E_VARS
if ((which & E_VARS) && (cp = strchr(s, '$')) != NULL) {
if ((which & ~E_VARS) == 0 || !strcmp(s, "{") || !strcmp(s, "{}")) {
nl = expand($3, E_VARS);
$1->sc_args = expand($2, E_VARS);
$1->sc_args = expand($2, E_VARS);
files = expand(files, E_VARS|E_SHELL);
except = bp = expand(makeblock(NAME, cp), E_VARS);
bp->b_next = expand(makeblock(NAME, cp), E_VARS);