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.
(struct glyph): Add new sub-structure cmp to the union `u'.
(enum display_element_type): New member IT_COMPOSITION.
(enum prop_idx): New member COMPOSITION_PROP_IDX.
(struct it): New members cmp_id, cmp_len.
(DECODE_CHARACTER_ASCII): Don't handle composition here.
(DECODE_CHARACTER_DIMENSION1): Likewise. Don't check the validity
of multibyte code here.
(DECODE_CHARACTER_DIMENSION2): Likewise.
(detect_coding_emacs_mule): Change the case label from
EMACS_leading_code_composition to 0x80.
(detect_coding_iso2022): Handle new composition sequence.
(DECODE_ISO_CHARACTER): Likewise.
(check_composing_code): Deleted.
(coding_allocate_composition_data): New function.
(CODING_ADD_COMPOSITION_START) (CODING_ADD_COMPOSITION_END)
(CODING_ADD_COMPOSITION_COMPONENT) (DECODE_COMPOSITION_START)
(DECODE_COMPOSITION_END) (DECODE_COMPOSITION_RULE): New macros.
(decode_coding_iso2022): Handle new composition sequence.
(ENCODE_ISO_CHARACTER): Don't check composition here.
(ENCODE_COMPOSITION_RULE) (ENCODE_COMPOSITION_START): New macros.
(ENCODE_COMPOSITION_NO_RULE_START)
(ENCODE_COMPOSITION_WITH_RULE_START): Deleted.
(ENCODE_COMPOSITION_END): Handle new composition sequence.
(ENCODE_COMPOSITION_FAKE_START): New macro.
(encode_coding_iso2022): Handle new composition sequence.
(ENCODE_SJIS_BIG5_CHARACTER): Delete superfluous `;' at the tail.
(encode_coding_sjis_big5): Ignore composition.
(setup_coding_system): Initialize new members of struct
coding_system. Enable composition only when the coding system has
`composition' property t.
(coding_free_composition_data) (coding_adjust_composition_offset)
(coding_save_composition) (coding_restore_composition): New
functions.
(code_convert_region): Call coding_save_composition for encoding
and coding_allocate_composition_data for decoding. Don't skip
ASCII characters if we handle composition on encoding. Call
signal_after_change with Check_BORDER.
(code_convert_string): Call coding_save_composition for encoding
and coding_allocate_composition_data for decoding. Don't skip
ASCII characters if we handle composition on encoding.
(code_convert_string1): Set Vlast_coding_system_used after calling
code_convert_string.
(code_convert_string_norecord): Disable composition.
(Fset_terminal_coding_system_internal): Likewise.
(Fset_safe_terminal_coding_system_internal): Likewise.
(Fset_keyboard_coding_system_internal): Likewise.
(init_coding_once): Set emacs_code_class[0x80] to
EMACS_invalid_code.
