Use figure dashes to obscure single digits

[bentley]

According to Unicode, figure dash is semantically identical to hyphen‐minus. Having a digit’s width seems desirable in this case.

Before	After

[^0-9a-zA-Z][0-9][0-9][0-9]-[^0-9a-zA-Z] should pick up all existing cases in the corpus. To make sure, I also tried the broader [0-9][0-9]*-[^a-zA-Z], but it didn’t catch anything new except false positives.

[acabal]

Good idea, thanks! However a word joiner is not necessary because a figure dash only breaks after and not before. Can you remove the word joiner from the changes?

[bentley]

Done. (I’m unable to squash at the moment, sorry.)

[acabal]

Thanks!