skf - simple kanji filter

This is patch 17 of skf 2.00 series.

patch 17

• [skf:39695] make localedir option effective

• [skf:39836] support behaviour change in ruby2.7

• fix: make oldincludedir/docdir option effective

• fix: add support ruby2.8, python 3.9 to configure

patch 16

• security fix punycode or uri as ic crashes

• fix koi-8-u is not defined properly

• fix some codes does not decode correctly in rot mode

patch 15

• [skf:39111] fix: man directory setting through configure.

• fix: -r with SJIS-in does not work.

• fix: --set option with separate arguments error handling bug.

• fix: out_codeset display in debug mode does not work

• fix: rot char in be-in deleted from stream due to wrong bound check.

patch 14

• fix: inquiry reports UTF-32 as UTF-16

• New japanese era support.

patch 13

• [skf:38570] do not treat LWL "8-bit binary" as codeset.

• don't bite arguments after --

• add -t option for nkf compatibility

• undocumented nkf behavior support: -L0, -g0-2

• re-enable -n option for nkf-compatibility

• security hungup fixed if file open failed in in-place option.

• security fix crash in in-place option.

• fix codeset inquiry in in-place option.

• tries to unlink temporal file when in-place rename failed.

• retain input files when suffix is added in --in-place, overwrite

patch 12

• fix: keis strout doesn't convert ascii strings to EBCDICs
• fix: ebcdic force-lineend changed to NEL
• fix: inquiry output code control. fixes to force ASCII
• fix: B-right/V strout doesn't convert ascii strings to EBCDICs
• fix: punycode with idn prohibit char causes character drop.
• fix: similar bug in hz & zW EOF handling.

• fix: disable MIME cp932 related cname.

• Security fix clashes related space-convert
• fix: convert-html-uri does not work.

patch 11

• fix: set-lang doesn't work.
• fix: cname containing '.' isn't recognized.
• fix: rfc1554 iso-2022-jp-2-kr doesn't work.
• fix: euc-jp-ms etc. get wrong codeset
• fix: crash on bright/v output with html-sanitize
• fix: zW related bug, mingw related bug
• fix: koi-8, cp1251 output doesn't work.
• fix: ka + handakuon generate garbage.
• fix: backport dynamic loading enable-patch on msys.

patch 10

• fix --nkf-help typo.
• security unicode decomposition crash fixed
• security locale output crash fixed.
• added 932/943 as aliases for cp932/cp943 (msys related fix)
• --set-g* crashes if following string is not charset
• Fix: "--" option does not work
• security fix crash in U+1f1xx conversion.
• fix: delete iso-2022-jp-ms wrong definition (not security issue.)
• fix: skferr table report.
• fix: HZ, zW GL changed to ASCII.
• security fix sjis-oldntt crashes in private area
• fix: nkf_no_hk couldn't reset from command line.
• fix: some option doesn't work for racing.
• fix: convert-html-uri does not work.
• fix: latin2html output goes without encode redirection.
• fix: some man page gliches.
• fix: halfwidth mime character count correction.
• fix: cns11463 single shift2 fails.
• fix: cannot return iso-2022 from unicode.
• fix: [skf:37767] configure portability fix.

patch 9

• fix error message for "-o" option

• fix obsolete option action properly

• fix octal encoding output wrong code on tail.

• fix to suppress MIME encoding on transparent mode

• fix X-0213 reverse conversion table

• nkf-compat hankaku-kana output condition fix

• added cp65001 as UTF-8 alias, and also cp65000+cp1200+1201

• fix B-right output

• fix zW output space escape condition.

This is patch 8 for skf-2.00

patch8

• fix: some duplicate option big assigns fixed.

• suppress some codeset for MIME use

• fix: iso-2022-jp-2-2004 doesn't show in MIME

• hack: cp50221,50222 private area output supporessed

patch7

• fix: nkf compatmode -mQ and -l behavior changed.

• various misc bug fixed. please refer debian/changelog

patch6

• fix UTF-8 likely update on ASCII

this is patch 6 for skf-2.00

patch6

• fix UTF-8 likely update on ASCII

patch5

• fix hungup if open() returns EAGAIN

• -MQ does not work as nkf in nkf-compat mode

• fix nkf-help and actual option does not match.

• fix unicode decompose logics

• other misc. minor bugs.

patch4

• fix stdin open fail on MSYS environment

• disable dynamic loading on MSYS environment

• UTF-32 definition fixed.

patch3

• LWL related initialize miss fixed.

• Windows binmode call bug fixed.

• ruby 2.3 support

• UTF-16/32 related various bug fixed.

patch2

• fix skf doesn't work on MINGW

• fix python2 plugin doesn't properly check memory allocation

• added README_j.txt

• fixed various LWL bugs

• fixed debian packaging definition.

patch1

• winsami/iscii wrong table definition fixed

• python3 specific invalid option in man page deleted