member require_flushing.
(CODING_REQUIRE_FLUSHING_MASK, CODING_REQUIRE_DECODING_MASK,
CODING_REQUIRE_ENCODING_MASK, CODING_REQUIRE_DETECTION_MASK): New
macros.
(CODING_REQUIRE_NO_CONVERSION, CODING_MAY_REQUIRE_NO_CONVERSION):
These macros deleted.
(CODING_REQUIRE_FLUSHING, CODING_REQUIRE_DECODING,
CODING_REQUIRE_ENCODING, CODING_REQUIRE_DETECTION): New macros.
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.
charset_revision_number.
(CODING_SPEC_ISO_SAFE_CHARSETS): This macro deleted.
(CODING_SPEC_ISO_REVISION_NUMBER): New macro.
(struct coding_system): Member `safe_charsets' is moved from
struct iso2022_spec.
Define to work around hpux 7 <math.h> problem.
(<math.h>): Include.
(<float.h>, <stdlib.h>): Include if STDC_HEADERS.
(FLT_RADIX, DBL_MANT_DIG, DBL_DIG): Default to IEEE values.
(DOUBLE_DIGITS_BOUND): New macro.
(float_to_string): By default, generate the fewest number of digits
that represent the floating point value exactly.
(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.
(selection_data_to_lisp_data): Do not perform code conversion if
the default value of enable-multibyte-characters is nil.
(lisp_data_to_selection_data): Likewise. Access the array
`charsets' in the correct way.
