#!/bin/bash

ini_parse(){
	local filename="$1"
	
	sections="$(gawk '{ if ($1 ~ /^\[/) section=tolower(gensub(/\[(.+)\]/,"\\1",1,$1)); configuration[section]=1 } END {for (key in configuration) { print key} }' $filename)"
	for section in $sections; do
		array_name="ini_${section}"
		declare -g -A ${array_name}
	done
	
	eval $(gawk -F= '{
		if($1 ~ /^\[/)
			section=tolower(gensub(/\[(.+)\]/,"\\1",1,$1))
		else if($1 !~ /^$/ && $1 !~ /^;/){
			gsub(/^[ \t]+|[ \t]+$/, "", $1);
			gsub(/[\[\]]/, "", $1);
			gsub(/^[ \t]+|[ \t]+$/, "", $2);
			if(configuration[section][$1] == "")
				configuration[section][$1]=$2
			else
				configuration[section][$1]=configuration[section][$1]" "$2
			}
		}
		END {
			for(section in configuration)
				for(key in configuration[section]){
					section_name = section
					gsub("-", "_", section_name)
					print "ini_" section_name "[\""key"\"]=\""configuration[section][key]"\";"
				}
		}' ${filename}
	)
}