Regex to extract strings separated by anything, ignoring the separator in double quotation marks.

regex_extract_string_separated_by_anything.txt

Regex to extract strings separated by anything, ignoring the separator in double quotation marks.

("(.+)")|[^,]+       : Comma
("(.+)")|[^;]+       : Semicolon
("(.+)")|[^\.]+      : Dot
("(.+)")|[^\|]+      : Pipe
("(.+)")|[^\\]+      : Backslash

Explanation:
("(.+)")             : Any string starting and ending with double quotation marks
|                    : or
[^,]+                : Any non-comma value

Sample in java:

  /**
   * Extract strings separated by anything, ignoring the separator in double quotation marks.
   *
   * @param text Full text.
   * @param separatorRegex Separator.
   * @param ignoreSeparatorInDoubleQuotes True to ignore the separator in double quotation marks.
   * @return String array.
   */
  public static String[] split(String text, String separatorRegex, boolean ignoreSeparatorInDoubleQuotes) {
    String regex = "[^" + ((separatorRegex == null) ? ";" : separatorRegex) + "]+";
    if (ignoreSeparatorInDoubleQuotes) {
      regex = "(\"(.+)\")|" + regex;
    }
    Pattern pattern = Pattern.compile(regex);
    Matcher matcher = pattern.matcher(text);
    List<String> list = new ArrayList<String>();
    while (matcher.find()) {
      list.add(matcher.group());
    }
    return (String[]) list.toArray(new String[list.size()]);
  }