Created
October 29, 2025 12:57
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simple shopt toggler
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| #!/usr/bin/env bash | |
| shopt -s lastpipe extglob expand_aliases | |
| function unset2 { | |
| command unset "$@" | |
| } | |
| function localopt { | |
| typeset IFS OPTARG REPLY r os=:v:uso | |
| typeset -i i dn ret=0 OPTIND=1 | |
| typeset -A o | |
| while getopts -- "$os" REPLY; do | |
| typeset -Gn r | |
| case $REPLY in | |
| [:?]) return 2 ;; | |
| [us]) printf -v r 'o[%x]' "${REPLY/#/\'}" ;; | |
| [vo]) r=o[\$REPLY] | |
| esac | |
| r=$OPTARG | |
| unset -v OPTARG | |
| unset -n r | |
| done | |
| command shift "$((OPTIND - 1))" | |
| unset2 -v OPTARG OPTIND os | |
| typeset -Gn r=${o[v]} | |
| [[ | |
| ${r@a} != *A* || | |
| ( -v o[73] && -v o[75] ) | |
| ]] && return 2 | |
| for REPLY do | |
| [[ $REPLY == +([_[:lower:]]) ]] || { ret=1; continue; } | |
| shopt "-q${o[o]+o}" -- "$REPLY" | |
| [[ -v 'o[$((i = (2 * $? + 73)))]' ]] || | |
| printf -v "r[\$REPLY]" %b "${i/#/\\x}" ${| unset2 -v REPLY o i IFS; } | |
| done | |
| return "$(( ! ${#r[@]} || ret ))" | |
| } | |
| function m { | |
| if [[ ${FUNCNAME[0]} != "${FUNCNAME[1]}" ]]; then | |
| typeset -gx BASH_COMPAT=51; | |
| typeset -A lopt | |
| localopt -v lopt -s dotglob extglob lastpipe expand_aliases sourcepath || return | |
| shopt -s -- "${!lopt[@]}" | |
| "${FUNCNAME[0]}" "$@" | |
| shopt -u -- "${!lopt[@]}" | |
| return | |
| fi | |
| echo baa! | |
| } | |
| set -x | |
| m |
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