RosettaCodeData/Task/Odd-word-problem/Run-BASIC/odd-word-problem.basic

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open "oddWord.txt" for input as #f ' read input stream
while not(eof(#f))
line input #f, a$
oddW$ = "" ' begin the result oddW with blank
px = 0 ' begin word search location with 0
count = 0 ' begin the word count to 0
while x < len(a$) ' look at each character
x = instr(a$,",",px) ' search for comma (,)
if x = 0 then x = len(a$) ' no more commas?
x1 = instr(a$,";",px) ' search for (;)
x2 = instr(a$,":",px) ' search for (:)
if x1 <> 0 then x = min(x,x1) ' what came first the , ; or :
if x2 <> 0 then x = min(x,x2)
w$ = mid$(a$,px,x - px) ' get the word seperated by , ; or :
if count and 1 then ' is it the odd word
w1$ = ""
for i = len(w$) to 1 step -1
w1$ = w1$ + mid$(w$,i,1) ' reverse odd words
next i
w$ = w1$
end if
oddW$ = oddW$ + w$ + mid$(a$,x,1) ' add the word to the end of oddW$
px = x + 1 ' bump word search location for next while
count = count + 1 ' count the words
wend
print a$;" -> ";oddW$ ' print the original and result
next ii
wend
close #f