plan9fox/rc/bin/newt

324 lines
6.3 KiB
Bash
Executable file
Raw Permalink Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#!/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
}
}
}