ref: e0e2e9d81b4dbdabb7521dcc68e9f980f26cc3a9
dir: /rc/bin/newt/
#!/bin/rc
# NEWT, their six-year-old daughter, yells from the back...
# use with nntpfs
rfork en
ramfs
argv0=$0
if(~ $#editor 0)
editor=hold
if(~ $#pager 0)
pager=cat
group=alt/test
maxposts=30
mnt=/mnt/news
if(~ $#newtname 0)
newtname=newt@dont-email.me
fn e{
{
echo From: $"newtname
echo Newsgroups: `{echo $group | sed 's/\//\./g'}
echo Subject: $"subject
echo
} >/tmp/post
eval $editor /tmp/post
yn send
if(~ $yn y)
cat /tmp/post >$mnt/$group/post
}
fn fmtd{
date=`{cat}
if(! ~ $date(1) [0-9]*)
date=`{nshift $date}
da=$date(1)
if(~ $da [0-9])
da=0^$da
switch($date(2)){
case Jan; mo=1
case Feb; mo=2
case Mar; mo=3
case Apr; mo=4
case May; mo=5
case Jun; mo=6
case Jul; mo=7
case Aug; mo=8
case Sep; mo=9
case Oct; mo=10
case Nov; mo=11
case Dec; mo=12
}
if(! ~ $date(3) `{date | awk '{print $6;}'})
ti=$date(3)
if not
ti=`{echo $date(4) | awk '{print substr($0,0,5);}'}
if(! ~ $#mo 0 && ! ~ $#da 0 && ! ~ $#ti 0)
echo $mo/$da $ti
if not
echo nil
}
fn geth{
for(i in $*){
from=`{awk -F ' ' '{print $3;}' $rposts($i)^/xover >[2]/dev/null}
if(! ~ $#from 0 && ! ~ $#from 1){
nfrom=`{
for(i in $from){
if(~ $i *@*)
echo $i | sed 's/(<|>)//g'
}
}
if(! ~ $#nfrom 0)
from=$nfrom
}
if(~ $#from 0)
from=nil
date=`{awk -F ' ' '{print $4;}' $rposts($i)^/xover >[2]/dev/null | fmtd}
if(~ $#date 0)
date=nil
subject=`{awk -F ' ' '{print substr($2,0,50);}' $rposts($i)^/xover >[2]/dev/null}
if(~ $#subject 0)
subject=nil
# unicode 00a0 divides message number from headline.
# command input ignores everything after unicode 00a0.
# these lines may be selected and sent to the prompt.
echo ' '$"i' '$"date' '$"from' '$"subject
}
}
fn getposts{ ls | grep -e '^[0-9]+$' | sort -n | tail -$maxposts }
fn getr{
switch($*){
case ,; echo $posts
case ,*; seq 1 `{echo $* | sed 's/,//g'}
case *,; seq `{echo $* | sed 's/,//g'} $posts($#posts)
case *,*; seq `{echo $* | sed 's/,/ /g'}
case *; echo $*
}
}
fn h{ sed -n $1^p /tmp/h }
fn k{
kmnt=`{echo $mnt | sed 's/\//\\\//g'}
walk $mnt/$* |
grep -v -e '\/([0-9]+|article|body|header|post|xover)$' |
sed 's/^'$"kmnt'\// g /g' |
sort |
eval $pager
}
fn nshift{ shift; echo $* }
fn printhelp{
echo 'Commands are of the form [<range>] <command> [args]
<range> := <addr> | <addr>','<addr>
<command> :=
b print the next ten headers
e enter message
g ... go to specified group
h print message headline (,h for all)
help print this help message
k ... list sub-groups under specified group
kf ... grep $home/lib/newsgroups for regexp
p print message with minimal headers
P print message with full headers
q quit
r reply to message
y synchronize message list with server
" print message in quoted form, suitable for reply
|cmd pipe message body to a command
||cmd pipe raw message to a command
!cmd run a command
? print debug information'
}
fn np{
if(test $1 -le $#rposts && test -f $mnt/$group/$rposts($1)^/body){
{ # don't stutter
grep -e '(^From|^Newsgroups|^Subject|^Date)' $rposts($1)^/header
echo
cat $rposts($1)^/body
} >/tmp/p
eval $pager /tmp/p
}
echo
go=1
r=$1
post=$1
prompt=$group/$1
}
fn P{
if(test $1 -le $#rposts && test -f $mnt/$group/$rposts($1)^/article)
eval $pager $rposts($1)^/article
echo
go=1
r=$1
post=$1
prompt=$group/$1
}
fn r{
if(test $1 -le $#rposts && test -f $mnt/$group/$rposts($1)^/header){
subject=`{grep -e '^Subject: ' $mnt/$group/$rposts($1)^/header | sed 's/^Subject: //g'}
if(! ~ $subject RE:* Re:* re:*)
subject=(Re: $subject)
e
}
if not
echo !message missing
}
fn y{
go=()
r=$post
if(! ~ $q 1){
rposts=`{getposts}
posts=`{seq 1 $#rposts}
post=$posts(1)
prompt=$post
geth $posts >/tmp/h
echo $#posts messages
}
}
fn yn{
echo
echo -n $* ' (y, n) '
yn=`{read}
switch($yn){
case y n
;
case *
yn
}
}
fn '"' {{p $1 | sed 1d | sed 's/^/> /g' | sed 's/^> >/>>/g' | sed '$d'; echo}}
fn usage{
echo usage: $argv0 '[ -f newsgroup ] [ -m mountpoint ] [ -p maxposts ]' >[1=2]
exit usage
}
while(~ $1 -*){
switch($1){
case -f
group=`{echo $2 | sed 's/\./\//g'}
shift
case -m
mnt=$2
shift
case -p
maxposts=$2
shift
case *
usage
}
shift
}
if(! ~ $#* 0)
usage
prompt=$group
if(! test -d $mnt/$group){
echo !$mnt/$group does not exist >[1=2]
exit
}
builtin cd $mnt/$group
y
while(){
echo -n $"prompt': '
# command input ignores everything after unicode 00a0.
rcmd=`{read | sed 's/[ ].*$//g' | sed 's/^([0-9]+)?(,)?([0-9]+)?/& /g'}
switch($rcmd){
case ,* [0-9]*
r=`{getr $rcmd(1)}
cmd=`{nshift $rcmd}
if(~ $#cmd 0)
cmd=p
case *
r=$post
cmd=$rcmd
}
switch($cmd){
case b
r=`{seq $r(1) `{echo $r(1)^+10|bc}}
if(test $r($#r) -gt $posts($#posts))
r=`{seq $r(1) $posts($#posts)}
if(! ~ $#r 0 && test $r(1) -le $posts($#posts)){
sed -n $r(1)^,$r($#r)^p /tmp/h
post=$r($#r)
prompt=$post
}
if not
echo !address
case e
subject=() e
case g' '*
ngroup=`{nshift $cmd | sed 's/\./\//g'}
if(test -d $mnt/$ngroup){
if(grep -s -e '^[0-9]+$' <{ls -p $mnt/$ngroup}){
group=$ngroup
builtin cd $mnt/$group
y
}
if not
echo !$ngroup contains no messages
}
if not
echo !$ngroup does not exist
case h
{
for(i in $r)
h $i
} | eval $pager
post=$r($#r)
prompt=$post
case help
printhelp
case k
k $group
case k' '*
k `{nshift $cmd | sed 's/\./\//g'}
case kf' '*
grep -e `{nshift $cmd} $home/lib/newsgroups |
sed 's/^/ g /g' |
eval $pager
case p
for(i in $r)
np $i
case P
for(i in $r)
P $i
case q
q=1 y # BUP STOP
exit
case r
for(i in $r)
r $i
post=$r($#r)
prompt=$post
case y
y
case '"'
for(i in $r)
'"' $i
post=$r($#r)
prompt=$post
case '||'*
cmd=`{echo $"cmd | sed 's/^\|\|//g'}
cat $mnt/$group/^$rposts($post)^/article | eval $cmd
case '|'*
cmd=`{echo $"cmd | sed 's/^\|//g'}
cat $mnt/$group/^$rposts($post)^/body | eval $cmd
case '!'*
eval `{echo $"cmd | sed 's/^\!//g'}
case '?'
echo editor: $editor
echo pager: $pager
echo mnt: $mnt
echo group: $group
echo maxposts: $maxposts
echo '#go': $#go
echo rposts: $rposts
echo 'rposts(r):' $rposts($r)
echo posts: $posts
echo post: $post
echo r: $r
case *
if(~ $post $posts(1) && ~ $#go 0)
np $post
if not if(! ~ $post $posts($#posts)){
post=`{echo $post^+1 | bc}
if(test $post -gt $posts($#posts))
post=$posts($#posts)
np $post
}
}
}