- doc: /* Return the parent char-table of CHAR-TABLE.
-The value is either nil or another char-table.
-If CHAR-TABLE holds nil for a given character,
-then the actual applicable value is inherited from the parent char-table
-\(or from its parents, if necessary). */)
- (char_table)
- Lisp_Object char_table;
-{
- CHECK_CHAR_TABLE (char_table);
-
- return XCHAR_TABLE (char_table)->parent;
-}
-
-DEFUN ("set-char-table-parent", Fset_char_table_parent, Sset_char_table_parent,
- 2, 2, 0,
- doc: /* Set the parent char-table of CHAR-TABLE to PARENT.
-PARENT must be either nil or another char-table. */)
- (char_table, parent)
- Lisp_Object char_table, parent;
-{
- Lisp_Object temp;
-
- CHECK_CHAR_TABLE (char_table);
-
- if (!NILP (parent))
- {
- CHECK_CHAR_TABLE (parent);
-
- for (temp = parent; !NILP (temp); temp = XCHAR_TABLE (temp)->parent)
- if (EQ (temp, char_table))
- error ("Attempt to make a chartable be its own parent");
- }
-
- XCHAR_TABLE (char_table)->parent = parent;
-
- return parent;
-}
-
-DEFUN ("char-table-extra-slot", Fchar_table_extra_slot, Schar_table_extra_slot,
- 2, 2, 0,
- doc: /* Return the value of CHAR-TABLE's extra-slot number N. */)
- (char_table, n)
- Lisp_Object char_table, n;
-{
- CHECK_CHAR_TABLE (char_table);
- CHECK_NUMBER (n);
- if (XINT (n) < 0
- || XINT (n) >= CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (char_table)))
- args_out_of_range (char_table, n);
-
- return XCHAR_TABLE (char_table)->extras[XINT (n)];
-}
-
-DEFUN ("set-char-table-extra-slot", Fset_char_table_extra_slot,
- Sset_char_table_extra_slot,
- 3, 3, 0,
- doc: /* Set CHAR-TABLE's extra-slot number N to VALUE. */)
- (char_table, n, value)
- Lisp_Object char_table, n, value;
-{
- CHECK_CHAR_TABLE (char_table);
- CHECK_NUMBER (n);
- if (XINT (n) < 0
- || XINT (n) >= CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (char_table)))
- args_out_of_range (char_table, n);
-
- return XCHAR_TABLE (char_table)->extras[XINT (n)] = value;
-}
-\f
-DEFUN ("char-table-range", Fchar_table_range, Schar_table_range,
- 2, 2, 0,
- doc: /* Return the value in CHAR-TABLE for a range of characters RANGE.
-RANGE should be nil (for the default value)
-a vector which identifies a character set or a row of a character set,
-a character set name, or a character code. */)
- (char_table, range)
- Lisp_Object char_table, range;
-{
- CHECK_CHAR_TABLE (char_table);
-
- if (EQ (range, Qnil))
- return XCHAR_TABLE (char_table)->defalt;
- else if (INTEGERP (range))
- return Faref (char_table, range);
- else if (SYMBOLP (range))
- {
- Lisp_Object charset_info;
-
- charset_info = Fget (range, Qcharset);
- CHECK_VECTOR (charset_info);
-
- return Faref (char_table,
- make_number (XINT (XVECTOR (charset_info)->contents[0])
- + 128));
- }
- else if (VECTORP (range))
- {
- if (XVECTOR (range)->size == 1)
- return Faref (char_table,
- make_number (XINT (XVECTOR (range)->contents[0]) + 128));
- else
- {
- int size = XVECTOR (range)->size;
- Lisp_Object *val = XVECTOR (range)->contents;
- Lisp_Object ch = Fmake_char_internal (size <= 0 ? Qnil : val[0],
- size <= 1 ? Qnil : val[1],
- size <= 2 ? Qnil : val[2]);
- return Faref (char_table, ch);
- }
- }
- else
- error ("Invalid RANGE argument to `char-table-range'");
- return Qt;
-}
-
-DEFUN ("set-char-table-range", Fset_char_table_range, Sset_char_table_range,
- 3, 3, 0,
- doc: /* Set the value in CHAR-TABLE for a range of characters RANGE to VALUE.
-RANGE should be t (for all characters), nil (for the default value)
-a vector which identifies a character set or a row of a character set,
-a coding system, or a character code. */)
- (char_table, range, value)
- Lisp_Object char_table, range, value;
-{
- int i;
-
- CHECK_CHAR_TABLE (char_table);
-
- if (EQ (range, Qt))
- for (i = 0; i < CHAR_TABLE_ORDINARY_SLOTS; i++)
- XCHAR_TABLE (char_table)->contents[i] = value;
- else if (EQ (range, Qnil))
- XCHAR_TABLE (char_table)->defalt = value;
- else if (SYMBOLP (range))
- {
- Lisp_Object charset_info;
-
- charset_info = Fget (range, Qcharset);
- CHECK_VECTOR (charset_info);
-
- return Faset (char_table,
- make_number (XINT (XVECTOR (charset_info)->contents[0])
- + 128),
- value);
- }
- else if (INTEGERP (range))
- Faset (char_table, range, value);
- else if (VECTORP (range))
- {
- if (XVECTOR (range)->size == 1)
- return Faset (char_table,
- make_number (XINT (XVECTOR (range)->contents[0]) + 128),
- value);
- else
- {
- int size = XVECTOR (range)->size;
- Lisp_Object *val = XVECTOR (range)->contents;
- Lisp_Object ch = Fmake_char_internal (size <= 0 ? Qnil : val[0],
- size <= 1 ? Qnil : val[1],
- size <= 2 ? Qnil : val[2]);
- return Faset (char_table, ch, value);
- }
- }
- else
- error ("Invalid RANGE argument to `set-char-table-range'");
-
- return value;
-}
-
-DEFUN ("set-char-table-default", Fset_char_table_default,
- Sset_char_table_default, 3, 3, 0,
- doc: /* Set the default value in CHAR-TABLE for a generic character CHAR to VALUE.
-The generic character specifies the group of characters.
-See also the documentation of make-char. */)
- (char_table, ch, value)
- Lisp_Object char_table, ch, value;
-{
- int c, charset, code1, code2;
- Lisp_Object temp;
-
- CHECK_CHAR_TABLE (char_table);
- CHECK_NUMBER (ch);
-
- c = XINT (ch);
- SPLIT_CHAR (c, charset, code1, code2);
-
- /* Since we may want to set the default value for a character set
- not yet defined, we check only if the character set is in the
- valid range or not, instead of it is already defined or not. */
- if (! CHARSET_VALID_P (charset))
- invalid_character (c);
-
- if (charset == CHARSET_ASCII)
- return (XCHAR_TABLE (char_table)->defalt = value);
-
- /* Even if C is not a generic char, we had better behave as if a
- generic char is specified. */
- if (!CHARSET_DEFINED_P (charset) || CHARSET_DIMENSION (charset) == 1)
- code1 = 0;
- temp = XCHAR_TABLE (char_table)->contents[charset + 128];
- if (!code1)
- {
- if (SUB_CHAR_TABLE_P (temp))
- XCHAR_TABLE (temp)->defalt = value;
- else
- XCHAR_TABLE (char_table)->contents[charset + 128] = value;
- return value;
- }
- if (SUB_CHAR_TABLE_P (temp))
- char_table = temp;
- else
- char_table = (XCHAR_TABLE (char_table)->contents[charset + 128]
- = make_sub_char_table (temp));
- temp = XCHAR_TABLE (char_table)->contents[code1];
- if (SUB_CHAR_TABLE_P (temp))
- XCHAR_TABLE (temp)->defalt = value;
- else
- XCHAR_TABLE (char_table)->contents[code1] = value;
- return value;
-}
-
-/* Look up the element in TABLE at index CH,
- and return it as an integer.
- If the element is nil, return CH itself.
- (Actually we do that for any non-integer.) */
-
-int
-char_table_translate (table, ch)
- Lisp_Object table;
- int ch;
-{
- Lisp_Object value;
- value = Faref (table, make_number (ch));
- if (! INTEGERP (value))
- return ch;
- return XINT (value);
-}
-
-static void
-optimize_sub_char_table (table, chars)
- Lisp_Object *table;
- int chars;
-{
- Lisp_Object elt;
- int from, to;
-
- if (chars == 94)
- from = 33, to = 127;
- else
- from = 32, to = 128;
-
- if (!SUB_CHAR_TABLE_P (*table))
- return;
- elt = XCHAR_TABLE (*table)->contents[from++];
- for (; from < to; from++)
- if (NILP (Fequal (elt, XCHAR_TABLE (*table)->contents[from])))
- return;
- *table = elt;
-}
-
-DEFUN ("optimize-char-table", Foptimize_char_table, Soptimize_char_table,
- 1, 1, 0, doc: /* Optimize char table TABLE. */)
- (table)
- Lisp_Object table;
-{
- Lisp_Object elt;
- int dim;
- int i, j;
-
- CHECK_CHAR_TABLE (table);
-
- for (i = CHAR_TABLE_SINGLE_BYTE_SLOTS; i < CHAR_TABLE_ORDINARY_SLOTS; i++)
- {
- elt = XCHAR_TABLE (table)->contents[i];
- if (!SUB_CHAR_TABLE_P (elt))
- continue;
- dim = CHARSET_DIMENSION (i - 128);
- if (dim == 2)
- for (j = 32; j < SUB_CHAR_TABLE_ORDINARY_SLOTS; j++)
- optimize_sub_char_table (XCHAR_TABLE (elt)->contents + j, dim);
- optimize_sub_char_table (XCHAR_TABLE (table)->contents + i, dim);
- }
- return Qnil;
-}
-
-\f
-/* Map C_FUNCTION or FUNCTION over SUBTABLE, calling it for each
- character or group of characters that share a value.
- DEPTH is the current depth in the originally specified
- chartable, and INDICES contains the vector indices
- for the levels our callers have descended.
-
- ARG is passed to C_FUNCTION when that is called. */
-
-void
-map_char_table (c_function, function, subtable, arg, depth, indices)
- void (*c_function) P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
- Lisp_Object function, subtable, arg, *indices;
- int depth;
-{
- int i, to;
-
- if (depth == 0)
- {
- /* At first, handle ASCII and 8-bit European characters. */
- for (i = 0; i < CHAR_TABLE_SINGLE_BYTE_SLOTS; i++)
- {
- Lisp_Object elt = XCHAR_TABLE (subtable)->contents[i];
- if (c_function)
- (*c_function) (arg, make_number (i), elt);
- else
- call2 (function, make_number (i), elt);
- }
-#if 0 /* If the char table has entries for higher characters,
- we should report them. */
- if (NILP (current_buffer->enable_multibyte_characters))
- return;
-#endif
- to = CHAR_TABLE_ORDINARY_SLOTS;
- }
- else
- {
- int charset = XFASTINT (indices[0]) - 128;
-
- i = 32;
- to = SUB_CHAR_TABLE_ORDINARY_SLOTS;
- if (CHARSET_CHARS (charset) == 94)
- i++, to--;
- }
-
- for (; i < to; i++)
- {
- Lisp_Object elt;
- int charset;
-
- elt = XCHAR_TABLE (subtable)->contents[i];
- XSETFASTINT (indices[depth], i);
- charset = XFASTINT (indices[0]) - 128;
- if (depth == 0
- && (!CHARSET_DEFINED_P (charset)
- || charset == CHARSET_8_BIT_CONTROL
- || charset == CHARSET_8_BIT_GRAPHIC))
- continue;
-
- if (SUB_CHAR_TABLE_P (elt))
- {
- if (depth >= 3)
- error ("Too deep char table");
- map_char_table (c_function, function, elt, arg, depth + 1, indices);
- }
- else
- {
- int c1, c2, c;
-
- if (NILP (elt))
- elt = XCHAR_TABLE (subtable)->defalt;
- c1 = depth >= 1 ? XFASTINT (indices[1]) : 0;
- c2 = depth >= 2 ? XFASTINT (indices[2]) : 0;
- c = MAKE_CHAR (charset, c1, c2);
- if (c_function)
- (*c_function) (arg, make_number (c), elt);
- else
- call2 (function, make_number (c), elt);
- }
- }
-}
-
-DEFUN ("map-char-table", Fmap_char_table, Smap_char_table,
- 2, 2, 0,
- doc: /* Call FUNCTION for each (normal and generic) characters in CHAR-TABLE.
-FUNCTION is called with two arguments--a key and a value.
-The key is always a possible IDX argument to `aref'. */)
- (function, char_table)
- Lisp_Object function, char_table;
HCoop / bpt / emacs.git / blobdiff