MEANS: Prevent parser from entering infinite loop.
[pspp] / tests / language / control /
drwxr-xr-x   ..
-rw-r--r-- 1693 do-if.at
-rw-r--r-- 2767 do-repeat.at
-rw-r--r-- 3135 loop.at
-rw-r--r-- 487 temporary.at