Initial Commit

1 files changed, 684 insertions, 0 deletions

diff --git a/mksh/mkshrc b/mksh/mkshrc
new file mode 100644
index 0000000..5b61ae3
--- /dev/null
+++ b/mksh/mkshrc
@@ -0,0 +1,684 @@
+# $Id$
+# $MirOS: src/bin/mksh/dot.mkshrc,v 1.128 2020/04/13 18:39:03 tg Exp $
+#-
+# Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
+#		2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+#		2020
+#	mirabilos <m@mirbsd.org>
+#
+# Provided that these terms and disclaimer and all copyright notices
+# are retained or reproduced in an accompanying document, permission
+# is granted to deal in this work without restriction, including un-
+# limited rights to use, publicly perform, distribute, sell, modify,
+# merge, give away, or sublicence.
+#
+# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+# the utmost extent permitted by applicable law, neither express nor
+# implied; without malicious intent or gross negligence. In no event
+# may a licensor, author or contributor be held liable for indirect,
+# direct, other damage, loss, or other issues arising in any way out
+# of dealing in the work, even if advised of the possibility of such
+# damage or existence of a defect, except proven that it results out
+# of said person's immediate fault when using the work as intended.
+#-
+# ${ENV:-~/.mkshrc}: mksh initialisation file for interactive shells
+
+# catch non-mksh, non-lksh, trying to run this file
+case ${KSH_VERSION:-} in
+*LEGACY\ KSH*|*MIRBSD\ KSH*) ;;
+*) \return 0 ;;
+esac
+
+# give MidnightBSD's laffer1 a bit of csh feeling
+function setenv {
+	if (( $# )); then
+		\\builtin eval '\\builtin export "$1"="${2:-}"'
+	else
+		\\builtin typeset -x
+	fi
+}
+
+# pager (not control character safe)
+smores() (
+	\\builtin set +m
+	\\builtin cat "$@" |&
+	\\builtin trap "rv=\$?; \\\\builtin kill $! >/dev/null 2>&1; \\\\builtin exit \$rv" EXIT
+	while IFS= \\builtin read -pr line; do
+		llen=${%line}
+		(( llen == -1 )) && llen=${#line}
+		(( llen = llen ? (llen + COLUMNS - 1) / COLUMNS : 1 ))
+		if (( (curlin += llen) >= LINES )); then
+			\\builtin print -nr -- $'\e[7m--more--\e[0m'
+			\\builtin read -u1 || \\builtin exit $?
+			[[ $REPLY = [Qq]* ]] && \\builtin exit 0
+			curlin=$llen
+		fi
+		\\builtin print -r -- "$line"
+	done
+)
+
+# customise your favourite editor here; the first one found is used
+for EDITOR in "${EDITOR:-}" jupp jstar mcedit ed vi; do
+	EDITOR=$(\\builtin whence -p "$EDITOR") || EDITOR=
+	[[ -n $EDITOR && -x $EDITOR ]] && break
+	EDITOR=nvim
+done
+
+\\builtin alias ls=ls l='ls -F' la='l -a' ll='l -l' lo='l -alo'
+\: "${EDITOR:=/bin/ed}${TERM:=vt100}${USER:=$(\\builtin ulimit -c 0; id -un \
+    2>/dev/null)}${HOSTNAME:=$(\\builtin ulimit -c 0; hostname 2>/dev/null)}"
+[[ $HOSTNAME = ?(?(ip6-)localhost?(6)) ]] && HOSTNAME=nil; \\builtin unalias ls
+\\builtin export EDITOR HOSTNAME TERM USER="${USER:-?}"
+
+# minimal support for lksh users
+if [[ $KSH_VERSION = *LEGACY\ KSH* ]]; then
+	PS1='$USER@${HOSTNAME%%.*}:$PWD>'
+	\\builtin return 0
+else
+        PS1='$(print -n "\E[1;32m[`logname`@`hostname`]:\E[1;37m";if [ "${PWD#$HOME}" = "$PWD" ]; then print -n "$PWD"; else print -n "~${PWD#$HOME}"; fi; print "\E[1;32m$\E[0m ")'
+fi
+
+# mksh-specific from here
+\: "${MKSH:=$(\\builtin whence -p mksh)}${MKSH:=/bin/mksh}"
+\\builtin export MKSH
+
+# prompts
+#PS4='[$EPOCHREALTIME] '; PS1='#'; (( USER_ID )) && PS1='$'; PS1=$'\001\r''${|
+#	\\builtin typeset e=$?
+#
+#	(( e )) && REPLY+="$e|"
+#        REPLY+=${USER}@${HOSTNAME%%.*}:
+#
+#	\\builtin typeset d=${PWD:-?}/ p=~; [[ $p = ?(*/) ]] || d=${d/#$p\//\~/}
+#	d=${d%/}; \\builtin typeset m=${%d} n p=...; (( m > 0 )) || m=${#d}
+#	(( m > (n = (COLUMNS/3 < 7 ? 7 : COLUMNS/3)) )) && d=${d:(-n)} || p=
+#	REPLY+=$p$d
+#
+#	\\builtin return $e
+#} '"$PS1 "
+
+# utilities
+\\builtin alias doch='sudo mksh -c "$(\\builtin fc -ln -1)"'
+\\builtin command -v rot13 >/dev/null || \\builtin alias rot13='tr \
+    abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ \
+    nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
+if \\builtin command -v hd >/dev/null; then
+	\:
+elif \\builtin command -v hexdump >/dev/null; then
+	function hd {
+		hexdump -e '"%08.8_ax  " 8/1 "%02X " " - " 8/1 "%02X "' \
+		    -e '"  |" "%_p"' -e '"|\n"' "$@"
+	}
+else
+	function hd {
+		\\builtin cat "$@" | hd_mksh
+	}
+fi
+
+# NUL-safe and EBCDIC-safe hexdump (from stdin)
+function hd_mksh {
+	\\builtin typeset -Uui16 -Z11 pos=0
+	\\builtin typeset -Uui16 -Z5 hv=2147483647
+	\\builtin typeset dasc dn line i
+	\\builtin set +U
+
+	while \\builtin read -arn 512 line; do
+		\\builtin typeset -i1 'line[*]'
+		i=0
+		while (( i < ${#line[*]} )); do
+			dn=
+			(( (hv = line[i++]) != 0 )) && dn=${line[i-1]#1#}
+			if (( (pos & 15) == 0 )); then
+				(( pos )) && \
+				    \\builtin print -r -- "$dasc|"
+				\\builtin print -nr "${pos#16#}  "
+				dasc=' |'
+			fi
+			\\builtin print -nr "${hv#16#} "
+			if [[ $dn = [[:print:]] ]]; then
+				dasc+=$dn
+			else
+				dasc+=.
+			fi
+			(( (pos++ & 15) == 7 )) && \
+			    \\builtin print -nr -- '- '
+		done
+	done
+	while (( pos & 15 )); do
+		\\builtin print -nr '   '
+		(( (pos++ & 15) == 7 )) && \
+		    \\builtin print -nr -- '- '
+	done
+	(( hv == 2147483647 )) || \\builtin print -r -- "$dasc|"
+}
+
+function which {
+	\\builtin typeset p x c
+	\\builtin typeset -i a=0 rv=2 e
+	\\builtin set +e
+	\\builtin set -o noglob
+
+	while \\builtin getopts "a" x; do
+		case $x {
+		(a)	a=1 ;;
+		(+a)	a=0 ;;
+		(*)	\\builtin print -ru2 'Usage: which [-a] name [...]'
+			\\builtin return 255 ;;
+		}
+	done
+	\\builtin shift $((OPTIND - 1))
+
+	#        vvvvvvvvvvvvvvvvvvvv should be def_path
+	p=${PATH-/usr/bin$PATHSEP/bin}
+	#       ^ no colon!
+
+	# trailing PATHSEP vs field splitting
+	[[ $p = *"$PATHSEP" ]] && p+=.
+
+	IFS=$PATHSEP
+	\\builtin set -A p -- ${p:-.}
+	IFS=$' \t\n'
+
+	for x in "$@"; do
+		if (( !a )) || [[ $x = */* ]]; then
+			\\builtin whence -p -- "$x"
+			e=$?
+		else
+			e=1
+			for c in "${p[@]}"; do
+				PATH=${c:-.} \\builtin whence -p -- "$x" && e=0
+			done
+		fi
+		(( rv = (e == 0) ? (rv & ~2) : (rv == 2 ? 2 : 1) ))
+	done
+	\\builtin return $rv
+}
+
+# Berkeley C shell compatible dirs, popd, and pushd functions
+# Z shell compatible chpwd() hook, used to update DIRSTACK[0]
+DIRSTACKBASE=$(\\builtin realpath ~/. 2>/dev/null || \
+    \\builtin print -nr -- "${HOME:-/}")
+\\builtin set -A DIRSTACK
+function chpwd {
+	DIRSTACK[0]=$(\\builtin realpath . 2>/dev/null || \
+	    \\builtin print -nr -- "$PWD")
+	[[ $DIRSTACKBASE = ?(*/) ]] || \
+	    DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/\~}
+	\:
+}
+\chpwd .
+cd() {
+	\\builtin cd "$@" || \\builtin return $?
+	\chpwd "$@"
+}
+function cd_csh {
+	\\builtin typeset d t=${1/#\~/$DIRSTACKBASE}
+
+	if ! d=$(\\builtin cd "$t" 2>&1); then
+		\\builtin print -ru2 "${1}: ${d##*cd: $t: }."
+		\\builtin return 1
+	fi
+	\cd "$t"
+}
+function dirs {
+	\\builtin typeset d dwidth
+	\\builtin typeset -i fl=0 fv=0 fn=0 cpos=0
+
+	while \\builtin getopts ":lvn" d; do
+		case $d {
+		(l)	fl=1 ;;
+		(v)	fv=1 ;;
+		(n)	fn=1 ;;
+		(*)	\\builtin print -ru2 'Usage: dirs [-lvn].'
+			\\builtin return 1 ;;
+		}
+	done
+	\\builtin shift $((OPTIND - 1))
+	if (( $# > 0 )); then
+		\\builtin print -ru2 'Usage: dirs [-lvn].'
+		\\builtin return 1
+	fi
+	if (( fv )); then
+		fv=0
+		while (( fv < ${#DIRSTACK[*]} )); do
+			d=${DIRSTACK[fv]}
+			(( fl )) && d=${d/#\~/$DIRSTACKBASE}
+			\\builtin print -r -- "$fv	$d"
+			(( ++fv ))
+		done
+	else
+		fv=0
+		while (( fv < ${#DIRSTACK[*]} )); do
+			d=${DIRSTACK[fv]}
+			(( fl )) && d=${d/#\~/$DIRSTACKBASE}
+			(( dwidth = (${%d} > 0 ? ${%d} : ${#d}) ))
+			if (( fn && (cpos += dwidth + 1) >= 79 && \
+			    dwidth < 80 )); then
+				\\builtin print
+				(( cpos = dwidth + 1 ))
+			fi
+			\\builtin print -nr -- "$d "
+			(( ++fv ))
+		done
+		\\builtin print
+	fi
+	\\builtin return 0
+}
+function popd {
+	\\builtin typeset d fa
+	\\builtin typeset -i n=1
+
+	while \\builtin getopts ":0123456789lvn" d; do
+		case $d {
+		(l|v|n)	fa+=" -$d" ;;
+		(+*)	n=2
+			\\builtin break ;;
+		(*)	\\builtin print -ru2 'Usage: popd [-lvn] [+<n>].'
+			\\builtin return 1 ;;
+		}
+	done
+	\\builtin shift $((OPTIND - n))
+	n=0
+	if (( $# > 1 )); then
+		\\builtin print -ru2 popd: Too many arguments.
+		\\builtin return 1
+	elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
+		if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
+			\\builtin print -ru2 popd: Directory stack not that deep.
+			\\builtin return 1
+		fi
+	elif [[ -n $1 ]]; then
+		\\builtin print -ru2 popd: Bad directory.
+		\\builtin return 1
+	fi
+	if (( ${#DIRSTACK[*]} < 2 )); then
+		\\builtin print -ru2 popd: Directory stack empty.
+		\\builtin return 1
+	fi
+	\\builtin unset DIRSTACK[n]
+	\\builtin set -A DIRSTACK -- "${DIRSTACK[@]}"
+	\cd_csh "${DIRSTACK[0]}" || \\builtin return 1
+	\dirs $fa
+}
+function pushd {
+	\\builtin typeset d fa
+	\\builtin typeset -i n=1
+
+	while \\builtin getopts ":0123456789lvn" d; do
+		case $d {
+		(l|v|n)	fa+=" -$d" ;;
+		(+*)	n=2
+			\\builtin break ;;
+		(*)	\\builtin print -ru2 'Usage: pushd [-lvn] [<dir>|+<n>].'
+			\\builtin return 1 ;;
+		}
+	done
+	\\builtin shift $((OPTIND - n))
+	if (( $# == 0 )); then
+		if (( ${#DIRSTACK[*]} < 2 )); then
+			\\builtin print -ru2 pushd: No other directory.
+			\\builtin return 1
+		fi
+		d=${DIRSTACK[1]}
+		DIRSTACK[1]=${DIRSTACK[0]}
+		\cd_csh "$d" || \\builtin return 1
+	elif (( $# > 1 )); then
+		\\builtin print -ru2 pushd: Too many arguments.
+		\\builtin return 1
+	elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
+		if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
+			\\builtin print -ru2 pushd: Directory stack not that deep.
+			\\builtin return 1
+		fi
+		while (( n-- )); do
+			d=${DIRSTACK[0]}
+			\\builtin unset DIRSTACK[0]
+			\\builtin set -A DIRSTACK -- "${DIRSTACK[@]}" "$d"
+		done
+		\cd_csh "${DIRSTACK[0]}" || \\builtin return 1
+	else
+		\\builtin set -A DIRSTACK -- placeholder "${DIRSTACK[@]}"
+		\cd_csh "$1" || \\builtin return 1
+	fi
+	\dirs $fa
+}
+
+# base64 encoder and decoder, RFC compliant, NUL safe, not EBCDIC safe
+function Lb64decode {
+	\\builtin set +U
+	\\builtin typeset c s="$*" t
+	[[ -n $s ]] || { s=$(\\builtin cat; \\builtin print x); s=${s%x}; }
+	\\builtin typeset -i i=0 j=0 n=${#s} p=0 v x
+	\\builtin typeset -i16 o
+
+	while (( i < n )); do
+		c=${s:(i++):1}
+		case $c {
+		(=)	\\builtin break ;;
+		([A-Z])	(( v = 1#$c - 65 )) ;;
+		([a-z])	(( v = 1#$c - 71 )) ;;
+		([0-9])	(( v = 1#$c + 4 )) ;;
+		(+)	v=62 ;;
+		(/)	v=63 ;;
+		(*)	\\builtin continue ;;
+		}
+		(( x = (x << 6) | v ))
+		case $((p++)) {
+		(0)	\\builtin continue ;;
+		(1)	(( o = (x >> 4) & 255 )) ;;
+		(2)	(( o = (x >> 2) & 255 )) ;;
+		(3)	(( o = x & 255 ))
+			p=0
+			;;
+		}
+		t+=\\x${o#16#}
+		(( ++j & 4095 )) && \\builtin continue
+		\\builtin print -n $t
+		t=
+	done
+	\\builtin print -n $t
+}
+function Lb64encode {
+	\\builtin set +U
+	\\builtin typeset c s t table
+	\\builtin set -A table -- A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \
+	    a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 + /
+	if (( $# )); then
+		\\builtin read -raN-1 s <<<"$*"
+		\\builtin unset s[${#s[*]}-1]
+	else
+		\\builtin read -raN-1 s
+	fi
+	\\builtin typeset -i i=0 n=${#s[*]} v
+
+	while (( i < n )); do
+		(( v = s[i++] << 16 ))
+		(( v |= s[i++] << 8 ))
+		(( v |= s[i++] ))
+		t+=${table[v >> 18]}${table[v >> 12 & 63]}
+		c=${table[v >> 6 & 63]}
+		if (( i <= n )); then
+			t+=$c${table[v & 63]}
+		elif (( i == n + 1 )); then
+			t+=$c=
+		else
+			t+===
+		fi
+		if (( ${#t} == 76 || i >= n )); then
+			\\builtin print -r $t
+			t=
+		fi
+	done
+}
+
+# Better Avalanche for the Jenkins Hash
+\\builtin typeset -Z11 -Uui16 Lbafh_v
+function Lbafh_init {
+	Lbafh_v=0
+}
+function Lbafh_add {
+	\\builtin set +U
+	\\builtin typeset s
+	if (( $# )); then
+		\\builtin read -raN-1 s <<<"$*"
+		\\builtin unset s[${#s[*]}-1]
+	else
+		\\builtin read -raN-1 s
+	fi
+	\\builtin typeset -i i=0 n=${#s[*]}
+
+	while (( i < n )); do
+		((# Lbafh_v = (Lbafh_v + s[i++] + 1) * 1025 ))
+		((# Lbafh_v ^= Lbafh_v >> 6 ))
+	done
+}
+function Lbafh_finish {
+	\\builtin typeset -Ui t
+
+	((# t = (((Lbafh_v >> 7) & 0x01010101) * 0x1B) ^ \
+	    ((Lbafh_v << 1) & 0xFEFEFEFE) ))
+	((# Lbafh_v = t ^ (t ^> 8) ^ (Lbafh_v ^> 8) ^ \
+	    (Lbafh_v ^> 16) ^ (Lbafh_v ^> 24) ))
+	\:
+}
+
+# strip comments (and leading/trailing whitespace if IFS is set) from
+# any file(s) given as argument, or stdin if none, and spew to stdout
+function Lstripcom {
+	\\builtin set -o noglob
+	\\builtin cat "$@" | while \\builtin read _line; do
+		_line=${_line%%#*}
+		[[ -n $_line ]] && \\builtin print -r -- $_line
+	done
+}
+
+# toggle built-in aliases and utilities, and aliases and functions from mkshrc
+function enable {
+	\\builtin typeset doprnt=0 mode=1 x y z rv=0
+	\\builtin typeset b_alias i_alias i_func nalias=0 nfunc=0 i_all
+	\\builtin set -A b_alias
+	\\builtin set -A i_alias
+	\\builtin set -A i_func
+
+	# accumulate mksh built-in aliases, in ASCIIbetical order
+	i_alias[nalias]=autoload; b_alias[nalias++]='\\builtin typeset -fu'
+	i_alias[nalias]=functions; b_alias[nalias++]='\\builtin typeset -f'
+	i_alias[nalias]=hash; b_alias[nalias++]='\\builtin alias -t'
+	i_alias[nalias]=history; b_alias[nalias++]='\\builtin fc -l'
+	i_alias[nalias]=integer; b_alias[nalias++]='\\builtin typeset -i'
+	i_alias[nalias]=local; b_alias[nalias++]='\\builtin typeset'
+	i_alias[nalias]=login; b_alias[nalias++]='\\builtin exec login'
+	i_alias[nalias]=nameref; b_alias[nalias++]='\\builtin typeset -n'
+	i_alias[nalias]=nohup; b_alias[nalias++]='nohup '
+	i_alias[nalias]=r; b_alias[nalias++]='\\builtin fc -e -'
+	i_alias[nalias]=type; b_alias[nalias++]='\\builtin whence -v'
+
+	# accumulate mksh built-in utilities, in definition order, even ifndef
+	i_func[nfunc++]=.
+	i_func[nfunc++]=:
+	i_func[nfunc++]='['
+	i_func[nfunc++]=alias
+	i_func[nfunc++]=break
+	# \\builtin cannot, by design, be overridden
+	i_func[nfunc++]=builtin
+	i_func[nfunc++]=cat
+	i_func[nfunc++]=cd
+	i_func[nfunc++]=chdir
+	i_func[nfunc++]=command
+	i_func[nfunc++]=continue
+	i_func[nfunc++]=echo
+	i_func[nfunc++]=eval
+	i_func[nfunc++]=exec
+	i_func[nfunc++]=exit
+	i_func[nfunc++]=export
+	i_func[nfunc++]=false
+	i_func[nfunc++]=fc
+	i_func[nfunc++]=getopts
+	i_func[nfunc++]=jobs
+	i_func[nfunc++]=kill
+	i_func[nfunc++]=let
+	i_func[nfunc++]=print
+	i_func[nfunc++]=pwd
+	i_func[nfunc++]=read
+	i_func[nfunc++]=readonly
+	i_func[nfunc++]=realpath
+	i_func[nfunc++]=rename
+	i_func[nfunc++]=return
+	i_func[nfunc++]=set
+	i_func[nfunc++]=shift
+	i_func[nfunc++]=source
+	i_func[nfunc++]=suspend
+	i_func[nfunc++]=test
+	i_func[nfunc++]=times
+	i_func[nfunc++]=trap
+	i_func[nfunc++]=true
+	i_func[nfunc++]=typeset
+	i_func[nfunc++]=ulimit
+	i_func[nfunc++]=umask
+	i_func[nfunc++]=unalias
+	i_func[nfunc++]=unset
+	i_func[nfunc++]=wait
+	i_func[nfunc++]=whence
+	i_func[nfunc++]=bg
+	i_func[nfunc++]=fg
+	i_func[nfunc++]=bind
+	i_func[nfunc++]=mknod
+	i_func[nfunc++]=printf
+	i_func[nfunc++]=sleep
+	i_func[nfunc++]=domainname
+	i_func[nfunc++]=extproc
+
+	# accumulate aliases from dot.mkshrc, in definition order
+	i_alias[nalias]=l; b_alias[nalias++]='ls -F'
+	i_alias[nalias]=la; b_alias[nalias++]='l -a'
+	i_alias[nalias]=ll; b_alias[nalias++]='l -l'
+	i_alias[nalias]=lo; b_alias[nalias++]='l -alo'
+	i_alias[nalias]=doch; b_alias[nalias++]='sudo mksh -c "$(\\builtin fc -ln -1)"'
+	i_alias[nalias]=rot13; b_alias[nalias++]='tr abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
+	i_alias[nalias]=cls; b_alias[nalias++]='\\builtin print -n \\ec'
+
+	# accumulate functions from dot.mkshrc, in definition order
+	i_func[nfunc++]=setenv
+	i_func[nfunc++]=smores
+	i_func[nfunc++]=hd
+	i_func[nfunc++]=hd_mksh
+	i_func[nfunc++]=which
+	i_func[nfunc++]=chpwd
+	i_func[nfunc++]=cd
+	i_func[nfunc++]=cd_csh
+	i_func[nfunc++]=dirs
+	i_func[nfunc++]=popd
+	i_func[nfunc++]=pushd
+	i_func[nfunc++]=Lb64decode
+	i_func[nfunc++]=Lb64encode
+	i_func[nfunc++]=Lbafh_init
+	i_func[nfunc++]=Lbafh_add
+	i_func[nfunc++]=Lbafh_finish
+	i_func[nfunc++]=Lstripcom
+	i_func[nfunc++]=enable
+
+	# collect all identifiers, sorted ASCIIbetically
+	\\builtin set -sA i_all -- "${i_alias[@]}" "${i_func[@]}"
+
+	# handle options, we don't do dynamic loading
+	while \\builtin getopts "adf:nps" x; do
+		case $x {
+		(a)
+			mode=-1
+			;;
+		(d)
+			# deliberately causing an error, like bash-static
+			;|
+		(f)
+			\\builtin print -ru2 enable: dynamic loading not available
+			\\builtin return 2
+			;;
+		(n)
+			mode=0
+			;;
+		(p)
+			doprnt=1
+			;;
+		(s)
+			\\builtin set -sA i_all -- . : break continue eval \
+			    exec exit export readonly return set shift times \
+			    trap unset
+			;;
+		(*)
+			\\builtin print -ru2 enable: usage: \
+			    "enable [-adnps] [-f filename] [name ...]"
+			return 2
+			;;
+		}
+	done
+	\\builtin shift $((OPTIND - 1))
+
+	# display builtins enabled/disabled/all/special?
+	if (( doprnt || ($# == 0) )); then
+		for x in "${i_all[@]}"; do
+			y=$(\\builtin alias "$x") || y=
+			[[ $y = "$x='\\\\builtin whence -p $x >/dev/null || (\\\\builtin print -r mksh: $x: not found; \\\\builtin exit 127) && \$(\\\\builtin whence -p $x)'" ]]; z=$?
+			case $mode:$z {
+			(-1:0|0:0)
+				\\builtin print -r -- "enable -n $x"
+				;;
+			(-1:1|1:1)
+				\\builtin print -r -- "enable $x"
+				;;
+			}
+		done
+		\\builtin return 0
+	fi
+
+	for x in "$@"; do
+		z=0
+		for y in "${i_alias[@]}" "${i_func[@]}"; do
+			[[ $x = "$y" ]] || \\builtin continue
+			z=1
+			\\builtin break
+		done
+		if (( !z )); then
+			\\builtin print -ru2 enable: "$x": not a shell builtin
+			rv=1
+			\\builtin continue
+		fi
+		if (( !mode )); then
+			# disable this
+			\\builtin alias "$x=\\\\builtin whence -p $x >/dev/null || (\\\\builtin print -r mksh: $x: not found; \\\\builtin exit 127) && \$(\\\\builtin whence -p $x)"
+		else
+			# find out if this is an alias or not, first
+			z=0
+			y=-1
+			while (( ++y < nalias )); do
+				[[ $x = "${i_alias[y]}" ]] || \\builtin continue
+				z=1
+				\\builtin break
+			done
+			if (( z )); then
+				# re-enable the original alias body
+				\\builtin alias "$x=${b_alias[y]}"
+			else
+				# re-enable the original utility/function
+				\\builtin unalias "$x"
+			fi
+		fi
+	done
+	\\builtin return $rv
+}
+
+\: place customisations below this line
+
+# some defaults / samples which you are supposed to adjust to your
+# liking; by default we add ~/.etc/bin and ~/bin (whichever exist)
+# to $PATH, set $SHELL to mksh, set some defaults for man and less
+# and show a few more possible things for users to begin moving in
+
+for p in ~/.etc/bin ~/bin; do
+	[[ -d $p/. ]] || \\builtin continue
+	[[ $PATHSEP$PATH$PATHSEP = *"$PATHSEP$p$PATHSEP"* ]] || \
+	    PATH=$p$PATHSEP$PATH
+done
+
+\\builtin export SHELL=$MKSH MANWIDTH=80 LESSHISTFILE=-
+\\builtin alias cls='\\builtin print -n \\ec'
+
+#\\builtin unset LC_ADDRESS LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+#    LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+#    LC_TELEPHONE LC_TIME LANGUAGE LANG LC_ALL
+#p=en_GB.UTF-8
+#\\builtin export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
+#\\builtin export LANG=C.UTF-8 LC_CTYPE=C.UTF-8
+#\\builtin export LC_ALL=C.UTF-8
+#\\builtin set -U
+#[[ ${LC_ALL:-${LC_CTYPE:-${LANG:-}}} = *[Uu][Tt][Ff]?(-)8* ]] || \\builtin set +U
+
+\\builtin unset p
+
+set -o vi
+
+[ -r $MKSHDIR/mkshfunc ] && source $MKSHDIR/mkshfunc
+[ -r $MKSHDIR/mkshalias ] && source $MKSHDIR/mkshalias
+
+HISTFILE="$MKSHDIR"/history
+
+\: place customisations above this line