static int
map_over_uint8_byte_table (Lisp_Uint8_Byte_Table *ct,
- int (*fn) (Emchar c, Lisp_Object val, void *arg),
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
void *arg, Emchar ofs, int place)
{
+ struct chartab_range rainj;
int i, retval;
int unit = 1 << (8 * place);
Emchar c = ofs;
Emchar c1;
+ rainj.type = CHARTAB_RANGE_CHAR;
+
for (i = 0, retval = 0; i < 256 && retval == 0; i++)
{
if (ct->property[i] != BT_UINT8_unbound)
{
c1 = c + unit;
for (; c < c1 && retval == 0; c++)
- retval = (fn) (c, UINT8_DECODE (ct->property[i]), arg);
+ {
+ rainj.ch = c;
+ retval = (fn) (&rainj, UINT8_DECODE (ct->property[i]), arg);
+ }
}
else
c += unit;
static int
map_over_uint16_byte_table (Lisp_Uint16_Byte_Table *ct,
- int (*fn) (Emchar c, Lisp_Object val, void *arg),
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
void *arg, Emchar ofs, int place)
{
+ struct chartab_range rainj;
int i, retval;
int unit = 1 << (8 * place);
Emchar c = ofs;
Emchar c1;
+ rainj.type = CHARTAB_RANGE_CHAR;
+
for (i = 0, retval = 0; i < 256 && retval == 0; i++)
{
if (ct->property[i] != BT_UINT16_unbound)
{
c1 = c + unit;
for (; c < c1 && retval == 0; c++)
- retval = (fn) (c, UINT16_DECODE (ct->property[i]), arg);
+ {
+ rainj.ch = c;
+ retval = (fn) (&rainj, UINT16_DECODE (ct->property[i]), arg);
+ }
}
else
c += unit;
static int
map_over_byte_table (Lisp_Byte_Table *ct,
- int (*fn) (Emchar c, Lisp_Object val, void *arg),
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
void *arg, Emchar ofs, int place)
{
int i, retval;
}
else if (!UNBOUNDP (v))
{
+ struct chartab_range rainj;
Emchar c1 = c + unit;
+ rainj.type = CHARTAB_RANGE_CHAR;
+
for (; c < c1 && retval == 0; c++)
- retval = (fn) (c, v, arg);
+ {
+ rainj.ch = c;
+ retval = (fn) (&rainj, v, arg);
+ }
}
else
c += unit;
becomes the return value of map_char_id_table(). */
int
map_char_id_table (Lisp_Char_ID_Table *ct,
- int (*fn) (Emchar c, Lisp_Object val, void *arg),
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
void *arg);
int
map_char_id_table (Lisp_Char_ID_Table *ct,
- int (*fn) (Emchar c, Lisp_Object val, void *arg),
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
void *arg)
{
Lisp_Object v = ct->table;
return map_over_byte_table (XBYTE_TABLE(v), fn, arg, 0, 3);
else if (!UNBOUNDP (v))
{
+ struct chartab_range rainj;
int unit = 1 << 24;
Emchar c = 0;
Emchar c1 = c + unit;
int retval;
+ rainj.type = CHARTAB_RANGE_CHAR;
+
for (retval = 0; c < c1 && retval == 0; c++)
- retval = (fn) (c, v, arg);
+ {
+ rainj.ch = c;
+ retval = (fn) (&rainj, v, arg);
+ }
}
return 0;
}
-struct slow_map_char_id_table_arg
-{
- Lisp_Object function;
- Lisp_Object retval;
-};
-
-static int
-slow_map_char_id_table_fun (Emchar c, Lisp_Object val, void *arg)
-{
- struct slow_map_char_id_table_arg *closure =
- (struct slow_map_char_id_table_arg *) arg;
-
- closure->retval = call2 (closure->function, make_char (c), val);
- return !NILP (closure->retval);
-}
-
-Lisp_Object Vchar_attribute_hash_table;
Lisp_Object Vcharacter_composition_table;
Lisp_Object Vcharacter_variant_table;
Vcharacter_variant_table));
}
+#endif
-/* We store the char-attributes in hash tables with the names as the
- key and the actual char-id-table object as the value. Occasionally
- we need to use them in a list format. These routines provide us
- with that. */
-struct char_attribute_list_closure
-{
- Lisp_Object *char_attribute_list;
-};
+\f
+/* A char table maps from ranges of characters to values.
-static int
-add_char_attribute_to_list_mapper (Lisp_Object key, Lisp_Object value,
- void *char_attribute_list_closure)
-{
- /* This function can GC */
- struct char_attribute_list_closure *calcl
- = (struct char_attribute_list_closure*) char_attribute_list_closure;
- Lisp_Object *char_attribute_list = calcl->char_attribute_list;
+ Implementing a general data structure that maps from arbitrary
+ ranges of numbers to values is tricky to do efficiently. As it
+ happens, it should suffice (and is usually more convenient, anyway)
+ when dealing with characters to restrict the sorts of ranges that
+ can be assigned values, as follows:
- *char_attribute_list = Fcons (key, *char_attribute_list);
- return 0;
-}
+ 1) All characters.
+ 2) All characters in a charset.
+ 3) All characters in a particular row of a charset, where a "row"
+ means all characters with the same first byte.
+ 4) A particular character in a charset.
-DEFUN ("char-attribute-list", Fchar_attribute_list, 0, 0, 0, /*
-Return the list of all existing character attributes except coded-charsets.
-*/
- ())
-{
- Lisp_Object char_attribute_list = Qnil;
- struct gcpro gcpro1;
- struct char_attribute_list_closure char_attribute_list_closure;
-
- GCPRO1 (char_attribute_list);
- char_attribute_list_closure.char_attribute_list = &char_attribute_list;
- elisp_maphash (add_char_attribute_to_list_mapper,
- Vchar_attribute_hash_table,
- &char_attribute_list_closure);
- UNGCPRO;
- return char_attribute_list;
-}
+ We use char tables to generalize the 256-element vectors now
+ littering the Emacs code.
-DEFUN ("find-char-attribute-table", Ffind_char_attribute_table, 1, 1, 0, /*
-Return char-id-table corresponding to ATTRIBUTE.
-*/
- (attribute))
-{
- return Fgethash (attribute, Vchar_attribute_hash_table, Qnil);
-}
+ Possible uses (all should be converted at some point):
+
+ 1) category tables
+ 2) syntax tables
+ 3) display tables
+ 4) case tables
+ 5) keyboard-translate-table?
+ We provide an
+ abstract type to generalize the Emacs vectors and Mule
+ vectors-of-vectors goo.
+ */
-/* We store the char-id-tables in hash tables with the attributes as
- the key and the actual char-id-table object as the value. Each
- char-id-table stores values of an attribute corresponding with
- characters. Occasionally we need to get attributes of a character
- in a association-list format. These routines provide us with
- that. */
-struct char_attribute_alist_closure
-{
- Emchar char_id;
- Lisp_Object *char_attribute_alist;
-};
+/************************************************************************/
+/* Char Table object */
+/************************************************************************/
-static int
-add_char_attribute_alist_mapper (Lisp_Object key, Lisp_Object value,
- void *char_attribute_alist_closure)
+#ifdef MULE
+
+static Lisp_Object
+mark_char_table_entry (Lisp_Object obj)
{
- /* This function can GC */
- struct char_attribute_alist_closure *caacl =
- (struct char_attribute_alist_closure*) char_attribute_alist_closure;
- Lisp_Object ret = get_char_id_table (caacl->char_id, value);
- if (!UNBOUNDP (ret))
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj);
+ int i;
+
+ for (i = 0; i < 96; i++)
{
- Lisp_Object *char_attribute_alist = caacl->char_attribute_alist;
- *char_attribute_alist
- = Fcons (Fcons (key, ret), *char_attribute_alist);
+ mark_object (cte->level2[i]);
}
- return 0;
+ return Qnil;
}
-DEFUN ("char-attribute-alist", Fchar_attribute_alist, 1, 1, 0, /*
-Return the alist of attributes of CHARACTER.
-*/
- (character))
+static int
+char_table_entry_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
{
- Lisp_Object alist = Qnil;
+ Lisp_Char_Table_Entry *cte1 = XCHAR_TABLE_ENTRY (obj1);
+ Lisp_Char_Table_Entry *cte2 = XCHAR_TABLE_ENTRY (obj2);
int i;
- CHECK_CHAR (character);
- {
- struct gcpro gcpro1;
- struct char_attribute_alist_closure char_attribute_alist_closure;
-
- GCPRO1 (alist);
- char_attribute_alist_closure.char_id = XCHAR (character);
- char_attribute_alist_closure.char_attribute_alist = &alist;
- elisp_maphash (add_char_attribute_alist_mapper,
- Vchar_attribute_hash_table,
- &char_attribute_alist_closure);
- UNGCPRO;
- }
+ for (i = 0; i < 96; i++)
+ if (!internal_equal (cte1->level2[i], cte2->level2[i], depth + 1))
+ return 0;
- for (i = 0; i < countof (chlook->charset_by_leading_byte); i++)
- {
- Lisp_Object ccs = chlook->charset_by_leading_byte[i];
+ return 1;
+}
- if (!NILP (ccs))
- {
- Lisp_Object encoding_table = XCHARSET_ENCODING_TABLE (ccs);
- Lisp_Object cpos;
+static unsigned long
+char_table_entry_hash (Lisp_Object obj, int depth)
+{
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj);
- if ( CHAR_ID_TABLE_P (encoding_table)
- && INTP (cpos = get_char_id_table (XCHAR (character),
- encoding_table)) )
- {
- alist = Fcons (Fcons (ccs, cpos), alist);
- }
- }
- }
- return alist;
+ return internal_array_hash (cte->level2, 96, depth);
}
-DEFUN ("get-char-attribute", Fget_char_attribute, 2, 3, 0, /*
-Return the value of CHARACTER's ATTRIBUTE.
-Return DEFAULT-VALUE if the value is not exist.
-*/
- (character, attribute, default_value))
+static const struct lrecord_description char_table_entry_description[] = {
+ { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table_Entry, level2), 96 },
+ { XD_END }
+};
+
+DEFINE_LRECORD_IMPLEMENTATION ("char-table-entry", char_table_entry,
+ mark_char_table_entry, internal_object_printer,
+ 0, char_table_entry_equal,
+ char_table_entry_hash,
+ char_table_entry_description,
+ Lisp_Char_Table_Entry);
+#endif /* MULE */
+
+static Lisp_Object
+mark_char_table (Lisp_Object obj)
{
- Lisp_Object ccs;
+ Lisp_Char_Table *ct = XCHAR_TABLE (obj);
+ int i;
- CHECK_CHAR (character);
- if (!NILP (ccs = Ffind_charset (attribute)))
- {
- Lisp_Object encoding_table = XCHARSET_ENCODING_TABLE (ccs);
+ for (i = 0; i < NUM_ASCII_CHARS; i++)
+ mark_object (ct->ascii[i]);
+#ifdef MULE
+ for (i = 0; i < NUM_LEADING_BYTES; i++)
+ mark_object (ct->level1[i]);
+#endif
+ return ct->mirror_table;
+}
- if (CHAR_ID_TABLE_P (encoding_table))
- return get_char_id_table (XCHAR (character), encoding_table);
- }
- else
+/* WARNING: All functions of this nature need to be written extremely
+ carefully to avoid crashes during GC. Cf. prune_specifiers()
+ and prune_weak_hash_tables(). */
+
+void
+prune_syntax_tables (void)
+{
+ Lisp_Object rest, prev = Qnil;
+
+ for (rest = Vall_syntax_tables;
+ !NILP (rest);
+ rest = XCHAR_TABLE (rest)->next_table)
{
- Lisp_Object table = Fgethash (attribute,
- Vchar_attribute_hash_table,
- Qunbound);
- if (!UNBOUNDP (table))
+ if (! marked_p (rest))
{
- Lisp_Object ret = get_char_id_table (XCHAR (character), table);
- if (!UNBOUNDP (ret))
- return ret;
+ /* This table is garbage. Remove it from the list. */
+ if (NILP (prev))
+ Vall_syntax_tables = XCHAR_TABLE (rest)->next_table;
+ else
+ XCHAR_TABLE (prev)->next_table =
+ XCHAR_TABLE (rest)->next_table;
}
}
- return default_value;
}
-DEFUN ("put-char-attribute", Fput_char_attribute, 3, 3, 0, /*
-Store CHARACTER's ATTRIBUTE with VALUE.
-*/
- (character, attribute, value))
-{
- Lisp_Object ccs;
+static Lisp_Object
+char_table_type_to_symbol (enum char_table_type type)
+{
+ switch (type)
+ {
+ default: abort();
+ case CHAR_TABLE_TYPE_GENERIC: return Qgeneric;
+ case CHAR_TABLE_TYPE_SYNTAX: return Qsyntax;
+ case CHAR_TABLE_TYPE_DISPLAY: return Qdisplay;
+ case CHAR_TABLE_TYPE_CHAR: return Qchar;
+#ifdef MULE
+ case CHAR_TABLE_TYPE_CATEGORY: return Qcategory;
+#endif
+ }
+}
- CHECK_CHAR (character);
- ccs = Ffind_charset (attribute);
- if (!NILP (ccs))
+static enum char_table_type
+symbol_to_char_table_type (Lisp_Object symbol)
+{
+ CHECK_SYMBOL (symbol);
+
+ if (EQ (symbol, Qgeneric)) return CHAR_TABLE_TYPE_GENERIC;
+ if (EQ (symbol, Qsyntax)) return CHAR_TABLE_TYPE_SYNTAX;
+ if (EQ (symbol, Qdisplay)) return CHAR_TABLE_TYPE_DISPLAY;
+ if (EQ (symbol, Qchar)) return CHAR_TABLE_TYPE_CHAR;
+#ifdef MULE
+ if (EQ (symbol, Qcategory)) return CHAR_TABLE_TYPE_CATEGORY;
+#endif
+
+ signal_simple_error ("Unrecognized char table type", symbol);
+ return CHAR_TABLE_TYPE_GENERIC; /* not reached */
+}
+
+static void
+print_chartab_range (Emchar first, Emchar last, Lisp_Object val,
+ Lisp_Object printcharfun)
+{
+ if (first != last)
{
- return put_char_ccs_code_point (character, ccs, value);
+ write_c_string (" (", printcharfun);
+ print_internal (make_char (first), printcharfun, 0);
+ write_c_string (" ", printcharfun);
+ print_internal (make_char (last), printcharfun, 0);
+ write_c_string (") ", printcharfun);
}
- else if (EQ (attribute, Q_decomposition))
+ else
{
- Lisp_Object seq;
-
- if (!CONSP (value))
- signal_simple_error ("Invalid value for ->decomposition",
- value);
+ write_c_string (" ", printcharfun);
+ print_internal (make_char (first), printcharfun, 0);
+ write_c_string (" ", printcharfun);
+ }
+ print_internal (val, printcharfun, 1);
+}
- if (CONSP (Fcdr (value)))
- {
- Lisp_Object rest = value;
- Lisp_Object table = Vcharacter_composition_table;
- size_t len;
- int i = 0;
+#ifdef MULE
- GET_EXTERNAL_LIST_LENGTH (rest, len);
- seq = make_vector (len, Qnil);
+static void
+print_chartab_charset_row (Lisp_Object charset,
+ int row,
+ Lisp_Char_Table_Entry *cte,
+ Lisp_Object printcharfun)
+{
+ int i;
+ Lisp_Object cat = Qunbound;
+ int first = -1;
- while (CONSP (rest))
- {
- Lisp_Object v = Fcar (rest);
- Lisp_Object ntable;
- Emchar c
- = to_char_id (v, "Invalid value for ->decomposition", value);
+ for (i = 32; i < 128; i++)
+ {
+ Lisp_Object pam = cte->level2[i - 32];
- if (c < 0)
- XVECTOR_DATA(seq)[i++] = v;
- else
- XVECTOR_DATA(seq)[i++] = make_char (c);
- rest = Fcdr (rest);
- if (!CONSP (rest))
- {
- put_char_id_table (c, character, table);
- break;
- }
- else
- {
- ntable = get_char_id_table (c, table);
- if (!CHAR_ID_TABLE_P (ntable))
- {
- ntable = make_char_id_table (Qnil);
- put_char_id_table (c, ntable, table);
- }
- table = ntable;
- }
- }
- }
- else
+ if (first == -1)
{
- Lisp_Object v = Fcar (value);
-
- if (INTP (v))
- {
- Emchar c = XINT (v);
- Lisp_Object ret
- = get_char_id_table (c, Vcharacter_variant_table);
-
- if (NILP (Fmemq (v, ret)))
- {
- put_char_id_table (c, Fcons (character, ret),
- Vcharacter_variant_table);
- }
- }
- seq = make_vector (1, v);
+ first = i;
+ cat = pam;
+ continue;
}
- value = seq;
- }
- else if (EQ (attribute, Qto_ucs) || EQ (attribute, Q_ucs))
- {
- Lisp_Object ret;
- Emchar c;
-
- if (!INTP (value))
- signal_simple_error ("Invalid value for ->ucs", value);
-
- c = XINT (value);
- ret = get_char_id_table (c, Vcharacter_variant_table);
- if (NILP (Fmemq (character, ret)))
+ if (!EQ (cat, pam))
{
- put_char_id_table (c, Fcons (character, ret),
- Vcharacter_variant_table);
+ if (row == -1)
+ print_chartab_range (MAKE_CHAR (charset, first, 0),
+ MAKE_CHAR (charset, i - 1, 0),
+ cat, printcharfun);
+ else
+ print_chartab_range (MAKE_CHAR (charset, row, first),
+ MAKE_CHAR (charset, row, i - 1),
+ cat, printcharfun);
+ first = -1;
+ i--;
}
-#if 0
- if (EQ (attribute, Q_ucs))
- attribute = Qto_ucs;
-#endif
}
- {
- Lisp_Object table = Fgethash (attribute,
- Vchar_attribute_hash_table,
- Qnil);
-
- if (NILP (table))
- {
- table = make_char_id_table (Qunbound);
- Fputhash (attribute, table, Vchar_attribute_hash_table);
- }
- put_char_id_table (XCHAR (character), value, table);
- return value;
- }
-}
-
-DEFUN ("remove-char-attribute", Fremove_char_attribute, 2, 2, 0, /*
-Remove CHARACTER's ATTRIBUTE.
-*/
- (character, attribute))
-{
- Lisp_Object ccs;
- CHECK_CHAR (character);
- ccs = Ffind_charset (attribute);
- if (!NILP (ccs))
- {
- return remove_char_ccs (character, ccs);
- }
- else
+ if (first != -1)
{
- Lisp_Object table = Fgethash (attribute,
- Vchar_attribute_hash_table,
- Qunbound);
- if (!UNBOUNDP (table))
- {
- put_char_id_table (XCHAR (character), Qunbound, table);
- return Qt;
- }
+ if (row == -1)
+ print_chartab_range (MAKE_CHAR (charset, first, 0),
+ MAKE_CHAR (charset, i - 1, 0),
+ cat, printcharfun);
+ else
+ print_chartab_range (MAKE_CHAR (charset, row, first),
+ MAKE_CHAR (charset, row, i - 1),
+ cat, printcharfun);
}
- return Qnil;
}
-DEFUN ("map-char-attribute", Fmap_char_attribute, 2, 2, 0, /*
-Map FUNCTION over entries in ATTRIBUTE, calling it with two args,
-each key and value in the table.
-*/
- (function, attribute))
+static void
+print_chartab_two_byte_charset (Lisp_Object charset,
+ Lisp_Char_Table_Entry *cte,
+ Lisp_Object printcharfun)
{
- Lisp_Object ccs;
- Lisp_Char_ID_Table *ct;
- struct slow_map_char_id_table_arg slarg;
- struct gcpro gcpro1, gcpro2;
+ int i;
- if (!NILP (ccs = Ffind_charset (attribute)))
+ for (i = 32; i < 128; i++)
{
- Lisp_Object encoding_table = XCHARSET_ENCODING_TABLE (ccs);
+ Lisp_Object jen = cte->level2[i - 32];
- if (CHAR_ID_TABLE_P (encoding_table))
- ct = XCHAR_ID_TABLE (encoding_table);
- else
- return Qnil;
- }
- else
- {
- Lisp_Object table = Fgethash (attribute,
- Vchar_attribute_hash_table,
- Qunbound);
- if (CHAR_ID_TABLE_P (table))
- ct = XCHAR_ID_TABLE (table);
+ if (!CHAR_TABLE_ENTRYP (jen))
+ {
+ char buf[100];
+
+ write_c_string (" [", printcharfun);
+ print_internal (XCHARSET_NAME (charset), printcharfun, 0);
+ sprintf (buf, " %d] ", i);
+ write_c_string (buf, printcharfun);
+ print_internal (jen, printcharfun, 0);
+ }
else
- return Qnil;
+ print_chartab_charset_row (charset, i, XCHAR_TABLE_ENTRY (jen),
+ printcharfun);
}
- slarg.function = function;
- slarg.retval = Qnil;
- GCPRO2 (slarg.function, slarg.retval);
- map_char_id_table (ct, slow_map_char_id_table_fun, &slarg);
- UNGCPRO;
-
- return slarg.retval;
}
-EXFUN (Fmake_char, 3);
-EXFUN (Fdecode_char, 2);
+#endif /* MULE */
-DEFUN ("define-char", Fdefine_char, 1, 1, 0, /*
-Store character's ATTRIBUTES.
-*/
- (attributes))
-{
- Lisp_Object rest = attributes;
- Lisp_Object code = Fcdr (Fassq (Qucs, attributes));
- Lisp_Object character;
-
- if (NILP (code))
- {
- while (CONSP (rest))
- {
- Lisp_Object cell = Fcar (rest);
- Lisp_Object ccs;
-
- if (!LISTP (cell))
- signal_simple_error ("Invalid argument", attributes);
- if (!NILP (ccs = Ffind_charset (Fcar (cell)))
- && ((XCHARSET_FINAL (ccs) != 0) ||
- (XCHARSET_UCS_MAX (ccs) > 0)) )
- {
- cell = Fcdr (cell);
- if (CONSP (cell))
- character = Fmake_char (ccs, Fcar (cell), Fcar (Fcdr (cell)));
- else
- character = Fdecode_char (ccs, cell);
- if (!NILP (character))
- goto setup_attributes;
- }
- rest = Fcdr (rest);
- }
- if ( (!NILP (code = Fcdr (Fassq (Qto_ucs, attributes)))) ||
- (!NILP (code = Fcdr (Fassq (Q_ucs, attributes)))) )
-
- {
- if (!INTP (code))
- signal_simple_error ("Invalid argument", attributes);
- else
- character = make_char (XINT (code) + 0x100000);
- goto setup_attributes;
- }
- return Qnil;
- }
- else if (!INTP (code))
- signal_simple_error ("Invalid argument", attributes);
- else
- character = make_char (XINT (code));
-
- setup_attributes:
- rest = attributes;
- while (CONSP (rest))
- {
- Lisp_Object cell = Fcar (rest);
-
- if (!LISTP (cell))
- signal_simple_error ("Invalid argument", attributes);
-
- Fput_char_attribute (character, Fcar (cell), Fcdr (cell));
- rest = Fcdr (rest);
- }
- return character;
-}
-
-DEFUN ("find-char", Ffind_char, 1, 1, 0, /*
-Retrieve the character of the given ATTRIBUTES.
-*/
- (attributes))
+static void
+print_char_table (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
{
- Lisp_Object rest = attributes;
- Lisp_Object code;
-
- while (CONSP (rest))
- {
- Lisp_Object cell = Fcar (rest);
- Lisp_Object ccs;
-
- if (!LISTP (cell))
- signal_simple_error ("Invalid argument", attributes);
- if (!NILP (ccs = Ffind_charset (Fcar (cell))))
- {
- cell = Fcdr (cell);
- if (CONSP (cell))
- return Fmake_char (ccs, Fcar (cell), Fcar (Fcdr (cell)));
- else
- return Fdecode_char (ccs, cell);
- }
- rest = Fcdr (rest);
- }
- if ( (!NILP (code = Fcdr (Fassq (Qto_ucs, attributes)))) ||
- (!NILP (code = Fcdr (Fassq (Q_ucs, attributes)))) )
- {
- if (!INTP (code))
- signal_simple_error ("Invalid argument", attributes);
- else
- return make_char (XINT (code) + 0x100000);
- }
- return Qnil;
-}
-
-#endif
-
-\f
-/* A char table maps from ranges of characters to values.
-
- Implementing a general data structure that maps from arbitrary
- ranges of numbers to values is tricky to do efficiently. As it
- happens, it should suffice (and is usually more convenient, anyway)
- when dealing with characters to restrict the sorts of ranges that
- can be assigned values, as follows:
-
- 1) All characters.
- 2) All characters in a charset.
- 3) All characters in a particular row of a charset, where a "row"
- means all characters with the same first byte.
- 4) A particular character in a charset.
+ Lisp_Char_Table *ct = XCHAR_TABLE (obj);
+ char buf[200];
- We use char tables to generalize the 256-element vectors now
- littering the Emacs code.
+ sprintf (buf, "#s(char-table type %s data (",
+ string_data (symbol_name (XSYMBOL
+ (char_table_type_to_symbol (ct->type)))));
+ write_c_string (buf, printcharfun);
- Possible uses (all should be converted at some point):
+ /* Now write out the ASCII/Control-1 stuff. */
+ {
+ int i;
+ int first = -1;
+ Lisp_Object val = Qunbound;
- 1) category tables
- 2) syntax tables
- 3) display tables
- 4) case tables
- 5) keyboard-translate-table?
+ for (i = 0; i < NUM_ASCII_CHARS; i++)
+ {
+ if (first == -1)
+ {
+ first = i;
+ val = ct->ascii[i];
+ continue;
+ }
- We provide an
- abstract type to generalize the Emacs vectors and Mule
- vectors-of-vectors goo.
- */
+ if (!EQ (ct->ascii[i], val))
+ {
+ print_chartab_range (first, i - 1, val, printcharfun);
+ first = -1;
+ i--;
+ }
+ }
-/************************************************************************/
-/* Char Table object */
-/************************************************************************/
+ if (first != -1)
+ print_chartab_range (first, i - 1, val, printcharfun);
+ }
#ifdef MULE
+ {
+ Charset_ID i;
-static Lisp_Object
-mark_char_table_entry (Lisp_Object obj)
-{
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj);
- int i;
+ for (i = MIN_LEADING_BYTE; i < MIN_LEADING_BYTE + NUM_LEADING_BYTES;
+ i++)
+ {
+ Lisp_Object ann = ct->level1[i - MIN_LEADING_BYTE];
+ Lisp_Object charset = CHARSET_BY_LEADING_BYTE (i);
- for (i = 0; i < 96; i++)
- {
- mark_object (cte->level2[i]);
- }
- return Qnil;
+ if (!CHARSETP (charset) || i == LEADING_BYTE_ASCII
+ || i == LEADING_BYTE_CONTROL_1)
+ continue;
+ if (!CHAR_TABLE_ENTRYP (ann))
+ {
+ write_c_string (" ", printcharfun);
+ print_internal (XCHARSET_NAME (charset),
+ printcharfun, 0);
+ write_c_string (" ", printcharfun);
+ print_internal (ann, printcharfun, 0);
+ }
+ else
+ {
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (ann);
+ if (XCHARSET_DIMENSION (charset) == 1)
+ print_chartab_charset_row (charset, -1, cte, printcharfun);
+ else
+ print_chartab_two_byte_charset (charset, cte, printcharfun);
+ }
+ }
+ }
+#endif /* MULE */
+
+ write_c_string ("))", printcharfun);
}
static int
-char_table_entry_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
+char_table_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
{
- Lisp_Char_Table_Entry *cte1 = XCHAR_TABLE_ENTRY (obj1);
- Lisp_Char_Table_Entry *cte2 = XCHAR_TABLE_ENTRY (obj2);
+ Lisp_Char_Table *ct1 = XCHAR_TABLE (obj1);
+ Lisp_Char_Table *ct2 = XCHAR_TABLE (obj2);
int i;
- for (i = 0; i < 96; i++)
- if (!internal_equal (cte1->level2[i], cte2->level2[i], depth + 1))
+ if (CHAR_TABLE_TYPE (ct1) != CHAR_TABLE_TYPE (ct2))
+ return 0;
+
+ for (i = 0; i < NUM_ASCII_CHARS; i++)
+ if (!internal_equal (ct1->ascii[i], ct2->ascii[i], depth + 1))
+ return 0;
+
+#ifdef MULE
+ for (i = 0; i < NUM_LEADING_BYTES; i++)
+ if (!internal_equal (ct1->level1[i], ct2->level1[i], depth + 1))
return 0;
+#endif /* MULE */
return 1;
}
static unsigned long
-char_table_entry_hash (Lisp_Object obj, int depth)
+char_table_hash (Lisp_Object obj, int depth)
{
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (obj);
-
- return internal_array_hash (cte->level2, 96, depth);
+ Lisp_Char_Table *ct = XCHAR_TABLE (obj);
+ unsigned long hashval = internal_array_hash (ct->ascii, NUM_ASCII_CHARS,
+ depth);
+#ifdef MULE
+ hashval = HASH2 (hashval,
+ internal_array_hash (ct->level1, NUM_LEADING_BYTES, depth));
+#endif /* MULE */
+ return hashval;
}
-static const struct lrecord_description char_table_entry_description[] = {
- { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table_Entry, level2), 96 },
+static const struct lrecord_description char_table_description[] = {
+ { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, ascii), NUM_ASCII_CHARS },
+#ifdef MULE
+ { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, level1), NUM_LEADING_BYTES },
+#endif
+ { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, mirror_table) },
+ { XD_LO_LINK, offsetof (Lisp_Char_Table, next_table) },
{ XD_END }
};
-DEFINE_LRECORD_IMPLEMENTATION ("char-table-entry", char_table_entry,
- mark_char_table_entry, internal_object_printer,
- 0, char_table_entry_equal,
- char_table_entry_hash,
- char_table_entry_description,
- Lisp_Char_Table_Entry);
-#endif /* MULE */
+DEFINE_LRECORD_IMPLEMENTATION ("char-table", char_table,
+ mark_char_table, print_char_table, 0,
+ char_table_equal, char_table_hash,
+ char_table_description,
+ Lisp_Char_Table);
-static Lisp_Object
-mark_char_table (Lisp_Object obj)
+DEFUN ("char-table-p", Fchar_table_p, 1, 1, 0, /*
+Return non-nil if OBJECT is a char table.
+
+A char table is a table that maps characters (or ranges of characters)
+to values. Char tables are specialized for characters, only allowing
+particular sorts of ranges to be assigned values. Although this
+loses in generality, it makes for extremely fast (constant-time)
+lookups, and thus is feasible for applications that do an extremely
+large number of lookups (e.g. scanning a buffer for a character in
+a particular syntax, where a lookup in the syntax table must occur
+once per character).
+
+When Mule support exists, the types of ranges that can be assigned
+values are
+
+-- all characters
+-- an entire charset
+-- a single row in a two-octet charset
+-- a single character
+
+When Mule support is not present, the types of ranges that can be
+assigned values are
+
+-- all characters
+-- a single character
+
+To create a char table, use `make-char-table'.
+To modify a char table, use `put-char-table' or `remove-char-table'.
+To retrieve the value for a particular character, use `get-char-table'.
+See also `map-char-table', `clear-char-table', `copy-char-table',
+`valid-char-table-type-p', `char-table-type-list',
+`valid-char-table-value-p', and `check-char-table-value'.
+*/
+ (object))
{
- Lisp_Char_Table *ct = XCHAR_TABLE (obj);
- int i;
+ return CHAR_TABLEP (object) ? Qt : Qnil;
+}
- for (i = 0; i < NUM_ASCII_CHARS; i++)
- mark_object (ct->ascii[i]);
+DEFUN ("char-table-type-list", Fchar_table_type_list, 0, 0, 0, /*
+Return a list of the recognized char table types.
+See `valid-char-table-type-p'.
+*/
+ ())
+{
#ifdef MULE
- for (i = 0; i < NUM_LEADING_BYTES; i++)
- mark_object (ct->level1[i]);
+ return list5 (Qchar, Qcategory, Qdisplay, Qgeneric, Qsyntax);
+#else
+ return list4 (Qchar, Qdisplay, Qgeneric, Qsyntax);
#endif
- return ct->mirror_table;
}
-/* WARNING: All functions of this nature need to be written extremely
- carefully to avoid crashes during GC. Cf. prune_specifiers()
- and prune_weak_hash_tables(). */
+DEFUN ("valid-char-table-type-p", Fvalid_char_table_type_p, 1, 1, 0, /*
+Return t if TYPE if a recognized char table type.
-void
-prune_syntax_tables (void)
+Each char table type is used for a different purpose and allows different
+sorts of values. The different char table types are
+
+`category'
+ Used for category tables, which specify the regexp categories
+ that a character is in. The valid values are nil or a
+ bit vector of 95 elements. Higher-level Lisp functions are
+ provided for working with category tables. Currently categories
+ and category tables only exist when Mule support is present.
+`char'
+ A generalized char table, for mapping from one character to
+ another. Used for case tables, syntax matching tables,
+ `keyboard-translate-table', etc. The valid values are characters.
+`generic'
+ An even more generalized char table, for mapping from a
+ character to anything.
+`display'
+ Used for display tables, which specify how a particular character
+ is to appear when displayed. #### Not yet implemented.
+`syntax'
+ Used for syntax tables, which specify the syntax of a particular
+ character. Higher-level Lisp functions are provided for
+ working with syntax tables. The valid values are integers.
+
+*/
+ (type))
{
- Lisp_Object rest, prev = Qnil;
+ return (EQ (type, Qchar) ||
+#ifdef MULE
+ EQ (type, Qcategory) ||
+#endif
+ EQ (type, Qdisplay) ||
+ EQ (type, Qgeneric) ||
+ EQ (type, Qsyntax)) ? Qt : Qnil;
+}
- for (rest = Vall_syntax_tables;
- !NILP (rest);
- rest = XCHAR_TABLE (rest)->next_table)
- {
- if (! marked_p (rest))
- {
- /* This table is garbage. Remove it from the list. */
- if (NILP (prev))
- Vall_syntax_tables = XCHAR_TABLE (rest)->next_table;
- else
- XCHAR_TABLE (prev)->next_table =
- XCHAR_TABLE (rest)->next_table;
- }
- }
+DEFUN ("char-table-type", Fchar_table_type, 1, 1, 0, /*
+Return the type of CHAR-TABLE.
+See `valid-char-table-type-p'.
+*/
+ (char_table))
+{
+ CHECK_CHAR_TABLE (char_table);
+ return char_table_type_to_symbol (XCHAR_TABLE (char_table)->type);
}
-static Lisp_Object
-char_table_type_to_symbol (enum char_table_type type)
+void
+fill_char_table (Lisp_Char_Table *ct, Lisp_Object value)
{
- switch (type)
- {
- default: abort();
- case CHAR_TABLE_TYPE_GENERIC: return Qgeneric;
- case CHAR_TABLE_TYPE_SYNTAX: return Qsyntax;
- case CHAR_TABLE_TYPE_DISPLAY: return Qdisplay;
- case CHAR_TABLE_TYPE_CHAR: return Qchar;
+ int i;
+
+ for (i = 0; i < NUM_ASCII_CHARS; i++)
+ ct->ascii[i] = value;
#ifdef MULE
- case CHAR_TABLE_TYPE_CATEGORY: return Qcategory;
-#endif
- }
+ for (i = 0; i < NUM_LEADING_BYTES; i++)
+ ct->level1[i] = value;
+#endif /* MULE */
+
+ if (ct->type == CHAR_TABLE_TYPE_SYNTAX)
+ update_syntax_table (ct);
}
-static enum char_table_type
-symbol_to_char_table_type (Lisp_Object symbol)
+DEFUN ("reset-char-table", Freset_char_table, 1, 1, 0, /*
+Reset CHAR-TABLE to its default state.
+*/
+ (char_table))
{
- CHECK_SYMBOL (symbol);
+ Lisp_Char_Table *ct;
- if (EQ (symbol, Qgeneric)) return CHAR_TABLE_TYPE_GENERIC;
- if (EQ (symbol, Qsyntax)) return CHAR_TABLE_TYPE_SYNTAX;
- if (EQ (symbol, Qdisplay)) return CHAR_TABLE_TYPE_DISPLAY;
- if (EQ (symbol, Qchar)) return CHAR_TABLE_TYPE_CHAR;
+ CHECK_CHAR_TABLE (char_table);
+ ct = XCHAR_TABLE (char_table);
+
+ switch (ct->type)
+ {
+ case CHAR_TABLE_TYPE_CHAR:
+ fill_char_table (ct, make_char (0));
+ break;
+ case CHAR_TABLE_TYPE_DISPLAY:
+ case CHAR_TABLE_TYPE_GENERIC:
#ifdef MULE
- if (EQ (symbol, Qcategory)) return CHAR_TABLE_TYPE_CATEGORY;
-#endif
+ case CHAR_TABLE_TYPE_CATEGORY:
+#endif /* MULE */
+ fill_char_table (ct, Qnil);
+ break;
- signal_simple_error ("Unrecognized char table type", symbol);
- return CHAR_TABLE_TYPE_GENERIC; /* not reached */
+ case CHAR_TABLE_TYPE_SYNTAX:
+ fill_char_table (ct, make_int (Sinherit));
+ break;
+
+ default:
+ abort ();
+ }
+
+ return Qnil;
}
-static void
-print_chartab_range (Emchar first, Emchar last, Lisp_Object val,
- Lisp_Object printcharfun)
+DEFUN ("make-char-table", Fmake_char_table, 1, 1, 0, /*
+Return a new, empty char table of type TYPE.
+Currently recognized types are 'char, 'category, 'display, 'generic,
+and 'syntax. See `valid-char-table-type-p'.
+*/
+ (type))
{
- if (first != last)
+ Lisp_Char_Table *ct;
+ Lisp_Object obj;
+ enum char_table_type ty = symbol_to_char_table_type (type);
+
+ ct = alloc_lcrecord_type (Lisp_Char_Table, &lrecord_char_table);
+ ct->type = ty;
+ if (ty == CHAR_TABLE_TYPE_SYNTAX)
{
- write_c_string (" (", printcharfun);
- print_internal (make_char (first), printcharfun, 0);
- write_c_string (" ", printcharfun);
- print_internal (make_char (last), printcharfun, 0);
- write_c_string (") ", printcharfun);
+ ct->mirror_table = Fmake_char_table (Qgeneric);
+ fill_char_table (XCHAR_TABLE (ct->mirror_table),
+ make_int (Spunct));
}
else
+ ct->mirror_table = Qnil;
+ ct->next_table = Qnil;
+ XSETCHAR_TABLE (obj, ct);
+ if (ty == CHAR_TABLE_TYPE_SYNTAX)
{
- write_c_string (" ", printcharfun);
- print_internal (make_char (first), printcharfun, 0);
- write_c_string (" ", printcharfun);
+ ct->next_table = Vall_syntax_tables;
+ Vall_syntax_tables = obj;
}
- print_internal (val, printcharfun, 1);
+ Freset_char_table (obj);
+ return obj;
}
#ifdef MULE
-static void
-print_chartab_charset_row (Lisp_Object charset,
- int row,
- Lisp_Char_Table_Entry *cte,
- Lisp_Object printcharfun)
+static Lisp_Object
+make_char_table_entry (Lisp_Object initval)
{
+ Lisp_Object obj;
int i;
- Lisp_Object cat = Qunbound;
- int first = -1;
+ Lisp_Char_Table_Entry *cte =
+ alloc_lcrecord_type (Lisp_Char_Table_Entry, &lrecord_char_table_entry);
- for (i = 32; i < 128; i++)
- {
- Lisp_Object pam = cte->level2[i - 32];
+ for (i = 0; i < 96; i++)
+ cte->level2[i] = initval;
- if (first == -1)
- {
- first = i;
- cat = pam;
- continue;
- }
+ XSETCHAR_TABLE_ENTRY (obj, cte);
+ return obj;
+}
- if (!EQ (cat, pam))
- {
- if (row == -1)
- print_chartab_range (MAKE_CHAR (charset, first, 0),
- MAKE_CHAR (charset, i - 1, 0),
- cat, printcharfun);
- else
- print_chartab_range (MAKE_CHAR (charset, row, first),
- MAKE_CHAR (charset, row, i - 1),
- cat, printcharfun);
- first = -1;
- i--;
- }
- }
+static Lisp_Object
+copy_char_table_entry (Lisp_Object entry)
+{
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (entry);
+ Lisp_Object obj;
+ int i;
+ Lisp_Char_Table_Entry *ctenew =
+ alloc_lcrecord_type (Lisp_Char_Table_Entry, &lrecord_char_table_entry);
- if (first != -1)
+ for (i = 0; i < 96; i++)
{
- if (row == -1)
- print_chartab_range (MAKE_CHAR (charset, first, 0),
- MAKE_CHAR (charset, i - 1, 0),
- cat, printcharfun);
+ Lisp_Object new = cte->level2[i];
+ if (CHAR_TABLE_ENTRYP (new))
+ ctenew->level2[i] = copy_char_table_entry (new);
else
- print_chartab_range (MAKE_CHAR (charset, row, first),
- MAKE_CHAR (charset, row, i - 1),
- cat, printcharfun);
+ ctenew->level2[i] = new;
}
+
+ XSETCHAR_TABLE_ENTRY (obj, ctenew);
+ return obj;
}
-static void
-print_chartab_two_byte_charset (Lisp_Object charset,
- Lisp_Char_Table_Entry *cte,
- Lisp_Object printcharfun)
+#endif /* MULE */
+
+DEFUN ("copy-char-table", Fcopy_char_table, 1, 1, 0, /*
+Return a new char table which is a copy of CHAR-TABLE.
+It will contain the same values for the same characters and ranges
+as CHAR-TABLE. The values will not themselves be copied.
+*/
+ (char_table))
{
+ Lisp_Char_Table *ct, *ctnew;
+ Lisp_Object obj;
int i;
- for (i = 32; i < 128; i++)
+ CHECK_CHAR_TABLE (char_table);
+ ct = XCHAR_TABLE (char_table);
+ ctnew = alloc_lcrecord_type (Lisp_Char_Table, &lrecord_char_table);
+ ctnew->type = ct->type;
+
+ for (i = 0; i < NUM_ASCII_CHARS; i++)
{
- Lisp_Object jen = cte->level2[i - 32];
+ Lisp_Object new = ct->ascii[i];
+#ifdef MULE
+ assert (! (CHAR_TABLE_ENTRYP (new)));
+#endif /* MULE */
+ ctnew->ascii[i] = new;
+ }
- if (!CHAR_TABLE_ENTRYP (jen))
- {
- char buf[100];
+#ifdef MULE
- write_c_string (" [", printcharfun);
- print_internal (XCHARSET_NAME (charset), printcharfun, 0);
- sprintf (buf, " %d] ", i);
- write_c_string (buf, printcharfun);
- print_internal (jen, printcharfun, 0);
- }
+ for (i = 0; i < NUM_LEADING_BYTES; i++)
+ {
+ Lisp_Object new = ct->level1[i];
+ if (CHAR_TABLE_ENTRYP (new))
+ ctnew->level1[i] = copy_char_table_entry (new);
else
- print_chartab_charset_row (charset, i, XCHAR_TABLE_ENTRY (jen),
- printcharfun);
+ ctnew->level1[i] = new;
}
-}
#endif /* MULE */
+ if (CHAR_TABLEP (ct->mirror_table))
+ ctnew->mirror_table = Fcopy_char_table (ct->mirror_table);
+ else
+ ctnew->mirror_table = ct->mirror_table;
+ ctnew->next_table = Qnil;
+ XSETCHAR_TABLE (obj, ctnew);
+ if (ctnew->type == CHAR_TABLE_TYPE_SYNTAX)
+ {
+ ctnew->next_table = Vall_syntax_tables;
+ Vall_syntax_tables = obj;
+ }
+ return obj;
+}
+
static void
-print_char_table (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
+decode_char_table_range (Lisp_Object range, struct chartab_range *outrange)
{
- Lisp_Char_Table *ct = XCHAR_TABLE (obj);
- char buf[200];
+ if (EQ (range, Qt))
+ outrange->type = CHARTAB_RANGE_ALL;
+ else if (CHAR_OR_CHAR_INTP (range))
+ {
+ outrange->type = CHARTAB_RANGE_CHAR;
+ outrange->ch = XCHAR_OR_CHAR_INT (range);
+ }
+#ifndef MULE
+ else
+ signal_simple_error ("Range must be t or a character", range);
+#else /* MULE */
+ else if (VECTORP (range))
+ {
+ Lisp_Vector *vec = XVECTOR (range);
+ Lisp_Object *elts = vector_data (vec);
+ if (vector_length (vec) != 2)
+ signal_simple_error ("Length of charset row vector must be 2",
+ range);
+ outrange->type = CHARTAB_RANGE_ROW;
+ outrange->charset = Fget_charset (elts[0]);
+ CHECK_INT (elts[1]);
+ outrange->row = XINT (elts[1]);
+ if (XCHARSET_DIMENSION (outrange->charset) >= 2)
+ {
+ switch (XCHARSET_CHARS (outrange->charset))
+ {
+ case 94:
+ check_int_range (outrange->row, 33, 126);
+ break;
+ case 96:
+ check_int_range (outrange->row, 32, 127);
+ break;
+ default:
+ abort ();
+ }
+ }
+ else
+ signal_simple_error ("Charset in row vector must be multi-byte",
+ outrange->charset);
+ }
+ else
+ {
+ if (!CHARSETP (range) && !SYMBOLP (range))
+ signal_simple_error
+ ("Char table range must be t, charset, char, or vector", range);
+ outrange->type = CHARTAB_RANGE_CHARSET;
+ outrange->charset = Fget_charset (range);
+ }
+#endif /* MULE */
+}
- sprintf (buf, "#s(char-table type %s data (",
- string_data (symbol_name (XSYMBOL
- (char_table_type_to_symbol (ct->type)))));
- write_c_string (buf, printcharfun);
+#ifdef MULE
- /* Now write out the ASCII/Control-1 stuff. */
- {
- int i;
- int first = -1;
- Lisp_Object val = Qunbound;
+/* called from CHAR_TABLE_VALUE(). */
+Lisp_Object
+get_non_ascii_char_table_value (Lisp_Char_Table *ct, Charset_ID leading_byte,
+ Emchar c)
+{
+ Lisp_Object val;
+#ifdef UTF2000
+ Lisp_Object charset;
+#else
+ Lisp_Object charset = CHARSET_BY_LEADING_BYTE (leading_byte);
+#endif
+ int byte1, byte2;
- for (i = 0; i < NUM_ASCII_CHARS; i++)
- {
- if (first == -1)
- {
- first = i;
- val = ct->ascii[i];
- continue;
- }
+#ifdef UTF2000
+ BREAKUP_CHAR (c, charset, byte1, byte2);
+#else
+ BREAKUP_CHAR_1_UNSAFE (c, charset, byte1, byte2);
+#endif
+ val = ct->level1[leading_byte - MIN_LEADING_BYTE];
+ if (CHAR_TABLE_ENTRYP (val))
+ {
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val);
+ val = cte->level2[byte1 - 32];
+ if (CHAR_TABLE_ENTRYP (val))
+ {
+ cte = XCHAR_TABLE_ENTRY (val);
+ assert (byte2 >= 32);
+ val = cte->level2[byte2 - 32];
+ assert (!CHAR_TABLE_ENTRYP (val));
+ }
+ }
- if (!EQ (ct->ascii[i], val))
- {
- print_chartab_range (first, i - 1, val, printcharfun);
- first = -1;
- i--;
- }
- }
+ return val;
+}
- if (first != -1)
- print_chartab_range (first, i - 1, val, printcharfun);
- }
+#endif /* MULE */
+Lisp_Object
+get_char_table (Emchar ch, Lisp_Char_Table *ct)
+{
#ifdef MULE
{
- Charset_ID i;
+ Lisp_Object charset;
+ int byte1, byte2;
+ Lisp_Object val;
- for (i = MIN_LEADING_BYTE; i < MIN_LEADING_BYTE + NUM_LEADING_BYTES;
- i++)
- {
- Lisp_Object ann = ct->level1[i - MIN_LEADING_BYTE];
- Lisp_Object charset = CHARSET_BY_LEADING_BYTE (i);
+ BREAKUP_CHAR (ch, charset, byte1, byte2);
- if (!CHARSETP (charset) || i == LEADING_BYTE_ASCII
- || i == LEADING_BYTE_CONTROL_1)
- continue;
- if (!CHAR_TABLE_ENTRYP (ann))
- {
- write_c_string (" ", printcharfun);
- print_internal (XCHARSET_NAME (charset),
- printcharfun, 0);
- write_c_string (" ", printcharfun);
- print_internal (ann, printcharfun, 0);
- }
- else
+ if (EQ (charset, Vcharset_ascii))
+ val = ct->ascii[byte1];
+ else if (EQ (charset, Vcharset_control_1))
+ val = ct->ascii[byte1 + 128];
+ else
+ {
+ int lb = XCHARSET_LEADING_BYTE (charset) - MIN_LEADING_BYTE;
+ val = ct->level1[lb];
+ if (CHAR_TABLE_ENTRYP (val))
{
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (ann);
- if (XCHARSET_DIMENSION (charset) == 1)
- print_chartab_charset_row (charset, -1, cte, printcharfun);
- else
- print_chartab_two_byte_charset (charset, cte, printcharfun);
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val);
+ val = cte->level2[byte1 - 32];
+ if (CHAR_TABLE_ENTRYP (val))
+ {
+ cte = XCHAR_TABLE_ENTRY (val);
+ assert (byte2 >= 32);
+ val = cte->level2[byte2 - 32];
+ assert (!CHAR_TABLE_ENTRYP (val));
+ }
}
}
+
+ return val;
}
-#endif /* MULE */
+#else /* not MULE */
+ return ct->ascii[(unsigned char)ch];
+#endif /* not MULE */
+}
- write_c_string ("))", printcharfun);
+
+DEFUN ("get-char-table", Fget_char_table, 2, 2, 0, /*
+Find value for CHARACTER in CHAR-TABLE.
+*/
+ (character, char_table))
+{
+ CHECK_CHAR_TABLE (char_table);
+ CHECK_CHAR_COERCE_INT (character);
+
+ return get_char_table (XCHAR (character), XCHAR_TABLE (char_table));
}
-static int
-char_table_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
+DEFUN ("get-range-char-table", Fget_range_char_table, 2, 3, 0, /*
+Find value for a range in CHAR-TABLE.
+If there is more than one value, return MULTI (defaults to nil).
+*/
+ (range, char_table, multi))
{
- Lisp_Char_Table *ct1 = XCHAR_TABLE (obj1);
- Lisp_Char_Table *ct2 = XCHAR_TABLE (obj2);
- int i;
+ Lisp_Char_Table *ct;
+ struct chartab_range rainj;
- if (CHAR_TABLE_TYPE (ct1) != CHAR_TABLE_TYPE (ct2))
- return 0;
+ if (CHAR_OR_CHAR_INTP (range))
+ return Fget_char_table (range, char_table);
+ CHECK_CHAR_TABLE (char_table);
+ ct = XCHAR_TABLE (char_table);
- for (i = 0; i < NUM_ASCII_CHARS; i++)
- if (!internal_equal (ct1->ascii[i], ct2->ascii[i], depth + 1))
- return 0;
+ decode_char_table_range (range, &rainj);
+ switch (rainj.type)
+ {
+ case CHARTAB_RANGE_ALL:
+ {
+ int i;
+ Lisp_Object first = ct->ascii[0];
+
+ for (i = 1; i < NUM_ASCII_CHARS; i++)
+ if (!EQ (first, ct->ascii[i]))
+ return multi;
#ifdef MULE
- for (i = 0; i < NUM_LEADING_BYTES; i++)
- if (!internal_equal (ct1->level1[i], ct2->level1[i], depth + 1))
- return 0;
+ for (i = MIN_LEADING_BYTE; i < MIN_LEADING_BYTE + NUM_LEADING_BYTES;
+ i++)
+ {
+ if (!CHARSETP (CHARSET_BY_LEADING_BYTE (i))
+ || i == LEADING_BYTE_ASCII
+ || i == LEADING_BYTE_CONTROL_1)
+ continue;
+ if (!EQ (first, ct->level1[i - MIN_LEADING_BYTE]))
+ return multi;
+ }
#endif /* MULE */
- return 1;
-}
+ return first;
+ }
-static unsigned long
-char_table_hash (Lisp_Object obj, int depth)
-{
- Lisp_Char_Table *ct = XCHAR_TABLE (obj);
- unsigned long hashval = internal_array_hash (ct->ascii, NUM_ASCII_CHARS,
- depth);
#ifdef MULE
- hashval = HASH2 (hashval,
- internal_array_hash (ct->level1, NUM_LEADING_BYTES, depth));
-#endif /* MULE */
- return hashval;
+ case CHARTAB_RANGE_CHARSET:
+ if (EQ (rainj.charset, Vcharset_ascii))
+ {
+ int i;
+ Lisp_Object first = ct->ascii[0];
+
+ for (i = 1; i < 128; i++)
+ if (!EQ (first, ct->ascii[i]))
+ return multi;
+ return first;
+ }
+
+ if (EQ (rainj.charset, Vcharset_control_1))
+ {
+ int i;
+ Lisp_Object first = ct->ascii[128];
+
+ for (i = 129; i < 160; i++)
+ if (!EQ (first, ct->ascii[i]))
+ return multi;
+ return first;
+ }
+
+ {
+ Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (rainj.charset) -
+ MIN_LEADING_BYTE];
+ if (CHAR_TABLE_ENTRYP (val))
+ return multi;
+ return val;
+ }
+
+ case CHARTAB_RANGE_ROW:
+ {
+ Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (rainj.charset) -
+ MIN_LEADING_BYTE];
+ if (!CHAR_TABLE_ENTRYP (val))
+ return val;
+ val = XCHAR_TABLE_ENTRY (val)->level2[rainj.row - 32];
+ if (CHAR_TABLE_ENTRYP (val))
+ return multi;
+ return val;
+ }
+#endif /* not MULE */
+
+ default:
+ abort ();
+ }
+
+ return Qnil; /* not reached */
}
-static const struct lrecord_description char_table_description[] = {
- { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, ascii), NUM_ASCII_CHARS },
-#ifdef MULE
- { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Char_Table, level1), NUM_LEADING_BYTES },
-#endif
- { XD_LISP_OBJECT, offsetof (Lisp_Char_Table, mirror_table) },
- { XD_LO_LINK, offsetof (Lisp_Char_Table, next_table) },
- { XD_END }
-};
+static int
+check_valid_char_table_value (Lisp_Object value, enum char_table_type type,
+ Error_behavior errb)
+{
+ switch (type)
+ {
+ case CHAR_TABLE_TYPE_SYNTAX:
+ if (!ERRB_EQ (errb, ERROR_ME))
+ return INTP (value) || (CONSP (value) && INTP (XCAR (value))
+ && CHAR_OR_CHAR_INTP (XCDR (value)));
+ if (CONSP (value))
+ {
+ Lisp_Object cdr = XCDR (value);
+ CHECK_INT (XCAR (value));
+ CHECK_CHAR_COERCE_INT (cdr);
+ }
+ else
+ CHECK_INT (value);
+ break;
-DEFINE_LRECORD_IMPLEMENTATION ("char-table", char_table,
- mark_char_table, print_char_table, 0,
- char_table_equal, char_table_hash,
- char_table_description,
- Lisp_Char_Table);
+#ifdef MULE
+ case CHAR_TABLE_TYPE_CATEGORY:
+ if (!ERRB_EQ (errb, ERROR_ME))
+ return CATEGORY_TABLE_VALUEP (value);
+ CHECK_CATEGORY_TABLE_VALUE (value);
+ break;
+#endif /* MULE */
-DEFUN ("char-table-p", Fchar_table_p, 1, 1, 0, /*
-Return non-nil if OBJECT is a char table.
+ case CHAR_TABLE_TYPE_GENERIC:
+ return 1;
-A char table is a table that maps characters (or ranges of characters)
-to values. Char tables are specialized for characters, only allowing
-particular sorts of ranges to be assigned values. Although this
-loses in generality, it makes for extremely fast (constant-time)
-lookups, and thus is feasible for applications that do an extremely
-large number of lookups (e.g. scanning a buffer for a character in
-a particular syntax, where a lookup in the syntax table must occur
-once per character).
+ case CHAR_TABLE_TYPE_DISPLAY:
+ /* #### fix this */
+ maybe_signal_simple_error ("Display char tables not yet implemented",
+ value, Qchar_table, errb);
+ return 0;
-When Mule support exists, the types of ranges that can be assigned
-values are
+ case CHAR_TABLE_TYPE_CHAR:
+ if (!ERRB_EQ (errb, ERROR_ME))
+ return CHAR_OR_CHAR_INTP (value);
+ CHECK_CHAR_COERCE_INT (value);
+ break;
--- all characters
--- an entire charset
--- a single row in a two-octet charset
--- a single character
+ default:
+ abort ();
+ }
-When Mule support is not present, the types of ranges that can be
-assigned values are
+ return 0; /* not reached */
+}
--- all characters
--- a single character
+static Lisp_Object
+canonicalize_char_table_value (Lisp_Object value, enum char_table_type type)
+{
+ switch (type)
+ {
+ case CHAR_TABLE_TYPE_SYNTAX:
+ if (CONSP (value))
+ {
+ Lisp_Object car = XCAR (value);
+ Lisp_Object cdr = XCDR (value);
+ CHECK_CHAR_COERCE_INT (cdr);
+ return Fcons (car, cdr);
+ }
+ break;
+ case CHAR_TABLE_TYPE_CHAR:
+ CHECK_CHAR_COERCE_INT (value);
+ break;
+ default:
+ break;
+ }
+ return value;
+}
-To create a char table, use `make-char-table'.
-To modify a char table, use `put-char-table' or `remove-char-table'.
-To retrieve the value for a particular character, use `get-char-table'.
-See also `map-char-table', `clear-char-table', `copy-char-table',
-`valid-char-table-type-p', `char-table-type-list',
-`valid-char-table-value-p', and `check-char-table-value'.
+DEFUN ("valid-char-table-value-p", Fvalid_char_table_value_p, 2, 2, 0, /*
+Return non-nil if VALUE is a valid value for CHAR-TABLE-TYPE.
*/
- (object))
+ (value, char_table_type))
{
- return CHAR_TABLEP (object) ? Qt : Qnil;
+ enum char_table_type type = symbol_to_char_table_type (char_table_type);
+
+ return check_valid_char_table_value (value, type, ERROR_ME_NOT) ? Qt : Qnil;
}
-DEFUN ("char-table-type-list", Fchar_table_type_list, 0, 0, 0, /*
-Return a list of the recognized char table types.
-See `valid-char-table-type-p'.
+DEFUN ("check-valid-char-table-value", Fcheck_valid_char_table_value, 2, 2, 0, /*
+Signal an error if VALUE is not a valid value for CHAR-TABLE-TYPE.
*/
- ())
+ (value, char_table_type))
{
-#ifdef MULE
- return list5 (Qchar, Qcategory, Qdisplay, Qgeneric, Qsyntax);
-#else
- return list4 (Qchar, Qdisplay, Qgeneric, Qsyntax);
-#endif
-}
+ enum char_table_type type = symbol_to_char_table_type (char_table_type);
-DEFUN ("valid-char-table-type-p", Fvalid_char_table_type_p, 1, 1, 0, /*
-Return t if TYPE if a recognized char table type.
+ check_valid_char_table_value (value, type, ERROR_ME);
+ return Qnil;
+}
-Each char table type is used for a different purpose and allows different
-sorts of values. The different char table types are
-
-`category'
- Used for category tables, which specify the regexp categories
- that a character is in. The valid values are nil or a
- bit vector of 95 elements. Higher-level Lisp functions are
- provided for working with category tables. Currently categories
- and category tables only exist when Mule support is present.
-`char'
- A generalized char table, for mapping from one character to
- another. Used for case tables, syntax matching tables,
- `keyboard-translate-table', etc. The valid values are characters.
-`generic'
- An even more generalized char table, for mapping from a
- character to anything.
-`display'
- Used for display tables, which specify how a particular character
- is to appear when displayed. #### Not yet implemented.
-`syntax'
- Used for syntax tables, which specify the syntax of a particular
- character. Higher-level Lisp functions are provided for
- working with syntax tables. The valid values are integers.
-
-*/
- (type))
-{
- return (EQ (type, Qchar) ||
-#ifdef MULE
- EQ (type, Qcategory) ||
-#endif
- EQ (type, Qdisplay) ||
- EQ (type, Qgeneric) ||
- EQ (type, Qsyntax)) ? Qt : Qnil;
-}
-
-DEFUN ("char-table-type", Fchar_table_type, 1, 1, 0, /*
-Return the type of CHAR-TABLE.
-See `valid-char-table-type-p'.
-*/
- (char_table))
-{
- CHECK_CHAR_TABLE (char_table);
- return char_table_type_to_symbol (XCHAR_TABLE (char_table)->type);
-}
+/* Assign VAL to all characters in RANGE in char table CT. */
void
-fill_char_table (Lisp_Char_Table *ct, Lisp_Object value)
+put_char_table (Lisp_Char_Table *ct, struct chartab_range *range,
+ Lisp_Object val)
{
- int i;
+ switch (range->type)
+ {
+ case CHARTAB_RANGE_ALL:
+ fill_char_table (ct, val);
+ return; /* avoid the duplicate call to update_syntax_table() below,
+ since fill_char_table() also did that. */
- for (i = 0; i < NUM_ASCII_CHARS; i++)
- ct->ascii[i] = value;
#ifdef MULE
- for (i = 0; i < NUM_LEADING_BYTES; i++)
- ct->level1[i] = value;
+ case CHARTAB_RANGE_CHARSET:
+ if (EQ (range->charset, Vcharset_ascii))
+ {
+ int i;
+ for (i = 0; i < 128; i++)
+ ct->ascii[i] = val;
+ }
+ else if (EQ (range->charset, Vcharset_control_1))
+ {
+ int i;
+ for (i = 128; i < 160; i++)
+ ct->ascii[i] = val;
+ }
+ else
+ {
+ int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE;
+ ct->level1[lb] = val;
+ }
+ break;
+
+ case CHARTAB_RANGE_ROW:
+ {
+ Lisp_Char_Table_Entry *cte;
+ int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE;
+ /* make sure that there is a separate entry for the row. */
+ if (!CHAR_TABLE_ENTRYP (ct->level1[lb]))
+ ct->level1[lb] = make_char_table_entry (ct->level1[lb]);
+ cte = XCHAR_TABLE_ENTRY (ct->level1[lb]);
+ cte->level2[range->row - 32] = val;
+ }
+ break;
#endif /* MULE */
+ case CHARTAB_RANGE_CHAR:
+#ifdef MULE
+ {
+ Lisp_Object charset;
+ int byte1, byte2;
+
+ BREAKUP_CHAR (range->ch, charset, byte1, byte2);
+ if (EQ (charset, Vcharset_ascii))
+ ct->ascii[byte1] = val;
+ else if (EQ (charset, Vcharset_control_1))
+ ct->ascii[byte1 + 128] = val;
+ else
+ {
+ Lisp_Char_Table_Entry *cte;
+ int lb = XCHARSET_LEADING_BYTE (charset) - MIN_LEADING_BYTE;
+ /* make sure that there is a separate entry for the row. */
+ if (!CHAR_TABLE_ENTRYP (ct->level1[lb]))
+ ct->level1[lb] = make_char_table_entry (ct->level1[lb]);
+ cte = XCHAR_TABLE_ENTRY (ct->level1[lb]);
+ /* now CTE is a char table entry for the charset;
+ each entry is for a single row (or character of
+ a one-octet charset). */
+ if (XCHARSET_DIMENSION (charset) == 1)
+ cte->level2[byte1 - 32] = val;
+ else
+ {
+ /* assigning to one character in a two-octet charset. */
+ /* make sure that the charset row contains a separate
+ entry for each character. */
+ if (!CHAR_TABLE_ENTRYP (cte->level2[byte1 - 32]))
+ cte->level2[byte1 - 32] =
+ make_char_table_entry (cte->level2[byte1 - 32]);
+ cte = XCHAR_TABLE_ENTRY (cte->level2[byte1 - 32]);
+ cte->level2[byte2 - 32] = val;
+ }
+ }
+ }
+#else /* not MULE */
+ ct->ascii[(unsigned char) (range->ch)] = val;
+ break;
+#endif /* not MULE */
+ }
+
if (ct->type == CHAR_TABLE_TYPE_SYNTAX)
update_syntax_table (ct);
}
-DEFUN ("reset-char-table", Freset_char_table, 1, 1, 0, /*
-Reset CHAR-TABLE to its default state.
+DEFUN ("put-char-table", Fput_char_table, 3, 3, 0, /*
+Set the value for chars in RANGE to be VALUE in CHAR-TABLE.
+
+RANGE specifies one or more characters to be affected and should be
+one of the following:
+
+-- t (all characters are affected)
+-- A charset (only allowed when Mule support is present)
+-- A vector of two elements: a two-octet charset and a row number
+ (only allowed when Mule support is present)
+-- A single character
+
+VALUE must be a value appropriate for the type of CHAR-TABLE.
+See `valid-char-table-type-p'.
*/
- (char_table))
+ (range, value, char_table))
{
Lisp_Char_Table *ct;
+ struct chartab_range rainj;
CHECK_CHAR_TABLE (char_table);
ct = XCHAR_TABLE (char_table);
+ check_valid_char_table_value (value, ct->type, ERROR_ME);
+ decode_char_table_range (range, &rainj);
+ value = canonicalize_char_table_value (value, ct->type);
+ put_char_table (ct, &rainj, value);
+ return Qnil;
+}
- switch (ct->type)
- {
- case CHAR_TABLE_TYPE_CHAR:
- fill_char_table (ct, make_char (0));
- break;
- case CHAR_TABLE_TYPE_DISPLAY:
- case CHAR_TABLE_TYPE_GENERIC:
+/* Map FN over the ASCII chars in CT. */
+
+static int
+map_over_charset_ascii (Lisp_Char_Table *ct,
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
+ void *arg)
+{
+ struct chartab_range rainj;
+ int i, retval;
+ int start = 0;
#ifdef MULE
- case CHAR_TABLE_TYPE_CATEGORY:
-#endif /* MULE */
- fill_char_table (ct, Qnil);
- break;
+ int stop = 128;
+#else
+ int stop = 256;
+#endif
- case CHAR_TABLE_TYPE_SYNTAX:
- fill_char_table (ct, make_int (Sinherit));
- break;
+ rainj.type = CHARTAB_RANGE_CHAR;
- default:
- abort ();
+ for (i = start, retval = 0; i < stop && retval == 0; i++)
+ {
+ rainj.ch = (Emchar) i;
+ retval = (fn) (&rainj, ct->ascii[i], arg);
}
- return Qnil;
+ return retval;
}
-DEFUN ("make-char-table", Fmake_char_table, 1, 1, 0, /*
-Return a new, empty char table of type TYPE.
-Currently recognized types are 'char, 'category, 'display, 'generic,
-and 'syntax. See `valid-char-table-type-p'.
-*/
- (type))
+#ifdef MULE
+
+/* Map FN over the Control-1 chars in CT. */
+
+static int
+map_over_charset_control_1 (Lisp_Char_Table *ct,
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
+ void *arg)
{
- Lisp_Char_Table *ct;
- Lisp_Object obj;
- enum char_table_type ty = symbol_to_char_table_type (type);
+ struct chartab_range rainj;
+ int i, retval;
+ int start = 128;
+ int stop = start + 32;
- ct = alloc_lcrecord_type (Lisp_Char_Table, &lrecord_char_table);
- ct->type = ty;
- if (ty == CHAR_TABLE_TYPE_SYNTAX)
- {
- ct->mirror_table = Fmake_char_table (Qgeneric);
- fill_char_table (XCHAR_TABLE (ct->mirror_table),
- make_int (Spunct));
- }
- else
- ct->mirror_table = Qnil;
- ct->next_table = Qnil;
- XSETCHAR_TABLE (obj, ct);
- if (ty == CHAR_TABLE_TYPE_SYNTAX)
+ rainj.type = CHARTAB_RANGE_CHAR;
+
+ for (i = start, retval = 0; i < stop && retval == 0; i++)
{
- ct->next_table = Vall_syntax_tables;
- Vall_syntax_tables = obj;
+ rainj.ch = (Emchar) (i);
+ retval = (fn) (&rainj, ct->ascii[i], arg);
}
- Freset_char_table (obj);
- return obj;
+
+ return retval;
}
-#ifdef MULE
+/* Map FN over the row ROW of two-byte charset CHARSET.
+ There must be a separate value for that row in the char table.
+ CTE specifies the char table entry for CHARSET. */
-static Lisp_Object
-make_char_table_entry (Lisp_Object initval)
+static int
+map_over_charset_row (Lisp_Char_Table_Entry *cte,
+ Lisp_Object charset, int row,
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
+ void *arg)
{
- Lisp_Object obj;
- int i;
- Lisp_Char_Table_Entry *cte =
- alloc_lcrecord_type (Lisp_Char_Table_Entry, &lrecord_char_table_entry);
+ Lisp_Object val = cte->level2[row - 32];
- for (i = 0; i < 96; i++)
- cte->level2[i] = initval;
-
- XSETCHAR_TABLE_ENTRY (obj, cte);
- return obj;
-}
-
-static Lisp_Object
-copy_char_table_entry (Lisp_Object entry)
-{
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (entry);
- Lisp_Object obj;
- int i;
- Lisp_Char_Table_Entry *ctenew =
- alloc_lcrecord_type (Lisp_Char_Table_Entry, &lrecord_char_table_entry);
-
- for (i = 0; i < 96; i++)
+ if (!CHAR_TABLE_ENTRYP (val))
{
- Lisp_Object new = cte->level2[i];
- if (CHAR_TABLE_ENTRYP (new))
- ctenew->level2[i] = copy_char_table_entry (new);
- else
- ctenew->level2[i] = new;
- }
-
- XSETCHAR_TABLE_ENTRY (obj, ctenew);
- return obj;
-}
-
-#endif /* MULE */
-
-DEFUN ("copy-char-table", Fcopy_char_table, 1, 1, 0, /*
-Return a new char table which is a copy of CHAR-TABLE.
-It will contain the same values for the same characters and ranges
-as CHAR-TABLE. The values will not themselves be copied.
-*/
- (char_table))
-{
- Lisp_Char_Table *ct, *ctnew;
- Lisp_Object obj;
- int i;
-
- CHECK_CHAR_TABLE (char_table);
- ct = XCHAR_TABLE (char_table);
- ctnew = alloc_lcrecord_type (Lisp_Char_Table, &lrecord_char_table);
- ctnew->type = ct->type;
+ struct chartab_range rainj;
- for (i = 0; i < NUM_ASCII_CHARS; i++)
- {
- Lisp_Object new = ct->ascii[i];
-#ifdef MULE
- assert (! (CHAR_TABLE_ENTRYP (new)));
-#endif /* MULE */
- ctnew->ascii[i] = new;
+ rainj.type = CHARTAB_RANGE_ROW;
+ rainj.charset = charset;
+ rainj.row = row;
+ return (fn) (&rainj, val, arg);
}
-
-#ifdef MULE
-
- for (i = 0; i < NUM_LEADING_BYTES; i++)
+ else
{
- Lisp_Object new = ct->level1[i];
- if (CHAR_TABLE_ENTRYP (new))
- ctnew->level1[i] = copy_char_table_entry (new);
- else
- ctnew->level1[i] = new;
- }
+ struct chartab_range rainj;
+ int i, retval;
+ int charset94_p = (XCHARSET_CHARS (charset) == 94);
+ int start = charset94_p ? 33 : 32;
+ int stop = charset94_p ? 127 : 128;
-#endif /* MULE */
+ cte = XCHAR_TABLE_ENTRY (val);
- if (CHAR_TABLEP (ct->mirror_table))
- ctnew->mirror_table = Fcopy_char_table (ct->mirror_table);
- else
- ctnew->mirror_table = ct->mirror_table;
- ctnew->next_table = Qnil;
- XSETCHAR_TABLE (obj, ctnew);
- if (ctnew->type == CHAR_TABLE_TYPE_SYNTAX)
- {
- ctnew->next_table = Vall_syntax_tables;
- Vall_syntax_tables = obj;
- }
- return obj;
-}
+ rainj.type = CHARTAB_RANGE_CHAR;
-static void
-decode_char_table_range (Lisp_Object range, struct chartab_range *outrange)
-{
- if (EQ (range, Qt))
- outrange->type = CHARTAB_RANGE_ALL;
- else if (CHAR_OR_CHAR_INTP (range))
- {
- outrange->type = CHARTAB_RANGE_CHAR;
- outrange->ch = XCHAR_OR_CHAR_INT (range);
- }
-#ifndef MULE
- else
- signal_simple_error ("Range must be t or a character", range);
-#else /* MULE */
- else if (VECTORP (range))
- {
- Lisp_Vector *vec = XVECTOR (range);
- Lisp_Object *elts = vector_data (vec);
- if (vector_length (vec) != 2)
- signal_simple_error ("Length of charset row vector must be 2",
- range);
- outrange->type = CHARTAB_RANGE_ROW;
- outrange->charset = Fget_charset (elts[0]);
- CHECK_INT (elts[1]);
- outrange->row = XINT (elts[1]);
- if (XCHARSET_DIMENSION (outrange->charset) >= 2)
+ for (i = start, retval = 0; i < stop && retval == 0; i++)
{
- switch (XCHARSET_CHARS (outrange->charset))
- {
- case 94:
- check_int_range (outrange->row, 33, 126);
- break;
- case 96:
- check_int_range (outrange->row, 32, 127);
- break;
- default:
- abort ();
- }
+ rainj.ch = MAKE_CHAR (charset, row, i);
+ retval = (fn) (&rainj, cte->level2[i - 32], arg);
}
- else
- signal_simple_error ("Charset in row vector must be multi-byte",
- outrange->charset);
- }
- else
- {
- if (!CHARSETP (range) && !SYMBOLP (range))
- signal_simple_error
- ("Char table range must be t, charset, char, or vector", range);
- outrange->type = CHARTAB_RANGE_CHARSET;
- outrange->charset = Fget_charset (range);
+ return retval;
}
-#endif /* MULE */
}
-#ifdef MULE
-/* called from CHAR_TABLE_VALUE(). */
-Lisp_Object
-get_non_ascii_char_table_value (Lisp_Char_Table *ct, Charset_ID leading_byte,
- Emchar c)
+static int
+map_over_other_charset (Lisp_Char_Table *ct, Charset_ID lb,
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
+ void *arg)
{
- Lisp_Object val;
-#ifdef UTF2000
- Lisp_Object charset;
-#else
- Lisp_Object charset = CHARSET_BY_LEADING_BYTE (leading_byte);
-#endif
- int byte1, byte2;
+ Lisp_Object val = ct->level1[lb - MIN_LEADING_BYTE];
+ Lisp_Object charset = CHARSET_BY_LEADING_BYTE (lb);
-#ifdef UTF2000
- BREAKUP_CHAR (c, charset, byte1, byte2);
-#else
- BREAKUP_CHAR_1_UNSAFE (c, charset, byte1, byte2);
-#endif
- val = ct->level1[leading_byte - MIN_LEADING_BYTE];
- if (CHAR_TABLE_ENTRYP (val))
- {
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val);
- val = cte->level2[byte1 - 32];
- if (CHAR_TABLE_ENTRYP (val))
- {
- cte = XCHAR_TABLE_ENTRY (val);
- assert (byte2 >= 32);
- val = cte->level2[byte2 - 32];
- assert (!CHAR_TABLE_ENTRYP (val));
- }
- }
+ if (!CHARSETP (charset)
+ || lb == LEADING_BYTE_ASCII
+ || lb == LEADING_BYTE_CONTROL_1)
+ return 0;
- return val;
-}
+ if (!CHAR_TABLE_ENTRYP (val))
+ {
+ struct chartab_range rainj;
-#endif /* MULE */
+ rainj.type = CHARTAB_RANGE_CHARSET;
+ rainj.charset = charset;
+ return (fn) (&rainj, val, arg);
+ }
-Lisp_Object
-get_char_table (Emchar ch, Lisp_Char_Table *ct)
-{
-#ifdef MULE
{
- Lisp_Object charset;
- int byte1, byte2;
- Lisp_Object val;
-
- BREAKUP_CHAR (ch, charset, byte1, byte2);
+ Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val);
+ int charset94_p = (XCHARSET_CHARS (charset) == 94);
+ int start = charset94_p ? 33 : 32;
+ int stop = charset94_p ? 127 : 128;
+ int i, retval;
- if (EQ (charset, Vcharset_ascii))
- val = ct->ascii[byte1];
- else if (EQ (charset, Vcharset_control_1))
- val = ct->ascii[byte1 + 128];
- else
+ if (XCHARSET_DIMENSION (charset) == 1)
{
- int lb = XCHARSET_LEADING_BYTE (charset) - MIN_LEADING_BYTE;
- val = ct->level1[lb];
- if (CHAR_TABLE_ENTRYP (val))
+ struct chartab_range rainj;
+ rainj.type = CHARTAB_RANGE_CHAR;
+
+ for (i = start, retval = 0; i < stop && retval == 0; i++)
{
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val);
- val = cte->level2[byte1 - 32];
- if (CHAR_TABLE_ENTRYP (val))
- {
- cte = XCHAR_TABLE_ENTRY (val);
- assert (byte2 >= 32);
- val = cte->level2[byte2 - 32];
- assert (!CHAR_TABLE_ENTRYP (val));
- }
+ rainj.ch = MAKE_CHAR (charset, i, 0);
+ retval = (fn) (&rainj, cte->level2[i - 32], arg);
}
}
+ else
+ {
+ for (i = start, retval = 0; i < stop && retval == 0; i++)
+ retval = map_over_charset_row (cte, charset, i, fn, arg);
+ }
- return val;
+ return retval;
}
-#else /* not MULE */
- return ct->ascii[(unsigned char)ch];
-#endif /* not MULE */
}
+#endif /* MULE */
-DEFUN ("get-char-table", Fget_char_table, 2, 2, 0, /*
-Find value for CHARACTER in CHAR-TABLE.
-*/
- (character, char_table))
-{
- CHECK_CHAR_TABLE (char_table);
- CHECK_CHAR_COERCE_INT (character);
-
- return get_char_table (XCHAR (character), XCHAR_TABLE (char_table));
-}
+/* Map FN (with client data ARG) over range RANGE in char table CT.
+ Mapping stops the first time FN returns non-zero, and that value
+ becomes the return value of map_char_table(). */
-DEFUN ("get-range-char-table", Fget_range_char_table, 2, 3, 0, /*
-Find value for a range in CHAR-TABLE.
-If there is more than one value, return MULTI (defaults to nil).
-*/
- (range, char_table, multi))
+int
+map_char_table (Lisp_Char_Table *ct,
+ struct chartab_range *range,
+ int (*fn) (struct chartab_range *range,
+ Lisp_Object val, void *arg),
+ void *arg)
{
- Lisp_Char_Table *ct;
- struct chartab_range rainj;
-
- if (CHAR_OR_CHAR_INTP (range))
- return Fget_char_table (range, char_table);
- CHECK_CHAR_TABLE (char_table);
- ct = XCHAR_TABLE (char_table);
-
- decode_char_table_range (range, &rainj);
- switch (rainj.type)
+ switch (range->type)
{
case CHARTAB_RANGE_ALL:
{
- int i;
- Lisp_Object first = ct->ascii[0];
-
- for (i = 1; i < NUM_ASCII_CHARS; i++)
- if (!EQ (first, ct->ascii[i]))
- return multi;
+ int retval;
+ retval = map_over_charset_ascii (ct, fn, arg);
+ if (retval)
+ return retval;
#ifdef MULE
- for (i = MIN_LEADING_BYTE; i < MIN_LEADING_BYTE + NUM_LEADING_BYTES;
- i++)
- {
- if (!CHARSETP (CHARSET_BY_LEADING_BYTE (i))
- || i == LEADING_BYTE_ASCII
- || i == LEADING_BYTE_CONTROL_1)
- continue;
- if (!EQ (first, ct->level1[i - MIN_LEADING_BYTE]))
- return multi;
- }
-#endif /* MULE */
+ retval = map_over_charset_control_1 (ct, fn, arg);
+ if (retval)
+ return retval;
+ {
+ Charset_ID i;
+ Charset_ID start = MIN_LEADING_BYTE;
+ Charset_ID stop = start + NUM_LEADING_BYTES;
- return first;
+ for (i = start, retval = 0; i < stop && retval == 0; i++)
+ {
+ retval = map_over_other_charset (ct, i, fn, arg);
+ }
+ }
+#endif /* MULE */
+ return retval;
}
#ifdef MULE
case CHARTAB_RANGE_CHARSET:
- if (EQ (rainj.charset, Vcharset_ascii))
- {
- int i;
- Lisp_Object first = ct->ascii[0];
-
- for (i = 1; i < 128; i++)
- if (!EQ (first, ct->ascii[i]))
- return multi;
- return first;
- }
-
- if (EQ (rainj.charset, Vcharset_control_1))
- {
- int i;
- Lisp_Object first = ct->ascii[128];
-
- for (i = 129; i < 160; i++)
- if (!EQ (first, ct->ascii[i]))
- return multi;
- return first;
- }
+ return map_over_other_charset (ct,
+ XCHARSET_LEADING_BYTE (range->charset),
+ fn, arg);
+ case CHARTAB_RANGE_ROW:
{
- Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (rainj.charset) -
- MIN_LEADING_BYTE];
- if (CHAR_TABLE_ENTRYP (val))
- return multi;
- return val;
+ Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (range->charset)
+ - MIN_LEADING_BYTE];
+ if (!CHAR_TABLE_ENTRYP (val))
+ {
+ struct chartab_range rainj;
+
+ rainj.type = CHARTAB_RANGE_ROW;
+ rainj.charset = range->charset;
+ rainj.row = range->row;
+ return (fn) (&rainj, val, arg);
+ }
+ else
+ return map_over_charset_row (XCHAR_TABLE_ENTRY (val),
+ range->charset, range->row,
+ fn, arg);
}
+#endif /* MULE */
- case CHARTAB_RANGE_ROW:
+ case CHARTAB_RANGE_CHAR:
{
- Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (rainj.charset) -
- MIN_LEADING_BYTE];
- if (!CHAR_TABLE_ENTRYP (val))
- return val;
- val = XCHAR_TABLE_ENTRY (val)->level2[rainj.row - 32];
- if (CHAR_TABLE_ENTRYP (val))
- return multi;
- return val;
+ Emchar ch = range->ch;
+ Lisp_Object val = CHAR_TABLE_VALUE_UNSAFE (ct, ch);
+ struct chartab_range rainj;
+
+ rainj.type = CHARTAB_RANGE_CHAR;
+ rainj.ch = ch;
+ return (fn) (&rainj, val, arg);
}
-#endif /* not MULE */
default:
abort ();
}
- return Qnil; /* not reached */
+ return 0;
}
+struct slow_map_char_table_arg
+{
+ Lisp_Object function;
+ Lisp_Object retval;
+};
+
static int
-check_valid_char_table_value (Lisp_Object value, enum char_table_type type,
- Error_behavior errb)
+slow_map_char_table_fun (struct chartab_range *range,
+ Lisp_Object val, void *arg)
{
- switch (type)
+ Lisp_Object ranjarg = Qnil;
+ struct slow_map_char_table_arg *closure =
+ (struct slow_map_char_table_arg *) arg;
+
+ switch (range->type)
{
- case CHAR_TABLE_TYPE_SYNTAX:
- if (!ERRB_EQ (errb, ERROR_ME))
- return INTP (value) || (CONSP (value) && INTP (XCAR (value))
- && CHAR_OR_CHAR_INTP (XCDR (value)));
- if (CONSP (value))
- {
- Lisp_Object cdr = XCDR (value);
- CHECK_INT (XCAR (value));
- CHECK_CHAR_COERCE_INT (cdr);
- }
- else
- CHECK_INT (value);
+ case CHARTAB_RANGE_ALL:
+ ranjarg = Qt;
break;
#ifdef MULE
- case CHAR_TABLE_TYPE_CATEGORY:
- if (!ERRB_EQ (errb, ERROR_ME))
- return CATEGORY_TABLE_VALUEP (value);
- CHECK_CATEGORY_TABLE_VALUE (value);
+ case CHARTAB_RANGE_CHARSET:
+ ranjarg = XCHARSET_NAME (range->charset);
break;
-#endif /* MULE */
- case CHAR_TABLE_TYPE_GENERIC:
- return 1;
-
- case CHAR_TABLE_TYPE_DISPLAY:
- /* #### fix this */
- maybe_signal_simple_error ("Display char tables not yet implemented",
- value, Qchar_table, errb);
- return 0;
-
- case CHAR_TABLE_TYPE_CHAR:
- if (!ERRB_EQ (errb, ERROR_ME))
- return CHAR_OR_CHAR_INTP (value);
- CHECK_CHAR_COERCE_INT (value);
+ case CHARTAB_RANGE_ROW:
+ ranjarg = vector2 (XCHARSET_NAME (range->charset),
+ make_int (range->row));
+ break;
+#endif /* MULE */
+ case CHARTAB_RANGE_CHAR:
+ ranjarg = make_char (range->ch);
break;
-
default:
abort ();
}
- return 0; /* not reached */
+ closure->retval = call2 (closure->function, ranjarg, val);
+ return !NILP (closure->retval);
}
-static Lisp_Object
-canonicalize_char_table_value (Lisp_Object value, enum char_table_type type)
-{
- switch (type)
- {
- case CHAR_TABLE_TYPE_SYNTAX:
- if (CONSP (value))
- {
- Lisp_Object car = XCAR (value);
- Lisp_Object cdr = XCDR (value);
- CHECK_CHAR_COERCE_INT (cdr);
- return Fcons (car, cdr);
- }
- break;
- case CHAR_TABLE_TYPE_CHAR:
- CHECK_CHAR_COERCE_INT (value);
- break;
- default:
- break;
- }
- return value;
-}
+DEFUN ("map-char-table", Fmap_char_table, 2, 3, 0, /*
+Map FUNCTION over entries in CHAR-TABLE, calling it with two args,
+each key and value in the table.
-DEFUN ("valid-char-table-value-p", Fvalid_char_table_value_p, 2, 2, 0, /*
-Return non-nil if VALUE is a valid value for CHAR-TABLE-TYPE.
+RANGE specifies a subrange to map over and is in the same format as
+the RANGE argument to `put-range-table'. If omitted or t, it defaults to
+the entire table.
*/
- (value, char_table_type))
+ (function, char_table, range))
{
- enum char_table_type type = symbol_to_char_table_type (char_table_type);
+ Lisp_Char_Table *ct;
+ struct slow_map_char_table_arg slarg;
+ struct gcpro gcpro1, gcpro2;
+ struct chartab_range rainj;
- return check_valid_char_table_value (value, type, ERROR_ME_NOT) ? Qt : Qnil;
+ CHECK_CHAR_TABLE (char_table);
+ ct = XCHAR_TABLE (char_table);
+ if (NILP (range))
+ range = Qt;
+ decode_char_table_range (range, &rainj);
+ slarg.function = function;
+ slarg.retval = Qnil;
+ GCPRO2 (slarg.function, slarg.retval);
+ map_char_table (ct, &rainj, slow_map_char_table_fun, &slarg);
+ UNGCPRO;
+
+ return slarg.retval;
}
-DEFUN ("check-valid-char-table-value", Fcheck_valid_char_table_value, 2, 2, 0, /*
-Signal an error if VALUE is not a valid value for CHAR-TABLE-TYPE.
-*/
- (value, char_table_type))
-{
- enum char_table_type type = symbol_to_char_table_type (char_table_type);
+\f
+/************************************************************************/
+/* Character Attributes */
+/************************************************************************/
- check_valid_char_table_value (value, type, ERROR_ME);
- return Qnil;
-}
+#ifdef UTF2000
-/* Assign VAL to all characters in RANGE in char table CT. */
+Lisp_Object Vchar_attribute_hash_table;
-void
-put_char_table (Lisp_Char_Table *ct, struct chartab_range *range,
- Lisp_Object val)
-{
- switch (range->type)
- {
- case CHARTAB_RANGE_ALL:
- fill_char_table (ct, val);
- return; /* avoid the duplicate call to update_syntax_table() below,
- since fill_char_table() also did that. */
-
-#ifdef MULE
- case CHARTAB_RANGE_CHARSET:
- if (EQ (range->charset, Vcharset_ascii))
- {
- int i;
- for (i = 0; i < 128; i++)
- ct->ascii[i] = val;
- }
- else if (EQ (range->charset, Vcharset_control_1))
- {
- int i;
- for (i = 128; i < 160; i++)
- ct->ascii[i] = val;
- }
- else
- {
- int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE;
- ct->level1[lb] = val;
- }
- break;
+/* We store the char-attributes in hash tables with the names as the
+ key and the actual char-id-table object as the value. Occasionally
+ we need to use them in a list format. These routines provide us
+ with that. */
+struct char_attribute_list_closure
+{
+ Lisp_Object *char_attribute_list;
+};
- case CHARTAB_RANGE_ROW:
- {
- Lisp_Char_Table_Entry *cte;
- int lb = XCHARSET_LEADING_BYTE (range->charset) - MIN_LEADING_BYTE;
- /* make sure that there is a separate entry for the row. */
- if (!CHAR_TABLE_ENTRYP (ct->level1[lb]))
- ct->level1[lb] = make_char_table_entry (ct->level1[lb]);
- cte = XCHAR_TABLE_ENTRY (ct->level1[lb]);
- cte->level2[range->row - 32] = val;
- }
- break;
-#endif /* MULE */
+static int
+add_char_attribute_to_list_mapper (Lisp_Object key, Lisp_Object value,
+ void *char_attribute_list_closure)
+{
+ /* This function can GC */
+ struct char_attribute_list_closure *calcl
+ = (struct char_attribute_list_closure*) char_attribute_list_closure;
+ Lisp_Object *char_attribute_list = calcl->char_attribute_list;
- case CHARTAB_RANGE_CHAR:
-#ifdef MULE
- {
- Lisp_Object charset;
- int byte1, byte2;
+ *char_attribute_list = Fcons (key, *char_attribute_list);
+ return 0;
+}
- BREAKUP_CHAR (range->ch, charset, byte1, byte2);
- if (EQ (charset, Vcharset_ascii))
- ct->ascii[byte1] = val;
- else if (EQ (charset, Vcharset_control_1))
- ct->ascii[byte1 + 128] = val;
- else
- {
- Lisp_Char_Table_Entry *cte;
- int lb = XCHARSET_LEADING_BYTE (charset) - MIN_LEADING_BYTE;
- /* make sure that there is a separate entry for the row. */
- if (!CHAR_TABLE_ENTRYP (ct->level1[lb]))
- ct->level1[lb] = make_char_table_entry (ct->level1[lb]);
- cte = XCHAR_TABLE_ENTRY (ct->level1[lb]);
- /* now CTE is a char table entry for the charset;
- each entry is for a single row (or character of
- a one-octet charset). */
- if (XCHARSET_DIMENSION (charset) == 1)
- cte->level2[byte1 - 32] = val;
- else
- {
- /* assigning to one character in a two-octet charset. */
- /* make sure that the charset row contains a separate
- entry for each character. */
- if (!CHAR_TABLE_ENTRYP (cte->level2[byte1 - 32]))
- cte->level2[byte1 - 32] =
- make_char_table_entry (cte->level2[byte1 - 32]);
- cte = XCHAR_TABLE_ENTRY (cte->level2[byte1 - 32]);
- cte->level2[byte2 - 32] = val;
- }
- }
- }
-#else /* not MULE */
- ct->ascii[(unsigned char) (range->ch)] = val;
- break;
-#endif /* not MULE */
- }
+DEFUN ("char-attribute-list", Fchar_attribute_list, 0, 0, 0, /*
+Return the list of all existing character attributes except coded-charsets.
+*/
+ ())
+{
+ Lisp_Object char_attribute_list = Qnil;
+ struct gcpro gcpro1;
+ struct char_attribute_list_closure char_attribute_list_closure;
+
+ GCPRO1 (char_attribute_list);
+ char_attribute_list_closure.char_attribute_list = &char_attribute_list;
+ elisp_maphash (add_char_attribute_to_list_mapper,
+ Vchar_attribute_hash_table,
+ &char_attribute_list_closure);
+ UNGCPRO;
+ return char_attribute_list;
+}
- if (ct->type == CHAR_TABLE_TYPE_SYNTAX)
- update_syntax_table (ct);
+DEFUN ("find-char-attribute-table", Ffind_char_attribute_table, 1, 1, 0, /*
+Return char-id-table corresponding to ATTRIBUTE.
+*/
+ (attribute))
+{
+ return Fgethash (attribute, Vchar_attribute_hash_table, Qnil);
}
-DEFUN ("put-char-table", Fput_char_table, 3, 3, 0, /*
-Set the value for chars in RANGE to be VALUE in CHAR-TABLE.
-RANGE specifies one or more characters to be affected and should be
-one of the following:
+/* We store the char-id-tables in hash tables with the attributes as
+ the key and the actual char-id-table object as the value. Each
+ char-id-table stores values of an attribute corresponding with
+ characters. Occasionally we need to get attributes of a character
+ in a association-list format. These routines provide us with
+ that. */
+struct char_attribute_alist_closure
+{
+ Emchar char_id;
+ Lisp_Object *char_attribute_alist;
+};
--- t (all characters are affected)
--- A charset (only allowed when Mule support is present)
--- A vector of two elements: a two-octet charset and a row number
- (only allowed when Mule support is present)
--- A single character
+static int
+add_char_attribute_alist_mapper (Lisp_Object key, Lisp_Object value,
+ void *char_attribute_alist_closure)
+{
+ /* This function can GC */
+ struct char_attribute_alist_closure *caacl =
+ (struct char_attribute_alist_closure*) char_attribute_alist_closure;
+ Lisp_Object ret = get_char_id_table (caacl->char_id, value);
+ if (!UNBOUNDP (ret))
+ {
+ Lisp_Object *char_attribute_alist = caacl->char_attribute_alist;
+ *char_attribute_alist
+ = Fcons (Fcons (key, ret), *char_attribute_alist);
+ }
+ return 0;
+}
-VALUE must be a value appropriate for the type of CHAR-TABLE.
-See `valid-char-table-type-p'.
+DEFUN ("char-attribute-alist", Fchar_attribute_alist, 1, 1, 0, /*
+Return the alist of attributes of CHARACTER.
*/
- (range, value, char_table))
+ (character))
{
- Lisp_Char_Table *ct;
- struct chartab_range rainj;
+ Lisp_Object alist = Qnil;
+ int i;
- CHECK_CHAR_TABLE (char_table);
- ct = XCHAR_TABLE (char_table);
- check_valid_char_table_value (value, ct->type, ERROR_ME);
- decode_char_table_range (range, &rainj);
- value = canonicalize_char_table_value (value, ct->type);
- put_char_table (ct, &rainj, value);
- return Qnil;
-}
+ CHECK_CHAR (character);
+ {
+ struct gcpro gcpro1;
+ struct char_attribute_alist_closure char_attribute_alist_closure;
+
+ GCPRO1 (alist);
+ char_attribute_alist_closure.char_id = XCHAR (character);
+ char_attribute_alist_closure.char_attribute_alist = &alist;
+ elisp_maphash (add_char_attribute_alist_mapper,
+ Vchar_attribute_hash_table,
+ &char_attribute_alist_closure);
+ UNGCPRO;
+ }
-/* Map FN over the ASCII chars in CT. */
+ for (i = 0; i < countof (chlook->charset_by_leading_byte); i++)
+ {
+ Lisp_Object ccs = chlook->charset_by_leading_byte[i];
-static int
-map_over_charset_ascii (Lisp_Char_Table *ct,
- int (*fn) (struct chartab_range *range,
- Lisp_Object val, void *arg),
- void *arg)
+ if (!NILP (ccs))
+ {
+ Lisp_Object encoding_table = XCHARSET_ENCODING_TABLE (ccs);
+ Lisp_Object cpos;
+
+ if ( CHAR_ID_TABLE_P (encoding_table)
+ && INTP (cpos = get_char_id_table (XCHAR (character),
+ encoding_table)) )
+ {
+ alist = Fcons (Fcons (ccs, cpos), alist);
+ }
+ }
+ }
+ return alist;
+}
+
+DEFUN ("get-char-attribute", Fget_char_attribute, 2, 3, 0, /*
+Return the value of CHARACTER's ATTRIBUTE.
+Return DEFAULT-VALUE if the value is not exist.
+*/
+ (character, attribute, default_value))
{
- struct chartab_range rainj;
- int i, retval;
- int start = 0;
-#ifdef MULE
- int stop = 128;
-#else
- int stop = 256;
-#endif
+ Lisp_Object ccs;
- rainj.type = CHARTAB_RANGE_CHAR;
+ CHECK_CHAR (character);
+ if (!NILP (ccs = Ffind_charset (attribute)))
+ {
+ Lisp_Object encoding_table = XCHARSET_ENCODING_TABLE (ccs);
- for (i = start, retval = 0; i < stop && retval == 0; i++)
+ if (CHAR_ID_TABLE_P (encoding_table))
+ return get_char_id_table (XCHAR (character), encoding_table);
+ }
+ else
{
- rainj.ch = (Emchar) i;
- retval = (fn) (&rainj, ct->ascii[i], arg);
+ Lisp_Object table = Fgethash (attribute,
+ Vchar_attribute_hash_table,
+ Qunbound);
+ if (!UNBOUNDP (table))
+ {
+ Lisp_Object ret = get_char_id_table (XCHAR (character), table);
+ if (!UNBOUNDP (ret))
+ return ret;
+ }
}
-
- return retval;
+ return default_value;
}
-#ifdef MULE
-
-/* Map FN over the Control-1 chars in CT. */
-
-static int
-map_over_charset_control_1 (Lisp_Char_Table *ct,
- int (*fn) (struct chartab_range *range,
- Lisp_Object val, void *arg),
- void *arg)
+DEFUN ("put-char-attribute", Fput_char_attribute, 3, 3, 0, /*
+Store CHARACTER's ATTRIBUTE with VALUE.
+*/
+ (character, attribute, value))
{
- struct chartab_range rainj;
- int i, retval;
- int start = 128;
- int stop = start + 32;
-
- rainj.type = CHARTAB_RANGE_CHAR;
+ Lisp_Object ccs;
- for (i = start, retval = 0; i < stop && retval == 0; i++)
+ CHECK_CHAR (character);
+ ccs = Ffind_charset (attribute);
+ if (!NILP (ccs))
{
- rainj.ch = (Emchar) (i);
- retval = (fn) (&rainj, ct->ascii[i], arg);
+ return put_char_ccs_code_point (character, ccs, value);
}
+ else if (EQ (attribute, Q_decomposition))
+ {
+ Lisp_Object seq;
- return retval;
-}
+ if (!CONSP (value))
+ signal_simple_error ("Invalid value for ->decomposition",
+ value);
-/* Map FN over the row ROW of two-byte charset CHARSET.
- There must be a separate value for that row in the char table.
- CTE specifies the char table entry for CHARSET. */
+ if (CONSP (Fcdr (value)))
+ {
+ Lisp_Object rest = value;
+ Lisp_Object table = Vcharacter_composition_table;
+ size_t len;
+ int i = 0;
-static int
-map_over_charset_row (Lisp_Char_Table_Entry *cte,
- Lisp_Object charset, int row,
- int (*fn) (struct chartab_range *range,
- Lisp_Object val, void *arg),
- void *arg)
-{
- Lisp_Object val = cte->level2[row - 32];
+ GET_EXTERNAL_LIST_LENGTH (rest, len);
+ seq = make_vector (len, Qnil);
- if (!CHAR_TABLE_ENTRYP (val))
- {
- struct chartab_range rainj;
+ while (CONSP (rest))
+ {
+ Lisp_Object v = Fcar (rest);
+ Lisp_Object ntable;
+ Emchar c
+ = to_char_id (v, "Invalid value for ->decomposition", value);
- rainj.type = CHARTAB_RANGE_ROW;
- rainj.charset = charset;
- rainj.row = row;
- return (fn) (&rainj, val, arg);
+ if (c < 0)
+ XVECTOR_DATA(seq)[i++] = v;
+ else
+ XVECTOR_DATA(seq)[i++] = make_char (c);
+ rest = Fcdr (rest);
+ if (!CONSP (rest))
+ {
+ put_char_id_table (c, character, table);
+ break;
+ }
+ else
+ {
+ ntable = get_char_id_table (c, table);
+ if (!CHAR_ID_TABLE_P (ntable))
+ {
+ ntable = make_char_id_table (Qnil);
+ put_char_id_table (c, ntable, table);
+ }
+ table = ntable;
+ }
+ }
+ }
+ else
+ {
+ Lisp_Object v = Fcar (value);
+
+ if (INTP (v))
+ {
+ Emchar c = XINT (v);
+ Lisp_Object ret
+ = get_char_id_table (c, Vcharacter_variant_table);
+
+ if (NILP (Fmemq (v, ret)))
+ {
+ put_char_id_table (c, Fcons (character, ret),
+ Vcharacter_variant_table);
+ }
+ }
+ seq = make_vector (1, v);
+ }
+ value = seq;
}
- else
+ else if (EQ (attribute, Qto_ucs) || EQ (attribute, Q_ucs))
{
- struct chartab_range rainj;
- int i, retval;
- int charset94_p = (XCHARSET_CHARS (charset) == 94);
- int start = charset94_p ? 33 : 32;
- int stop = charset94_p ? 127 : 128;
+ Lisp_Object ret;
+ Emchar c;
- cte = XCHAR_TABLE_ENTRY (val);
+ if (!INTP (value))
+ signal_simple_error ("Invalid value for ->ucs", value);
- rainj.type = CHARTAB_RANGE_CHAR;
+ c = XINT (value);
- for (i = start, retval = 0; i < stop && retval == 0; i++)
+ ret = get_char_id_table (c, Vcharacter_variant_table);
+ if (NILP (Fmemq (character, ret)))
{
- rainj.ch = MAKE_CHAR (charset, row, i);
- retval = (fn) (&rainj, cte->level2[i - 32], arg);
+ put_char_id_table (c, Fcons (character, ret),
+ Vcharacter_variant_table);
}
- return retval;
+#if 0
+ if (EQ (attribute, Q_ucs))
+ attribute = Qto_ucs;
+#endif
}
-}
-
+ {
+ Lisp_Object table = Fgethash (attribute,
+ Vchar_attribute_hash_table,
+ Qnil);
-static int
-map_over_other_charset (Lisp_Char_Table *ct, Charset_ID lb,
- int (*fn) (struct chartab_range *range,
- Lisp_Object val, void *arg),
- void *arg)
+ if (NILP (table))
+ {
+ table = make_char_id_table (Qunbound);
+ Fputhash (attribute, table, Vchar_attribute_hash_table);
+ }
+ put_char_id_table (XCHAR (character), value, table);
+ return value;
+ }
+}
+
+DEFUN ("remove-char-attribute", Fremove_char_attribute, 2, 2, 0, /*
+Remove CHARACTER's ATTRIBUTE.
+*/
+ (character, attribute))
{
- Lisp_Object val = ct->level1[lb - MIN_LEADING_BYTE];
- Lisp_Object charset = CHARSET_BY_LEADING_BYTE (lb);
-
- if (!CHARSETP (charset)
- || lb == LEADING_BYTE_ASCII
- || lb == LEADING_BYTE_CONTROL_1)
- return 0;
+ Lisp_Object ccs;
- if (!CHAR_TABLE_ENTRYP (val))
+ CHECK_CHAR (character);
+ ccs = Ffind_charset (attribute);
+ if (!NILP (ccs))
{
- struct chartab_range rainj;
-
- rainj.type = CHARTAB_RANGE_CHARSET;
- rainj.charset = charset;
- return (fn) (&rainj, val, arg);
+ return remove_char_ccs (character, ccs);
+ }
+ else
+ {
+ Lisp_Object table = Fgethash (attribute,
+ Vchar_attribute_hash_table,
+ Qunbound);
+ if (!UNBOUNDP (table))
+ {
+ put_char_id_table (XCHAR (character), Qunbound, table);
+ return Qt;
+ }
}
+ return Qnil;
+}
- {
- Lisp_Char_Table_Entry *cte = XCHAR_TABLE_ENTRY (val);
- int charset94_p = (XCHARSET_CHARS (charset) == 94);
- int start = charset94_p ? 33 : 32;
- int stop = charset94_p ? 127 : 128;
- int i, retval;
+DEFUN ("map-char-attribute", Fmap_char_attribute, 2, 2, 0, /*
+Map FUNCTION over entries in ATTRIBUTE, calling it with two args,
+each key and value in the table.
+*/
+ (function, attribute))
+{
+ Lisp_Object ccs;
+ Lisp_Char_ID_Table *ct;
+ struct slow_map_char_table_arg slarg;
+ struct gcpro gcpro1, gcpro2;
- if (XCHARSET_DIMENSION (charset) == 1)
- {
- struct chartab_range rainj;
- rainj.type = CHARTAB_RANGE_CHAR;
+ if (!NILP (ccs = Ffind_charset (attribute)))
+ {
+ Lisp_Object encoding_table = XCHARSET_ENCODING_TABLE (ccs);
- for (i = start, retval = 0; i < stop && retval == 0; i++)
- {
- rainj.ch = MAKE_CHAR (charset, i, 0);
- retval = (fn) (&rainj, cte->level2[i - 32], arg);
- }
- }
- else
- {
- for (i = start, retval = 0; i < stop && retval == 0; i++)
- retval = map_over_charset_row (cte, charset, i, fn, arg);
- }
+ if (CHAR_ID_TABLE_P (encoding_table))
+ ct = XCHAR_ID_TABLE (encoding_table);
+ else
+ return Qnil;
+ }
+ else
+ {
+ Lisp_Object table = Fgethash (attribute,
+ Vchar_attribute_hash_table,
+ Qunbound);
+ if (CHAR_ID_TABLE_P (table))
+ ct = XCHAR_ID_TABLE (table);
+ else
+ return Qnil;
+ }
+ slarg.function = function;
+ slarg.retval = Qnil;
+ GCPRO2 (slarg.function, slarg.retval);
+ map_char_id_table (ct, slow_map_char_table_fun, &slarg);
+ UNGCPRO;
- return retval;
- }
+ return slarg.retval;
}
-#endif /* MULE */
-
-/* Map FN (with client data ARG) over range RANGE in char table CT.
- Mapping stops the first time FN returns non-zero, and that value
- becomes the return value of map_char_table(). */
+EXFUN (Fmake_char, 3);
+EXFUN (Fdecode_char, 2);
-int
-map_char_table (Lisp_Char_Table *ct,
- struct chartab_range *range,
- int (*fn) (struct chartab_range *range,
- Lisp_Object val, void *arg),
- void *arg)
+DEFUN ("define-char", Fdefine_char, 1, 1, 0, /*
+Store character's ATTRIBUTES.
+*/
+ (attributes))
{
- switch (range->type)
- {
- case CHARTAB_RANGE_ALL:
- {
- int retval;
+ Lisp_Object rest = attributes;
+ Lisp_Object code = Fcdr (Fassq (Qucs, attributes));
+ Lisp_Object character;
- retval = map_over_charset_ascii (ct, fn, arg);
- if (retval)
- return retval;
-#ifdef MULE
- retval = map_over_charset_control_1 (ct, fn, arg);
- if (retval)
- return retval;
+ if (NILP (code))
+ {
+ while (CONSP (rest))
{
- Charset_ID i;
- Charset_ID start = MIN_LEADING_BYTE;
- Charset_ID stop = start + NUM_LEADING_BYTES;
+ Lisp_Object cell = Fcar (rest);
+ Lisp_Object ccs;
- for (i = start, retval = 0; i < stop && retval == 0; i++)
+ if (!LISTP (cell))
+ signal_simple_error ("Invalid argument", attributes);
+ if (!NILP (ccs = Ffind_charset (Fcar (cell)))
+ && ((XCHARSET_FINAL (ccs) != 0) ||
+ (XCHARSET_UCS_MAX (ccs) > 0)) )
{
- retval = map_over_other_charset (ct, i, fn, arg);
+ cell = Fcdr (cell);
+ if (CONSP (cell))
+ character = Fmake_char (ccs, Fcar (cell), Fcar (Fcdr (cell)));
+ else
+ character = Fdecode_char (ccs, cell);
+ if (!NILP (character))
+ goto setup_attributes;
}
+ rest = Fcdr (rest);
}
-#endif /* MULE */
- return retval;
- }
-
-#ifdef MULE
- case CHARTAB_RANGE_CHARSET:
- return map_over_other_charset (ct,
- XCHARSET_LEADING_BYTE (range->charset),
- fn, arg);
-
- case CHARTAB_RANGE_ROW:
- {
- Lisp_Object val = ct->level1[XCHARSET_LEADING_BYTE (range->charset)
- - MIN_LEADING_BYTE];
- if (!CHAR_TABLE_ENTRYP (val))
- {
- struct chartab_range rainj;
-
- rainj.type = CHARTAB_RANGE_ROW;
- rainj.charset = range->charset;
- rainj.row = range->row;
- return (fn) (&rainj, val, arg);
- }
- else
- return map_over_charset_row (XCHAR_TABLE_ENTRY (val),
- range->charset, range->row,
- fn, arg);
- }
-#endif /* MULE */
-
- case CHARTAB_RANGE_CHAR:
- {
- Emchar ch = range->ch;
- Lisp_Object val = CHAR_TABLE_VALUE_UNSAFE (ct, ch);
- struct chartab_range rainj;
-
- rainj.type = CHARTAB_RANGE_CHAR;
- rainj.ch = ch;
- return (fn) (&rainj, val, arg);
- }
-
- default:
- abort ();
+ if ( (!NILP (code = Fcdr (Fassq (Qto_ucs, attributes)))) ||
+ (!NILP (code = Fcdr (Fassq (Q_ucs, attributes)))) )
+
+ {
+ if (!INTP (code))
+ signal_simple_error ("Invalid argument", attributes);
+ else
+ character = make_char (XINT (code) + 0x100000);
+ goto setup_attributes;
+ }
+ return Qnil;
}
+ else if (!INTP (code))
+ signal_simple_error ("Invalid argument", attributes);
+ else
+ character = make_char (XINT (code));
- return 0;
-}
-
-struct slow_map_char_table_arg
-{
- Lisp_Object function;
- Lisp_Object retval;
-};
-
-static int
-slow_map_char_table_fun (struct chartab_range *range,
- Lisp_Object val, void *arg)
-{
- Lisp_Object ranjarg = Qnil;
- struct slow_map_char_table_arg *closure =
- (struct slow_map_char_table_arg *) arg;
-
- switch (range->type)
+ setup_attributes:
+ rest = attributes;
+ while (CONSP (rest))
{
- case CHARTAB_RANGE_ALL:
- ranjarg = Qt;
- break;
+ Lisp_Object cell = Fcar (rest);
-#ifdef MULE
- case CHARTAB_RANGE_CHARSET:
- ranjarg = XCHARSET_NAME (range->charset);
- break;
+ if (!LISTP (cell))
+ signal_simple_error ("Invalid argument", attributes);
- case CHARTAB_RANGE_ROW:
- ranjarg = vector2 (XCHARSET_NAME (range->charset),
- make_int (range->row));
- break;
-#endif /* MULE */
- case CHARTAB_RANGE_CHAR:
- ranjarg = make_char (range->ch);
- break;
- default:
- abort ();
+ Fput_char_attribute (character, Fcar (cell), Fcdr (cell));
+ rest = Fcdr (rest);
}
-
- closure->retval = call2 (closure->function, ranjarg, val);
- return !NILP (closure->retval);
+ return character;
}
-DEFUN ("map-char-table", Fmap_char_table, 2, 3, 0, /*
-Map FUNCTION over entries in CHAR-TABLE, calling it with two args,
-each key and value in the table.
-
-RANGE specifies a subrange to map over and is in the same format as
-the RANGE argument to `put-range-table'. If omitted or t, it defaults to
-the entire table.
+DEFUN ("find-char", Ffind_char, 1, 1, 0, /*
+Retrieve the character of the given ATTRIBUTES.
*/
- (function, char_table, range))
+ (attributes))
{
- Lisp_Char_Table *ct;
- struct slow_map_char_table_arg slarg;
- struct gcpro gcpro1, gcpro2;
- struct chartab_range rainj;
+ Lisp_Object rest = attributes;
+ Lisp_Object code;
- CHECK_CHAR_TABLE (char_table);
- ct = XCHAR_TABLE (char_table);
- if (NILP (range))
- range = Qt;
- decode_char_table_range (range, &rainj);
- slarg.function = function;
- slarg.retval = Qnil;
- GCPRO2 (slarg.function, slarg.retval);
- map_char_table (ct, &rainj, slow_map_char_table_fun, &slarg);
- UNGCPRO;
+ while (CONSP (rest))
+ {
+ Lisp_Object cell = Fcar (rest);
+ Lisp_Object ccs;
- return slarg.retval;
+ if (!LISTP (cell))
+ signal_simple_error ("Invalid argument", attributes);
+ if (!NILP (ccs = Ffind_charset (Fcar (cell))))
+ {
+ cell = Fcdr (cell);
+ if (CONSP (cell))
+ return Fmake_char (ccs, Fcar (cell), Fcar (Fcdr (cell)));
+ else
+ return Fdecode_char (ccs, cell);
+ }
+ rest = Fcdr (rest);
+ }
+ if ( (!NILP (code = Fcdr (Fassq (Qto_ucs, attributes)))) ||
+ (!NILP (code = Fcdr (Fassq (Q_ucs, attributes)))) )
+ {
+ if (!INTP (code))
+ signal_simple_error ("Invalid argument", attributes);
+ else
+ return make_char (XINT (code) + 0x100000);
+ }
+ return Qnil;
}
+#endif
\f
/************************************************************************/
projects / chise / xemacs-chise.git- / commitdiff