en_us_normalization.production.classify.CardinalFst
- class en_us_normalization.production.classify.CardinalFst[source]
Finite state transducer for classifying cardinals - numbers expressing amount. Most of the work is done in verbalization of cardinals, in classifying only few things to take into account
there shouldn’t be too many digits. If there are too many, pronounce them letter by letter. for now the limit is 6.
number can be negative, i.e. have “-” in front of it
amount can’t start with zero
cardinal numbers can be separate with commas, for ex.: 1,000,000
cardinal number can be pre-pended with prefix, for ex “#”
Examples of cardinals: - -23 -> cardinal { negative: “true” count: “23” } - 4,123 -> cardinal { count: “4123” } - # 21 -> cardinal { prefix: “number” count: “21” }