# nmcli(1) completion

_nmcli_array_delete_at()

{

    eval "local ARRAY=(\"\${$1[@]}\")"

    local i

    local tmp=()

    local lower=$2

    local upper=${3:-$lower}

    # for some reason the following fails. So this clumsy workaround...

    #   A=(a "")

    #   echo " >> ${#A[@]}"

    #    >> 2

    #   A=("${A[@]:1}")

    #   echo " >> ${#A[@]}"

    #    >> 0

    # ... seriously???

    for i in "${!ARRAY[@]}"; do

        if [[ "$i" -lt "$2" || "$i" -gt "${3-$2}" ]]; then

            tmp=("${tmp[@]}" "${ARRAY[$i]}")

        fi

    done

    eval "$1=(\"\${tmp[@]}\")"

}

_nmcli()

{

    local cur words cword i output

    _init_completion || return

    # we don't care about any arguments after the current cursor position

    # because we only parse from left to right. So, if there are some arguments

    # right of the cursor, just ignore them. Also don't care about ${words[0]}.

    _nmcli_array_delete_at words $((cword+1)) ${#words[@]}

    _nmcli_array_delete_at words 0

    # _init_completion returns the words with all the quotes and escaping

    # characters. We don't care about them, drop them at first.

    for i in ${!words[@]}; do

        words[i]="$(printf '%s' "${words[i]}" | xargs printf '%s\n' 2>/dev/null || true)"

    done

    # In case the cursor is not at the end of the line,

    # $cur consists of spaces that we want do remove.

    # For example: `nmcli connection modify id  <TAB>  lo`

    if [[ "$cur" =~ ^[[:space:]]+ ]]; then

        cur=''

    fi

    output="$(nmcli --complete-args "${words[@]}" 2>/dev/null)"

    # Bail out early if we're completing a file name

    if [ $? = 65 ]; then

        compopt -o default

        COMPREPLY=()

        return 0

    fi

    local IFS=$'\n'

    COMPREPLY=( $( compgen -W '$output' -- $cur ) )

    # Now escape special characters (spaces, single and double quotes),

    # so that the argument is really regarded a single argument by bash.

    # See http://stackoverflow.com/questions/1146098/properly-handling-spaces-and-quotes-in-bash-completion

    local escaped_single_quote="'\''"

    local i=0

    local entry

    for entry in ${COMPREPLY[*]}

    do

        if [[ "${cur:0:1}" == "'" ]]; then

            # started with single quote, escaping only other single quotes

            # [']bla'bla"bla\bla bla --> [']bla'\''bla"bla\bla bla

            COMPREPLY[$i]="${entry//\'/${escaped_single_quote}}"

        elif [[ "${cur:0:1}" == '"' ]]; then

            # started with double quote, escaping all double quotes and all backslashes

            # ["]bla'bla"bla\bla bla --> ["]bla'bla\"bla\\bla bla

            entry="${entry//\\/\\\\}"

            entry="${entry//\"/\\\"}"

            entry="${entry//!/\"\\!\"}"

            COMPREPLY[$i]="$entry"

        else

            # no quotes in front, escaping _everything_

            # [ ]bla'bla"bla\bla bla --> [ ]bla\'bla\"bla\\bla\ bla

            entry="${entry//\\/\\\\}"

            entry="${entry//\'/\'}"

            entry="${entry//\"/\\\"}"

            entry="${entry// /\\ }"

            entry="${entry//\(/\\(}"

            entry="${entry//)/\\)}"

            entry="${entry//!/\\!}"

            entry="${entry//&/\\&}"

            COMPREPLY[$i]="$entry"

        fi

        (( i++ ))

    done

    # Work-around bash_completion issue where bash interprets a colon

    # as a separator.

    # Colon is escaped here. Change "\\:" back to ":".

    # See also:

    # http://stackoverflow.com/questions/28479216/how-to-give-correct-suggestions-to-tab-complete-when-my-words-contains-colons

    # http://stackoverflow.com/questions/2805412/bash-completion-for-maven-escapes-colon/12495727

    i=0

    for entry in ${COMPREPLY[*]}

    do

        entry="${entry//\\\\:/:}"

        COMPREPLY[$i]=${entry}

        (( i++ ))

    done

} &&

complete -F _nmcli nmcli

# ex: ts=4 sw=4 et filetype=sh