"Variable name not terminated ('}' missing)");
if (!end_subst) /* already set if there's a default value */
end_subst = end_var + 1; /* also kill the } in the name */
if (end_var == beg_var)
"Variable name not terminated ('}' missing)");
if (!end_subst) /* already set if there's a default value */
end_subst = end_var + 1; /* also kill the } in the name */
if (end_var == beg_var)