# bash completion for nim                             -*- shell-script -*-

__is_short_or_long()
{
    local actual short long
    actual="$1"
    short="$2"
    long="$3"
    [[ ! -z $short && $actual == $short ]] && return 0
    [[ ! -z $long && $actual == $long ]] && return 0
    return 1
}

__ask_for_subcmd_or_subopts()
{
    local args cmd subcmd words sub_words word_first word_last word_lastlast
    local len ilast ilastlast i ele sub_len n_nopts
    
    args=("$@")
    ask_for_what="${args[0]}"
    cmd="${args[1]}"
    subcmd="${args[2]}"
    ilast="${args[3]}"
    words=("${args[@]:4}")
    len=${#words[@]}
    ilastlast=$((ilast - 1))
    sub_words=("${words[@]:0:ilast}")
    sub_len=${#sub_words[@]}
    word_first=${words[0]}
    word_last=${words[ilast]}
    word_lastlast=${words[ilastlast]}
    n_nopts=0

    # printf "\n[DBUG] word_first:${word_first}|ilast:${ilast}|words(${len}):${words[*]}|sub_words(${sub_len}):${sub_words[*]}\n"
    
    if [[ $word_first != $cmd ]]
    then
	return 1
    fi

    i=0
    while [[ $i -lt $len ]]
    do
	ele=${words[i]}
	if [[ ! $ele =~ ^- ]]
	then
	    if [[ $ele == $cmd || $ele == $subcmd ]]
	    then
		((n_nopts+=1))
	    elif [[ $i -eq $ilast && $ele =~ ^[a-zA-Z] ]]
	    then
	        ((i=i))
	    elif [[ -z $ele ]]
	    then
	        ((i=i))
	    elif [[ $ele =~ ^: ]]
	    then
		((i+=1))
	    else
		return 1
	    fi
	fi
	((i+=1))
    done

    case $ask_for_what in
	1)
	    if [[ n_nopts -eq 1 ]]
	    then
		if [[ -z $word_last || $word_last =~ ^[a-zA-Z] ]] && [[ $word_lastlast != : ]]
		then
		    return 0
		fi
	    fi	    
	    ;;
	2) 
	    if [[ n_nopts -eq 2 ]]
	    then
		if [[ -z $word_last ]] || [[ $word_last =~ ^[-:] ]]
		then
		    return 0
		fi
	    fi  
    esac
    
    return 1
}

__ask_for_subcmd()
{
    __ask_for_subcmd_or_subopts 1 "$@"
}

__ask_for_subcmd_opts()
{
    __ask_for_subcmd_or_subopts 2 "$@"
}


_nim()
{
    local curr prev prevprev words
    local i_curr n_words i_prev i_prevprev
    
    COMPREPLY=()
    i_curr=$COMP_CWORD
    n_words=$((i_curr+1))
    i_prev=$((i_curr-1))
    i_prevprev=$((i_curr-2))
    curr="${COMP_WORDS[i_curr]}"
    prev="${COMP_WORDS[i_prev]}"
    prevprev="${COMP_WORDS[i_prevprev]}"
    words=("${COMP_WORDS[@]:0:n_words}")

    local subcmds opts candids

    # printf "\n[DBUG] curr:$curr|prev:$prev|words(${#words[*]}):${words[*]}\n"

    # Asking for a subcommand
    if __ask_for_subcmd nim nim $i_curr "${words[@]}"
    then
        subcmds=""
	# basic
	subcmds="${subcmds} compile c"
	subcmds="${subcmds} r"
	subcmds="${subcmds} doc"
	# advanced	
	subcmds="${subcmds} compileToC cc"
	subcmds="${subcmds} compileToCpp cpp"
	subcmds="${subcmds} compileToOC objc"
	subcmds="${subcmds} js"
	subcmds="${subcmds} e"
	subcmds="${subcmds} md2html"
	subcmds="${subcmds} rst2html"
	subcmds="${subcmds} md2tex"
	subcmds="${subcmds} rst2tex"
	subcmds="${subcmds} doc2tex"
	subcmds="${subcmds} jsondoc"
	subcmds="${subcmds} ctags"
	subcmds="${subcmds} buildIndex"
	subcmds="${subcmds} genDepend"
	subcmds="${subcmds} dump"
	subcmds="${subcmds} check"
	COMPREPLY=( $( compgen -W "${subcmds}" -- ${curr}) )
	return 0
    fi

    # Prioritize subcmd over opt
    if false
    then
	return 124
	
    elif false && __ask_for_subcmd_opts nim compileToC $i_curr "${words[@]}"
    then # for future use
	opts=() \
	    && candids=()
	opts+=("-u" "--undef" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	
    else
	opts=() \
	    && candids=()
	opts+=("-p" "--path" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-d" "--define" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	# note, any preceeding left parenthesis will vanish the context
	opts+=("-u" "--undef" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-f" "--forceBuild" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--stackTrace" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--lineTrace" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--threads" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--checks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--assertions" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--opt" "none speed size") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--debugger" "native") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--app" "console gui lib staticlib") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-r" "--run" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--eval" "CMD") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--fullhelp" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-h" "--help" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-v" "--version" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--objChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--fieldChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--rangeChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--boundChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--overflowChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--floatChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--nanChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--infChecks" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--defusages" "FILE,LINE,COL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-o" "--output" "FILE") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--outdir" "DIR") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--usenimcache" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--stdout" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--colors" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--filenames" "abs canonical legacyRelProj") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--processing" "dots filenames off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--unitsep" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--declaredLocs" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--spellSuggest" "NUM") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--hints" "on off list") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--hint" "HINT:on") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--hintAsError" "HINT:on") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("-w" "--warnings" "on off list") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--warning" "WARNING:on") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--warningAsError" "X:on X:off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--styleCheck" "off hint error") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--showAllMismatches" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--lib" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--import" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--include" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--nimcache" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--compileOnly" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--noLinking" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--noMain" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--genScript" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--os" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--cpu" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--debuginfo" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--passC" "OPTION") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--passL" "OPTION") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--cc" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--cincludes" "DIR") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--clibdir" "DIR") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--clib" "LIBNAME") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--project" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--docRoot" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--backend" "c cpp js objc") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--docCmd" "CMD") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--docSeeSrcUrl" "URL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--docInternal" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--lineDir" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--embedsrc" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--tlsEmulation" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--implicitStatic" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--trmacros" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--multimethods" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--hotCodeReloading" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--excessiveStackTrace" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--stackTraceMsgs" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--skipCfg" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--skipUserCfg" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--skipParentCfg" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--skipProjCfg" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--mm" "orc arc refc markAndSweep boehm go none regions") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--exceptions" "setjmp cpp goto quirky") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--index" "on off only") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--noImportdoc" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--putenv" "KEY=VALUE") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--NimblePath" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--noNimblePath" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--clearNimblePath" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--cppCompileToNamespace" "NAMESPACE") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--nimMainPrefix" "PREFIX") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--expandMacro" "MACRO") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--expandArc" "PROCNAME") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--excludePath" "PATH") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--dynlibOverride" "SYMBOL") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--dynlibOverrideAll" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--listCmd" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--asm" "") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--parallelBuild" "N") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--incremental" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--verbosity" "0 1 2 3") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--errorMax" "N") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--maxLoopIterationsVM" "N") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--experimental" "dotOperators callOperator parallel destructor notnil dynamicBindSym forLoopMacros caseStmtMacros codeReordering compiletimeFFI vmopsDanger strictFuncs views strictNotNil overloadableEnums strictEffects unicodeOperators flexibleOptionalParams strictDefs strictCaseObjects inferGenericTypes openSym genericsOpenSym vtables") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--legacy" "allowSemcheckedAstModification checkUnsignedConversions laxEffects verboseTypeMismatch emitGenerics jsNoLambdaLifting") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--benchmarkVM" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--profileVM" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--panics" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--deepcopy" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--jsbigint64" "on off") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
	opts+=("" "--nimBasePattern" "nimbase.h") \
	    && candids+=(${opts[$((${#opts[@]}-3))]} ${opts[$((${#opts[@]}-2))]})
    fi
    
    local c_short c_long c_accvals
    local len i idx0 idx1 idx2
    
    case $curr in
	# Asking for accepted optvalues, e.g., `out:`
	:)
	    len=${#opts[@]}
	    i=0
	    
	    while [[ $i -lt $len ]]
	    do
		idx0=$((i / 3 * 3))
	        idx1=$((idx0 + 1))
		idx2=$((idx1 + 1))
		c_short=${opts[idx0]}
		c_long=${opts[idx1]}
		c_accvals=${opts[idx2]}
		(false \
		     || __is_short_or_long $prev ${c_short} ${c_long} \
		     || false) \
		    && COMPREPLY=( $(compgen -W "${c_accvals}" --) ) \
		    && return 0
		((i+=3))
	    done

	    return 124
	    ;;
	
	*)
	    # When in a incomplete opt value, e.g., `--check:of`
	    if [[ $prev == : ]]
	    then
		len=${#opts[@]}
		i=0
		while [[ $i -lt $len ]]
		do
		    idx0=$((i / 3 * 3))
		    idx1=$((idx0 + 1))
		    idx2=$((idx1 + 1))
		    c_short=${opts[idx0]}
		    c_long=${opts[idx1]}
		    c_accvals=${opts[idx2]}
		    (false \
			 || __is_short_or_long $prevprev ${c_short} ${c_long} \
			 || false) \
			&& COMPREPLY=( $(compgen -W "${c_accvals}" -- ${curr}) ) \
			&& return 0
		    ((i+=3))
		done
		return 124
	    fi

	    # When in a complete optname, might need optvalue, e.g., `--check`
	    if [[ $curr =~ ^--?[:()a-zA-Z]+$ ]]
	    then
	        len=${#opts[@]}
		i=0
		while [[ $i -lt $len ]]
		do
		    idx0=$(((i / 3 * 3)))
		    idx1=$((idx0 + 1))
		    idx2=$((idx1 + 1))
		    c_short=${opts[idx0]}
		    c_long=${opts[idx1]}
		    c_accvals=${opts[idx2]}
		    
		    if __is_short_or_long $curr ${c_short} ${c_long}
		    then
			if [[ ! -z $c_accvals ]]
			then
			    COMPREPLY=( $(compgen -W "${curr}:" -- ${curr}) ) \
				&& compopt -o nospace \
				&& return 0
			else
			    COMPREPLY=( $(compgen -W "${curr}" -- ${curr}) ) \
				&& return 0		    
			fi
		    fi
		    
		    ((i+=3))
		done # while
		
		if true
		then		
		    COMPREPLY=( $(compgen -W "${candids[*]}" -- "$curr") )
		    compopt -o nospace
		    return 0
		fi
		
	    # When in an incomplete optname, e.g., `--chec`
	    elif [[ $curr =~ ^--?[^:]* ]]
	    then
		if true
		then		
		    COMPREPLY=( $(compgen -W "${candids[*]}" -- "$curr") )
		    compopt -o nospace
		    return 0
		fi		
	    fi

	    if true
	    then
		compopt -o filenames
		COMPREPLY=( $(compgen -f -- "$curr") )
		compopt -o nospace
		return 0
	    fi
	    
	    ;;
    esac
    return 0

} &&
    complete -F _nim nim

# ex: filetype=sh