func golang.org/x/mod/semver.parsePrerelease
2 uses
golang.org/x/mod/semver (current package)
semver.go#L208: p.prerelease, v, ok = parsePrerelease(v)
semver.go#L244: func parsePrerelease(v string) (t, rest string, ok bool) {
The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)