func golang.org/x/text/language.ParseRegion
2 uses
golang.org/x/text/language (current package)
language.go#L522: func ParseRegion(s string) (Region, error) {
tags.go#L54: r, err := ParseRegion(s)
The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)