return XCHAR_TABLE (char_table)->extras[XINT (n)] = value;
}
\f
+static Lisp_Object
+char_table_range (table, from, to, defalt)
+ Lisp_Object table;
+ int from, to;
+ Lisp_Object defalt;
+{
+ Lisp_Object val;
+
+ if (! NILP (XCHAR_TABLE (table)->defalt))
+ defalt = XCHAR_TABLE (table)->defalt;
+ val = XCHAR_TABLE (table)->contents[from];
+ if (SUB_CHAR_TABLE_P (val))
+ val = char_table_range (val, 32, 127, defalt);
+ else if (NILP (val))
+ val = defalt;
+ for (from++; from <= to; from++)
+ {
+ Lisp_Object this_val;
+
+ this_val = XCHAR_TABLE (table)->contents[from];
+ if (SUB_CHAR_TABLE_P (this_val))
+ this_val = char_table_range (this_val, 32, 127, defalt);
+ else if (NILP (this_val))
+ this_val = defalt;
+ if (! EQ (val, this_val))
+ error ("Characters in the range have inconsistent values");
+ }
+ return val;
+}
+
+
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. */)
+a character set name, or a character code.
+If the characters in the specified range have different values,
+an error is signalled.
+
+Note that this function doesn't check the parent of CHAR_TABLE. */)
(char_table, range)
Lisp_Object char_table, range;
{
+ int charset_id, c1 = 0, c2 = 0;
+ int size, i;
+ Lisp_Object ch, val, current_default;
+
CHECK_CHAR_TABLE (char_table);
if (EQ (range, Qnil))
return XCHAR_TABLE (char_table)->defalt;
- else if (INTEGERP (range))
- return Faref (char_table, range);
+ if (INTEGERP (range))
+ {
+ int c = XINT (range);
+ if (! CHAR_VALID_P (c, 0))
+ error ("Invalid character code: %d", c);
+ ch = range;
+ SPLIT_CHAR (c, charset_id, c1, c2);
+ }
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));
+ charset_id = XINT (XVECTOR (charset_info)->contents[0]);
+ ch = Fmake_char_internal (make_number (charset_id),
+ make_number (0), make_number (0));
}
else if (VECTORP (range))
{
- if (XVECTOR (range)->size == 1)
- return Faref (char_table,
- make_number (XINT (XVECTOR (range)->contents[0]) + 128));
- else
+ size = ASIZE (range);
+ if (size == 0)
+ args_out_of_range (range, 0);
+ CHECK_NUMBER (AREF (range, 0));
+ charset_id = XINT (AREF (range, 0));
+ if (size > 1)
{
- 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);
+ CHECK_NUMBER (AREF (range, 1));
+ c1 = XINT (AREF (range, 1));
+ if (size > 2)
+ {
+ CHECK_NUMBER (AREF (range, 2));
+ c2 = XINT (AREF (range, 2));
+ }
}
+
+ /* This checks if charset_id, c0, and c1 are all valid or not. */
+ ch = Fmake_char_internal (make_number (charset_id),
+ make_number (c1), make_number (c2));
}
else
error ("Invalid RANGE argument to `char-table-range'");
- return Qt;
+
+ if (c1 > 0 && (CHARSET_DIMENSION (charset_id) == 1 || c2 > 0))
+ {
+ /* Fully specified character. */
+ Lisp_Object parent = XCHAR_TABLE (char_table)->parent;
+
+ XCHAR_TABLE (char_table)->parent = Qnil;
+ val = Faref (char_table, ch);
+ XCHAR_TABLE (char_table)->parent = parent;
+ return val;
+ }
+
+ current_default = XCHAR_TABLE (char_table)->defalt;
+ if (charset_id == CHARSET_ASCII
+ || charset_id == CHARSET_8_BIT_CONTROL
+ || charset_id == CHARSET_8_BIT_GRAPHIC)
+ {
+ int from, to, defalt;
+
+ if (charset_id == CHARSET_ASCII)
+ from = 0, to = 127, defalt = CHAR_TABLE_DEFAULT_SLOT_ASCII;
+ else if (charset_id == CHARSET_8_BIT_CONTROL)
+ from = 128, to = 159, defalt = CHAR_TABLE_DEFAULT_SLOT_8_BIT_CONTROL;
+ else
+ from = 160, to = 255, defalt = CHAR_TABLE_DEFAULT_SLOT_8_BIT_GRAPHIC;
+ if (! NILP (XCHAR_TABLE (char_table)->contents[defalt]))
+ current_default = XCHAR_TABLE (char_table)->contents[defalt];
+ return char_table_range (char_table, from, to, current_default);
+ }
+
+ val = XCHAR_TABLE (char_table)->contents[128 + charset_id];
+ if (! SUB_CHAR_TABLE_P (val))
+ return (NILP (val) ? current_default : val);
+ if (! NILP (XCHAR_TABLE (val)->defalt))
+ current_default = XCHAR_TABLE (val)->defalt;
+ if (c1 == 0)
+ return char_table_range (val, 32, 127, current_default);
+ val = XCHAR_TABLE (val)->contents[c1];
+ if (! SUB_CHAR_TABLE_P (val))
+ return (NILP (val) ? current_default : val);
+ if (! NILP (XCHAR_TABLE (val)->defalt))
+ current_default = XCHAR_TABLE (val)->defalt;
+ return char_table_range (val, 32, 127, current_default);
}
DEFUN ("set-char-table-range", Fset_char_table_range, Sset_char_table_range,