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Re-fill permissions.

Revision: emacs@sv.gnu.org/emacs--devo--0--patch-1159

(font-swidth-table): Declare them by defconst.  Change the format
of elements.  Call internal-set-font-style-table after their
declaration.
(face-valid-attribute-values): Call font-family-list.  Get values
for width, weight, and slant from font-xxx-table.

hangul, and cjk-misc, move an entry with font-spec at the end.
(generate-fontset-menu): Exclue fontset-auto* from the list.

("Chinese-CNS", "Chinese-EUC-TW", "Chinese-GBK")
("Chinese-GB18030"): Set `iso639-language' property to `zh'.

a message about a font backend.

has no corresponding coding system.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.  Don't include
ccl.h.
(x_per_char_metric, x_encode_char): Deleted.
(x_set_cursor_gc, x_set_mouse_face_gc): Don't set GCFont.
(x_compute_glyph_string_overhangs): Adjusted for the change of
`struct face'
(x_draw_glyph_string_foreground)
(x_draw_composite_glyph_string_foreground): Likewise.
(x_draw_glyph_string): Likewise.  Use font->underline_position and
font->underline_thickness.
(x_new_font): Renamed from x_new_fontset2.
(x_new_fontset, x_get_font_info, x_list_fonts): Deleted.
(x_check_font): Call `check' method of a font driver.
(x_font_min_bounds, x_compute_min_glyph_bounds, x_load_font)
(x_query_font, x_get_font_repertory): Deleted.
(x_find_ccl_program): Renamed and moved to xfont.c.
(x_redisplay_interface): Adjusted for the change of `struct
redisplay_interface'.

callback function.
(xftfont_match): Adjusted for the fontmat change of font-entity.
(xftfont_open): Adjusted for the format change of font-entity and
font-object.  Adjusted for the change of struct font.  Return a
font-object.  Don't update dpyinfo->smallest_font_height and
dpyinfo->smallest_char_width.
(xftfont_close): Block input while calling XftFontClose.
(xftfont_prepare_face): Don't block input while calling
xftfont_get_colors.  Adjusted for the change of struct font.
(xftfont_shape): Return value of error case fixed.

(struct xfont_info): New structure.
(xfont_query_font): Deleted.
(xfont_find_ccl_program): Renamed from x_find_ccl_program and
moved from xterm.c.
(xfont_driver): Adjusted for the change of struct font_driver.
(compare_font_names): New function.
(xfont_list_pattern): Sort font names case insensitively.  Make
font_entity by calling font_make_entity.  Avoid auto-scaled fonts.
(xfont_list): Return a list, not vector.
(xfont_match): If the font doesn't have QCname property, generate
a name from the other font properties.
(xfont_open): Return a font-ojbect.  Adjusted for the change of
struct font.  Get underline_thickness and underline_position from
font property.  Don't update dpyinfo->smallest_font_height and
dpyinfo->smallest_char_width.
(xfont_close): Don't free struct font.
(xfont_prepare_face): Adjusted for the change of struct font.
(xfont_done_face): Deleted.
(xfont_has_char): Adjusted for the change of struct font.
(xfont_encode_char, xfont_draw): Likewise.
(xfont_check): New function.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.
(xic_create_xfontset): Original code deleted and renamed from
xic_create_xfontset2.  Use FRAME_FONT, not FRAME_FONT_OBJECT.
(x_make_gc): Don't set GCFont in GCs.
(Fx_create_frame) [USE_LUCID]: Set xlwmenu_default_font to a font
opened by "fixed".
(syms_of_xfns): Don't set get_font_info_func, load_font_func,
find_ccl_program_func, query_font_func, set_frame_fontset_func,
get_font_repertory_func.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.  Use
FONT_XXX_NAME_NUMERIC instead of face_numeric_xxx.
(QCfoundry, QCadstyle, QCregistry, QCspacing, QCsize, QCavgwidth)
(Qp): Extern them.
(clear_font_table, load_face_font, xlfd_lookup_field_contents):
Deleted.
(struct font_name): Deleted.
(xlfd_numeric_value, xlfd_symbolic_value): Deleted.
(compare_fonts_by_sort_order): New function.
(xlfd_numeric_slant, xlfd_symbolic_slant, xlfd_numeric_weight)
(xlfd_symbolic_weight, xlfd_numeric_swidth, xlfd_symbolic_swidth):
Deleted.
(Fx_family_fonts): Use font_list_entities, and sort fonts by
compare_fonts_by_sort_order.
(Fx_font_family_list): Call Ffont_family_list.
(face_numeric_value, face_numeric_weight, face_numeric_slant)
(face_numeric_swidth, face_symbolic_value, face_symbolic_weight)
(face_symbolic_slant, face_symbolic_swidth)
(split_font_name_into_vector, build_font_name_from_vector)
(xlfd_fixed_p, xlfd_point_size, pixel_point_size)
(font_rescale_ratio, split_font_name, build_font_name)
(free_font_names, sort_fonts, x_face_list_fonts)
(face_font_available_p, sorted_font_list, cmp_font_names)
(font_list_1, concat_font_list, font_list, remove_duplicates):
Deleted.
(Fx_list_fonts): Use Ffont_list.
(LFACE_AVGWIDTH): Deleted.
(check_lface_attrs): Don't check LFACE_AVGWIDTH.  Check LFACE_FONT
by FONTP.
(lface_fully_specified_p): Don't check LFACE_AVGWIDTH.
(set_lface_from_font_name): Delete it.
(set_lface_from_font): Renamed from
set_lface_from_font_and_fontset.  Caller changed.  Don't set
LFACE_AVGWIDTH.  Use FONT_XXX_FOR_FACE to get a symbol suitable
for face.
(merge_face_vectors): Copy font-spec if necessary.  Clear
properties of the font-spec if necessary.
(merge_face_ref): Clear properties of the font-spec if necessary.
(Finternal_set_lisp_face_attribute): Likewise.
(set_font_frame_param): Use font_load_for_lface to load a
font-object, and call Fmodify_frame_parameters with it.
(x_update_menu_appearance): Don't check LFACE_AVGWIDTH.  Get XLFD
font name by Ffont_xlfd_name.
(Finternal_lisp_face_attribute_values): Don't check QCweight,
QCslant, and QCwidth.
(Fface_font): Get a font name from font->props[FONT_NAME_INDEX].
(lface_same_font_attributes_p): Don't check LFACE_AVGWIDTH.
Compare fonts by EQ.
(lookup_non_ascii_face): Deleted.
(face_for_font): The 2nd argument changed.
(x_supports_face_attributes_p): Don't check LFACE_AVGWIDTH.  Check
atomic font properties by case insensitive.
(realize_non_ascii_face): Set face->overstrike correctly.
(realize_x_face): Likewise.  Check if LFACE_FONT is a font_object.
(dump_realized_face): Get font name from
font->props[FONT_NAME_INDEX].  Don't print font_info_id.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.
(handle_auto_composed_prop): Do nothing if it->f is not on a
window system.  Check how many following characters can be
displayed by the same font.
(calc_pixel_width_or_height): Type of the 4th arg is changed to
'struct font *'.
(get_char_face_and_encoding): Assign the whole encoding task to
the `encode-char' method of a font driver.
(fill_composite_glyph_string): Adjusted for the change of `struct
face' and `struct glyph_string'.
(fill_glyph_string): Likewise.
(get_per_char_metric): Arguments changed.
(x_get_glyph_overhangs): Adjusted for the change of `struct face'
and `struct glyph_string'.
(produce_stretch_glyph, calc_line_height_property)
(x_produce_glyphs): Likewise.

(print_object): Handle font-related objects.

(Fassoc_string): EXFUN it.

"character.h" and "font.h".

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.
(x_set_font): Call x_new_font, not x_new_fontset2.
(x_set_font_backend): Use FRAME_FONT macro to check if a font is
already set for the frame.

(ftxfont_open): Return a font-ojbect.  Adjusted for the change of
struct font.  Get underline_thickness and underline_position from
font property.  Don't update dpyinfo->smallest_font_height and
dpyinfo->smallest_char_width.
(ftxfont_close): Don't decrese FRAME_X_DISPLAY_INFO (f)->n_fonts.
(ftxfont_draw): Adjusted for the change of struct font.

a font-entity by font_make_entity.  Use font_intern_prop instead
of intern_downcase.  Use FONT_SET_STYLE to set a style-related
font property.  If a font is scalable, set avgwidth property to 0.
Set font-entity property by font_put_extra.
(ftfont_list_generic_family): Argument SPEC and REGISTRY removed.
(ffont_driver): Adjusted for the change of struct font_driver.
(ftfont_spec_pattern): New function.
(ftfont_list): Return a list, not vector.
(ftfont_match): Use ftfont_spec_pattern to get a pattern.
(ftfont_list_family): Don't downcase names.
(ftfont_free_entity): Deleted.
(ftfont_open): Return a font-ojbect.  Adjusted for the change of
struct font.  Get underline_thickness and underline_position from
font property.  Don't update dpyinfo->smallest_font_height and
dpyinfo->smallest_char_width.
(ftfont_close): Don't free `struct font'.
(ftfont_has_char): Adjusted for the format change of font-entity.
(ftfont_encode_char, ftfont_text_extents): Likewise.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.
(get_font_info_func, list_font_func, load_font_func)
(query_font_func, set_frame_fontset_func, find_ccl_program_func)
(get_font_repertory_func): Delete them.
(FONTSET_SPEC, FONT_DEF_NEW, FONT_DEF_SPEC, FONT_DEF_ENCODING)
(FONT_DEF_REPERTORY, RFONT_DEF_FACE, RFONT_DEF_SET_FACE)
(RFONT_DEF_FONT_DEF, RFONT_DEF_SPEC, RFONT_DEF_REPERTORY)
(RFONT_DEF_OBJECT, RFONT_DEF_SET_OBJECT, RFONT_DEF_SCORE)
(RFONT_DEF_SET_SCORE, RFONT_DEF_NEW): New macros.
(fontset_compare_rfontdef): New function.
(reorder_font_vector): Remove the argument CHARSET-ID.  Sort
ront-defs by qsort.  Adjusted for the change of font-group vector.
(load_font_get_repertory): Deleted.
(fontset_find_font): Use new macros to ref/set elements of
font-def and rfont-def.
(fontset_font): Fix the timing of remembering that no font for C.
(free_face_fontset): Do nothing if the face has no fontset.
(face_suitable_for_char_p): Use new macros to ref/set elements of
rfont-def.
(face_for_char): Likewise.  Call face_for_char with font_object.
(fs_load_font): Delete.  Delete #pragma surrounding it.
(fs_query_fontset): Use strcasecmp instead of strcmp.
(generate_ascii_font_name): Adjusted for the format change of
font-spec.
(Fset_fontset_font): Likewise.  Use new macros to set elements of
font-def.
(Fnew_fontset): Use font_unparse_xlfd to generate
FONTSET_ASCII (fontset).
(new_fontset_from_font_name): Deleted.
(fontset_from_font): Renamed from new_fontset_from_font.  Check if
a fontset is already created for the font.  FIx updating of
Vfontset_alias_alist.
(fontset_ascii_font): Deleted.
(Ffont_info): Adjusted for the format change of font-spec.
(Finternal_char_font): Likewise.
(Ffontset_info): Likewise.
(syms_of_fontset): Don't check load_font_func.

struct font.
(FONT_ENCODING_NOT_DECIDED): Moved to font.h.
(enum FONT_SPEC_INDEX): Delete it.
(font_info, list_fonts_func, load_font_func, query_font_func)
(set_frame_fontset_func, find_ccl_program_func)
(get_font_repertory_func, new_fontset_from_font_name): Delete
externs.
(fontset_from_font_name): Extern it.
(FS_LOAD_FONT, FONT_INFO_ID, FONT_INFO_FROM_ID)
(FONT_INFO_FROM_FACE): Deleted.
(face_for_font): Adjust prototype.

(enable_font_backend): Delete it.
(Qfont_spec, Qfont_entity, Qfont_object): New variables.
(CHECK_VALIDATE_FONT_SPEC): Delete it.
(PT_PER_INCH, POINT_TO_PIXEL, PIXEL_TO_POINT): Moved to font.h.
(null_string): Delete it.
(null_vector): Make it static.
(font_family_alist): Delete it.
(Qnormal): Extern it.
(QCextra, QClanguage): Delete it.
(QClang, QCavgwidth, QCfont_entity, QCfc_unknown_spec): New
variables.
(font_make_spec, font_make_entity, font_make_object)
(font_intern_prop): Renamed from intern_downcase.  Don't downcase
the string.  Callers changed.
(font_pixel_size): Adjusted for the format change of font-related
objects.
(prop_name_to_numeric, prop_numeric_to_name): Delete them.
(font_style_to_value, font_style_symbolic): New function.
(build_font_family_alist): Delete it.
(font_registry_charsets): Use Fassoc_string instead of
assq_no_quit.
(font_prop_validate_symbol): Don't return null_string.
(font_prop_validate_style): Adjusted for the change of
style-related values in a font vector.
(font_property_table): Delete entries for QClangauge and
QCantialias, add entries for QCavgwidth.
(get_font_prop_index): Delete the 2nd argument FROM.
(font_prop_validate): Arguments changed.
(font_put_extra): Adjusted for the change of font-related objects.
(font_expand_wildcards, font_parse_xlfd, font_unparse_xlfd)
(font_parse_fcname, font_unparse_fcname)
(font_prepare_composition): Likewise.
(font_parse_family_registry): Renamed from font_merge_old_spec.
(otf_open): Delete the 1st arg entity.
(font_otf_capability): Adjusted for the above change.
(font_score): New arg alternate_families.  Adjusted for the change
of font-related objects.
(font_sort_entites): New arg best_only.
(font_symbolic_weight, font_symbolic_slant, font_symbolic_width):
Delete them.
(font_match_p): Check alternate families.
(font_find_object): Delete it.
(font_check_object): New function.
(font_clear_cache): Adjusted for the change of font-related
objects.
(font_delete_unmatched): New arg.
(font_list_entities): Call font_driver->list with a spec that
doesn't specify style-related properties.
(font_matching_entity): Arguments changed.  Caller changed.
(font_open_entity): Adjusted for the change of font-related
objects.
(font_close_object, font_has_char, font_encode_char)
(font_get_name, font_get_spec): Likewise.
(font_spec_from_name, font_clear_prop, font_update_lface): New
functions.
(font_find_for_lface, font_open_for_lface, font_load_for_lface):
(font_prepare_for_face, font_done_for_face, font_open_by_name)
(font_at): Adjusted for the change of font-related objects.
(font_range): New function.
(Ffontp, Ffont_spec, Ffont_get, Ffont_put, Flist_fonts)
(Ffont_xlfd_name): Adjusted for the change of font-related
objects.
(Fcopy_font_spec, Fmerge_font_spec): New function.
(Ffont_family_list): Renamed from list-families.
(Finternal_set_font_style_table): Arguments changed.
(Ffont_fill_gstring, Ffont_shape_text, Fopen_font)
(Ffont_drive_otf, Fquery_font, Ffont_match_p): Adjusted for the
change of font-related objects.
(syms_of_font): Delete "ifdef USE_FONT_BACKEND".  DEFSYM new
symboles.

(enum font_property_index): New members FONT_DPI_INDEX,
FONT_SPACING_INDEX, FONT_AVGWIDTH_INDEX, FONT_NAME_INDEX,
FONT_FULLNAME_INDEX, FONT_FILE_INDEX, FONT_FORMAT_INDEX,
FONT_OBJECT_MAX.  Delete FONT_FRAME_INDEX.
(FONT_WEIGHT_NUMERIC, FONT_SLANT_NUMERIC, FONT_WIDTH_NUMERIC)
(FONT_WEIGHT_SYMBOLIC, FONT_SLANT_SYMBOLIC, FONT_WIDTH_SYMBOLIC)
(FONT_WEIGHT_FOR_FACE, FONT_SLANT_FOR_FACE, FONT_WIDTH_FOR_FACE)
(FONT_WEIGHT_NAME_NUMERIC, FONT_SLANT_NAME_NUMERIC)
(FONT_WIDTH_NAME_NUMERIC, FONT_SET_STYLE): New macros.
(struct font_spec, struct font_entity): New structs.
(FONT_ENCODING_NOT_DECIDED): Moved from fontset.h.
(struct font): Many members from old "struct font_info" moved to
here.  Members font and entity deleted.
(FONT_SPEC_P, FONT_ENTITY_P, FONT_OBJECT_P, FONTP): Modified for
the new font-related objects.
(CHECK_FONT_SPEC, CHECK_FONT_ENTITY, CHECK_FONT_OBJECT)
(CHECK_FONT_GET_OBJECT): Likewise.
(XFONT_SPEC, XFONT_ENTITY, XFONT_OBJECT, XSETFONT): New macros.
(PT_PER_INCH, POINT_TO_PIXEL, PIXEL_TO_POINT): Moved from font.h.
(struct font_driver): New members case_sensitive anc check.  Type
of the member list and open changed.
(enable_font_backend, font_symbolic_weight, font_symbolic_slant)
(font_symbolic_width, font_find_object, font_get_spec)
(font_set_lface_from_name): Delete extern.
(Fcopy_font_spec, Fmerge_font_spec, Ffont_family_list): New
EXFUNs.

(main): Don't set enable_font_backend.  Don't check the command
line argument "-disable-font-backend".

`struct font *'.
(struct glyph_string): New member underline_position and
underline_thickness.
(enum lface_attribute_index): Remove LFACE_AVGWIDTH_INDEX.
(struct face): Change type of `font' to `struct font *'.  Remove
members `font_name', `font_info_id'.
(per_char_metric, encode_char): Delete externs.
(calc_pixel_width_or_height): Adjust the prototype.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.

(Vcurrent_iso639_language): New variable.
(syms_of_charset): Declare it as a Lisp variable.
(char_charset): Don't check non preferred charsets.  As a last
resort, return charset_unicode.
(Fset_charset_priority): Update Vcharset_non_preferred_head.

(Vcurrent_iso639_language): Extern them.