So here's the code i'm using:
/cmd create arch
/cmd add arch %armor% = array(298, 299, 300, 301)
/cmd add arch %bow%[\"id\"] = 261
/cmd add arch %bow%[\"variant\"] = 0
/cmd add arch %bow%[\"count\"] = 1
/cmd add arch %bow%[\"name\"] = \"Archer's Bow\"
All this is fine till I get to here:
/cmd...