Changes in version 0.1.3                        

  - Added standardize_arguments() function which adds names and default
    values to arguments in code (#67).
  - XML results from gradecode functions now inherit the gradecode_xml
    class in addition to their more specific class (gradecode_xml_node,
    gradecode_xml_nodeset or gradecode_xml_list) (#64).

                        Changes in version 0.1.2                        

  - fail_if_not_found() and fail_if_found() now take a ... argument,
    which is passed to fail() (#63).

                        Changes in version 0.1.1                        

New functions

  - Added find_argument_values(), which finds the values of named or
    unnamed arguments (#52).
      - e.g. find_argument_values("mean(1:10, na.rm = TRUE)") will
        return 1:10 and TRUE.
  - Added find_parent(), which finds the expression containing a
    previously found expression (#54).
      - e.g. mean(1:10, na.rm = TRUE) %>% find_operators(":") %>%
        find_parent() will return 1:10 (the expression containing the :
        operator).

New features

  - find_arguments() can now take a character vector as a match argument
    (#48).
      - If match is a character vector, arguments are found by argument
        name, regardless of their value.
      - e.g. find_arguments(match = "na.rm") can find the na.rm argument
        of mean(x, na.rm = TRUE) and mean(x, na.rm = FALSE).
  - Calling find_arguments() multiple times in a row now returns the
    same arguments each time (#62).
  - Added as.list() and as_tibble() methods for gradecode_found objects
    (#49).
  - XML results from gradecode functions now have the class
    gradecode_xml_node, gradecode_xml_nodeset or gradecode_xml_list
    (#53).
      - These classes have their own print methods.

Improvements

  - find_*() functions now attempt to reconstruct the original user code
    if their user_code argument is an XML object instead of a character
    string (#49).
  - uses_argument() can now take a recurse argument like
    find_arguments() (#48).

                        Changes in version 0.1.0                        

  - Initial release