8 going up to that string
15 going up to that STRING'
17 3: normal changed quote
22 going up to that STRING'
24 4: empty quotes, kill them too
29 going up to that STRING'
32 quoted string'[quoted STRING]
34 half quoted stringgoing up to that STRING'
36 6: normal quotes are back
42 going up to that string
44 7: start quote+empty end quote
49 going up to that string'