case 'h':
		var n int
		if strings.HasPrefix(s[i:], "https://") {
			n = len("https://")
		} else if strings.HasPrefix(s[i:], "http://") {
			n = len("http://")
		} else {
			return
		}
		return p.parseAutoHTTP(s[i:i+n], s, i, i+n, i+n+1, vd)
	case 'w':
		if !strings.HasPrefix(s[i:], "www.") {
			return
		}
		// GitHub Flavored Markdown says to use http://,
		// but it's not 1985 anymore. We live in the https:// future