fn first_letter_range(text: &str) -> Range<usize> ⓘExpand description
Computes the range of the first letter.
The range includes any preceding punctuation, and any spaces interleaved within the preceding punctuation or between the preceding punctuation and the first letter/number/symbol. Succeeding punctuation are included in the range, but any space following the letter/number/symbol ends the range. Intervening succeeding spaces are not supported yet.