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      1 # $Id$
      2 # $MirOS: src/bin/mksh/dot.mkshrc,v 1.104 2015/12/31 21:00:12 tg Exp $
      3 #-
      4 # Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
      5 #		2011, 2012, 2013, 2014, 2015
      6 #	mirabilos <m (a] mirbsd.org>
      7 #
      8 # Provided that these terms and disclaimer and all copyright notices
      9 # are retained or reproduced in an accompanying document, permission
     10 # is granted to deal in this work without restriction, including un-
     11 # limited rights to use, publicly perform, distribute, sell, modify,
     12 # merge, give away, or sublicence.
     13 #
     14 # This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
     15 # the utmost extent permitted by applicable law, neither express nor
     16 # implied; without malicious intent or gross negligence. In no event
     17 # may a licensor, author or contributor be held liable for indirect,
     18 # direct, other damage, loss, or other issues arising in any way out
     19 # of dealing in the work, even if advised of the possibility of such
     20 # damage or existence of a defect, except proven that it results out
     21 # of said person's immediate fault when using the work as intended.
     22 #-
     23 # ${ENV:-~/.mkshrc}: mksh initialisation file for interactive shells
     24 
     25 # catch non-mksh (including lksh) trying to run this file
     26 case ${KSH_VERSION:-} in
     27 *MIRBSD\ KSH*) ;;
     28 *) return 0 ;;
     29 esac
     30 
     31 PS1='#'; (( USER_ID )) && PS1='$'; \: "${TERM:=vt100}${HOSTNAME:=$(\ulimit -c \
     32     0; hostname 2>/dev/null)}${EDITOR:=/bin/ed}${USER:=$(\ulimit -c 0; id -un \
     33     2>/dev/null || \echo \?)}${MKSH:=$(\builtin whence -p mksh)}"
     34 HOSTNAME=${HOSTNAME%%*([	 ]).*}; HOSTNAME=${HOSTNAME##*([	 ])}
     35 [[ $HOSTNAME = ?(ip6-)localhost?(6) ]] && HOSTNAME=
     36 \: "${HOSTNAME:=nil}${MKSH:=/bin/mksh}"; \export EDITOR HOSTNAME MKSH TERM USER
     37 PS4='[$EPOCHREALTIME] '; PS1=$'\001\r''${|
     38 	\typeset e=$?
     39 
     40 	(( e )) && REPLY+="$e|"
     41 	REPLY+=${USER}@${HOSTNAME%%.*}:
     42 
     43 	\typeset d=${PWD:-?} p=~; [[ $p = ?(*/) ]] || d=${d/#$p/\~}
     44 	\typeset m=${%d} n p=...; (( m > 0 )) || m=${#d}
     45 	(( m > (n = (COLUMNS/3 < 7 ? 7 : COLUMNS/3)) )) && d=${d:(-n)} || p=
     46 	REPLY+=$p$d
     47 
     48 	\return $e
     49 } '"$PS1 "
     50 \alias ls=ls
     51 \unalias ls
     52 \alias l='ls -F'
     53 \alias la='l -a'
     54 \alias ll='l -l'
     55 \alias lo='l -alo'
     56 \alias doch='sudo mksh -c "$(\builtin fc -ln -1)"'
     57 \command -v rot13 >/dev/null || \alias rot13='tr \
     58     abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ \
     59     nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
     60 if \command -v hd >/dev/null; then \:; elif \command -v hexdump >/dev/null; then
     61 	function hd {
     62 		hexdump -e '"%08.8_ax  " 8/1 "%02X " " - " 8/1 "%02X "' \
     63 		    -e '"  |" "%_p"' -e '"|\n"' "$@"
     64 	}
     65 else
     66 	function hd {
     67 		\typeset -Uui16 -Z11 pos=0
     68 		\typeset -Uui16 -Z5 hv=2147483647
     69 		\typeset dasc line i
     70 		\set +U
     71 
     72 		\cat "$@" | if \read -arN -1 line; then
     73 			\typeset -i1 'line[*]'
     74 			i=0
     75 			while (( i < ${#line[*]} )); do
     76 				hv=${line[i++]}
     77 				if (( (pos & 15) == 0 )); then
     78 					(( pos )) && \
     79 					    \builtin print -r -- "$dasc|"
     80 					\builtin print -n "${pos#16#}  "
     81 					dasc=' |'
     82 				fi
     83 				\builtin print -n "${hv#16#} "
     84 				#XXX EBCDIC, but we need [[:print:]] to fix this
     85 				if (( (hv < 32) || (hv > 126) )); then
     86 					dasc+=.
     87 				else
     88 					dasc+=${line[i-1]#1#}
     89 				fi
     90 				(( (pos++ & 15) == 7 )) && \
     91 				    \builtin print -n -- '- '
     92 			done
     93 			while (( pos & 15 )); do
     94 				\builtin print -n '   '
     95 				(( (pos++ & 15) == 7 )) && \
     96 				    \builtin print -n -- '- '
     97 			done
     98 			(( hv == 2147483647 )) || \builtin print -r -- "$dasc|"
     99 		fi
    100 	}
    101 fi
    102 
    103 # Berkeley C shell compatible dirs, popd, and pushd functions
    104 # Z shell compatible chpwd() hook, used to update DIRSTACK[0]
    105 DIRSTACKBASE=$(\builtin realpath ~/. 2>/dev/null || \
    106     \builtin print -nr -- "${HOME:-/}")
    107 set -A DIRSTACK
    108 function chpwd {
    109 	DIRSTACK[0]=$(\builtin realpath . 2>/dev/null || \
    110 	    \builtin print -r -- "$PWD")
    111 	[[ $DIRSTACKBASE = ?(*/) ]] || \
    112 	    DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/\~}
    113 	\:
    114 }
    115 \chpwd .
    116 cd() {
    117 	\builtin cd "$@" || \return $?
    118 	\chpwd "$@"
    119 }
    120 function cd_csh {
    121 	\typeset d t=${1/#\~/$DIRSTACKBASE}
    122 
    123 	if ! d=$(\builtin cd "$t" 2>&1); then
    124 		\builtin print -u2 "${1}: ${d##*cd: $t: }."
    125 		\return 1
    126 	fi
    127 	\cd "$t"
    128 }
    129 function dirs {
    130 	\typeset d dwidth
    131 	\typeset -i fl=0 fv=0 fn=0 cpos=0
    132 
    133 	while \getopts ":lvn" d; do
    134 		case $d {
    135 		(l)	fl=1 ;;
    136 		(v)	fv=1 ;;
    137 		(n)	fn=1 ;;
    138 		(*)	\builtin print -u2 'Usage: dirs [-lvn].'
    139 			\return 1 ;;
    140 		}
    141 	done
    142 	\shift $((OPTIND - 1))
    143 	if (( $# > 0 )); then
    144 		\builtin print -u2 'Usage: dirs [-lvn].'
    145 		\return 1
    146 	fi
    147 	if (( fv )); then
    148 		fv=0
    149 		while (( fv < ${#DIRSTACK[*]} )); do
    150 			d=${DIRSTACK[fv]}
    151 			(( fl )) && d=${d/#\~/$DIRSTACKBASE}
    152 			\builtin print -r -- "$fv	$d"
    153 			\builtin let fv++
    154 		done
    155 	else
    156 		fv=0
    157 		while (( fv < ${#DIRSTACK[*]} )); do
    158 			d=${DIRSTACK[fv]}
    159 			(( fl )) && d=${d/#\~/$DIRSTACKBASE}
    160 			(( dwidth = (${%d} > 0 ? ${%d} : ${#d}) ))
    161 			if (( fn && (cpos += dwidth + 1) >= 79 && \
    162 			    dwidth < 80 )); then
    163 				\builtin print
    164 				(( cpos = dwidth + 1 ))
    165 			fi
    166 			\builtin print -nr -- "$d "
    167 			\builtin let fv++
    168 		done
    169 		\builtin print
    170 	fi
    171 	\return 0
    172 }
    173 function popd {
    174 	\typeset d fa
    175 	\typeset -i n=1
    176 
    177 	while \getopts ":0123456789lvn" d; do
    178 		case $d {
    179 		(l|v|n)	fa+=" -$d" ;;
    180 		(+*)	n=2
    181 			\break ;;
    182 		(*)	\builtin print -u2 'Usage: popd [-lvn] [+<n>].'
    183 			\return 1 ;;
    184 		}
    185 	done
    186 	\shift $((OPTIND - n))
    187 	n=0
    188 	if (( $# > 1 )); then
    189 		\builtin print -u2 popd: Too many arguments.
    190 		\return 1
    191 	elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
    192 		if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
    193 			\builtin print -u2 popd: Directory stack not that deep.
    194 			\return 1
    195 		fi
    196 	elif [[ -n $1 ]]; then
    197 		\builtin print -u2 popd: Bad directory.
    198 		\return 1
    199 	fi
    200 	if (( ${#DIRSTACK[*]} < 2 )); then
    201 		\builtin print -u2 popd: Directory stack empty.
    202 		\return 1
    203 	fi
    204 	\unset DIRSTACK[n]
    205 	\set -A DIRSTACK -- "${DIRSTACK[@]}"
    206 	\cd_csh "${DIRSTACK[0]}" || \return 1
    207 	\dirs $fa
    208 }
    209 function pushd {
    210 	\typeset d fa
    211 	\typeset -i n=1
    212 
    213 	while \getopts ":0123456789lvn" d; do
    214 		case $d {
    215 		(l|v|n)	fa+=" -$d" ;;
    216 		(+*)	n=2
    217 			\break ;;
    218 		(*)	\builtin print -u2 'Usage: pushd [-lvn] [<dir>|+<n>].'
    219 			\return 1 ;;
    220 		}
    221 	done
    222 	\shift $((OPTIND - n))
    223 	if (( $# == 0 )); then
    224 		if (( ${#DIRSTACK[*]} < 2 )); then
    225 			\builtin print -u2 pushd: No other directory.
    226 			\return 1
    227 		fi
    228 		d=${DIRSTACK[1]}
    229 		DIRSTACK[1]=${DIRSTACK[0]}
    230 		\cd_csh "$d" || \return 1
    231 	elif (( $# > 1 )); then
    232 		\builtin print -u2 pushd: Too many arguments.
    233 		\return 1
    234 	elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
    235 		if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
    236 			\builtin print -u2 pushd: Directory stack not that deep.
    237 			\return 1
    238 		fi
    239 		while (( n-- )); do
    240 			d=${DIRSTACK[0]}
    241 			\unset DIRSTACK[0]
    242 			\set -A DIRSTACK -- "${DIRSTACK[@]}" "$d"
    243 		done
    244 		\cd_csh "${DIRSTACK[0]}" || \return 1
    245 	else
    246 		\set -A DIRSTACK -- placeholder "${DIRSTACK[@]}"
    247 		\cd_csh "$1" || \return 1
    248 	fi
    249 	\dirs $fa
    250 }
    251 
    252 # pager (not control character safe)
    253 function smores {
    254 	(
    255 		\set +m
    256 		\cat "$@" |&
    257 		\trap "rv=\$?; 'kill' $! >/dev/null 2>&1; 'exit' \$rv" EXIT
    258 		while IFS= \read -pr line; do
    259 			llen=${%line}
    260 			(( llen == -1 )) && llen=${#line}
    261 			(( llen = llen ? (llen + COLUMNS - 1) / COLUMNS : 1 ))
    262 			if (( (curlin += llen) >= LINES )); then
    263 				\builtin print -n -- '\e[7m--more--\e[0m'
    264 				\read -u1 || \exit $?
    265 				[[ $REPLY = [Qq]* ]] && \exit 0
    266 				curlin=$llen
    267 			fi
    268 			\builtin print -r -- "$line"
    269 		done
    270 	)
    271 }
    272 
    273 # base64 encoder and decoder, RFC compliant, NUL safe, not EBCDIC safe
    274 function Lb64decode {
    275 	\set +U
    276 	\typeset c s="$*" t
    277 	[[ -n $s ]] || { s=$(\cat; \builtin print x); s=${s%x}; }
    278 	\typeset -i i=0 j=0 n=${#s} p=0 v x
    279 	\typeset -i16 o
    280 
    281 	while (( i < n )); do
    282 		c=${s:(i++):1}
    283 		case $c {
    284 		(=)	\break ;;
    285 		([A-Z])	(( v = 1#$c - 65 )) ;;
    286 		([a-z])	(( v = 1#$c - 71 )) ;;
    287 		([0-9])	(( v = 1#$c + 4 )) ;;
    288 		(+)	v=62 ;;
    289 		(/)	v=63 ;;
    290 		(*)	\continue ;;
    291 		}
    292 		(( x = (x << 6) | v ))
    293 		case $((p++)) {
    294 		(0)	\continue ;;
    295 		(1)	(( o = (x >> 4) & 255 )) ;;
    296 		(2)	(( o = (x >> 2) & 255 )) ;;
    297 		(3)	(( o = x & 255 ))
    298 			p=0
    299 			;;
    300 		}
    301 		t+=\\x${o#16#}
    302 		(( ++j & 4095 )) && \continue
    303 		\builtin print -n $t
    304 		t=
    305 	done
    306 	\builtin print -n $t
    307 }
    308 
    309 \set -A Lb64encode_tbl -- 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 \
    310     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 + /
    311 function Lb64encode {
    312 	\set +U
    313 	\typeset c s t
    314 	if (( $# )); then
    315 		\read -raN-1 s <<<"$*"
    316 		\unset s[${#s[*]}-1]
    317 	else
    318 		\read -raN-1 s
    319 	fi
    320 	\typeset -i i=0 n=${#s[*]} j v
    321 
    322 	while (( i < n )); do
    323 		(( v = s[i++] << 16 ))
    324 		(( j = i < n ? s[i++] : 0 ))
    325 		(( v |= j << 8 ))
    326 		(( j = i < n ? s[i++] : 0 ))
    327 		(( v |= j ))
    328 		t+=${Lb64encode_tbl[v >> 18]}${Lb64encode_tbl[v >> 12 & 63]}
    329 		c=${Lb64encode_tbl[v >> 6 & 63]}
    330 		if (( i <= n )); then
    331 			t+=$c${Lb64encode_tbl[v & 63]}
    332 		elif (( i == n + 1 )); then
    333 			t+=$c=
    334 		else
    335 			t+===
    336 		fi
    337 		if (( ${#t} == 76 || i >= n )); then
    338 			\builtin print $t
    339 			t=
    340 		fi
    341 	done
    342 }
    343 
    344 # Better Avalanche for the Jenkins Hash
    345 \typeset -Z11 -Uui16 Lbafh_v
    346 function Lbafh_init {
    347 	Lbafh_v=0
    348 }
    349 function Lbafh_add {
    350 	\set +U
    351 	\typeset s
    352 	if (( $# )); then
    353 		\read -raN-1 s <<<"$*"
    354 		\unset s[${#s[*]}-1]
    355 	else
    356 		\read -raN-1 s
    357 	fi
    358 	\typeset -i i=0 n=${#s[*]}
    359 
    360 	while (( i < n )); do
    361 		((# Lbafh_v = (Lbafh_v + s[i++] + 1) * 1025 ))
    362 		((# Lbafh_v ^= Lbafh_v >> 6 ))
    363 	done
    364 }
    365 function Lbafh_finish {
    366 	\typeset -Ui t
    367 
    368 	((# t = (((Lbafh_v >> 7) & 0x01010101) * 0x1B) ^ \
    369 	    ((Lbafh_v << 1) & 0xFEFEFEFE) ))
    370 	((# Lbafh_v = t ^ (t >>> 8) ^ (Lbafh_v >>> 8) ^ \
    371 	    (Lbafh_v >>> 16) ^ (Lbafh_v >>> 24) ))
    372 	\:
    373 }
    374 
    375 # strip comments (and leading/trailing whitespace if IFS is set) from
    376 # any file(s) given as argument, or stdin if none, and spew to stdout
    377 function Lstripcom {
    378 	\set -o noglob
    379 	\cat "$@" | while \read _line; do
    380 		_line=${_line%%#*}
    381 		[[ -n $_line ]] && \builtin print -r -- $_line
    382 	done
    383 }
    384 
    385 # give MidnightBSD's laffer1 a bit of csh feeling
    386 function setenv {
    387 	if (( $# )); then
    388 		\eval '\export "$1"="${2:-}"'
    389 	else
    390 		\typeset -x
    391 	fi
    392 }
    393 
    394 # toggle built-in aliases and utilities, and aliases and functions from mkshrc
    395 function enable {
    396 	\typeset doprnt=0 mode=1 x y z rv=0
    397 	\typeset b_alias i_alias i_func nalias=0 nfunc=0 i_all
    398 	\set -A b_alias
    399 	\set -A i_alias
    400 	\set -A i_func
    401 
    402 	# accumulate mksh built-in aliases, in ASCIIbetical order
    403 	i_alias[nalias]=autoload; b_alias[nalias++]='\typeset -fu'
    404 	i_alias[nalias]=functions; b_alias[nalias++]='\typeset -f'
    405 	i_alias[nalias]=hash; b_alias[nalias++]='\builtin alias -t'
    406 	i_alias[nalias]=history; b_alias[nalias++]='\builtin fc -l'
    407 	i_alias[nalias]=integer; b_alias[nalias++]='\typeset -i'
    408 	i_alias[nalias]=local; b_alias[nalias++]='\typeset'
    409 	i_alias[nalias]=login; b_alias[nalias++]='\exec login'
    410 	i_alias[nalias]=nameref; b_alias[nalias++]='\typeset -n'
    411 	i_alias[nalias]=nohup; b_alias[nalias++]='nohup '
    412 	i_alias[nalias]=r; b_alias[nalias++]='\builtin fc -e -'
    413 	i_alias[nalias]=type; b_alias[nalias++]='\builtin whence -v'
    414 
    415 	# accumulate mksh built-in utilities, in definition order, even ifndef
    416 	i_func[nfunc++]=.
    417 	i_func[nfunc++]=:
    418 	i_func[nfunc++]='['
    419 	i_func[nfunc++]=alias
    420 	i_func[nfunc++]=break
    421 	i_func[nfunc++]=builtin
    422 	i_func[nfunc++]=cat
    423 	i_func[nfunc++]=cd
    424 	i_func[nfunc++]=chdir
    425 	i_func[nfunc++]=command
    426 	i_func[nfunc++]=continue
    427 	i_func[nfunc++]=echo
    428 	i_func[nfunc++]=eval
    429 	i_func[nfunc++]=exec
    430 	i_func[nfunc++]=exit
    431 	i_func[nfunc++]=export
    432 	i_func[nfunc++]=false
    433 	i_func[nfunc++]=fc
    434 	i_func[nfunc++]=getopts
    435 	i_func[nfunc++]=global
    436 	i_func[nfunc++]=jobs
    437 	i_func[nfunc++]=kill
    438 	i_func[nfunc++]=let
    439 	i_func[nfunc++]='let]'
    440 	i_func[nfunc++]=print
    441 	i_func[nfunc++]=pwd
    442 	i_func[nfunc++]=read
    443 	i_func[nfunc++]=readonly
    444 	i_func[nfunc++]=realpath
    445 	i_func[nfunc++]=rename
    446 	i_func[nfunc++]=return
    447 	i_func[nfunc++]=set
    448 	i_func[nfunc++]=shift
    449 	i_func[nfunc++]=source
    450 	i_func[nfunc++]=suspend
    451 	i_func[nfunc++]=test
    452 	i_func[nfunc++]=times
    453 	i_func[nfunc++]=trap
    454 	i_func[nfunc++]=true
    455 	i_func[nfunc++]=typeset
    456 	i_func[nfunc++]=ulimit
    457 	i_func[nfunc++]=umask
    458 	i_func[nfunc++]=unalias
    459 	i_func[nfunc++]=unset
    460 	i_func[nfunc++]=wait
    461 	i_func[nfunc++]=whence
    462 	i_func[nfunc++]=bg
    463 	i_func[nfunc++]=fg
    464 	i_func[nfunc++]=bind
    465 	i_func[nfunc++]=mknod
    466 	i_func[nfunc++]=printf
    467 	i_func[nfunc++]=sleep
    468 	i_func[nfunc++]=domainname
    469 	i_func[nfunc++]=extproc
    470 
    471 	# accumulate aliases from dot.mkshrc, in definition order
    472 	i_alias[nalias]=l; b_alias[nalias++]='ls -F'
    473 	i_alias[nalias]=la; b_alias[nalias++]='l -a'
    474 	i_alias[nalias]=ll; b_alias[nalias++]='l -l'
    475 	i_alias[nalias]=lo; b_alias[nalias++]='l -alo'
    476 	i_alias[nalias]=doch; b_alias[nalias++]='sudo mksh -c "$(\builtin fc -ln -1)"'
    477 	i_alias[nalias]=rot13; b_alias[nalias++]='tr abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
    478 	i_alias[nalias]=cls; b_alias[nalias++]='\builtin print -n \\ec'
    479 
    480 	# accumulate functions from dot.mkshrc, in definition order
    481 	i_func[nfunc++]=hd
    482 	i_func[nfunc++]=chpwd
    483 	i_func[nfunc++]=cd_csh
    484 	i_func[nfunc++]=dirs
    485 	i_func[nfunc++]=popd
    486 	i_func[nfunc++]=pushd
    487 	i_func[nfunc++]=smores
    488 	i_func[nfunc++]=Lb64decode
    489 	i_func[nfunc++]=Lb64encode
    490 	i_func[nfunc++]=Lbafh_init
    491 	i_func[nfunc++]=Lbafh_add
    492 	i_func[nfunc++]=Lbafh_finish
    493 	i_func[nfunc++]=Lstripcom
    494 	i_func[nfunc++]=setenv
    495 	i_func[nfunc++]=enable
    496 
    497 	# collect all identifiers, sorted ASCIIbetically
    498 	\set -sA i_all -- "${i_alias[@]}" "${i_func[@]}"
    499 
    500 	# handle options, we don't do dynamic loading
    501 	while \getopts "adf:nps" x; do
    502 		case $x {
    503 		(a)
    504 			mode=-1
    505 			;;
    506 		(d)
    507 			# deliberately causing an error, like bash-static
    508 			;|
    509 		(f)
    510 			\builtin print -u2 enable: dynamic loading not available
    511 			\return 2
    512 			;;
    513 		(n)
    514 			mode=0
    515 			;;
    516 		(p)
    517 			doprnt=1
    518 			;;
    519 		(s)
    520 			\set -sA i_all -- . : break continue eval exec exit \
    521 			    export readonly return set shift times trap unset
    522 			;;
    523 		(*)
    524 			\builtin print -u2 enable: usage: \
    525 			    "enable [-adnps] [-f filename] [name ...]"
    526 			return 2
    527 			;;
    528 		}
    529 	done
    530 	\shift $((OPTIND - 1))
    531 
    532 	# display builtins enabled/disabled/all/special?
    533 	if (( doprnt || ($# == 0) )); then
    534 		for x in "${i_all[@]}"; do
    535 			y=$(\alias "$x") || y=
    536 			[[ $y = "$x='\\builtin whence -p $x >/dev/null || (\\builtin print mksh: $x: not found; exit 127) && \$(\\builtin whence -p $x)'" ]]; z=$?
    537 			case $mode:$z {
    538 			(-1:0|0:0)
    539 				\print -r -- "enable -n $x"
    540 				;;
    541 			(-1:1|1:1)
    542 				\print -r -- "enable $x"
    543 				;;
    544 			}
    545 		done
    546 		\return 0
    547 	fi
    548 
    549 	for x in "$@"; do
    550 		z=0
    551 		for y in "${i_alias[@]}" "${i_func[@]}"; do
    552 			[[ $x = "$y" ]] || \continue
    553 			z=1
    554 			\break
    555 		done
    556 		if (( !z )); then
    557 			\builtin print -ru2 enable: "$x": not a shell builtin
    558 			rv=1
    559 			\continue
    560 		fi
    561 		if (( !mode )); then
    562 			# disable this
    563 			\alias "$x=\\builtin whence -p $x >/dev/null || (\\builtin print mksh: $x: not found; exit 127) && \$(\\builtin whence -p $x)"
    564 		else
    565 			# find out if this is an alias or not, first
    566 			z=0
    567 			y=-1
    568 			while (( ++y < nalias )); do
    569 				[[ $x = "${i_alias[y]}" ]] || \continue
    570 				z=1
    571 				\break
    572 			done
    573 			if (( z )); then
    574 				# re-enable the original alias body
    575 				\alias "$x=${b_alias[y]}"
    576 			else
    577 				# re-enable the original utility/function
    578 				\unalias "$x"
    579 			fi
    580 		fi
    581 	done
    582 	\return $rv
    583 }
    584 
    585 \: place customisations below this line
    586 
    587 for p in ~/.etc/bin ~/bin; do
    588 	[[ -d $p/. ]] || \continue
    589 	#XXX OS/2
    590 	[[ :$PATH: = *:$p:* ]] || PATH=$p:$PATH
    591 done
    592 
    593 \export SHELL=$MKSH MANWIDTH=80 LESSHISTFILE=-
    594 \alias cls='\builtin print -n \\ec'
    595 
    596 #\unset LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_IDENTIFICATION LC_MONETARY \
    597 #    LC_NAME LC_NUMERIC LC_TELEPHONE LC_TIME
    598 #p=en_GB.UTF-8
    599 #\export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
    600 #\set -U
    601 
    602 \unset p
    603 
    604 \: place customisations above this line
    605