Method isValid

basex-core/src/main/java/org/basex/io/IOUrl.java:198–207

Checks if the specified string is a valid URL. @param url url string @return file path

(final String url)

   * @return file path
   */
  static boolean isValid(final String url) {
    final int ul = url.length();
    int u = url.indexOf(':');
    if(u < 2 || u + 1 == ul || !isJarURL(url) && url.charAt(u + 1) != '/') return false;
    while(--u >= 0) {
      final char ch = url.charAt(u);
      if(!(ch >= 'a' && ch <= 'z' || Strings.contains("+-._", ch))) return false;
    }
    return true;
  }

  /**
   * Checks if the specified string is a valid file URL.