8. The handheld electronic device of claim 6 , further comprising: making a determination that at least a portion of a particular candidate matches the at least portion of the string of characters; and responsive to said making a determination, storing the at least portion of the string of characters as at least a portion of a segment.
8. The handheld electronic device of claim 6 , further comprising: making a determination that at least a portion of a particular candidate matches the at least portion of the string of characters; and responsive to said making a determination, storing the at least portion of the string of characters as at least a portion of a segment. 9. The handheld electronic device of claim 8 , further comprising deleting the particular candidate.