on character terminals:
* dispextern.h (FACE_TTY_DEFAULT_FG_COLOR)
(FACE_TTY_DEFAULT_BG_COLOR): New macros.
* xfaces.c (Qunspecified_fg, Qunspecified_bg): New variables.
(syms_of_xfaces): Initialize and staticpro them.
(tty_defined_color): If the color name is unspecified-fg or
unspecified-bg, return FACE_TTY_DEFAULT_FG_COLOR and
FACE_TTY_DEFAULT_BG_COLOR, respectively, as the pixel value.
(tty_color_name): If the color pixel value is either
FACE_TTY_DEFAULT_FG_COLOR or FACE_TTY_DEFAULT_BG_COLOR, return
Qunspecified_fg or Qunspecified_bg, respectively.
(Finternal_set_lisp_face_attribute): Allow values Qunspecified_fg
and Qunspecified_bg for foreground and background colors.
(realize_default_face): If the foreground and background colors
are not specified, default to Qunspecified_fg and Qunspecified_bg.
(realize_tty_face): By default, set the face colors to
FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR.
[MSDOS]: Handle FACE_TTY_DEFAULT_FG_COLOR and
FACE_TTY_DEFAULT_BG_COLOR when face colors are not defined.
Reverse the colors if the default colors were reversed.
* dispnew.c (init_display): Initialize the frame pixels of the
initial frame to FACE_TTY_DEFAULT_FG_COLOR and
FACE_TTY_DEFAULT_BG_COLOR.
* term.c (turn_on_face): If the default fore- and background
colors are reversed, enter inverse video mode. Don't send color
escape sequences for unspecified foreground and background colors.
(turn_off_face): Handle unspecified-fg and unspecified-bg colors.
* dosfns.c (unspecified_colors): New variable.
(msdos_stdcolor_idx): Handle unspecified-fg and unspecified-bg
color names, return FACE_TTY_DEFAULT_FG_COLOR and
FACE_TTY_DEFAULT_BG_COLOR, respectively.
(msdos_stdcolor_name): Handle FACE_TTY_DEFAULT_FG_COLOR and
FACE_TTY_DEFAULT_BG_COLOR, return Qunspecified_fg and
Qunspecified_bg, respectively.
* msdos.c (IT_set_face): Support FACE_TTY_DEFAULT_FG_COLOR and
FACE_TTY_DEFAULT_BG_COLOR as pixel values.
* faces.el (face-read-integer, read-face-attribute)
(color-defined-p, color-values): Allow color values unspecified-fg
and unspecified-bg, handle them as unspecified.
composition-function-table.
(tibetan-composable-pattern): New variable.
(tibetan-subjoined-transcription-alist): Change key "R" to "+R".
(tibetan-precomposition-rule-alist): Move punctuations to
tibetan-punctuation-transcription-alist and
tibetan-obsolete-glyphs.
(tibetan-punctuation-transcription-alist): New variable.
(tibetan-obsolete-glyphs): New variable.
(tibetan-regexp): Improve the initialization code.
(tibetan-char-p): Renamed from tibetan-char-examin.
(tibetan-composable-examin) (tibetan-complete-char-examin)
(tibetan-vertical-stacking) (tibetan-composition): Deleted.
(tibetan-add-components): New function.
(tibetan-composition-function): New function.
make-category-table, not copy-category-table, to initialize it.
(thai-composition-pattern): New variable.
(thai-with-thai-category-table): New macro.
(thai-compose-region, thai-compose-string): Rewritten.
(thai-post-read-conversion): Rewritten.
(thai-pre-write-conversion): Deleted.
(thai-composition-function): New function.
NAME.
(quail-get-translation): If DEF is a symbol but not a function,
ignore it.
(quail-start-translation): Put a key sequence undefined in the
translation keymap in unread-command-events, not generated-events.
Return parameterized event (compose-last-chars N) if the input
characters should be composed.
(quail-map-definition): If DEF is t, treat it as nil.
(quail-delete-last-char): Delete the quail region.
(quail-show-translations): Don't show list of translations if the
quail package is deterministic.
(quail-completion-max-depth): New variable.
(quail-completion-1): Pay attention to the above variable. Fix
for the case that a translation is a function.
(quail-map-from-table, quail-map-from-table-1,
quail-map-from-table-2): New functions.
(quail-lookup-map-and-concat): New function
non-nil) at the tail of ALIST.
(compose-region, decompose-region, decompse-string,
reference-point-alist, compose-chars): Moved to composite.el.
(compose-chars-component, compose-chars-rule,
decompose-composite-char): Deleted.
for Emacs 20.4 and the earlier versions.
(ps-mule-init-external-library): Just require a feature for
external libraries.
(ps-mule-prologue): Postscript code modified for new composition.
(ps-mule-find-wrappoint): New arg COMPOSITION.
(ps-mule-plot-string): Delete code for composite characaters.
(ps-mule-plot-composition): New funcion.
(ps-mule-prepare-font-for-components): New function.
(ps-mule-plot-components): New function.
(ps-mule-composition-prologue-generated): Renamed from
ps-mule-cmpchar-prologue-generated.
(ps-mule-composition-prologue): New named from
ps-mule-cmpchar-prologue. Modified for new composition.
(ps-mule-plot-rule-cmpchar, ps-mule-plot-cmpchar,
ps-mule-prepare-cmpchar-font): Deleted.
(ps-mule-string-encoding): New arg NO-SETFONT.
(ps-mule-bitmap-prologue): In Postscript code of BuildGlyphCommon,
check Composing, not Cmpchar
(ps-mule-initialize): Set ps-mule-composition-prologue-generated
to nil.
(ps-mule-begin-job): Check existence of new composition.
for composition.
(x_append_composite_glyph): New function.
(VCENTER_BASELINE_OFFSET): New macro.
(x_produce_glyphs): If it->what == IT_COMPOSITION, setup members
of struct it for the composition. Cache pixel offsets in the
struct composition. Delete codes for a composite character.
Handle Vignore_relative_composition in composition code.
(struct glyph_string): Delete member cmpcharp, add new member cmp.
(x_set_cursor_gc): Check s->cmp, not s->cmpcharp.
(x_compute_glyph_string_overhangs): Likewise.
(x_get_glyph_overhangs): Delete codes for a composite character.
(x_right_overwritten): Check s->cmp, not s->cmpcharp.
(x_draw_glyph_string_background): Likewise. Delete codes for
checking s->gidx for a composition.
(x_draw_glyph_string_foreground): Delete code for a composite
character.
(x_draw_composite_glyph_string_foreground): New function.
(x_draw_glyph_string_box): Check s->cmp, not s->cmpcharp.
(x_draw_glyph_string): Handle the case of COMPOSITE_GLYPH.
(struct work): Deleted.
(x_fill_composite_glyph_string): Argument changed. Mostly
rewritten for that.
(x_fill_glyph_string): Don't check CHARSET_COMPOSITION.
(BUILD_CHAR_GLYPH_STRINGS): Don't handle composition here.
(BUILD_COMPOSITE_GLYPH_STRING): New macro.
(BUILD_GLYPH_STRINGS): For composition, call
BUILD_COMPOSITE_GLYPH_STRING.
(x_new_font): Initialize f->output_data.x->baseline_offset, not
f->output_data.x->font_baseline.
(face_before_or_after_it_pos): For composition, check face of a
character after the composition.
(handle_composition_prop): New function.
(get_next_display_element): Adjusted for the change of
CHAR_STRING.
(set_iterator_to_next): Handle the case that it->method ==
next_element_from_composition.
(next_element_from_composition): New function.
(message_dolog): Adjusted for the change of CHAR_STRING.
(set_message_1): Likewise.
(check_point_in_composition): New function.
(reconsider_clip_changes): If point moved into or out of
composition, set b->clip_changed to 1 to force updating of the
screen.
(disp_char_vector): Delete codes for a composite character.
(decode_mode_spec_coding): Adjusted for the change of CHAR_STRING.
character. Adjusted for the change of CHAR_STRING.
(produce_glyphs): When called, it->what can be IT_COMPOSITION.
Delete codes for a composite character.
Delete a code that handles an invalid too-long multibyte sequence
because we are now sure that we never encounter with such a
sequence.
(read_multibyte): Use macro MAX_MULTIBYTE_LENGTH, not
MAX_LENGTH_OF_MULTI_BYTE_FORM.
(init_obarray): Likewise.
(read1): Likewise. Adjusted for the change of CHAR_STRING.
(Vglobal_disable_point_adjustment): New variable.
(syms_of_keyboard): Declare them as Lisp variables.
(command_loop_1): Check them and call adjust_point_for_property if
necessary.
(adjust_point_for_property): New function.
(MULTIBYTE_BYTES_WIDTH): Call STRING_CHAR_AND_LENGTH with
MAX_MULTIBYTE_LENGTH, not MAX_LENGTH_OF_MULTI_BYTE_FORM.
(current_column_1): Handle new way of composition.
(Fmove_to_column): Likewise.
(compute_motion): Likewise.
(syms_of_fontset): Declare it as a Lisp variable and initialize.
Set Vignore_relative_composition to nil.
(fs_load_font): Initialize `vertical_centering' of struct
font_info.
(concat): Adjusted for the change of CHAR_STRING.
(Ffillarray): Adjusted for the change of CHAR_STRING.
(Fset_char_table_default): Delete codes for a composite character.
(hash_put): Return hash index.
CHAR_STRING.
(Finsert_file_contents): Set Vlast_coding_system_used before
calling signal_after_change. Call update_compositions if some
texts are inserted..
(Fwrite_region): Adjusted for the change of a_write and e_write.
(a_write): Argument changed. Work based on character position,
not byte position.
(e_write): Argument changed. Handle new way of composition.
