i))
- val = Fcons (CHARSET_SYMBOL (i), val);
- else
- undefined = 1;
- }
- if (undefined)
+ if (charsets[1])
val = Fcons (Qunknown, val);
+ for (i = MAX_CHARSET; i >= MIN_CHARSET_OFFICIAL_DIMENSION1; i--)
+ if (charsets[i])
+ val = Fcons (CHARSET_SYMBOL (i), val);
+ if (charsets[0])
+ val = Fcons (Qascii, val);
return val;
}
If the region contains invalid multiybte characters,\n\
`unknown' is included in the returned list.\n\
\n\
-If STR is unibyte, the returned list contains\n\
-`ascii' if any 7-bit characters are found,\n\
-and `unknown' if any 8-bit characters are found.")
+If STR is unibyte, the returned list may contain\n\
+only `ascii', `eight-bit-control', and `eight-bit-graphic'.")
(str, table)
Lisp_Object str, table;
{
int charsets[MAX_CHARSET + 1];
int i;
Lisp_Object val;
- int undefined;
- int multibyte;
CHECK_STRING (str, 0);
- multibyte = STRING_MULTIBYTE (str);
bzero (charsets, (MAX_CHARSET + 1) * sizeof (int));
- find_charset_in_str (XSTRING (str)->data, STRING_BYTES (XSTRING (str)),
- charsets, table, multibyte);
+ find_charset_in_text (XSTRING (str)->data, XSTRING (str)->size,
+ STRING_BYTES (XSTRING (str)), charsets, table);
+
val = Qnil;
- undefined = 0;
- for (i = (multibyte ? MAX_CHARSET : 1); i >= 0; i--)
- if (charsets[i])
- {
- if (CHARSET_DEFINED_P (i))
- val = Fcons (CHARSET_SYMBOL (i), val);
- else
- undefined = 1;
- }
- if (undefined)
+ if (charsets[1])
val = Fcons (Qunknown, val);
+ for (i = MAX_CHARSET; i >= MIN_CHARSET_OFFICIAL_DIMENSION1; i--)
+ if (charsets[i])
+ val = Fcons (CHARSET_SYMBOL (i), val);
+ if (charsets[0])
+ val = Fcons (Qascii, val);
return val;
}
+
\f
DEFUN ("make-char-internal", Fmake_char_internal, Smake_char_internal, 1, 3, 0,
"")
c2 = XINT (code2);
}
- if (c1 < 0 || c1 > 0xFF || c2 < 0 || c2 > 0xFF)
- error ("Invalid code points for charset ID %d: %d %d", charset_id, c1, c2);
+ if (charset_id == CHARSET_ASCII)
+ {
+ if (c1 < 0 || c1 > 0x7F)
+ goto invalid_code_posints;
+ return make_number (c1);
+ }
+ else if (charset_id == CHARSET_8_BIT_CONTROL)
+ {
+ if (c1 < 0x80 || c1 > 0x9F)
+ goto invalid_code_posints;
+ return make_number (c1);
+ }
+ else if (charset_id == CHARSET_8_BIT_GRAPHIC)
+ {
+ if (c1 < 0xA0 || c1 > 0xFF)
+ goto invalid_code_posints;
+ return make_number (c1);
+ }
+ else if (c1 < 0 || c1 > 0xFF || c2 < 0 || c2 > 0xFF)
+ goto invalid_code_posints;
c1 &= 0x7F;
c2 &= 0x7F;
if (c1 == 0
: (c2 == 0
? !CHAR_COMPONENTS_VALID_P (charset_id, c1, 0x20)
: !CHAR_COMPONENTS_VALID_P (charset_id, c1, c2)))
- error ("Invalid code points for charset ID %d: %d %d", charset_id, c1, c2);
-
+ goto invalid_code_posints;
return make_number (MAKE_CHAR (charset_id, c1, c2));
+
+ invalid_code_posints:
+ error ("Invalid code points for charset ID %d: %d %d", charset_id, c1, c2);
}
DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0,
(pos)
Lisp_Object pos;
{
- register int pos_byte, bytes, charset, c1, c2;
- register unsigned char *p;
-
- if (NILP (pos))
- pos_byte = PT_BYTE;
- else if (MARKERP (pos))
- {
- pos_byte = marker_byte_position (pos);
- if (pos_byte < BEGV_BYTE || pos_byte >= ZV_BYTE)
- return Qnil;
- }
- else
- {
- CHECK_NUMBER (pos, 0);
- if (XINT (pos) < BEGV || XINT (pos) >= ZV)
- return Qnil;
- pos_byte = CHAR_TO_BYTE (XINT (pos));
- }
- p = BYTE_POS_ADDR (pos_byte);
- if (BASE_LEADING_CODE_P (*p))
- {
- SPLIT_MULTIBYTE_SEQ (p, Z_BYTE - pos_byte, bytes, charset, c1, c2);
- if (charset < 0)
- charset = 1;
- }
- else
- charset = CHARSET_ASCII;
+ Lisp_Object ch;
+ int charset;
+ ch = Fchar_after (pos);
+ if (! INTEGERP (ch))
+ return ch;
+ charset = CHAR_CHARSET (XINT (ch));
return CHARSET_SYMBOL (charset);
}
return 0;
if (SINGLE_BYTE_CHAR_P (c))
return 1;
- SPLIT_NON_ASCII_CHAR (c, charset, c1, c2);
+ SPLIT_CHAR (c, charset, c1, c2);
if (genericp)
{
if (c1)
{
int charset;
- if (SINGLE_BYTE_CHAR_P (c) || (c & ~((1 << CHARACTERBITS) - 1)))
+ if (ASCII_BYTE_P (c) || (c & ~((1 << CHARACTERBITS) -1)))
+ return 1;
+ if (SINGLE_BYTE_CHAR_P (c) && c >= 0xA0)
return 1;
charset = CHAR_CHARSET (c);
while (ptr < endp)
{
- if (BASE_LEADING_CODE_P (*ptr))
+ PARSE_MULTIBYTE_SEQ (ptr, endp - ptr, bytes);
+ ptr += bytes;
+ chars++;
+ }
+
+ return chars;
+}
+
+/* Parse unibyte text at STR of LEN bytes as a multibyte text, and
+ count the numbers of characters and bytes in it. On counting
+ bytes, pay attention to that 8-bit characters in the range
+ 0x80..0x9F are represented by 2-byte in a multibyte text. */
+void
+parse_str_as_multibyte (str, len, nchars, nbytes)
+ unsigned char *str;
+ int len, *nchars, *nbytes;
+{
+ unsigned char *endp = str + len;
+ int n, chars = 0, bytes = 0;
+
+ while (str < endp)
+ {
+ if (UNIBYTE_STR_AS_MULTIBYTE_P (str, endp - str, n))
+ str += n, bytes += n;
+ else
+ str++, bytes += 2;
+ chars++;
+ }
+ *nchars = chars;
+ *nbytes = bytes;
+ return;
+}
+
+/* Arrange unibyte text at STR of NBYTES bytes as a multibyte text.
+ It actually converts only 8-bit characters in the range 0x80..0x9F
+ that don't contruct multibyte characters to multibyte forms. If
+ NCHARS is nonzero, set *NCHARS to the number of characters in the
+ text. It is assured that we can use LEN bytes at STR as a work
+ area and that is enough. Return the number of bytes of the
+ resulting text. */
+
+int
+str_as_multibyte (str, len, nbytes, nchars)
+ unsigned char *str;
+ int len, nbytes, *nchars;
+{
+ unsigned char *p = str, *endp = str + nbytes;
+ unsigned char *to;
+ int chars = 0;
+ int n;
+
+ while (p < endp && UNIBYTE_STR_AS_MULTIBYTE_P (p, endp - p, n))
+ p += n, chars++;
+ if (nchars)
+ *nchars = chars;
+ if (p == endp)
+ return nbytes;
+
+ to = p;
+ nbytes = endp - p;
+ endp = str + len;
+ safe_bcopy (p, endp - nbytes, nbytes);
+ p = endp - nbytes;
+ while (p < endp)
+ {
+ if (UNIBYTE_STR_AS_MULTIBYTE_P (p, endp - p, n))
{
- PARSE_MULTIBYTE_SEQ (ptr, nbytes, bytes);
- ptr += bytes;
- nbytes -= bytes;
- }
+ while (n--)
+ *to++ = *p++;
+ }
else
{
- ptr++;
- nbytes--;
+ *to++ = LEADING_CODE_8_BIT_CONTROL;
+ *to++ = *p++ + 0x20;
}
chars++;
}
+ if (nchars)
+ *nchars = chars;
+ return (to - str);
+}
- return chars;
+/* Convert unibyte text at STR of NBYTES bytes to a multibyte text
+ that contains the same single-byte characters. It actually
+ converts all 8-bit characters to multibyte forms. It is assured
+ that we can use LEN bytes at STR as a work area and that is
+ enough. */
+
+int
+str_to_multibyte (str, len, bytes)
+ unsigned char *str;
+ int len, bytes;
+{
+ unsigned char *p = str, *endp = str + bytes;
+ unsigned char *to;
+ int c;
+
+ while (p < endp && (*p < 0x80 || *p >= 0xA0)) p++;
+ if (p == endp)
+ return bytes;
+ to = p;
+ bytes = endp - p;
+ endp = str + len;
+ safe_bcopy (p, endp - bytes, bytes);
+ p = endp - bytes;
+ while (p < endp)
+ {
+ if (*p < 0x80 || *p >= 0xA0)
+ *to++ = *p++;
+ else
+ *to++ = LEADING_CODE_8_BIT_CONTROL, *to++ = *p++ + 0x20;
+ }
+ return (to - str);
}
+/* Arrange multibyte text at STR of LEN bytes as a unibyte text. It
+ actually converts only 8-bit characters in the range 0x80..0x9F to
+ unibyte forms. */
+
+int
+str_as_unibyte (str, bytes)
+ unsigned char *str;
+ int bytes;
+{
+ unsigned char *p = str, *endp = str + bytes;
+ unsigned char *to = str;
+
+ while (p < endp && *p != LEADING_CODE_8_BIT_CONTROL) p++;
+ to = p;
+ while (p < endp)
+ {
+ if (*p == LEADING_CODE_8_BIT_CONTROL)
+ *to++ = *(p + 1) - 0x20, p += 2;
+ else
+ *to++ = *p++;
+ }
+ return (to - str);
+}
+
+\f
DEFUN ("string", Fstring, Sstring, 1, MANY, 0,
"Concatenate all the argument characters and make the result a string.")
(n, args)
int i;
unsigned char *buf = (unsigned char *) alloca (MAX_MULTIBYTE_LENGTH * n);
unsigned char *p = buf;
- Lisp_Object val;
- int c, multibyte_p = 0;
+ int c;
for (i = 0; i < n; i++)
{
CHECK_NUMBER (args[i], 0);
c = XINT (args[i]);
p += CHAR_STRING (c, p);
-
- if (!SINGLE_BYTE_CHAR_P (c))
- multibyte_p = 1;
}
- /* Here, we can't use make_string_from_bytes because of the byte
- combining problem. Make a multibyte string if there is any
- multibyte character in ARGS to make sure that `(string 2276)'
- returns a multibyte string if running --unibyte. */
- if (multibyte_p)
- val = make_multibyte_string (buf, n, p - buf);
- else
- val = make_unibyte_string (buf, p - buf);
- return val;
+ return make_string_from_bytes (buf, n, p - buf);
}
#endif /* emacs */
iso_charset_table [i][j][k] = -1;
for (i = 0; i < 256; i++)
- BYTES_BY_CHAR_HEAD (i) = 1;
+ bytes_by_char_head[i] = 1;
for (i = MIN_CHARSET_OFFICIAL_DIMENSION1;
i <= MAX_CHARSET_OFFICIAL_DIMENSION1; i++)
- BYTES_BY_CHAR_HEAD (i) = 2;
+ bytes_by_char_head[i] = 2;
for (i = MIN_CHARSET_OFFICIAL_DIMENSION2;
i <= MAX_CHARSET_OFFICIAL_DIMENSION2; i++)
- BYTES_BY_CHAR_HEAD (i) = 3;
- BYTES_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_11) = 3;
- BYTES_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_12) = 3;
- BYTES_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_21) = 4;
- BYTES_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_22) = 4;
- /* The followings don't reflect the actual bytes, but just to tell
- that it is a start of a multibyte character. */
- BYTES_BY_CHAR_HEAD (0x80) = 2;
- BYTES_BY_CHAR_HEAD (0x9E) = 2;
- BYTES_BY_CHAR_HEAD (0x9F) = 2;
+ bytes_by_char_head[i] = 3;
+ bytes_by_char_head[LEADING_CODE_PRIVATE_11] = 3;
+ bytes_by_char_head[LEADING_CODE_PRIVATE_12] = 3;
+ bytes_by_char_head[LEADING_CODE_PRIVATE_21] = 4;
+ bytes_by_char_head[LEADING_CODE_PRIVATE_22] = 4;
+ bytes_by_char_head[LEADING_CODE_8_BIT_CONTROL] = 2;
for (i = 0; i < 128; i++)
- WIDTH_BY_CHAR_HEAD (i) = 1;
+ width_by_char_head[i] = 1;
for (; i < 256; i++)
- WIDTH_BY_CHAR_HEAD (i) = 4;
- WIDTH_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_11) = 1;
- WIDTH_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_12) = 2;
- WIDTH_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_21) = 1;
- WIDTH_BY_CHAR_HEAD (LEADING_CODE_PRIVATE_22) = 2;
+ width_by_char_head[i] = 4;
+ width_by_char_head[LEADING_CODE_PRIVATE_11] = 1;
+ width_by_char_head[LEADING_CODE_PRIVATE_12] = 2;
+ width_by_char_head[LEADING_CODE_PRIVATE_21] = 1;
+ width_by_char_head[LEADING_CODE_PRIVATE_22] = 2;
{
Lisp_Object val;
void
syms_of_charset ()
{
+ Qcharset = intern ("charset");
+ staticpro (&Qcharset);
+
Qascii = intern ("ascii");
staticpro (&Qascii);
- Qcharset = intern ("charset");
- staticpro (&Qcharset);
+ Qeight_bit_control = intern ("eight-bit-control");
+ staticpro (&Qeight_bit_control);
+
+ Qeight_bit_graphic = intern ("eight-bit-graphic");
+ staticpro (&Qeight_bit_graphic);
- /* Define ASCII charset now. */
+ /* Define special charsets ascii, eight-bit-control, and
+ eight-bit-graphic. */
update_charset_table (make_number (CHARSET_ASCII),
make_number (1), make_number (94),
make_number (1),
CHARSET_SYMBOL (CHARSET_ASCII) = Qascii;
Fput (Qascii, Qcharset, CHARSET_TABLE_ENTRY (CHARSET_ASCII));
+ update_charset_table (make_number (CHARSET_8_BIT_CONTROL),
+ make_number (1), make_number (96),
+ make_number (4),
+ make_number (0),
+ make_number (-1),
+ make_number (-1),
+ build_string ("8-bit control code (0x80..0x9F)"),
+ build_string ("8-bit control code (0x80..0x9F)"),
+ build_string ("8-bit control code (0x80..0x9F)"));
+ CHARSET_SYMBOL (CHARSET_8_BIT_CONTROL) = Qeight_bit_control;
+ Fput (Qeight_bit_control, Qcharset,
+ CHARSET_TABLE_ENTRY (CHARSET_8_BIT_CONTROL));
+
+ update_charset_table (make_number (CHARSET_8_BIT_GRAPHIC),
+ make_number (1), make_number (96),
+ make_number (4),
+ make_number (0),
+ make_number (-1),
+ make_number (-1),
+ build_string ("8-bit graphic char"),
+ build_string ("8-bit graphic char (0xA0..0xFF)"),
+ build_string ("8-bit graphic char (0xA0..0xFF)"));
+ CHARSET_SYMBOL (CHARSET_8_BIT_GRAPHIC) = Qeight_bit_graphic;
+ Fput (Qeight_bit_graphic, Qcharset,
+ CHARSET_TABLE_ENTRY (CHARSET_8_BIT_GRAPHIC));
+
Qauto_fill_chars = intern ("auto-fill-chars");
staticpro (&Qauto_fill_chars);
Fput (Qauto_fill_chars, Qchar_table_extra_slots, make_number (0));
DEFVAR_LISP ("charset-list", &Vcharset_list,
"List of charsets ever defined.");
- Vcharset_list = Fcons (Qascii, Qnil);
+ Vcharset_list = Fcons (Qascii, Fcons (Qeight_bit_control,
+ Fcons (Qeight_bit_graphic, Qnil)));
DEFVAR_LISP ("translation-table-vector", &Vtranslation_table_vector,
"Vector of cons cell of a symbol and translation table ever defined.\n\
projects / emacs.git / commitdiff