Changes in version 0.1                         

Bug fixes:

  - Choosing [ and ] as opening and closing brackets now works as
    expected

Features :

  - Support of multiple argument for all relevant functions was fixed
  - An na argument can be used to give a different value than NA to
    unmatched substrings in unglue_data(), unglue_unnest() and
    unglue_vec()
  - A new function unglue_sub() allows convenient substring substitution

                 Changes in version 0.0.1 (2019-10-07)                  

  - Added a NEWS.md file to track changes to the package.
  - Changed names, order, and default values of arguments to be
    consistent with tidyr::extract() as both functions had similar
    syntax and functionality and differences might create confusion.
  - A new function unglue_regex() can translate unglue patterns into
    proper regex.
  - A new function unglue_vec() extracts a single value from each
    string.
  - A new function unglue_detect() returns a logical indicator,
    indicating which elements from the input could be matched.
  - The elements of the list output of unglue() now only contain values
    extracted. using the relevant pattern.
  - Instead of using make.unique() when duplicate subpattern labels are
    given, unglue functions now check if identically named subpattern
    match the same content.
  - unglue functions now have a multiple argument, when multiple is a
    function instead of the default NULL, groups labelled by the same
    name are combined.