The ini parser in bash from http://ajdiaz.wordpress.com/2008/02/09/bash-ini-parser/

bash ini parser

cfg_parser ()
{
	IFS=$'\n' && ini=( $(<$1) ) # convert to line-array
	ini=( ${ini[*]//;*/} )      # remove comments with ;
	ini=( ${ini[*]/\	=/=} )  # remove tabs before =
	ini=( ${ini[*]/=\	/=} )   # remove tabs be =
	ini=( ${ini[*]/\ =\ /=} )   # remove anything with a space around =
	ini=( ${ini[*]/#[/\}$'\n'cfg.section.} ) # set section prefix
	ini=( ${ini[*]/%]/ \(} )    # convert text2function (1)
	ini=( ${ini[*]/=/=\( } )    # convert item to array
	ini=( ${ini[*]/%/ \)} )     # close array parenthesis
	ini=( ${ini[*]/%\\ \)/ \\} ) # the multiline trick
	ini=( ${ini[*]/%\( \)/\(\) \{} ) # convert text2function (2)
	ini=( ${ini[*]/%\} \)/\}} ) # remove extra parenthesis
	ini[0]="" # remove first element
	ini[${#ini[*]} + 1]='}'    # add the last brace
	eval "$(echo "${ini[*]}")" # eval the result
}

cfg_writer ()
{
    IFS=' '$'\n'
    fun="$(declare -F)"
    fun="${fun//declare -f/}"
    for f in $fun; do
        [ "${f#cfg.section}" == "${f}" ] && continue
        item="$(declare -f ${f})"
        item="${item##*\{}"
        item="${item%\}}"
        item="${item//=*;/}"
        vars="${item//=*/}"
        eval $f
        echo "[${f#cfg.section.}]"
        for var in $vars; do
            echo $var=\"${!var}\"
        done
    done
}