newt: implement ned-style address ranges and overhaul h command to suit
This commit is contained in:
stanley lieber
parent
4616c93e8d
commit
6213e137ff
214
rc/bin/newt
214
rc/bin/newt
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@ -1,5 +1,6 @@
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#!/bin/rc
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# bloated, featureful usenet reader for use with nntpfs
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# NEWT, their six-year-old daughter, yells from the back...
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# use with nntpfs
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rfork en
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ramfs
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argv0=$0
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@ -10,7 +11,7 @@ maxposts=30
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mnt=/mnt/news
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if(~ $#newtname 0)
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newtname=newt@dont-email.me
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fn enterpost{
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fn e{
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{
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echo From: $"newtname
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echo Newsgroups: `{echo $group | sed 's/\//\./g'}
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@ -18,9 +19,19 @@ fn enterpost{
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echo
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} >/tmp/post
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eval $editor /tmp/post
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cat /tmp/post >$mnt/$group/post
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yn send
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if(~ $yn y)
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cat /tmp/post >$mnt/$group/post
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}
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fn f { du -a $* | sed 's/^.* //g' }
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fn flag{
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if(~ $1 [\+][aDdfrSs] [-][aDdfrSs]){
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if(test $2 -le $#rposts && test -f $rposts($2)^/flags)
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echo $1 >$rposts($2)^/flags
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if not
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echo !address
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}
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}
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fn fmtd{
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date=`{cat}
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if(! ~ $date(1) [0-9]*)
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@ -50,7 +61,7 @@ fn fmtd{
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}
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fn geth{
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for(i in $*){
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from=`{awk -F ' ' '{print $3;}' $i/xover}
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from=`{awk -F ' ' '{print $3;}' $rposts($i)^/xover >[2]/dev/null}
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if(! ~ $#from 0 && ! ~ $#from 1){
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nfrom=`{
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for(i in $from){
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@ -61,16 +72,31 @@ fn geth{
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if(! ~ $#nfrom 0)
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from=$nfrom
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}
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if(! ~ $#from 0){
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date=`{awk -F ' ' '{print $4;}' $i/xover >[2]/dev/null | fmtd}
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awk -v date'='$"date -v from'='$from(1) -F ' ' \
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'{print " " $1 " " date " " from " " substr($2,0,50);}' $i/xover >[2]/dev/null
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}
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if not
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echo ' '$"i' nil nil nil'
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if(~ $#from 0)
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from=nil
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date=`{awk -F ' ' '{print $4;}' $rposts($i)^/xover >[2]/dev/null | fmtd}
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if(~ $#date 0)
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date=nil
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subject=`{awk -F ' ' '{print substr($2,0,50);}' $rposts($i)^/xover >[2]/dev/null}
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if(~ $#subject 0)
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subject=nil
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# unicode 00a0 divides message number from headline.
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# command input ignores everything after unicode 00a0.
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# these lines may be selected and sent to the prompt.
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echo ' '$"i' '$"date' '$"from' '$"subject
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}
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}
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fn getposts{ ls | grep -e '^[0-9]+$' | sort -n | tail -$maxposts }
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fn getr{
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switch($*){
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case ,; echo $posts
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case ,*; seq 1 `{echo $* | sed 's/,//g'}
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case *,; seq `{echo $* | sed 's/,//g'} $posts($#posts)
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case *,*; seq `{echo $* | sed 's/,/ /g'}
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case *; echo $*
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}
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}
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fn h{ sed -n $1^p /tmp/h }
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fn k{
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kmnt=`{echo $mnt | sed 's/\//\\\//g'}
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f $mnt/$* |
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@ -80,17 +106,16 @@ fn k{
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}
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fn nshift{ shift; echo $* }
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fn printhelp{
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echo '[0-9]+ print specified message
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b back
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echo 'Commands are of the form [<range>] <command> [args]
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<range> := <addr> | <addr>','<addr>
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<command> :=
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b print the next ten headers
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e enter message
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f jump to first message
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g ... go to specified group
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h print message headlines
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h print message headline (,h for all)
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help print this help message
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k ... list sub-groups under specified group
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kf ... grep $home/lib/newsgroups for regexp
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l jump to last message
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n next
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p print message with minimal headers
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P print message with full headers
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q quit
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@ -101,24 +126,62 @@ y synchronize message list with server
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||cmd pipe raw message to a command
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? print debug information'
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}
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fn printp{
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if(test -d $mnt/$group/$1){
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fn p{
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if(test $1 -le $#rposts && test -f $mnt/$group/$rposts($1)^/body){
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{ # don't stutter
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grep -e '(^From|^Newsgroups|^Subject|^Date)' $1/header
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grep -e '(^From|^Newsgroups|^Subject|^Date)' $rposts($1)^/header
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echo
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cat $1/body
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cat $rposts($1)^/body
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} >/tmp/p
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cat /tmp/p
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}
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echo
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r=$1
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post=$1
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prompt=$group/$1
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}
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fn printpp{
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if(test -d $mnt/$group/$1)
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cat $1/article
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fn P{
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if(test $1 -le $#rposts && test -f $mnt/$group/$rposts($1)^/article)
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cat $rposts($1)^/article
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echo
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r=$1
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post=$1
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prompt=$group/$1
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}
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fn r{
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if(test $1 -le $#rposts && test -f $mnt/$group/$rposts($1)^/header){
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subject=`{grep -e '^Subject: ' $mnt/$group/$rposts($1)^/header | sed 's/^Subject: //g'}
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if(! ~ $subject RE:* Re:* re:*)
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subject=(Re: $subject)
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e
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}
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if not
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echo !message missing
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}
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fn y{
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go=()
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r=$post
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if(! ~ $q 1){
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rposts=`{getposts}
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posts=`{seq 1 $#rposts}
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post=$posts(1)
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prompt=$post
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geth $posts >/tmp/h
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echo $#posts messages
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}
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}
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fn yn{
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echo
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echo -n $* ' (y, n) '
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yn=`{read}
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switch($yn){
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case y n
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;
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case *
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yn
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}
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}
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fn '"' {{p $1 | sed 1d | sed 's/^/> /g' | sed 's/^> >/>>/g' | sed '$d'; echo}}
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fn usage{
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echo usage: $argv0 '[ -f newsgroup ] [ -m mountpoint ] [ -p maxposts ]' >[1=2]
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exit usage
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@ -147,42 +210,42 @@ if(! test -d $mnt/$group){
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exit
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}
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builtin cd $mnt/$group
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go=()
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posts=`{getposts}
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geth $posts >/tmp/h
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post=$posts(1)
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echo $#posts messages
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y
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while(){
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echo -n $"prompt': '
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cmd=`{read}
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# command input ignores everything after unicode 00a0.
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rcmd=`{read | sed 's/[ ].*$//g' | sed 's/^([0-9]+)?(,)?([0-9]+)?/& /g'}
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switch($rcmd){
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case ,* [0-9]*
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r=`{getr $rcmd(1)}
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cmd=`{nshift $rcmd}
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if(~ $#cmd 0)
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cmd=p
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case *
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r=$post
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cmd=$rcmd
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}
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switch($cmd){
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case [0-9]*
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if(grep -s -e '^[0-9]+$' <{echo $cmd(1)}){
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post=$cmd(1)
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printp $post
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}
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case b
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if(! ~ $post $posts(1)){
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post=`{echo $post^-1 | bc}
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printp $post
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r=`{seq $r(1) `{echo $r(1)^+10|bc}}
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if(test $r($#r) -gt $posts($#posts))
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r=`{seq $r(1) $posts($#posts)}
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if(! ~ $#r 0 && test $r(1) -le $posts($#posts)){
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sed -n $r(1)^,$r($#r)^p /tmp/h
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post=$r($#r)
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prompt=$post
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}
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if not
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echo !address
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case e
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enterpost
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case f
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post=$posts(1)
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printp $post
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subject=() e
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case g' '*
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ngroup=`{nshift $cmd | sed 's/\./\//g'}
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if(test -d $mnt/$ngroup){
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if(grep -s -e '^[0-9]+$' <{ls -p $mnt/$ngroup}){
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group=$ngroup
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builtin cd $mnt/$group
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go=()
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posts=`{getposts}
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geth $posts >/tmp/h
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post=$posts(1)
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prompt=$group
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echo $#posts messages
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y
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}
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if not
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echo !$ngroup contains no messages
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@ -190,7 +253,10 @@ while(){
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if not
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echo !$ngroup does not exist
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case h
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cat /tmp/h
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for(i in $r)
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h $i
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post=$r($#r)
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prompt=$post
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case help
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printhelp
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case k
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@ -200,57 +266,53 @@ while(){
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case kf' '*
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grep -e `{nshift $cmd} $home/lib/newsgroups |
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sed 's/^/ g /g'
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case l
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post=$posts($#posts)
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printp $post
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case p
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printp $post
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case p' '*
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post=`{nshift $cmd}
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printp $post
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for(i in $r)
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p $i
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case P
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printpp $post
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case P' '*
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post=`{nshift $cmd}
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printpp $post
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for(i in $r)
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P $i
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case q
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q=1 y # BUP STOP
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exit
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case r
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if(test -f $mnt/$group/$post/header){
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subject='Re: '^`{grep -e '^Subject: ' $mnt/$group/$post/header | sed 's/^Subject: //g'}
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enterpost
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}
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if not
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echo !message missing
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for(i in $r)
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r $i
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post=$r($#r)
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prompt=$post
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case y
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posts=`{getposts}
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geth $posts >/tmp/h
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echo $#posts messages
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y
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case '"'
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printp $post | sed 1d | sed 's/^/> /g' | sed 's/^> >/>>/g'
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for(i in $r)
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'"' $i
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post=$r($#r)
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prompt=$post
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case '||'*
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cmd=`{echo $"cmd | sed 's/^\|\|//g'}
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cat $mnt/$group/$post/article | eval $cmd
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cat $mnt/$group/^$rposts($post)^/article | eval $cmd
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case '|'*
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cmd=`{echo $"cmd | sed 's/^\|//g'}
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cat $mnt/$group/$post/body | eval $cmd
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cat $mnt/$group/^$rposts($post)^/body | eval $cmd
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case '?'
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echo mnt: $mnt
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echo group: $group
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echo maxposts: $maxposts
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echo rposts: $rposts
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echo 'rposts(r):' $rposts($r)
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echo posts: $posts
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echo post: $post
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case n *
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echo post: $post
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echo r: $r
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case *
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if(~ $post $posts(1) && ~ $#go 0){
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go=1
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printp $post
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p $post
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}
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if not if(! ~ $post $posts($#posts)){
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go=1
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post=`{echo $post^+1 | bc}
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if(test $post -gt $posts($#posts))
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post=$posts($#posts)
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printp $post
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p $post
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}
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}
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}
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@ -39,10 +39,35 @@ Default is 30.
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starts by reading the list of messages in the
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.I newsgroup,
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printing out the number of messages, and then prompting for commands.
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The prompt itself presents the name of the group followed by
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the message number in the form of a file system path, relative to the
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The prompt itself represents the name of the group followed by the
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message number in the form of a file system path, relative to the
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.I mountpoint.
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.PP
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Commands, as in
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.IR ed (1),
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are of the form
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.RI `[ range ]
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.I command
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.RI [ arguments ]'.
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The command is applied to each message in the (optional) range.
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.PD
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.PP
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The address range can be:
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.TP 1.4i
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.I address
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to indicate a single message header.
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.PD
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.TP
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.IB address , address
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to indicate a range of contiguous message headers.
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.PD
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.PP
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The addresses can be:
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.TP 1.4i
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.I number
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to indicate a particular message.
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.PD
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.PP
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The commands are:
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.PP
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.TP
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@ -51,7 +76,7 @@ Print message
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.I number.
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.TP
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.B b
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Print the previous message.
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Print the headers for the next ten messages.
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.TP
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.B e
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Enter a new message, honoring the environment variable
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@ -59,9 +84,6 @@ Enter a new message, honoring the environment variable
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Default is
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.IR hold (1) .
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.TP
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.B f
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Jump to the first message in the group.
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.TP
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.BI g " newsgroup
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Change to the specified
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.I newsgroup.
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@ -70,9 +92,9 @@ The name of a group may be provided in dotted
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.TP
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.B h
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Print the disposition, date, sender and subject line
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of all messages in the group. These lines are suitable
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for selecting and sending to the prompt, in order to
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print messages either singly or in aggregate.
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of the message. These lines are suitable for selecting
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and sending to the prompt, in order to print messages
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either singly or in aggregate.
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.TP
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.B help
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Print a summary of the available commands.
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@ -93,12 +115,6 @@ for
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.I regexp
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and prints commands suitable for changing to each match.
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.TP
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.B l
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Jump to the last message in the group.
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.TP
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.B n, or enter key
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Print the next message.
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.TP
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.B p
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Print the current message with minimal headers.
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.TP
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