分数如何转换？

[Binbin Gu]

“三分之二”转到“3/2”很容易做到，但是如何做到“三分之二”转到“2/3”？ @xingchensong @dophist

[Xingchen Song(宋星辰)]

we convert fractions with two-stage method:

• stage-1 : tag and construct fraction structure
  • "三分之二" ==> “fraction { denominator: "3" frac: "/" numerator: "2" }”
• stage-2 : reorder and deconstruct
  • “fraction { denominator: "3" frac: "/" numerator: "2" }” ==> “fraction { numerator: "2" frac: "/" denominator: "3" }” ==> "2/3"

We have impl this functionality for Chinese ITN in wenet-text-processing, feel free to have a try.

Note that wenet-text-processing is still in progress and it only support CN ITN currently. We plan to add rules for EN ITN/ EN TN/ CN TN, if u are interested in building those rules, any PR is welcomed.

[Binbin Gu]

感谢帮助，把你的代码也看完了，收获很大。