bos-args.sh


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#!bash 
 
function bos-args/build-parser-code-into() {
    local -n parser_result_var="$1"; shift
 
    local -A argvar argtype assignment
    while [[ "${#@}" -gt 0 ]]; do
        case "$1" in
            -scalar|-array|-assoc)
                argtype["$2"]="${1#-}";
                argvar["$2"]="$3";
                shift 3
                ;;
            -assignment-*)
                assignment["${1#-assignment-}"]="$2";
                shift 2
                ;;
            *)
                >&2 echo "bad argument <$1>";
                return 1
                ;;
        esac
    done
 
    parser_result_var="while  [[ \"\${#@}\" -gt 0 ]]; do
case \"\$1\" in
"
 
    local argassign
    for argname in "${!argvar[@]}"; do
        argassign="${assignment["${argtype["$argname"]}"]}"
        argassign="${argassign//\$\{name\}/${argvar["$argname"]}}"
 
        if [[ "${argtype["$argname"]}" == scalar || "${argtype["$argname"]}" == array ]]; then
            argassign="${argassign//\$\{value/\$\{2}"
 
            parser_result_var+="-${argname}) $argassign; shift 2 ;;
"
        elif [[ "${argtype["$argname"]}" == assoc ]]; then
            argassign="${argassign//\$\{key/\$\{2}"
            argassign="${argassign//\$\{value/\$\{3}"
 
            parser_result_var+="-${argname}) $argassign; shift 3 ;;
"
        fi
    done
 
    parser_result_var+="*) shift ;;
esac
done
"
 
    return 0
}