func go/ast.isalnum

3 uses

	go/ast (current package)
		directive.go#L59: 	if !(len(c) >= 3 && c[0] == '/' && c[1] == '/' && isalnum(c[2])) {
		directive.go#L78: 		if !isalnum(buf.str[i]) {
		directive.go#L94: func isalnum(b byte) bool {