ARG_EXPR
search.argmode = req->q.equal ? ARG_NAME : ARG_EXPR;
search.argmode = ARG_EXPR;
if (c == 'i' && search.argmode == ARG_EXPR) {
search.argmode = ARG_EXPR;
tagarg = argc > 0 && search.argmode == ARG_EXPR ?
case ARG_EXPR: