(Venable_character_unification,
Vstandard_character_unification_table_for_read,
Vstandard_character_unification_table_for_write,
Qcharacter_unification_table): New variables.
(syms_of_coding): Initialize and declare them.
(DECODE_ISO_CHARACTER): Modified to handle a character unification
table instead of Valternate_charset_table.
(DECODE_DESIGNATION): Delete handling of Valternate_charset_table.
(decode_coding_iso2022): Handle a character unification table.
(ENCODE_ISO_CHARACTER): New macro.
(encode_designation_at_bol): Handle a character unification table.
Do not return -1 even if end-of-line is not in the current run.
(encode_coding_iso2022): Handle a character unification table.
Call macro ENCODE_ISO_CHARACTER instead of calling
ENCODE_ISO_CHARACTER_DIMENSION1 and
ENCODE_ISO_CHARACTER_DIMENSION2 directly. Check the size of
carryover before copying it to destination.
(setup_coding_system): Initialize the member
character_unification_table of the struct coding system to Qnil.
(Fset_keyboard_coding_system): Doc string augmented.
of array proc_encode_coding_system fixed.
Remove prefix "coding-system-" from coding system symbol names.
(encode_coding) : Fix typo ("=" -> "==").
(detect_coding_iso2022): Detect coding-category-iso-8-2
more precisely.
(ENCODE_RESET_PLANE_AND_REGISTER): Argument `eol' is
deleted. Don't call ENCODE_DESIGNATION if nothing designated
initially.
(encode_designation_at_bol) New function.
(encode_coding_iso2022): Handle CODING_FLAG_ISO_INIT_AT_BOL and
CODING_FLAG_ISO_DESIGNATE_AT_BOL.
(setup_coding_system): Now, flags of ISO2022 coding
systems contains charsets instead of charset IDs.
(detect_coding_iso2022, decode_coding_iso2022): Make the code
robust against invalid SI and SO.
(Ffind_coding_system, syms_of_coding): Escape newlines in docstring.
(setup_coding_system): Correct setting coding->symbol
and coding->eol_type. The performance improved.
