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implement new shell compatibility markers

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This commit is contained in:
Connor Olding 2024-07-22 04:47:31 -07:00
parent 0e37575acc
commit 74b2e5ef0a
1 changed files with 15 additions and 13 deletions
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28
sh/recombine
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@ -4,18 +4,18 @@
cd ~/sh && unset IFS || exit
[ -z "${0##/*}" ] && sh=zsh || sh="${0#-}" # zsh replaces $0, so hardcode it
case "$sh" in
(ash) SH=ASH;;
(bash) SH=BASH;;
(dash) SH=DASH;;
(hush) SH=HUSH;;
(ksh) SH=KSH;;
(loksh) SH=OKSH;; # similar enough to oksh to use the same compatibility flag
(mksh) SH=MKSH;;
(oksh) SH=OKSH;;
(osh) SH=OSH;;
(posh) SH=POSH;;
(yash) SH=YASH;;
(zsh) SH=ZSH; set -o SH_WORD_SPLIT;;
(ash) SH=ASH c=ash;;
(bash) SH=BASH c=bash;;
(dash) SH=DASH c=dash;;
(hush) SH=HUSH c=hush;;
(ksh) SH=KSH c=ksh;;
(loksh) SH=OKSH c=oksh;; # similar enough to oksh to use the same compatibility flag
(mksh) SH=MKSH c=mksh;;
(oksh) SH=OKSH c=oksh;;
(osh) SH=OSH c=osh;;
(posh) SH=POSH c=posh;;
(yash) SH=YASH c=yash;;
(zsh) SH=ZSH c=zsh; set -o SH_WORD_SPLIT;;
(*)
printf >&2 %s\\n "unknown shell (\$0): $0"
exit 1
@ -26,8 +26,10 @@ for f in "${HOME:?}/sh"/*; do
[ -n "${f##*.*}" ] && [ -f "$f" ] || continue
i=10 sh=
while IFS= read -r line; do
check=0
for word in $line; do
case "$word" in (YES_$SH) sh=1;; (NO_$SH) sh=0;; esac
case "$word" in (YES_$SH) sh=1;; (NO_$SH) sh=0;; (compat:) check=1;; esac
[ "$check" != 1 ] || case "$word" in (+$c) sh=1;; (-$c) sh=0;; esac
done
[ "$((i-=1))" != 0 ] || break # act like head -n10
done < "$f"