Not_a_Number,
Let me walk you through a complete example and see if that does not clarify things: 
Mystery text = "kiss me"
input:  5
output: l

input:  4
output: li

input:  7
output: lit

input: 7
ouput: lips

input:  -     # correct word length, wrong word
output: kiss

input:  +     # correct word
output: kiss  # clusmy interface - repeats correct word

input:  6
output: n

input:  3
output: of

input:  -     # correct word length, wrong word
output: me

input:  +     # correct word
output: me    # clusmy interface - repeats correct word

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Cheers - L~R

In reply to Re^4: Challenge: Predictive Texting by Limbic~Region
in thread Challenge: Predictive Texting by Limbic~Region

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