(syms_of_syntax): Declare it as a Lisp variable.
(SYNTAX_WITH_MULTIBYTE_CHECK): New macro.
(scan_lists): If both sexpflag and multibyte_syntax_as_symbol are
nonzero, treat all multibyte characters as symbol.
(init_syntax_once): Give syntax `word' to all mutlbiyte
characters.
(Vecho_keystrokes) New variable.
(read_char, record_menu_key, read_key_sequence): Use it to allow use of
float value.
(syms_of_keyboard): Change Vecho_keystrokes declaration.
(gc_sweep): Don't unmark symbol names in pure space.
(toplevel): Include setjmp.h.
(PURE_POINTER_P): New define.
(enum mem_type) [GC_MARK_STACK]: New enumeration.
(Vdead) [GC_MARK_STACK]: New variable.
(lisp_malloc): Add parameter TYPE, call mem_insert if
GC_MARK_STACK is defined.
(allocate_buffer): New function.
(lisp_free) [GC_MARK_STACK]: Call mem_delete.
(free_float) [GC_MARK_STACK]: Set type to Vdead.
(free_cons) [GC_MARK_STACK]: Set car to Vdead.
(stack_base, mem_root, mem_z) [GC_MARK_STACK]: New variables.
(MEM_NIL) [GC_MARK_STACK]: New define.
(struct mem_node) [GC_MARK_STACK]: New structure.
(mem_init, mem_find, mem_insert, mem_delete, mem_insert_fixup)
(mem_delete_fixup, mem_rotate_left, mem_rotate_right)
(live_string_p, live_cons_p, live_symbol_p, live_float_p)
(live_misc_p, live_vector_p, live_buffer_p, mark_memory)
(mark_stack) [GC_MARK_STACK]: New functions.
(Fgarbage_collect) [GC_MARK_STACK]: Call mark_stack.
(clear_marks): Removed.
(gc_sweep): Set free conses' car, free floats' type, free
symbols' function to Vdead. Use lisp_free to free buffers.
(init_alloc_once): Initialize Vdead.
(survives_gc_p): Return non-zero for pure objects.
Add comments throughout the file.
of the relevant style and return -1 in case of a failure to find the
beginning of the comment.
(Fforward_comment): If back_comment fails, go back to the position just
after the comment-end.
(scan_lists): Add comment describing a very minor bug.
to Emacs' syntax. Also fix the comment about set/not-set meanings
since Emacs syntax is not the value 0 any more.
* search.c (compile_pattern_1): Remove RE_CHAR_CLASSES from the syntax
since it's now part of RE_SYNTAX_EMACS.
