Home | History | Annotate | Download | only in src 
      1 # $Id$
      2 # $MirOS: src/bin/mksh/dot.mkshrc,v 1.77 2013/02/17 15:58:26 tg Exp $
      3 #-
      4 # Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
      5 #		2011, 2012, 2013
      6 #	Thorsten Glaser <tg (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 # ${ENV:-~/.mkshrc}: mksh initialisation file for interactive shells
     24 
     25 PS1='#'; (( USER_ID )) && PS1='$'; [[ ${HOSTNAME:=$(ulimit -c 0; hostname -s \
     26     2>/dev/null)} = *([	 ]|localhost) ]] && HOSTNAME=$(ulimit -c 0; hostname \
     27     2>/dev/null); : ${EDITOR:=/bin/ed} ${HOSTNAME:=nil} ${TERM:=vt100}
     28 function precmd {
     29 	local e=$?
     30 
     31 	(( e )) && print -n "$e|"
     32 	# precmd is required to retain the errorlevel when ${ ;} is used
     33 	return $e
     34 }
     35 PS1=$'\001\r''${ precmd;}${USER:=$(ulimit -c 0; id -un 2>/dev/null || echo \?
     36 	)}@${HOSTNAME%%.*}:${ local e=$? d=${PWD:-?} p=~; [[ $p = ?(*/) ]] || \
     37 	d=${d/#$p/~}; local m=${%d} n p=...; (( m > 0 )) || m=${#d}
     38 	(( m > (n = (COLUMNS/3 < 7 ? 7 : COLUMNS/3)) )) && d=${d:(-n)} || \
     39 	p=; print -nr -- "$p$d"; return $e;} '"$PS1 "
     40 : ${MKSH:=$(whence -p mksh)}; export EDITOR HOSTNAME MKSH TERM USER
     41 alias ls=ls
     42 unalias ls
     43 alias l='ls -F'
     44 alias la='l -a'
     45 alias ll='l -l'
     46 alias lo='l -alo'
     47 whence -p rot13 >/dev/null || alias rot13='tr \
     48     abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ \
     49     nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
     50 whence -p hd >/dev/null || function hd {
     51 	hexdump -e '"%08.8_ax  " 8/1 "%02X " " - " 8/1 "%02X "' \
     52 	    -e '"  |" "%_p"' -e '"|\n"' "$@"
     53 }
     54 
     55 # Berkeley C shell compatible dirs, popd, and pushd functions
     56 # Z shell compatible chpwd() hook, used to update DIRSTACK[0]
     57 DIRSTACKBASE=$(realpath ~/. 2>/dev/null || print -nr -- "${HOME:-/}")
     58 set -A DIRSTACK
     59 function chpwd {
     60 	DIRSTACK[0]=$(realpath . 2>/dev/null || print -r -- "$PWD")
     61 	[[ $DIRSTACKBASE = ?(*/) ]] || \
     62 	    DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/~}
     63 	:
     64 }
     65 chpwd .
     66 function cd {
     67 	builtin cd "$@"
     68 	chpwd "$@"
     69 }
     70 function cd_csh {
     71 	local d t=${1/#~/$DIRSTACKBASE}
     72 
     73 	if ! d=$(builtin cd "$t" 2>&1); then
     74 		print -u2 "${1}: ${d##*$t - }."
     75 		return 1
     76 	fi
     77 	cd "$t"
     78 }
     79 function dirs {
     80 	local d dwidth
     81 	local -i fl=0 fv=0 fn=0 cpos=0
     82 
     83 	while getopts ":lvn" d; do
     84 		case $d {
     85 		(l)	fl=1 ;;
     86 		(v)	fv=1 ;;
     87 		(n)	fn=1 ;;
     88 		(*)	print -u2 'Usage: dirs [-lvn].'
     89 			return 1 ;;
     90 		}
     91 	done
     92 	shift $((OPTIND - 1))
     93 	if (( $# > 0 )); then
     94 		print -u2 'Usage: dirs [-lvn].'
     95 		return 1
     96 	fi
     97 	if (( fv )); then
     98 		fv=0
     99 		while (( fv < ${#DIRSTACK[*]} )); do
    100 			d=${DIRSTACK[fv]}
    101 			(( fl )) && d=${d/#~/$DIRSTACKBASE}
    102 			print -r -- "$fv	$d"
    103 			let fv++
    104 		done
    105 	else
    106 		fv=0
    107 		while (( fv < ${#DIRSTACK[*]} )); do
    108 			d=${DIRSTACK[fv]}
    109 			(( fl )) && d=${d/#~/$DIRSTACKBASE}
    110 			(( dwidth = (${%d} > 0 ? ${%d} : ${#d}) ))
    111 			if (( fn && (cpos += dwidth + 1) >= 79 && \
    112 			    dwidth < 80 )); then
    113 				print
    114 				(( cpos = dwidth + 1 ))
    115 			fi
    116 			print -nr -- "$d "
    117 			let fv++
    118 		done
    119 		print
    120 	fi
    121 	return 0
    122 }
    123 function popd {
    124 	local d fa
    125 	local -i n=1
    126 
    127 	while getopts ":0123456789lvn" d; do
    128 		case $d {
    129 		(l|v|n)	fa+=" -$d" ;;
    130 		(+*)	n=2
    131 			break ;;
    132 		(*)	print -u2 'Usage: popd [-lvn] [+<n>].'
    133 			return 1 ;;
    134 		}
    135 	done
    136 	shift $((OPTIND - n))
    137 	n=0
    138 	if (( $# > 1 )); then
    139 		print -u2 popd: Too many arguments.
    140 		return 1
    141 	elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
    142 		if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
    143 			print -u2 popd: Directory stack not that deep.
    144 			return 1
    145 		fi
    146 	elif [[ -n $1 ]]; then
    147 		print -u2 popd: Bad directory.
    148 		return 1
    149 	fi
    150 	if (( ${#DIRSTACK[*]} < 2 )); then
    151 		print -u2 popd: Directory stack empty.
    152 		return 1
    153 	fi
    154 	unset DIRSTACK[n]
    155 	set -A DIRSTACK -- "${DIRSTACK[@]}"
    156 	cd_csh "${DIRSTACK[0]}" || return 1
    157 	dirs $fa
    158 }
    159 function pushd {
    160 	local d fa
    161 	local -i n=1
    162 
    163 	while getopts ":0123456789lvn" d; do
    164 		case $d {
    165 		(l|v|n)	fa+=" -$d" ;;
    166 		(+*)	n=2
    167 			break ;;
    168 		(*)	print -u2 'Usage: pushd [-lvn] [<dir>|+<n>].'
    169 			return 1 ;;
    170 		}
    171 	done
    172 	shift $((OPTIND - n))
    173 	if (( $# == 0 )); then
    174 		if (( ${#DIRSTACK[*]} < 2 )); then
    175 			print -u2 pushd: No other directory.
    176 			return 1
    177 		fi
    178 		d=${DIRSTACK[1]}
    179 		DIRSTACK[1]=${DIRSTACK[0]}
    180 		cd_csh "$d" || return 1
    181 	elif (( $# > 1 )); then
    182 		print -u2 pushd: Too many arguments.
    183 		return 1
    184 	elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
    185 		if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
    186 			print -u2 pushd: Directory stack not that deep.
    187 			return 1
    188 		fi
    189 		while (( n-- )); do
    190 			d=${DIRSTACK[0]}
    191 			unset DIRSTACK[0]
    192 			set -A DIRSTACK -- "${DIRSTACK[@]}" "$d"
    193 		done
    194 		cd_csh "${DIRSTACK[0]}" || return 1
    195 	else
    196 		set -A DIRSTACK -- placeholder "${DIRSTACK[@]}"
    197 		cd_csh "$1" || return 1
    198 	fi
    199 	dirs $fa
    200 }
    201 
    202 # pager (not control character safe)
    203 function smores {
    204 	local dummy line llen curlin=0
    205 
    206 	cat "$@" | while IFS= read -r line; do
    207 		llen=${%line}
    208 		(( llen == -1 )) && llen=${#line}
    209 		(( llen = llen ? (llen + COLUMNS - 1) / COLUMNS : 1 ))
    210 		if (( (curlin += llen) >= LINES )); then
    211 			print -n -- '\033[7m--more--\033[0m'
    212 			read -u1 dummy
    213 			[[ $dummy = [Qq]* ]] && return 0
    214 			curlin=$llen
    215 		fi
    216 		print -r -- "$line"
    217 	done
    218 }
    219 
    220 # base64 encoder and decoder, RFC compliant, NUL safe
    221 function Lb64decode {
    222 	[[ -o utf8-mode ]]; local u=$?
    223 	set +U
    224 	local c s="$*" t=
    225 	[[ -n $s ]] || { s=$(cat;print x); s=${s%x}; }
    226 	local -i i=0 j=0 n=${#s} p=0 v x
    227 	local -i16 o
    228 
    229 	while (( i < n )); do
    230 		c=${s:(i++):1}
    231 		case $c {
    232 		(=)	break ;;
    233 		([A-Z])	(( v = 1#$c - 65 )) ;;
    234 		([a-z])	(( v = 1#$c - 71 )) ;;
    235 		([0-9])	(( v = 1#$c + 4 )) ;;
    236 		(+)	v=62 ;;
    237 		(/)	v=63 ;;
    238 		(*)	continue ;;
    239 		}
    240 		(( x = (x << 6) | v ))
    241 		case $((p++)) {
    242 		(0)	continue ;;
    243 		(1)	(( o = (x >> 4) & 255 )) ;;
    244 		(2)	(( o = (x >> 2) & 255 )) ;;
    245 		(3)	(( o = x & 255 ))
    246 			p=0
    247 			;;
    248 		}
    249 		t+=\\x${o#16#}
    250 		(( ++j & 4095 )) && continue
    251 		print -n $t
    252 		t=
    253 	done
    254 	print -n $t
    255 	(( u )) || set -U
    256 }
    257 
    258 set -A Lb64encode_code -- A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \
    259     a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 + /
    260 function Lb64encode {
    261 	[[ -o utf8-mode ]]; local u=$?
    262 	set +U
    263 	local c s t
    264 	if (( $# )); then
    265 		read -raN-1 s <<<"$*"
    266 		unset s[${#s[*]}-1]
    267 	else
    268 		read -raN-1 s
    269 	fi
    270 	local -i i=0 n=${#s[*]} j v
    271 
    272 	while (( i < n )); do
    273 		(( v = s[i++] << 16 ))
    274 		(( j = i < n ? s[i++] : 0 ))
    275 		(( v |= j << 8 ))
    276 		(( j = i < n ? s[i++] : 0 ))
    277 		(( v |= j ))
    278 		t+=${Lb64encode_code[v >> 18]}${Lb64encode_code[v >> 12 & 63]}
    279 		c=${Lb64encode_code[v >> 6 & 63]}
    280 		if (( i <= n )); then
    281 			t+=$c${Lb64encode_code[v & 63]}
    282 		elif (( i == n + 1 )); then
    283 			t+=$c=
    284 		else
    285 			t+===
    286 		fi
    287 		if (( ${#t} == 76 || i >= n )); then
    288 			print $t
    289 			t=
    290 		fi
    291 	done
    292 	(( u )) || set -U
    293 }
    294 
    295 # mksh NUL counting, never zero
    296 typeset -Z11 -Uui16 Lnzathash_v
    297 function Lnzathash_add {
    298 	[[ -o utf8-mode ]]; local u=$?
    299 	set +U
    300 	local s
    301 	if (( $# )); then
    302 		read -raN-1 s <<<"$*"
    303 		unset s[${#s[*]}-1]
    304 	else
    305 		read -raN-1 s
    306 	fi
    307 	local -i i=0 n=${#s[*]}
    308 
    309 	while (( i < n )); do
    310 		((# Lnzathash_v = (Lnzathash_v + s[i++] + 1) * 1025 ))
    311 		((# Lnzathash_v ^= Lnzathash_v >> 6 ))
    312 	done
    313 
    314 	(( u )) || set -U
    315 }
    316 function Lnzaathash_end {
    317 	((# Lnzathash_v *= 1025 ))
    318 	((# Lnzathash_v ^= Lnzathash_v >> 6 ))
    319 	((# Lnzathash_v += Lnzathash_v << 3 ))
    320 	((# Lnzathash_v = (Lnzathash_v ^
    321 	    (Lnzathash_v >> 11)) * 32769 ))
    322 	print ${Lnzathash_v#16#}
    323 }
    324 function Lnzaathash {
    325 	Lnzathash_v=0
    326 	Lnzathash_add "$@"
    327 	Lnzaathash_end
    328 }
    329 function Lnzathash {
    330 	Lnzathash_v=0
    331 	Lnzathash_add "$@"
    332 	Lnzathash_end
    333 }
    334 function Lnzathash_end {
    335 	if (( Lnzathash_v )); then
    336 		Lnzaathash_end
    337 	else
    338 		Lnzathash_v=1
    339 		print ${Lnzathash_v#16#}
    340 	fi
    341 }
    342 
    343 # strip comments (and leading/trailing whitespace if IFS is set) from
    344 # any file(s) given as argument, or stdin if none, and spew to stdout
    345 function Lstripcom {
    346 	cat "$@" | { set -o noglob; while read _line; do
    347 		_line=${_line%%#*}
    348 		[[ -n $_line ]] && print -r -- $_line
    349 	done; }
    350 }
    351 
    352 # give MidnightBSD's laffer1 a bit of csh feeling
    353 function setenv {
    354 	eval export "\"$1\""'="$2"'
    355 }
    356 
    357 : place customisations below this line
    358 
    359 for p in ~/.etc/bin ~/bin; do
    360 	[[ -d $p/. ]] || continue
    361 	[[ :$PATH: = *:$p:* ]] || PATH=$p:$PATH
    362 done
    363 
    364 export SHELL=$MKSH MANWIDTH=80 LESSHISTFILE=-
    365 alias cls='print -n \\033c'
    366 
    367 #unset LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_IDENTIFICATION LC_MONETARY \
    368 #    LC_NAME LC_NUMERIC LC_TELEPHONE LC_TIME
    369 #p=en_GB.UTF-8
    370 #set -U
    371 #export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
    372 
    373 unset p
    374 
    375 : place customisations above this line
    376