add most of the mksh wtf edition dot.mkshrc patch, some commented
out; optimise some other cases (e.g. don't reset MKSH if set, don't
export already exported variables, etc.)
• ensure unsigned arithmetics is used in the cdb hash
• make the hash functions print their result again
• now we can use the Lb64{en,de}code trick of using stdin if "$*"==""
• optimise the one-at-a-time code for shell
fix the regression test’s results while here, which have been
broken since cid 10049D9BE5254CE65B8
• get rid of separate copyright file which was intended for De-
bian; track down commits in all files of oksh-mirbsd and mksh
to get correct copyright years per-file, as is BSD custom
strip it, but that might have other problems, better is to use realpath(2),
e.g. via readlink(1), for normalisation, or have the sysop fix it)
XXX make realpath a builtin?
* initialise the integers PPID, OPTIND, RANDOM, SECONDS, and TMOUT to base-10
* bring back PGRP as base-10 integer to the process group via getpgrp(2)
* initialise USER_ID as base-10 integer to the effective user id as retrieved
from geteuid(2) = $(id -u)
* use $USER_ID in dot.mkshrc instead of spawning an id(1) process
-> dot.mkshrc,v 1.34 now requires mksh R34
* convert more int to bool where appropriate
* remove dead code - getpgrp(2) cannot fail
* sync manual page to reality
* bump to mksh R34(beta) - feature freeze
XXX check if our_pgrp in jobs.c is still really needed, the setpgid call
XXX probably just makes us our own pgrp leader, and we might have to use
XXX and update kshpgrp accordingly - need feedback/help here but I think
XXX this simplification should be possible if I grok the code correctly.
etc/profile:
* adjust to $USER_ID changes in mksh (speed-up here, too)
mksh.hts:
* sync changelog
‣ now, a “ksh93” just requires ‘function precmd { :; }; set -o emacs’
afterwards to get rid of the annoying error messages
‣ I could lose that with the following idiom:
- PS1='$(precmd)…
+ PS1='$(typeset -i e=$?; typeset -f precmd >&- && { (return $e); precmd })…
but it didn’t seem worthwhile to me
• remove explicit licence blah, normal ./copyright applies
running it on “~/.” (must be a directory) in a global readonly variable
• if readlink fails, use some more or less sane values (no idea what csh(1)
does in these cases, maybe some feedback here?)
• optimise, while here
• dirs, pushd, popd like ports/shells/csh (Berkeley C shell)
• precmd, chpwd like ports/shells/zsh (Z shell)
and implement keeping ${DIRSTACK[0]} up to date via chpwd()
instead of doing it on entry of pushd and dirs (so that it
can be used directly)
this is slow compared to earlier, but people seem to want it
we already do not 'function\nfoo\n{' for shell, like style(9) requires for
C programming, but 'function foo\n{' instead. however, we could treat the
function keyword as indentation initialiser and use 'function foo {' (on a
line for itself) – it looks different, unusual, but acceptable, and mksh's
own output (dumping with the “functions” builtin) does that too (although,
its indentation style sucks, but is legible enough)
place most stuff from /etc/profile in /etc/skel/.mkshrc; admins must make
sure to copy this file to users' homes on upgrade (benefit: non-login but
interactive shells also get all the goodies); fix some quoting; simplify,
reformat, change comments
• from an mksh point of view:
slight internal changes in dot.mkshrc; external commands are now prefixed
with “ulimit -c 0”; $TERM is defined; improvement in determining the host
name (e.g. on Debian if a FQDN is not given); declare locals as such both
in $PS1 and outside; remove superfluous quoting, quote properly; simplify
hd alias, add rot13 alias; place RCS ID at the bottom
tg