at the head and tail of conversion region correctly when adjusting
position keepers. Call adjust_after_insert to record undo info
and adjust markers when we don't have to change byte sequence of
a buffer.
(ENCODE_SINGLE_SHIFT_2, ENCODE_SINGLE_SHIFT_3,
encode_coding_iso2022, decode_coding_sjis_big5,
encode_coding_sjis_big5, decode_eol, encode_eol, decode_coding,
encode_coding): Likewise.
(shrink_decoding_region, shrink_encoding_region): Do not skip
non-ASCII code in any cases. Bug fix for getting starting address
from BEG.
(code_convert_region): Sync character positions correctly by
paying attention to coding->fake_multibyte.
(code_convert_string): Set number of character and bytes just
processed in members of CODING.
(code_convert_string): Adjusted for the change of
code_convert_region.
(code_convert_region1): Likewise.
(coding_category_table): This variable deleted.
(Vcoding_category_table): New variable.
(coding_category_name): Add "coding-category-iso-7-tight".
(detect_coding_iso2022): Check the mask
CODING_FLAG_ISO_DESIGNATION in CODING->FLAGS. Check a new coding
category coding-category-iso-7-tight.
(DECODE_DESIGNATION): Decode only such designations that CODING
can handle.
(check_composing_code): New function.
(decode_coding_iso2022): Decode only such characters that CODING
can handle.
(encode_coding_iso2022): Before and after encoding composite
characters, reset designation and invocation status.
(detect_coding_sjis): Delete unnecessary check.
(detect_coding_big5): Likewise.
(encode_designation_at_bol): Check the validity of requested
designation register.
(setup_coding_system): Set requested designation registers for
non-supported charsets to
CODING_SPEC_ISO_NO_REQUESTED_DESIGNATION. Set mask
CODING_FLAG_ISO_DESIGNATION in CODING->FLAGS. Code tuned for
no-conversion and undecided.
(detect_coding): Adjusted for the new variable
Vcoding_category_table.
(syms_of_coding): Initialize Vcoding_category_table and staticpro
it. Register select-safe-coding-system as a Lisp variable.
(DECODE_CHARACTER_ASCII): Update coding->produced_char;
(DECODE_CHARACTER_DIMENSION1): Likewise.
(Qraw_text, Qcoding_category): New variables.
(syms_of_coding): Intern and staticpro them.
(coding_system_table): New variable.
(CHARSET_OK, SHIFT_OUT_OK): New macros.
(detect_coding_iso2022): Detection algorithm improved.
(decode_coding_iso2022): Arg CONSUMED deleted, and the meaning of
return value changed. Update members produced, produced_char,
consumed, consumed_char of the struct *coding. Pay attention to
CODING_MODE_INHIBIT_INCONSISTENT_EOL.
(encode_coding_iso2022): Likewise.
(decode_coding_sjis_big5, encode_coding_sjis_big5): Likewise.
(decode_eol, encode_eol): Likewise.
(ENCODE_ISO_CHARACTER): Update coding->consumed_char.
(DECODE_SJIS_BIG5_CHARACTER): Update coding->produced_char.
(ENCODE_SJIS_BIG5_CHARACTER): Update coding->consumed_char.
(detect_coding(detect_coding(detect_ITIES and SKIP.
(detect_coding): Adjusted for the change of detect_coding_mask.
Update coding->heading_ascii.
(detect_eol_type): New arg SKIP.
(detect_eol): Adjusted for the change of detect_eol_type.
(ccl_codign_driver): New function.
(decode_coding): Arg CONSUMED deleted, and the meaning of return
value changed. Update members produced, produced_char, consumed,
consumed_char of the struct *coding.
(encode_coding): Likewise.
(shrink_decoding_region, shrink_encoding_region): New function.
(code_convert_region, code_convert_string): Completely rewritten.
(detect_coding_sy(detect_coding_sy(detect_coding_sy(detect_coding_sy(detect_codiT.
(Fdetect_coding_string): New function.
(Fdecode_coding_region, Fencode_coding_region): Adjusted for the
change of code_convert_region.
(Fdecode_coding_string, Fencode_coding_string): Adjusted for the
change of code_convert_string.
(Fupdate_iso_coding_systems): New function.
(init_coding_once): Initialize coding_system_table.
in accord with value of enable-multilibyte-characters.
(Fcoding_system_p): Doc fix.
(Fcheck_coding_system): Doc fix.
(Fterminal_coding_system): Doc fix.
(Fkeyboard_coding_system): Doc fix.
registers which should be designated at bol.
(Qsafe_charset): New variable.
(syms_of_coding): Initialize and staticpro it.
(detect_coding_iso2022): Handle SS2 and SS3 correctly.
(DECODE_ISO_CHARACTER): Recover from incorrect encoding in less
dangerous way.
(ENCODE_DESIGNATION): Get charset revision number by
CODING_SPEC_ISO_REVISION_NUMBER.
(setup_coding_system): Initialize the member safe_charsets from
the coding systems's safe-charsets property. Initialize the
member charset_revision_number of struct iso2022_spec.
(ENCODE_ISO_CHARACTER_DIMENSION1): Adjusted for the change of
`safe_charsets' member.
(ENCODE_ISO_CHARACTER_DIMENSION2): Likewise.
(code_convert_region): Restore the current point after calling a
function in coding->post_read_conversion.
(Vcoding_system_list, Vcoding_system_alist): New variables.
(setup_coding_system): Adjusted for the change in mule.el.
(detect_eol): Likewise.
(Fcoding_system_spec): Changed to Lisp function in mule.el.
(Fcoding_system_p): Do not call Fcoding_system_spec.
(Fread_coding_system): Give Vcoding_system_alist to
Fcompleting_read as the arg TABLE.
(Fread_non_nil_coding_system): Likewise. Give
Vcoding_system_history to Fcompleting_read as the arg HIST.
(syms_of_coding): Deleted codes for Qcoding_system and
Fcoding_system_spec. Set up new Lisp variables.
format of raw-text file is inconsistent. Just read it by
raw-text-unix.
(Fdetect_coding_region): Do not select no-conversion even if EOL
format of raw-text file is inconsistent.
(syms_of_coding): Initialize and staticpro them.
(coding_category_name): Include "coding-category-raw-test".
(setup_coding_system): Handle coding_type_raw_text.
(detect_coding_mask): Include CODING_CATEGORY_MASK_RAW_TEXT in the
return value instead of CODING_CATEGORY_MASK_BINARY.
(detect_coding): Do not check the case that `mask' is 0, which
never happens now.
(detect_eol_type): If EOL format is inconsistent, return
CODING_EOL_INCONSISTENT.
(detect_eol): If EOL format of raw-text file is inconsistent,
detect it as no-conversion.
(decode_coding): Handle coding_type_raw_text.
(encode_coding): Likewise.
(Fdetect_coding_region): Ajusted for the above changes.
(shrink_conversion_area): Handle coding_type_raw_text.
CODING_FLAG_ISO_SAFE.
(ENCODE_ISO_CHARACTER_DIMENSION2): Likewise.
(safe_terminal_coding): New variable.
(Fset_safe_terminal_coding_system_internal): New function.
(init_coding_once): Initilize safe_terminal_coding.
(syms_of_coding): Declare set-safe-terminal-coding-system as a
Lisp function.
(Vmicrosoft_code_table): New variable.
(syms_of_coding): Declare it as a Lisp variable and initialize it.
(detect_coding_mask): Pay attention to Vmicrosoft_code_table.
7-bit encoding when designation to G1 occurs. If CSI, SS2, or SS3
is found, return CODING_CATEGORY_MASK_ISO_8_ELSE.
(Fdetect_coding_region): Doc-string modified.
character boundardy, set data in coding->carryover correctly, and
set SRC to SRC_END.
(encode_coding_sjis_big5): Likewise.
(encode_coding): Don't set coding->carryover_size to 0.
