shell下进行urldecode和urlencode 2

urlencode() {

local LANG=C

local length="${#1}"

i=0

while :

do

[ $length -gt $i ]&&{

local c="${1:$i:1}"

case $c in

[a-zA-Z0-9.~_-]) printf "$c" ;;

*) printf '%%X' "'$c" ;; 

esac

}||break

let i++

done

}



urldecode(){

u="${1//+/ }"

echo -e "${u//%/\\x}"

}