0.9.5 (October 11, 2018)

• Bug Fixes
  • Fixed bug where get_all_commands could return non-callable attributes
  • Fixed bug where alias command was dropping quotes around arguments
  • Fixed bug where running help on argparse commands didn't work if they didn't support -h
  • Fixed transcript testing bug where last command in transcript has no expected output
  • Fixed bugs with how AutoCompleter and ArgparseFunctor handle argparse
    arguments with nargs=argparse.REMAINDER. Tab completion now correctly
    matches how argparse will parse the values. Command strings generated by
    ArgparseFunctor should now be compliant with how argparse expects
    REMAINDER arguments to be ordered.
  • Fixed bugs with how AutoCompleter handles flag prefixes. It is no
    longer hard-coded to use '-' and will check against the prefix_chars in
    the argparse object. Also, single-character tokens that happen to be a
    prefix char are not treated as flags by argparse and AutoCompleter now
    matches that behavior.
  • Fixed bug where AutoCompleter was not distinguishing between a negative number and a flag
  • Fixed bug where AutoCompleter did not handle -- the same way argparse does (all args after -- are non-options)
• Enhancements
  • Added exit_code attribute of cmd2.Cmd class
    • Enables applications to return a non-zero exit code when exiting from cmdloop
  • ACHelpFormatter now inherits from argparse.RawTextHelpFormatter to make it easier
    for formatting help/description text
  • Aliases are now sorted alphabetically
  • The set command now tab-completes settable parameter names
  • Added async_alert, async_update_prompt, and set_window_title functions
    • These allow you to provide feedback to the user in an asychronous fashion, meaning alerts can
      display when the user is still entering text at the prompt. See async_printing.py
      for an example.
  • Cross-platform colored output support
    • colorama gets initialized properly in Cmd.__init()
    • The Cmd.colors setting is no longer platform dependent and now has three values:
      • Terminal (default) - output methods do not strip any ANSI escape sequences when output is a terminal, but
        if the output is a pipe or a file the escape sequences are stripped
      • Always - output methods never strip ANSI escape sequences, regardless of the output destination
      • Never - output methods strip all ANSI escape sequences
  • Added macro command to create macros, which are similar to aliases, but can take arguments when called
  • All cmd2 command functions have been converted to use argparse.
  • Renamed argparse_example.py to decorator_example.py to help clarify its intent
• Deprecations
  • Deprecated the built-in cmd2 support for colors including Cmd.colorize() and Cmd._colorcodes
• Deletions (potentially breaking changes)
  • The preparse, postparsing_precmd, and postparsing_postcmd methods deprecated in the previous release
    have been deleted
    • The new application lifecycle hook system allows for registration of callbacks to be called at various points
      in the lifecycle and is more powerful and flexible than the previous system
  • alias is now a command with sub-commands to create, list, and delete aliases. Therefore its syntax
    has changed. All current alias commands in startup scripts or transcripts will break with this release.
  • unalias was deleted since alias delete replaced it