[PATCH] D43892: [YAML] speed up isNumber by doing regex matching less often

[Pavel Labath via Phabricator via llvm-commits]

labath added a comment.

That regex is relatively simple. If we're worried about performance, maybe we should just roll it out into a series of find_first_(not_)of/consume_front/... statements


Repository:
  rL LLVM

https://reviews.llvm.org/D43892