completions for argc script

argc_script.bash

_argc_script() {
    local argcfile cur opts
    cur="${COMP_WORDS[COMP_CWORD]}"
    COMPREPLY=()
    argcfile=$(which ${COMP_WORDS[0]})
    if [ $? != 0 ]; then
        return 0
    fi
    opts=$(argc --argc-compgen "$argcfile" ${COMP_WORDS[@]:1} 2>/dev/null)
    COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
    return 0
}

complete -F _argc_script -o bashdefault -o default mycmd1 mycmd2

argc_script.ps1

$_argc_script_completion = {
    param($wordToComplete, $commandAst, $cursorPosition)
    $argcfile = (Get-Command $commandAst.CommandElements[0]  -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Source)
    if (!$argcfile) {
        return;
    }
    $cmds = $commandAst.CommandElements[1..($commandAst.CommandElements.Count - 1)]
    (argc --argc-compgen "$argcfile" $cmds 2>$null) -split " " | 
        Where-Object { $_ -like "$wordToComplete*" } |
        ForEach-Object { 
            if ($_.StartsWith("-")) {
                $t = [System.Management.Automation.CompletionResultType]::ParameterName
            } else {
                $t = [System.Management.Automation.CompletionResultType]::ParameterValue
            }
            [System.Management.Automation.CompletionResult]::new($_, $_, $t, '-')
        }
}

Register-ArgumentCompleter -Native -CommandName mycmd1 -ScriptBlock $_argc_script_completion
Register-ArgumentCompleter -Native -CommandName mycmd2 -ScriptBlock $_argc_script_completion

argc_script.zsh

_argc_script()
{
    local argcfile items
    argcfile=$(which $words[1])
    if [[ $? -ne 0 ]]; then
        return 0
    fi
    items=( $(argc --argc-compgen "$argcfile" ${words[@]:1} 2>/dev/null) )

    compadd $items[@]
    return 0
}

compdef _argc_script mycmd1 mycmd2