What i would like to do is like Apache is to use multiple map files and get the vars form them

i have tried the following and can only get one value `$variable1`
what is a rewrite to get `$variable1` and `$variable2` in one rewrite

rewrite ^(^\/*)/(.*)$ /index.php?key1=$variable1&key2=$variable2 last;


map $uri $variable1 {
default 11;
/sub 7;

}
map $uri $variable2 {
default 78;
/pep 23;
}


Regards, David