/* Basic multilingual character support.
- Copyright (C) 1995, 1997, 1998 Electrotechnical Laboratory, JAPAN.
- Licensed to the Free Software Foundation.
+ Copyright (C) 2001, 2002, 2003, 2004, 2005,
+ 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007
+ National Institute of Advanced Industrial Science and Technology (AIST)
+ Registration Number H14PRO021
This file is part of GNU Emacs.
GNU Emacs 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* At first, see the document in `charset.h' to understand the code in
this file. */
#include "lisp.h"
#include "buffer.h"
#include "charset.h"
+#include "composite.h"
#include "coding.h"
#include "disptab.h"
Lisp_Object Qunknown;
/* Declaration of special leading-codes. */
-int leading_code_private_11; /* for private DIMENSION1 of 1-column */
-int leading_code_private_12; /* for private DIMENSION1 of 2-column */
-int leading_code_private_21; /* for private DIMENSION2 of 1-column */
-int leading_code_private_22; /* for private DIMENSION2 of 2-column */
+EMACS_INT leading_code_private_11; /* for private DIMENSION1 of 1-column */
+EMACS_INT leading_code_private_12; /* for private DIMENSION1 of 2-column */
+EMACS_INT leading_code_private_21; /* for private DIMENSION2 of 1-column */
+EMACS_INT leading_code_private_22; /* for private DIMENSION2 of 2-column */
/* Declaration of special charsets. The values are set by
Fsetup_special_charsets. */
int charset_latin_jisx0201; /* JISX0201.Roman (Japanese Roman) */
int charset_big5_1; /* Big5 Level 1 (Chinese Traditional) */
int charset_big5_2; /* Big5 Level 2 (Chinese Traditional) */
+int charset_mule_unicode_0100_24ff;
+int charset_mule_unicode_2500_33ff;
+int charset_mule_unicode_e000_ffff;
Lisp_Object Qcharset_table;
int _fetch_multibyte_char_len;
/* Offset to add to a non-ASCII value when inserting it. */
-int nonascii_insert_offset;
+EMACS_INT nonascii_insert_offset;
/* Translation table for converting non-ASCII unibyte characters
to multibyte codes, or nil. */
/* List of all possible generic characters. */
Lisp_Object Vgeneric_character_list;
-#define min(X, Y) ((X) < (Y) ? (X) : (Y))
-#define max(X, Y) ((X) > (Y) ? (X) : (Y))
\f
void
invalid_character (c)
int c;
{
- error ("Invalid character: 0%o, %d, 0x%x", c, c, c);
+ error ("Invalid character: %d, #o%o, #x%x", c, c, c);
}
/* Parse string STR of length LENGTH and fetch information of a
(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. */
+/* 1 if CHARSET, C1, and C2 compose a valid character, else 0.
+ Note that this intentionally allows invalid components, such
+ as 0xA0 0xA0, because there exist many files that contain
+ such invalid byte sequences, especially in EUC-GB. */
#define CHAR_COMPONENTS_VALID_P(charset, c1, c2) \
((charset) == CHARSET_ASCII \
? ((c1) >= 0 && (c1) <= 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
length of the multi-byte form. If C is an invalid character code,
- signal an error.
-
- Use macro `CHAR_STRING (C, STR)' instead of calling this function
- directly if C can be an ASCII character. */
+ return -1. */
int
-char_to_string (c, str)
+char_to_string_1 (c, str)
int c;
unsigned char *str;
{
{
/* Multibyte character can't have a modifier bit. */
if (! SINGLE_BYTE_CHAR_P ((c & ~CHAR_MODIFIER_MASK)))
- invalid_character (c);
+ return -1;
/* For Meta, Shift, and Control modifiers, we need special care. */
if (c & CHAR_META)
c &= (037 | (~0177 & ~CHAR_CTL));
}
- /* If C still has any modifier bits, it is an invalid character. */
- if (c & CHAR_MODIFIER_MASK)
- invalid_character (c);
+ /* If C still has any modifier bits, just ignore it. */
+ c &= ~CHAR_MODIFIER_MASK;
}
+
if (SINGLE_BYTE_CHAR_P (c))
{
if (ASCII_BYTE_P (c) || c >= 0xA0)
*p++ = c + 0x20;
}
}
- else if (CHAR_VALID_P (c))
+ else if (CHAR_VALID_P (c, 0))
{
int charset, c1, c2;
? LEADING_CODE_PRIVATE_21
: LEADING_CODE_PRIVATE_22)));
*p++ = charset;
- if (c1 > 0 && c1 < 32 || c2 > 0 && c2 < 32)
- invalid_character (c);
+ if ((c1 > 0 && c1 < 32) || (c2 > 0 && c2 < 32))
+ return -1;
if (c1)
{
*p++ = c1 | 0x80;
}
}
else
- invalid_character (c);
+ return -1;
return (p - str);
}
+
+/* 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
+ length of the multi-byte form. If C is an invalid character code,
+ signal an error.
+
+ Use macro `CHAR_STRING (C, STR)' instead of calling this function
+ directly if C can be an ASCII character. */
+
+int
+char_to_string (c, str)
+ int c;
+ unsigned char *str;
+{
+ int len;
+ len = char_to_string_1 (c, str);
+ if (len == -1)
+ invalid_character (c);
+ return len;
+}
+
+
/* Return the non-ASCII character corresponding to multi-byte form at
STR of length LEN. If ACTUAL_LEN is not NULL, store the byte
length of the multibyte form in *ACTUAL_LEN.
return 0;
}
-/* Return 1 iff character C has valid printable glyph.
+/* Return 1 if character C has valid printable glyph.
Use the macro CHAR_PRINTABLE_P instead. */
int
char_printable_p (c)
int c;
{
- int charset, c1, c2, chars;
+ int charset, c1, c2;
if (ASCII_BYTE_P (c))
return 1;
return 0;
else if (c >= MAX_CHAR)
return 0;
-
+
SPLIT_CHAR (c, charset, c1, c2);
if (! CHARSET_DEFINED_P (charset))
return 0;
SPLIT_CHAR (XFASTINT (ch), alt_charset, alt_c1, alt_c2);
dimension = CHARSET_DIMENSION (alt_charset);
- if (dimension == 1 && alt_c1 > 0 || dimension == 2 && alt_c2 > 0)
+ if ((dimension == 1 && alt_c1 > 0) || (dimension == 2 && alt_c2 > 0))
/* CH is not a generic character, just return it. */
return XFASTINT (ch);
Lisp_Object val;
int charset;
- return ((SYMBOLP (charset_symbol)
- && (val = Fget (charset_symbol, Qcharset), VECTORP (val))
- && (charset = XINT (XVECTOR (val)->contents[CHARSET_ID_IDX]),
- CHARSET_VALID_P (charset)))
- ? charset : -1);
+ /* This originally used a ?: operator, but reportedly the HP-UX
+ compiler version HP92453-01 A.10.32.22 miscompiles that. */
+ if (SYMBOLP (charset_symbol)
+ && VECTORP (val = Fget (charset_symbol, Qcharset))
+ && CHARSET_VALID_P (charset =
+ XINT (XVECTOR (val)->contents[CHARSET_ID_IDX])))
+ return charset;
+ else
+ return -1;
}
/* Return an identification number for a new private charset of
if (dimension == 1)
{
- if (width == 1)
- from = LEADING_CODE_EXT_11, to = LEADING_CODE_EXT_12;
- else
- from = LEADING_CODE_EXT_12, to = LEADING_CODE_EXT_21;
+ from = LEADING_CODE_EXT_11;
+ to = LEADING_CODE_EXT_21;
}
else
{
- if (width == 1)
- from = LEADING_CODE_EXT_21, to = LEADING_CODE_EXT_22;
- else
- from = LEADING_CODE_EXT_22, to = LEADING_CODE_EXT_MAX + 1;
+ from = LEADING_CODE_EXT_21;
+ to = LEADING_CODE_EXT_MAX + 1;
}
for (charset = from; charset < to; charset++)
}
DEFUN ("define-charset", Fdefine_charset, Sdefine_charset, 3, 3, 0,
- "Define CHARSET-ID as the identification number of CHARSET with INFO-VECTOR.\n\
-If CHARSET-ID is nil, it is decided automatically, which means CHARSET is\n\
- treated as a private charset.\n\
-INFO-VECTOR is a vector of the format:\n\
- [DIMENSION CHARS WIDTH DIRECTION ISO-FINAL-CHAR ISO-GRAPHIC-PLANE\n\
- SHORT-NAME LONG-NAME DESCRIPTION]\n\
-The meanings of each elements is as follows:\n\
-DIMENSION (integer) is the number of bytes to represent a character: 1 or 2.\n\
-CHARS (integer) is the number of characters in a dimension: 94 or 96.\n\
-WIDTH (integer) is the number of columns a character in the charset\n\
-occupies on the screen: one of 0, 1, and 2.\n\
-\n\
-DIRECTION (integer) is the rendering direction of characters in the\n\
-charset when rendering. If 0, render from left to right, else\n\
-render from right to left.\n\
-\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\
-LONG-NAME (string) is the long name to refer to the charset.\n\
-\n\
-DESCRIPTION (string) is the description string of the charset.")
- (charset_id, charset_symbol, info_vector)
+ doc: /* Define CHARSET-ID as the identification number of CHARSET with INFO-VECTOR.
+If CHARSET-ID is nil, it is decided automatically, which means CHARSET is
+ treated as a private charset.
+INFO-VECTOR is a vector of the format:
+ [DIMENSION CHARS WIDTH DIRECTION ISO-FINAL-CHAR ISO-GRAPHIC-PLANE
+ SHORT-NAME LONG-NAME DESCRIPTION]
+The meanings of each elements is as follows:
+DIMENSION (integer) is the number of bytes to represent a character: 1 or 2.
+CHARS (integer) is the number of characters in a dimension: 94 or 96.
+WIDTH (integer) is the number of columns a character in the charset
+occupies on the screen: one of 0, 1, and 2.
+
+DIRECTION (integer) is the rendering direction of characters in the
+charset when rendering. If 0, render from left to right, else
+render from right to left.
+
+ISO-FINAL-CHAR (character) is the final character of the
+corresponding ISO 2022 charset.
+It may be -1 if the charset is internal use only.
+
+ISO-GRAPHIC-PLANE (integer) is the graphic plane to be invoked
+while encoding to variants of ISO 2022 coding system, one of the
+following: 0/graphic-plane-left(GL), 1/graphic-plane-right(GR).
+It may be -1 if the charset is internal use only.
+
+SHORT-NAME (string) is the short name to refer to the charset.
+
+LONG-NAME (string) is the long name to refer to the charset.
+
+DESCRIPTION (string) is the description string of the charset. */)
+ (charset_id, charset_symbol, info_vector)
Lisp_Object charset_id, charset_symbol, info_vector;
{
Lisp_Object *vec;
if (!NILP (charset_id))
- CHECK_NUMBER (charset_id, 0);
- CHECK_SYMBOL (charset_symbol, 1);
- CHECK_VECTOR (info_vector, 2);
+ CHECK_NUMBER (charset_id);
+ CHECK_SYMBOL (charset_symbol);
+ CHECK_VECTOR (info_vector);
if (! NILP (charset_id))
{
|| !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]) == -1 || XINT (vec[4]) >= '0' && XINT (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]))
error ("Invalid info-vector argument for defining charset %s",
- XSYMBOL (charset_symbol)->name->data);
+ SDATA (SYMBOL_NAME (charset_symbol)));
if (NILP (charset_id))
{
charset_id = get_new_private_charset_id (XINT (vec[0]), XINT (vec[2]));
if (XINT (charset_id) == 0)
error ("There's no room for a new private charset %s",
- XSYMBOL (charset_symbol)->name->data);
+ SDATA (SYMBOL_NAME (charset_symbol)));
}
update_charset_table (charset_id, vec[0], vec[1], vec[2], vec[3],
Fput (charset_symbol, Qcharset, CHARSET_TABLE_ENTRY (XINT (charset_id)));
CHARSET_SYMBOL (XINT (charset_id)) = charset_symbol;
Vcharset_list = Fcons (charset_symbol, Vcharset_list);
+ Fupdate_coding_systems_internal ();
return Qnil;
}
DEFUN ("generic-character-list", Fgeneric_character_list,
Sgeneric_character_list, 0, 0, 0,
- "Return a list of all possible generic characters.\n\
-It includes a generic character for a charset not yet defined.")
- ()
+ doc: /* Return a list of all possible generic characters.
+It includes a generic character for a charset not yet defined. */)
+ ()
{
return Vgeneric_character_list;
}
DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char,
Sget_unused_iso_final_char, 2, 2, 0,
- "Return an unsed ISO's final char for a charset of DIMENISION and CHARS.\n\
-DIMENSION is the number of bytes to represent a character: 1 or 2.\n\
-CHARS is the number of characters in a dimension: 94 or 96.\n\
-\n\
-This final char is for private use, thus the range is `0' (48) .. `?' (63).\n\
-If there's no unused final char for the specified kind of charset,\n\
-return nil.")
- (dimension, chars)
+ doc: /* Return an unused ISO's final char for a charset of DIMENSION and CHARS.
+DIMENSION is the number of bytes to represent a character: 1 or 2.
+CHARS is the number of characters in a dimension: 94 or 96.
+
+This final char is for private use, thus the range is `0' (48) .. `?' (63).
+If there's no unused final char for the specified kind of charset,
+return nil. */)
+ (dimension, chars)
Lisp_Object dimension, chars;
{
int final_char;
- CHECK_NUMBER (dimension, 0);
- CHECK_NUMBER (chars, 1);
+ CHECK_NUMBER (dimension);
+ CHECK_NUMBER (chars);
if (XINT (dimension) != 1 && XINT (dimension) != 2)
error ("Invalid charset dimension %d, it should be 1 or 2",
XINT (dimension));
DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset,
4, 4, 0,
- "Declare a charset of DIMENSION, CHARS, FINAL-CHAR is the same as CHARSET.\n\
-CHARSET should be defined by `defined-charset' in advance.")
- (dimension, chars, final_char, charset_symbol)
- Lisp_Object dimension, chars, final_char, charset_symbol;
+ doc: /* Declare an equivalent charset for ISO-2022 decoding.
+
+On decoding by an ISO-2022 base coding system, when a charset
+specified by DIMENSION, CHARS, and FINAL-CHAR is designated, behave as
+if CHARSET is designated instead. */)
+ (dimension, chars, final_char, charset)
+ Lisp_Object dimension, chars, final_char, charset;
{
- int charset;
+ int charset_id;
- CHECK_NUMBER (dimension, 0);
- CHECK_NUMBER (chars, 1);
- CHECK_NUMBER (final_char, 2);
- CHECK_SYMBOL (charset_symbol, 3);
+ CHECK_NUMBER (dimension);
+ CHECK_NUMBER (chars);
+ CHECK_NUMBER (final_char);
+ CHECK_SYMBOL (charset);
if (XINT (dimension) != 1 && XINT (dimension) != 2)
error ("Invalid DIMENSION %d, it should be 1 or 2", XINT (dimension));
error ("Invalid CHARS %d, it should be 94 or 96", XINT (chars));
if (XINT (final_char) < '0' || XFASTINT (final_char) > '~')
error ("Invalid FINAL-CHAR %c, it should be `0'..`~'", XINT (chars));
- if ((charset = get_charset_id (charset_symbol)) < 0)
- error ("Invalid charset %s", XSYMBOL (charset_symbol)->name->data);
+ if ((charset_id = get_charset_id (charset)) < 0)
+ error ("Invalid charset %s", SDATA (SYMBOL_NAME (charset)));
- ISO_CHARSET_TABLE (dimension, chars, final_char) = charset;
+ ISO_CHARSET_TABLE (dimension, chars, final_char) = charset_id;
return Qnil;
}
int
find_charset_in_text (ptr, nchars, nbytes, charsets, table)
- unsigned char *ptr;
+ const unsigned char *ptr;
int nchars, nbytes, *charsets;
Lisp_Object table;
{
{
if (charsets && nbytes > 0)
{
- unsigned char *endp = ptr + nbytes;
+ const 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;
DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region,
2, 3, 0,
- "Return a list of charsets in the region between BEG and END.\n\
-BEG and END are buffer positions.\n\
-Optional arg TABLE if non-nil is a translation table to look up.\n\
-\n\
-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 may contain\n\
-only `ascii', `eight-bit-control', and `eight-bit-graphic'.")
- (beg, end, table)
+ doc: /* Return a list of charsets in the region between BEG and END.
+BEG and END are buffer positions.
+Optional arg TABLE if non-nil is a translation table to look up.
+
+If the region contains invalid multibyte characters,
+`unknown' is included in the returned list.
+
+If the current buffer is unibyte, the returned list may contain
+only `ascii', `eight-bit-control', and `eight-bit-graphic'. */)
+ (beg, end, table)
Lisp_Object beg, end, table;
{
int charsets[MAX_CHARSET + 1];
DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string,
1, 2, 0,
- "Return a list of charsets in STR.\n\
-Optional arg TABLE if non-nil is a translation table to look up.\n\
-\n\
-If the region contains invalid multiybte characters,\n\
-`unknown' is included in the returned list.\n\
-\n\
-If STR is unibyte, the returned list may contain\n\
-only `ascii', `eight-bit-control', and `eight-bit-graphic'.")
- (str, table)
+ doc: /* Return a list of charsets in STR.
+Optional arg TABLE if non-nil is a translation table to look up.
+
+If the string contains invalid multibyte characters,
+`unknown' is included in the returned list.
+
+If STR is unibyte, the returned list may contain
+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;
- CHECK_STRING (str, 0);
+ CHECK_STRING (str);
bzero (charsets, (MAX_CHARSET + 1) * sizeof (int));
- find_charset_in_text (XSTRING (str)->data, XSTRING (str)->size,
- STRING_BYTES (XSTRING (str)), charsets, table);
+ find_charset_in_text (SDATA (str), SCHARS (str),
+ SBYTES (str), charsets, table);
val = Qnil;
if (charsets[1])
\f
DEFUN ("make-char-internal", Fmake_char_internal, Smake_char_internal, 1, 3, 0,
- "")
- (charset, code1, code2)
+ doc: /* Return a character made from arguments.
+Internal use only. */)
+ (charset, code1, code2)
Lisp_Object charset, code1, code2;
{
int charset_id, c1, c2;
- CHECK_NUMBER (charset, 0);
+ CHECK_NUMBER (charset);
charset_id = XINT (charset);
if (!CHARSET_DEFINED_P (charset_id))
error ("Invalid charset ID: %d", XINT (charset));
c1 = 0;
else
{
- CHECK_NUMBER (code1, 1);
+ CHECK_NUMBER (code1);
c1 = XINT (code1);
}
if (NILP (code2))
c2 = 0;
else
{
- CHECK_NUMBER (code2, 2);
+ CHECK_NUMBER (code2);
c2 = XINT (code2);
}
}
else if (charset_id == CHARSET_8_BIT_CONTROL)
{
- if (c1 < 0x80 || c1 > 0x9F)
+ if (NILP (code1))
+ c1 = 0x80;
+ else 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)
+ if (NILP (code1))
+ c1 = 0xA0;
+ else if (c1 < 0xA0 || c1 > 0xFF)
goto invalid_code_posints;
return make_number (c1);
}
}
DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0,
- "Return list of charset and one or two position-codes of CHAR.\n\
-If CHAR is invalid as a character code,\n\
-return a list of symbol `unknown' and CHAR.")
- (ch)
+ doc: /* Return list of charset and one or two position-codes of CH.
+If CH is invalid as a character code,
+return a list of symbol `unknown' and CH. */)
+ (ch)
Lisp_Object ch;
{
- Lisp_Object val;
int c, charset, c1, c2;
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
c = XFASTINT (ch);
if (!CHAR_VALID_P (c, 1))
return Fcons (Qunknown, Fcons (ch, Qnil));
}
DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 1, 0,
- "Return charset of CHAR.")
- (ch)
+ doc: /* Return charset of CH. */)
+ (ch)
Lisp_Object ch;
{
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
return CHARSET_SYMBOL (CHAR_CHARSET (XINT (ch)));
}
DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0,
- "Return charset of a character in the current buffer at position POS.\n\
-If POS is nil, it defauls to the current point.\n\
-If POS is out of range, the value is nil.")
- (pos)
+ doc: /* Return charset of a character in the current buffer at position POS.
+If POS is nil, it defauls to the current point.
+If POS is out of range, the value is nil. */)
+ (pos)
Lisp_Object pos;
{
Lisp_Object ch;
}
DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0,
- "Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR.\n\
-\n\
-ISO 2022's designation sequence (escape sequence) distinguishes charsets\n\
-by their DIMENSION, CHARS, and FINAL-CHAR,\n\
-where as Emacs distinguishes them by charset symbol.\n\
-See the documentation of the function `charset-info' for the meanings of\n\
-DIMENSION, CHARS, and FINAL-CHAR.")
- (dimension, chars, final_char)
+ doc: /* Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR.
+
+ISO 2022's designation sequence (escape sequence) distinguishes charsets
+by their DIMENSION, CHARS, and FINAL-CHAR,
+where as Emacs distinguishes them by charset symbol.
+See the documentation of the function `charset-info' for the meanings of
+DIMENSION, CHARS, and FINAL-CHAR. */)
+ (dimension, chars, final_char)
Lisp_Object dimension, chars, final_char;
{
int charset;
- CHECK_NUMBER (dimension, 0);
- CHECK_NUMBER (chars, 1);
- CHECK_NUMBER (final_char, 2);
+ CHECK_NUMBER (dimension);
+ CHECK_NUMBER (chars);
+ CHECK_NUMBER (final_char);
if ((charset = ISO_CHARSET_TABLE (dimension, chars, final_char)) < 0)
return Qnil;
return CHARSET_SYMBOL (charset);
}
-/* If GENERICP is nonzero, return nonzero iff C is a valid normal or
- generic character. If GENERICP is zero, return nonzero iff C is a
+/* If GENERICP is nonzero, return nonzero if C is a valid normal or
+ generic character. If GENERICP is zero, return nonzero if C is a
valid normal character. Do not call this function directly,
instead use macro CHAR_VALID_P. */
int
}
DEFUN ("char-valid-p", Fchar_valid_p, Schar_valid_p, 1, 2, 0,
- "Return t if OBJECT is a valid normal character.\n\
-If optional arg GENERICP is non-nil, also return t if OBJECT is\n\
-a valid generic character.")
- (object, genericp)
+ doc: /* Return t if OBJECT is a valid normal character.
+If optional arg GENERICP is non-nil, also return t if OBJECT is
+a valid generic character. */)
+ (object, genericp)
Lisp_Object object, genericp;
{
if (! NATNUMP (object))
DEFUN ("unibyte-char-to-multibyte", Funibyte_char_to_multibyte,
Sunibyte_char_to_multibyte, 1, 1, 0,
- "Convert the unibyte character CH to multibyte character.\n\
-The conversion is done based on `nonascii-translation-table' (which see)\n\
- or `nonascii-insert-offset' (which see).")
- (ch)
+ doc: /* Convert the unibyte character CH to multibyte character.
+The conversion is done based on `nonascii-translation-table' (which see)
+ or `nonascii-insert-offset' (which see). */)
+ (ch)
Lisp_Object ch;
{
int c;
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
c = XINT (ch);
if (c < 0 || c >= 0400)
error ("Invalid unibyte character: %d", c);
DEFUN ("multibyte-char-to-unibyte", Fmultibyte_char_to_unibyte,
Smultibyte_char_to_unibyte, 1, 1, 0,
- "Convert the multibyte character CH to unibyte character.\n\
-The conversion is done based on `nonascii-translation-table' (which see)\n\
- or `nonascii-insert-offset' (which see).")
- (ch)
+ doc: /* Convert the multibyte character CH to unibyte character.
+The conversion is done based on `nonascii-translation-table' (which see)
+ or `nonascii-insert-offset' (which see). */)
+ (ch)
Lisp_Object ch;
{
int c;
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
c = XINT (ch);
if (! CHAR_VALID_P (c, 0))
error ("Invalid multibyte character: %d", c);
}
DEFUN ("char-bytes", Fchar_bytes, Schar_bytes, 1, 1, 0,
- "Return 1 regardless of the argument CHAR.\n\
-This is now an obsolete function. We keep it just for backward compatibility.")
- (ch)
+ doc: /* Return 1 regardless of the argument CH. */)
+ (ch)
Lisp_Object ch;
{
- Lisp_Object val;
-
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
return make_number (1);
}
: 4))))
DEFUN ("char-width", Fchar_width, Schar_width, 1, 1, 0,
- "Return width of CHAR when displayed in the current buffer.\n\
-The width is measured by how many columns it occupies on the screen.\n\
-Tab is taken to occupy `tab-width' columns.")
- (ch)
- Lisp_Object ch;
+ doc: /* Return width of CH when displayed in the current buffer.
+The width is measured by how many columns it occupies on the screen.
+Tab is taken to occupy `tab-width' columns. */)
+ (ch)
+ Lisp_Object ch;
{
Lisp_Object val, disp;
int c;
struct Lisp_Char_Table *dp = buffer_display_table ();
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
c = XINT (ch);
unsigned char *str;
int len;
{
- unsigned char *endp = str + len;
+ return c_string_width (str, len, -1, NULL, NULL);
+}
+
+/* Return width of string STR of length LEN when displayed in the
+ current buffer. The width is measured by how many columns it
+ occupies on the screen. If PRECISION > 0, return the width of
+ longest substring that doesn't exceed PRECISION, and set number of
+ characters and bytes of the substring in *NCHARS and *NBYTES
+ respectively. */
+
+int
+c_string_width (str, len, precision, nchars, nbytes)
+ const unsigned char *str;
+ int len, precision, *nchars, *nbytes;
+{
+ int i = 0, i_byte = 0;
int width = 0;
+ int chars;
struct Lisp_Char_Table *dp = buffer_display_table ();
- while (str < endp)
+ while (i_byte < len)
{
- Lisp_Object disp;
- int thislen;
- int c = STRING_CHAR_AND_LENGTH (str, endp - str, thislen);
+ int bytes, thiswidth;
+ Lisp_Object val;
- /* Get the way the display table would display it. */
if (dp)
- disp = DISP_CHAR_VECTOR (dp, c);
+ {
+ int c = STRING_CHAR_AND_LENGTH (str + i_byte, len - i_byte, bytes);
+
+ chars = 1;
+ val = DISP_CHAR_VECTOR (dp, c);
+ if (VECTORP (val))
+ thiswidth = XVECTOR (val)->size;
+ else
+ thiswidth = ONE_BYTE_CHAR_WIDTH (str[i_byte]);
+ }
else
- disp = Qnil;
+ {
+ chars = 1;
+ PARSE_MULTIBYTE_SEQ (str + i_byte, len - i_byte, bytes);
+ thiswidth = ONE_BYTE_CHAR_WIDTH (str[i_byte]);
+ }
+
+ if (precision > 0
+ && (width + thiswidth > precision))
+ {
+ *nchars = i;
+ *nbytes = i_byte;
+ return width;
+ }
+ i++;
+ i_byte += bytes;
+ width += thiswidth;
+ }
- if (VECTORP (disp))
- width += XVECTOR (disp)->size;
+ if (precision > 0)
+ {
+ *nchars = i;
+ *nbytes = i_byte;
+ }
+
+ return width;
+}
+
+/* Return width of Lisp string STRING when displayed in the current
+ buffer. The width is measured by how many columns it occupies on
+ the screen while paying attention to compositions. If PRECISION >
+ 0, return the width of longest substring that doesn't exceed
+ PRECISION, and set number of characters and bytes of the substring
+ in *NCHARS and *NBYTES respectively. */
+
+int
+lisp_string_width (string, precision, nchars, nbytes)
+ Lisp_Object string;
+ int precision, *nchars, *nbytes;
+{
+ int len = SCHARS (string);
+ int len_byte = SBYTES (string);
+ /* This set multibyte to 0 even if STRING is multibyte when it
+ contains only ascii and eight-bit-graphic, but that's
+ intentional. */
+ int multibyte = len < len_byte;
+ const unsigned char *str = SDATA (string);
+ int i = 0, i_byte = 0;
+ int width = 0;
+ struct Lisp_Char_Table *dp = buffer_display_table ();
+
+ while (i < len)
+ {
+ int chars, bytes, thiswidth;
+ Lisp_Object val;
+ int cmp_id;
+ int ignore, end;
+
+ if (find_composition (i, -1, &ignore, &end, &val, string)
+ && ((cmp_id = get_composition_id (i, i_byte, end - i, val, string))
+ >= 0))
+ {
+ thiswidth = composition_table[cmp_id]->width;
+ chars = end - i;
+ bytes = string_char_to_byte (string, end) - i_byte;
+ }
+ else if (dp)
+ {
+ int c;
+
+ if (multibyte)
+ c = STRING_CHAR_AND_LENGTH (str + i_byte, len - i_byte, bytes);
+ else
+ c = str[i_byte], bytes = 1;
+ chars = 1;
+ val = DISP_CHAR_VECTOR (dp, c);
+ if (VECTORP (val))
+ thiswidth = XVECTOR (val)->size;
+ else
+ thiswidth = ONE_BYTE_CHAR_WIDTH (str[i_byte]);
+ }
else
- width += ONE_BYTE_CHAR_WIDTH (*str);
+ {
+ chars = 1;
+ if (multibyte)
+ PARSE_MULTIBYTE_SEQ (str + i_byte, len_byte - i_byte, bytes);
+ else
+ bytes = 1;
+ thiswidth = ONE_BYTE_CHAR_WIDTH (str[i_byte]);
+ }
+
+ if (precision > 0
+ && (width + thiswidth > precision))
+ {
+ *nchars = i;
+ *nbytes = i_byte;
+ return width;
+ }
+ i += chars;
+ i_byte += bytes;
+ width += thiswidth;
+ }
- str += thislen;
+ if (precision > 0)
+ {
+ *nchars = i;
+ *nbytes = i_byte;
}
+
return width;
}
DEFUN ("string-width", Fstring_width, Sstring_width, 1, 1, 0,
- "Return width of STRING when displayed in the current buffer.\n\
-Width is measured by how many columns it occupies on the screen.\n\
-When calculating width of a multibyte character in STRING,\n\
-only the base leading-code is considered; the validity of\n\
-the following bytes is not checked. Tabs in STRING are always\n\
-taken to occupy `tab-width' columns.")
- (str)
- Lisp_Object str;
+ doc: /* Return width of STRING when displayed in the current buffer.
+Width is measured by how many columns it occupies on the screen.
+When calculating width of a multibyte character in STRING,
+only the base leading-code is considered; the validity of
+the following bytes is not checked. Tabs in STRING are always
+taken to occupy `tab-width' columns. */)
+ (string)
+ Lisp_Object string;
{
Lisp_Object val;
- CHECK_STRING (str, 0);
- XSETFASTINT (val, strwidth (XSTRING (str)->data,
- STRING_BYTES (XSTRING (str))));
+ CHECK_STRING (string);
+ XSETFASTINT (val, lisp_string_width (string, -1, NULL, NULL));
return val;
}
DEFUN ("char-direction", Fchar_direction, Schar_direction, 1, 1, 0,
- "Return the direction of CHAR.\n\
-The returned value is 0 for left-to-right and 1 for right-to-left.")
- (ch)
+ doc: /* Return the direction of CH.
+The returned value is 0 for left-to-right and 1 for right-to-left. */)
+ (ch)
Lisp_Object ch;
{
int charset;
- CHECK_NUMBER (ch, 0);
+ CHECK_NUMBER (ch);
charset = CHAR_CHARSET (XFASTINT (ch));
if (!CHARSET_DEFINED_P (charset))
invalid_character (XINT (ch));
return CHARSET_TABLE_INFO (charset, CHARSET_DIRECTION_IDX);
}
-DEFUN ("chars-in-region", Fchars_in_region, Schars_in_region, 2, 2, 0,
- "Return number of characters between BEG and END.")
- (beg, end)
- Lisp_Object beg, end;
-{
- int from, to;
-
- CHECK_NUMBER_COERCE_MARKER (beg, 0);
- CHECK_NUMBER_COERCE_MARKER (end, 1);
-
- from = min (XFASTINT (beg), XFASTINT (end));
- to = max (XFASTINT (beg), XFASTINT (end));
-
- return make_number (to - from);
-}
-
/* Return the number of characters in the NBYTES bytes at PTR.
This works by looking at the contents and checking for multibyte sequences.
However, if the current buffer has enable-multibyte-characters = nil,
int
chars_in_text (ptr, nbytes)
- unsigned char *ptr;
+ const unsigned char *ptr;
int nbytes;
{
/* current_buffer is null at early stages of Emacs initialization. */
int
multibyte_chars_in_text (ptr, nbytes)
- unsigned char *ptr;
+ const unsigned char *ptr;
int nbytes;
{
- unsigned char *endp;
+ const unsigned char *endp;
int chars, bytes;
endp = ptr + nbytes;
return chars;
}
-/* Parse unibyte text at STR of LEN bytes as a multibyte text, and
+/* Parse unibyte text at STR of LEN bytes as 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. */
+ bytes, pay attention to the fact that 8-bit characters in the range
+ 0x80..0x9F are represented by 2 bytes in multibyte text. */
void
parse_str_as_multibyte (str, len, nchars, nbytes)
- unsigned char *str;
+ const unsigned char *str;
int len, *nchars, *nbytes;
{
- unsigned char *endp = str + len;
+ const unsigned char *endp = str + len;
int n, chars = 0, bytes = 0;
while (str < endp)
return;
}
-/* Arrange unibyte text at STR of NBYTES bytes as a multibyte text.
+/* Arrange unibyte text at STR of NBYTES bytes as 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
{
while (n--)
*to++ = *p++;
- }
+ }
else
{
*to++ = LEADING_CODE_8_BIT_CONTROL;
return (to - str);
}
-/* Convert unibyte text at STR of NBYTES bytes to a multibyte text
+/* Parse unibyte string at STR of LEN bytes, and return the number of
+ bytes it may ocupy when converted to multibyte string by
+ `str_to_multibyte'. */
+
+int
+parse_str_to_multibyte (str, len)
+ unsigned char *str;
+ int len;
+{
+ unsigned char *endp = str + len;
+ int bytes;
+
+ for (bytes = 0; str < endp; str++)
+ bytes += (*str < 0x80 || *str >= 0xA0) ? 1 : 2;
+ return bytes;
+}
+
+/* Convert unibyte text at STR of NBYTES bytes to 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
{
unsigned char *p = str, *endp = str + bytes;
unsigned char *to;
- int c;
while (p < endp && (*p < 0x80 || *p >= 0xA0)) p++;
if (p == endp)
endp = str + len;
safe_bcopy (p, endp - bytes, bytes);
p = endp - bytes;
- while (p < endp)
+ while (p < endp)
{
if (*p < 0x80 || *p >= 0xA0)
*to++ = *p++;
while (p < endp && *p != LEADING_CODE_8_BIT_CONTROL) p++;
to = p;
- while (p < endp)
+ while (p < endp)
{
if (*p == LEADING_CODE_8_BIT_CONTROL)
*to++ = *(p + 1) - 0x20, p += 2;
}
\f
-DEFUN ("string", Fstring, Sstring, 1, MANY, 0,
- "Concatenate all the argument characters and make the result a string.")
- (n, args)
+DEFUN ("string", Fstring, Sstring, 0, MANY, 0,
+ doc: /* Concatenate all the argument characters and make the result a string.
+usage: (string &rest CHARACTERS) */)
+ (n, args)
int n;
Lisp_Object *args;
{
- int i;
- unsigned char *buf = (unsigned char *) alloca (MAX_MULTIBYTE_LENGTH * n);
- unsigned char *p = buf;
+ int i, bufsize;
+ unsigned char *buf, *p;
int c;
+ int multibyte = 0;
+ Lisp_Object ret;
+ USE_SAFE_ALLOCA;
+
+ bufsize = MAX_MULTIBYTE_LENGTH * n;
+ SAFE_ALLOCA (buf, unsigned char *, bufsize);
+ p = buf;
+
+ for (i = 0; i < n; i++)
+ {
+ CHECK_NUMBER (args[i]);
+ if (!multibyte && !SINGLE_BYTE_CHAR_P (XFASTINT (args[i])))
+ multibyte = 1;
+ }
for (i = 0; i < n; i++)
{
- CHECK_NUMBER (args[i], 0);
c = XINT (args[i]);
- p += CHAR_STRING (c, p);
+ if (multibyte)
+ p += CHAR_STRING (c, p);
+ else
+ *p++ = c;
}
- return make_string_from_bytes (buf, n, p - buf);
+ ret = make_string_from_bytes (buf, n, p - buf);
+ SAFE_FREE ();
+
+ return ret;
}
#endif /* emacs */
}
DEFUN ("setup-special-charsets", Fsetup_special_charsets,
- Ssetup_special_charsets, 0, 0, 0, "Internal use only.")
- ()
+ Ssetup_special_charsets, 0, 0, 0, doc: /* Internal use only. */)
+ ()
{
charset_latin_iso8859_1 = charset_id_internal ("latin-iso8859-1");
charset_jisx0208_1978 = charset_id_internal ("japanese-jisx0208-1978");
charset_latin_jisx0201 = charset_id_internal ("latin-jisx0201");
charset_big5_1 = charset_id_internal ("chinese-big5-1");
charset_big5_2 = charset_id_internal ("chinese-big5-2");
+ charset_mule_unicode_0100_24ff
+ = charset_id_internal ("mule-unicode-0100-24ff");
+ charset_mule_unicode_2500_33ff
+ = charset_id_internal ("mule-unicode-2500-33ff");
+ charset_mule_unicode_e000_ffff
+ = charset_id_internal ("mule-unicode-e000-ffff");
return Qnil;
}
defsubr (&Schar_width);
defsubr (&Sstring_width);
defsubr (&Schar_direction);
- defsubr (&Schars_in_region);
defsubr (&Sstring);
defsubr (&Ssetup_special_charsets);
DEFVAR_LISP ("charset-list", &Vcharset_list,
- "List of charsets ever defined.");
+ doc: /* List of charsets ever defined. */);
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\
-An ID of a translation table is an index of this vector.");
+ doc: /* Vector of cons cell of a symbol and translation table ever defined.
+An ID of a translation table is an index of this vector. */);
Vtranslation_table_vector = Fmake_vector (make_number (16), Qnil);
DEFVAR_INT ("leading-code-private-11", &leading_code_private_11,
- "Leading-code of private TYPE9N charset of column-width 1.");
+ doc: /* Leading-code of private TYPE9N charset of column-width 1. */);
leading_code_private_11 = LEADING_CODE_PRIVATE_11;
DEFVAR_INT ("leading-code-private-12", &leading_code_private_12,
- "Leading-code of private TYPE9N charset of column-width 2.");
+ doc: /* Leading-code of private TYPE9N charset of column-width 2. */);
leading_code_private_12 = LEADING_CODE_PRIVATE_12;
DEFVAR_INT ("leading-code-private-21", &leading_code_private_21,
- "Leading-code of private TYPE9Nx9N charset of column-width 1.");
+ doc: /* Leading-code of private TYPE9Nx9N charset of column-width 1. */);
leading_code_private_21 = LEADING_CODE_PRIVATE_21;
DEFVAR_INT ("leading-code-private-22", &leading_code_private_22,
- "Leading-code of private TYPE9Nx9N charset of column-width 2.");
+ doc: /* Leading-code of private TYPE9Nx9N charset of column-width 2. */);
leading_code_private_22 = LEADING_CODE_PRIVATE_22;
DEFVAR_INT ("nonascii-insert-offset", &nonascii_insert_offset,
- "Offset for converting non-ASCII unibyte codes 0240...0377 to multibyte.\n\
-This is used for converting unibyte text to multibyte,\n\
-and for inserting character codes specified by number.\n\n\
-This serves to convert a Latin-1 or similar 8-bit character code\n\
-to the corresponding Emacs multibyte character code.\n\
-Typically the value should be (- (make-char CHARSET 0) 128),\n\
-for your choice of character set.\n\
-If `nonascii-translation-table' is non-nil, it overrides this variable.");
+ doc: /* Offset for converting non-ASCII unibyte codes 0240...0377 to multibyte.
+This is used for converting unibyte text to multibyte,
+and for inserting character codes specified by number.
+
+This serves to convert a Latin-1 or similar 8-bit character code
+to the corresponding Emacs multibyte character code.
+Typically the value should be (- (make-char CHARSET 0) 128),
+for your choice of character set.
+If `nonascii-translation-table' is non-nil, it overrides this variable. */);
nonascii_insert_offset = 0;
DEFVAR_LISP ("nonascii-translation-table", &Vnonascii_translation_table,
- "Translation table to convert non-ASCII unibyte codes to multibyte.\n\
-This is used for converting unibyte text to multibyte,\n\
-and for inserting character codes specified by number.\n\n\
-Conversion is performed only when multibyte characters are enabled,\n\
-and it serves to convert a Latin-1 or similar 8-bit character code\n\
-to the corresponding Emacs character code.\n\n\
-If this is nil, `nonascii-insert-offset' is used instead.\n\
-See also the docstring of `make-translation-table'.");
+ doc: /* Translation table to convert non-ASCII unibyte codes to multibyte.
+This is used for converting unibyte text to multibyte,
+and for inserting character codes specified by number.
+
+Conversion is performed only when multibyte characters are enabled,
+and it serves to convert a Latin-1 or similar 8-bit character code
+to the corresponding Emacs character code.
+
+If this is nil, `nonascii-insert-offset' is used instead.
+See also the docstring of `make-translation-table'. */);
Vnonascii_translation_table = Qnil;
DEFVAR_LISP ("auto-fill-chars", &Vauto_fill_chars,
- "A char-table for characters which invoke auto-filling.\n\
-Such characters have value t in this table.");
+ doc: /* A char-table for characters which invoke auto-filling.
+Such characters have value t in this table. */);
Vauto_fill_chars = Fmake_char_table (Qauto_fill_chars, Qnil);
CHAR_TABLE_SET (Vauto_fill_chars, make_number (' '), Qt);
CHAR_TABLE_SET (Vauto_fill_chars, make_number ('\n'), Qt);
}
#endif /* emacs */
+
+/* arch-tag: 66a89b8d-4c28-47d3-9ca1-56f78440d69f
+ (do not change this comment) */
HCoop / bpt / emacs.git / blobdiff