#!/bin/bash
#BHP - BASH Home Page - Library

$_GET="$QUERY_STRING";
read _POST;
if [ "$REQUEST_METHOD" == 'POST' ]; then
   QUERY_STRING="$POST";
fi

QUERY_STRING='hl=cs&q=%C5%BElu%C5%A5ou%C4%8Dk%C3%BD+k%C3%BA%C5%88&btnG=Hledat&lr='; #debug-only

echo -ne 'Content-type: text/html\n\n'

urldecode() {
	echo -e $( echo "$@" | sed -e 's/+/ /g;s/%/\\x/g' );
}

urlvalue() {
	if [[ ! -z "$2" ]]; then QUERY_STRING="$2"; fi;
	echo "$QUERY_STRING" | sed -e 's/&/\n/g'| while read i; do
		param="$(echo $i | cut -d = -f 1)"; param="$(urldecode $param)";
		value="$(echo $i | cut -d = -f 2)"; value="$(urldecode $value)";
		if [[ "$param" == "$1" ]]; then echo "$value"; break; fi;
	done;
	return 1;
}

urlvalue q
echo "ret = $?";
urlvalue qos
echo "ret = $?";