gotools/gopls/internal/cache/testfuncs/match.go

// uniqueName creates a unique name for the given parent and subname by affixing
// it with one or more counts, if necessary.
func (b *indexBuilder) uniqueName(parent, subname string) string { … }

// parseSubtestNumber splits a subtest name into a "#%02d"-formatted int
// suffix (if present), and a prefix preceding that suffix (always).
func parseSubtestNumber(s string) (prefix string, nn int) { … }

// rewrite rewrites a subname to having only printable characters and no white
// space.
func rewrite(s string) string { … }

func isSpace(r rune) bool { … }