/* Fundamental definitions for GNU Emacs Lisp interpreter.
- Copyright (C) 1985,86,87,93,94,95,97,98,1999 Free Software Foundation, Inc.
+ Copyright (C) 1985,86,87,93,94,95,97,98,1999,2000
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
EMACS_INT size;
EMACS_INT size_byte;
DECLARE_INTERVALS /* `data' field must be last. */
- unsigned char data[1];
+ unsigned char *data;
};
/* If a struct is made to look like a vector, this macro returns the length
\f
/* The glyph datatype, used to represent characters on the display. */
-/* The low 19 bits (CHARACTERBITS) are the character code, and the
- bits above them except for the topmost two bits are the numeric
- face ID. If FID is the face ID of a glyph on a frame F, then
- F->display.x->faces[FID] contains the description of that face.
- This is an int instead of a short, so we can support a good bunch
- of face ID's (i.e. 2^(32 - 19 - 2) = 2048 ID's) ; given that we
+/* Glyph code to use as an index to the glyph table. If it is out of
+ range for the glyph table, or the corresonding element in the table
+ is nil, the low 8 bits are the single byte character code, and the
+ bits above are the numeric face ID. If FID is the face ID of a
+ glyph on a frame F, then F->display.x->faces[FID] contains the
+ description of that face. This is an int instead of a short, so we
+ can support a good bunch of face ID's (2^(31 - 8)); given that we
have no mechanism for tossing unused frame face ID's yet, we'll
- probably run out of 255 pretty quickly. */
-#define GLYPH unsigned int
-
-/* Mask bit for a glyph of a character which should be written from
- right to left. */
-#define GLYPH_MASK_REV_DIR 0x80000000
-/* Mask bit for a padding glyph of a multi-column character. */
-#define GLYPH_MASK_PADDING 0x40000000
+ probably run out of 255 pretty quickly.
+ This is always -1 for a multibyte character. */
+#define GLYPH int
+
/* Mask bits for face. */
-#define GLYPH_MASK_FACE 0x3FF80000
-/* Mask bits for character code. */
-#define GLYPH_MASK_CHAR 0x0007FFFF /* The lowest 19 bits */
+#define GLYPH_MASK_FACE 0x7FFFFF00
+ /* Mask bits for character code. */
+#define GLYPH_MASK_CHAR 0x000000FF /* The lowest 8 bits */
/* The FAST macros assume that we already know we're in an X window. */
-/* Given a character code and a face ID, return the appropriate glyph. */
-#define FAST_MAKE_GLYPH(char, face) ((char) | ((face) << CHARACTERBITS))
+/* Set a character code and a face ID in a glyph G. */
+#define FAST_MAKE_GLYPH(char, face) ((char) | ((face) << 8))
/* Return a glyph's character code. */
#define FAST_GLYPH_CHAR(glyph) ((glyph) & GLYPH_MASK_CHAR)
/* Return a glyph's face ID. */
-#define FAST_GLYPH_FACE(glyph) (((glyph) & GLYPH_MASK_FACE) >> CHARACTERBITS)
+#define FAST_GLYPH_FACE(glyph) (((glyph) & GLYPH_MASK_FACE) >> 8)
/* Slower versions that test the frame type first. */
#define MAKE_GLYPH(f, char, face) (FAST_MAKE_GLYPH (char, face))
If func is zero and symbol is nil, undoing this binding evaluates
the list of forms in old_value; this implements Lisp's unwind-protect
form.
- Otherwise, undoing this binding stores old_value as symbol's value; this
- undoes the bindings made by a let form or function call. */
+
+ Otherwise, the element is a variable binding.
+ If the symbol field is a symbol, it is an ordinary variable binding.
+ Otherwise, it should be a cons cell (SYMBOL . BUFFER)
+ which represents having bound BUFFER's local value.
+ or (SYMBOL . nil), which represents having bound the default value. */
+
struct specbinding
{
Lisp_Object symbol, old_value;
extern Lisp_Object wrong_type_argument P_ ((Lisp_Object, Lisp_Object));
extern void store_symval_forwarding P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object do_symval_forwarding P_ ((Lisp_Object));
-extern Lisp_Object set_internal P_ ((Lisp_Object, Lisp_Object, int));
+extern Lisp_Object set_internal P_ ((Lisp_Object, Lisp_Object, struct buffer *, int));
extern void syms_of_data P_ ((void));
extern void init_data P_ ((void));
extern void sweep_weak_hash_tables P_ ((void));
extern Lisp_Object Qstring_lessp;
extern Lisp_Object Vfeatures;
+extern Lisp_Object QCtest, QCweakness, Qequal;
unsigned sxhash P_ ((Lisp_Object, int));
Lisp_Object make_hash_table P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object));
Lisp_Object copy_hash_table P_ ((struct Lisp_Hash_Table *));
int hash_lookup P_ ((struct Lisp_Hash_Table *, Lisp_Object, unsigned *));
-void hash_put P_ ((struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object,
- unsigned));
+int hash_put P_ ((struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object,
+ unsigned));
void hash_remove P_ ((struct Lisp_Hash_Table *, Lisp_Object));
void hash_clear P_ ((struct Lisp_Hash_Table *));
void remove_hash_entry P_ ((struct Lisp_Hash_Table *, int));
extern void insert_before_markers_and_inherit P_ ((unsigned char *, int));
extern void insert_from_string_before_markers P_ ((Lisp_Object, int, int, int, int, int));
extern void del_range P_ ((int, int));
-extern void del_range_1 P_ ((int, int, int));
+extern Lisp_Object del_range_1 P_ ((int, int, int, int));
extern void del_range_byte P_ ((int, int, int));
extern void del_range_both P_ ((int, int, int, int, int));
-extern void del_range_2 P_ ((int, int, int, int));
+extern Lisp_Object del_range_2 P_ ((int, int, int, int, int));
extern void modify_region P_ ((struct buffer *, int, int));
extern void prepare_to_modify_buffer P_ ((int, int, int *));
extern void signal_before_change P_ ((int, int, int *));
extern void update_echo_area P_ ((void));
extern void truncate_echo_area P_ ((int));
extern void redisplay P_ ((void));
+extern int check_point_in_composition
+ P_ ((struct buffer *, int, struct buffer *, int));
extern void redisplay_preserve_echo_area P_ ((void));
extern void mark_window_display_accurate P_ ((Lisp_Object, int));
extern int invisible_p P_ ((Lisp_Object, Lisp_Object));
#endif
/* Defined in alloc.c */
+extern void allocate_string_data P_ ((struct Lisp_String *, int, int));
extern void uninterrupt_malloc P_ ((void));
extern void malloc_warning P_ ((char *));
extern void memory_full P_ ((void));
extern void init_editfns P_ ((void));
extern void syms_of_editfns P_ ((void));
EXFUN (Fcurrent_message, 0);
+extern Lisp_Object Vinhibit_field_text_motion;
/* defined in buffer.c */
extern void nsberror P_ ((Lisp_Object));
HCoop / bpt / emacs.git / blobdiff