(struct sound): Add members `data' and `header_size'.
(enum sound_attr): Add SOUND_DATA.
(current_sound, current_sound_device): Variables renamed from
sound_file and sound_device.
(parse_sound): Parse :data.
(parse_sound): Handle sound data in strings.
(find_sound_type): Function renamed from find_sound_file_type.
(wav_init, au_init): Fail if sound's header_size is smaller than
needed header size.
(wav_play, au_play): Play sounds from string data.
strings.
(mark_buffer): Remove code in #if 0.
(gc_sweep): Ditto.
(UNMARK_BALANCE_INTERVALS): Give the macro statement form.
(strings_consed): New variable.
(allocate_string): Set it.
(syms_of_alloc): Add DEFVAR_INT for strings_consed.
(Fmemory_use_counts): Return strings_consed. Use Flist.
General cleanup in comments etc. Remove conditional
compilation for `standalone'.
(MARK_STRING, UNMARK_STRING, STRING_MARKED_P):
(GC_STRING_BYTES, GC_STRING_CHARS): New macros.
(DONT_COPY_FLAG): Removed.
(SBLOCK_SIZE, LARGE_STRING_BYTES): New macros.
(struct sdata, struct sblock): New
(struct string_block): Rewritten.
(STRINGS_IN_STRING_BLOCK): New macro.
(oldest_sblock, current_sblock, total_strings, total_free_strings)
(large_sblocks, string_blocks, string_free_list): New variables.
(NEXT_FREE_LISP_STRING, SDATA_OF_STRING, SDATA_SIZE): New macros.
(init_strings): Rewritten.
(allocate_string, allocate_string_data, compact_small_strings)
(free_large_strings, sweep_strings): New functions.
(STRING_BLOCK_SIZE, STRING_BLOCK_OUTSIZE)
(struct string_block_head, current_string_block)
(first_string_block, large_string_blocks, STRING_FULLSIZE)
(STRING_PAD): Removed.
(make_uninit_multibyte_string, make_pure_string): Rewritten.
(Fgarbage_collect): Don't set mark bit in large strings.
(mark_object): Mark strings differently. Mark symbol names
differently.
(survives_gc_p): Test marked strings differently.
(gc_sweep): Sweep strings differently, unmark strings in
symbol names.
(compact_strings): Removed.
(msdos_stdcolor_idx): Use global variables unspecified_fg and
unspecified_bg.
(msdos_stdcolor_name): Return strings for unspecified fore- and
back-ground colors.
color indices when accessing raster pixels.
(gif_image_p, png_image_p, jpeg_image_p, tiff_image_p): Allow only
one of :file or :data.
(enum pbm_keyword_index): Add PBM_DATA.
(pbm_format): Add :data.
(pbm_image_p): Allow either :file or :data.
(pbm_read_file): New function.
(pbm_scan_number): Rewritten to read from string.
(pbm_load): Support :data.
(dos_set_window_size) [__DJGPP__ > 1]: If the frame
dimensions changed, invalidate the mouse highlight info.
(disable_mouse_highlight, help_echo, previous_help_echo): New
variables.
(IT_set_mouse_pointer, show_mouse_face, clear_mouse_face)
(fast_find_position, IT_note_mode_line_highlight)
(IT_note_mouse_highlight): New functions.
(IT_update_begin): If the redisplay affects the window where the
mouse highlight is, clear the highlight. If the frame where the
highlight was displayed was killed, invalidate the highlight
info.
(IT_update_end): Reset the highlight flag. Reset the mouse
highlight-defer flag.
(IT_frame_up_to_date): New function, if mouse highlight was
deferred due to GC, do it now.
(internal_terminal_init): Initialize mouse-highlight related
members of the_only_x_display. Assign IT_frame_up_to_date to
frame_up_to_date_hook.
(dos_rawgetc): If the mouse moved, update mouse highlight. If
help_echo changed value, generate a HELP_EVENT event.
(syms_of_msdos): Staticpro help_echo and previous_help_echo.
