ini_parser.sh

function parse_ini() {
    local varname="${1}"
    local ini_source=$(cat -)
    declare -gA "${varname}"

    local IFS_BAK="${IFS}";
    IFS=$'\n';
    for section in $(echo "${ini_source}" | grep -Po '(?<=\[).*(?=\])'); do
        for option_value in $(echo "${ini_source}" | grep -Pazo "(?s)(?<=\[${section}\])(.*?)(?=\[|$)" | tr -d '\000' | grep "="); do
            option="$(echo "${option_value}" | cut -d "=" -f 1)";
            value="$(echo "${option_value}" | cut -d "=" -f 2-)";
            eval "${varname}[\"${section},${option}\"]=\"${value}\"";
        done;
    done;
    IFS="${IFS_BAK}";
}

# TODO Need easy way to take output into array without sections with "spaces" being split-up
function get_sections() {
    IFS_BAK="${IFS}";
    IFS=$'\n';
    for key in "${@}"; do
        section_key="$(echo "${key}" | cut -d ',' -f 1)"
        echo "${section_key}"
    done  | sort | uniq;
    IFS="${IFS_BAK}";
}

function get_options() {
    section="${1}";
    shift 1;
    IFS_BAK="${IFS}";
    IFS=$'\n';
    for key in "${@}"; do
        echo "${key}" | grep "${section}";
    done | sort;
    IFS="${IFS_BAK}";
}