mksh/dot.mkshrc

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# $Id$
# $MirOS: src/bin/mksh/dot.mkshrc,v 1.77 2013/02/17 15:58:26 tg Exp $
#-
# Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012, 2013
# Thorsten Glaser <tg@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.
#-
# ${ENV:-~/.mkshrc}: mksh initialisation file for interactive shells
PS1='#'; (( USER_ID )) && PS1='$'; [[ ${HOSTNAME:=$(ulimit -c 0; hostname -s \
2>/dev/null)} = *([ ]|localhost) ]] && HOSTNAME=$(ulimit -c 0; hostname \
2>/dev/null); : ${EDITOR:=/bin/ed} ${HOSTNAME:=nil} ${TERM:=vt100}
function precmd {
local e=$?
(( e )) && print -n "$e|"
# precmd is required to retain the errorlevel when ${ …;} is used
return $e
}
PS1=$'\001\r''${ precmd;}${USER:=$(ulimit -c 0; id -un 2>/dev/null || echo \?
)}@${HOSTNAME%%.*}:${ local e=$? d=${PWD:-?} p=~; [[ $p = ?(*/) ]] || \
d=${d/#$p/~}; local m=${%d} n p=...; (( m > 0 )) || m=${#d}
(( m > (n = (COLUMNS/3 < 7 ? 7 : COLUMNS/3)) )) && d=${d:(-n)} || \
p=; print -nr -- "$p$d"; return $e;} '"$PS1 "
: ${MKSH:=$(whence -p mksh)}; export EDITOR HOSTNAME MKSH TERM USER
alias ls=ls
unalias ls
alias l='ls -F'
alias la='l -a'
alias ll='l -l'
alias lo='l -alo'
whence -p rot13 >/dev/null || alias rot13='tr \
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ \
nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
whence -p hd >/dev/null || function hd {
hexdump -e '"%08.8_ax " 8/1 "%02X " " - " 8/1 "%02X "' \
-e '" |" "%_p"' -e '"|\n"' "$@"
}
# Berkeley C shell compatible dirs, popd, and pushd functions
# Z shell compatible chpwd() hook, used to update DIRSTACK[0]
DIRSTACKBASE=$(realpath ~/. 2>/dev/null || print -nr -- "${HOME:-/}")
set -A DIRSTACK
function chpwd {
DIRSTACK[0]=$(realpath . 2>/dev/null || print -r -- "$PWD")
[[ $DIRSTACKBASE = ?(*/) ]] || \
DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/~}
:
}
chpwd .
function cd {
builtin cd "$@"
chpwd "$@"
}
function cd_csh {
local d t=${1/#~/$DIRSTACKBASE}
if ! d=$(builtin cd "$t" 2>&1); then
print -u2 "${1}: ${d##*$t - }."
return 1
fi
cd "$t"
}
function dirs {
local d dwidth
local -i fl=0 fv=0 fn=0 cpos=0
while getopts ":lvn" d; do
case $d {
(l) fl=1 ;;
(v) fv=1 ;;
(n) fn=1 ;;
(*) print -u2 'Usage: dirs [-lvn].'
return 1 ;;
}
done
shift $((OPTIND - 1))
if (( $# > 0 )); then
print -u2 'Usage: dirs [-lvn].'
return 1
fi
if (( fv )); then
fv=0
while (( fv < ${#DIRSTACK[*]} )); do
d=${DIRSTACK[fv]}
(( fl )) && d=${d/#~/$DIRSTACKBASE}
print -r -- "$fv $d"
let fv++
done
else
fv=0
while (( fv < ${#DIRSTACK[*]} )); do
d=${DIRSTACK[fv]}
(( fl )) && d=${d/#~/$DIRSTACKBASE}
(( dwidth = (${%d} > 0 ? ${%d} : ${#d}) ))
if (( fn && (cpos += dwidth + 1) >= 79 && \
dwidth < 80 )); then
print
(( cpos = dwidth + 1 ))
fi
print -nr -- "$d "
let fv++
done
print
fi
return 0
}
function popd {
local d fa
local -i n=1
while getopts ":0123456789lvn" d; do
case $d {
(l|v|n) fa+=" -$d" ;;
(+*) n=2
break ;;
(*) print -u2 'Usage: popd [-lvn] [+<n>].'
return 1 ;;
}
done
shift $((OPTIND - n))
n=0
if (( $# > 1 )); then
print -u2 popd: Too many arguments.
return 1
elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
print -u2 popd: Directory stack not that deep.
return 1
fi
elif [[ -n $1 ]]; then
print -u2 popd: Bad directory.
return 1
fi
if (( ${#DIRSTACK[*]} < 2 )); then
print -u2 popd: Directory stack empty.
return 1
fi
unset DIRSTACK[n]
set -A DIRSTACK -- "${DIRSTACK[@]}"
cd_csh "${DIRSTACK[0]}" || return 1
dirs $fa
}
function pushd {
local d fa
local -i n=1
while getopts ":0123456789lvn" d; do
case $d {
(l|v|n) fa+=" -$d" ;;
(+*) n=2
break ;;
(*) print -u2 'Usage: pushd [-lvn] [<dir>|+<n>].'
return 1 ;;
}
done
shift $((OPTIND - n))
if (( $# == 0 )); then
if (( ${#DIRSTACK[*]} < 2 )); then
print -u2 pushd: No other directory.
return 1
fi
d=${DIRSTACK[1]}
DIRSTACK[1]=${DIRSTACK[0]}
cd_csh "$d" || return 1
elif (( $# > 1 )); then
print -u2 pushd: Too many arguments.
return 1
elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
print -u2 pushd: Directory stack not that deep.
return 1
fi
while (( n-- )); do
d=${DIRSTACK[0]}
unset DIRSTACK[0]
set -A DIRSTACK -- "${DIRSTACK[@]}" "$d"
done
cd_csh "${DIRSTACK[0]}" || return 1
else
set -A DIRSTACK -- placeholder "${DIRSTACK[@]}"
cd_csh "$1" || return 1
fi
dirs $fa
}
# pager (not control character safe)
function smores {
local dummy line llen curlin=0
cat "$@" | while IFS= read -r line; do
llen=${%line}
(( llen == -1 )) && llen=${#line}
(( llen = llen ? (llen + COLUMNS - 1) / COLUMNS : 1 ))
if (( (curlin += llen) >= LINES )); then
print -n -- '\033[7m--more--\033[0m'
read -u1 dummy
[[ $dummy = [Qq]* ]] && return 0
curlin=$llen
fi
print -r -- "$line"
done
}
# base64 encoder and decoder, RFC compliant, NUL safe
function Lb64decode {
[[ -o utf8-mode ]]; local u=$?
set +U
local c s="$*" t=
[[ -n $s ]] || { s=$(cat;print x); s=${s%x}; }
local -i i=0 j=0 n=${#s} p=0 v x
local -i16 o
while (( i < n )); do
c=${s:(i++):1}
case $c {
(=) break ;;
([A-Z]) (( v = 1#$c - 65 )) ;;
([a-z]) (( v = 1#$c - 71 )) ;;
([0-9]) (( v = 1#$c + 4 )) ;;
(+) v=62 ;;
(/) v=63 ;;
(*) continue ;;
}
(( x = (x << 6) | v ))
case $((p++)) {
(0) continue ;;
(1) (( o = (x >> 4) & 255 )) ;;
(2) (( o = (x >> 2) & 255 )) ;;
(3) (( o = x & 255 ))
p=0
;;
}
t+=\\x${o#16#}
(( ++j & 4095 )) && continue
print -n $t
t=
done
print -n $t
(( u )) || set -U
}
set -A Lb64encode_code -- A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \
a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 + /
function Lb64encode {
[[ -o utf8-mode ]]; local u=$?
set +U
local c s t
if (( $# )); then
read -raN-1 s <<<"$*"
unset s[${#s[*]}-1]
else
read -raN-1 s
fi
local -i i=0 n=${#s[*]} j v
while (( i < n )); do
(( v = s[i++] << 16 ))
(( j = i < n ? s[i++] : 0 ))
(( v |= j << 8 ))
(( j = i < n ? s[i++] : 0 ))
(( v |= j ))
t+=${Lb64encode_code[v >> 18]}${Lb64encode_code[v >> 12 & 63]}
c=${Lb64encode_code[v >> 6 & 63]}
if (( i <= n )); then
t+=$c${Lb64encode_code[v & 63]}
elif (( i == n + 1 )); then
t+=$c=
else
t+===
fi
if (( ${#t} == 76 || i >= n )); then
print $t
t=
fi
done
(( u )) || set -U
}
# mksh NUL counting, never zero
typeset -Z11 -Uui16 Lnzathash_v
function Lnzathash_add {
[[ -o utf8-mode ]]; local u=$?
set +U
local s
if (( $# )); then
read -raN-1 s <<<"$*"
unset s[${#s[*]}-1]
else
read -raN-1 s
fi
local -i i=0 n=${#s[*]}
while (( i < n )); do
((# Lnzathash_v = (Lnzathash_v + s[i++] + 1) * 1025 ))
((# Lnzathash_v ^= Lnzathash_v >> 6 ))
done
(( u )) || set -U
}
function Lnzaathash_end {
((# Lnzathash_v *= 1025 ))
((# Lnzathash_v ^= Lnzathash_v >> 6 ))
((# Lnzathash_v += Lnzathash_v << 3 ))
((# Lnzathash_v = (Lnzathash_v ^
(Lnzathash_v >> 11)) * 32769 ))
print ${Lnzathash_v#16#}
}
function Lnzaathash {
Lnzathash_v=0
Lnzathash_add "$@"
Lnzaathash_end
}
function Lnzathash {
Lnzathash_v=0
Lnzathash_add "$@"
Lnzathash_end
}
function Lnzathash_end {
if (( Lnzathash_v )); then
Lnzaathash_end
else
Lnzathash_v=1
print ${Lnzathash_v#16#}
fi
}
# strip comments (and leading/trailing whitespace if IFS is set) from
# any file(s) given as argument, or stdin if none, and spew to stdout
function Lstripcom {
cat "$@" | { set -o noglob; while read _line; do
_line=${_line%%#*}
[[ -n $_line ]] && print -r -- $_line
done; }
}
# give MidnightBSD's laffer1 a bit of csh feeling
function setenv {
eval export "\"$1\""'="$2"'
}
: place customisations below this line
for p in ~/.etc/bin ~/bin; do
[[ -d $p/. ]] || continue
[[ :$PATH: = *:$p:* ]] || PATH=$p:$PATH
done
export SHELL=$MKSH MANWIDTH=80 LESSHISTFILE=-
alias cls='print -n \\033c'
#unset LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_IDENTIFICATION LC_MONETARY \
# LC_NAME LC_NUMERIC LC_TELEPHONE LC_TIME
#p=en_GB.UTF-8
#set -U
#export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
unset p
: place customisations above this line