"Onion" and "salsa" possess a similar structure: both words consist of two identical 2-letter syllables and a distinct letter between them.
Apparently, there are more English words of similar form (12312).
Find as many as you can.

OPEN "\words\words5.txt" FOR BINARY AS #1
w$ = SPACE$(5)
DO
  GET #1, , w$
  IF EOF(1) THEN EXIT DO
  IF MID$(w$, 1, 1) = MID$(w$, 4, 1) THEN
  IF MID$(w$, 2, 1) = MID$(w$, 5, 1) THEN
    IF MID$(w$, 1, 1) <> MID$(w$, 2, 1) THEN
    IF MID$(w$, 1, 1) <> MID$(w$, 3, 1) THEN
    IF MID$(w$, 2, 1) <> MID$(w$, 3, 1) THEN
      PRINT w$
    END IF
    END IF
    END IF
  END IF
  END IF

LOOP

finds

algal
caeca
edged
ictic
magma
onion
pampa
salsa
seise
sense
shush
verve
zanza

Posted by Charlie on 2010-06-30 13:23:52