# TODO(jfw): This kind of evolved over time, there's probably a much
# faster / more concise way to express it now.
for i, (c, category) in enumerate(zip(string, categories)):
if letters and previous == LETTER and words:
# TODO(jfw): This kind of evolved over time, there's probably a much
# faster / more concise way to express it now.
for i, (c, category) in enumerate(zip(string, categories)):
if letters and previous == LETTER and words: