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author | Kevin Van Brunt <kmvanbrunt@gmail.com> | 2019-07-06 20:31:00 -0400 |
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committer | Kevin Van Brunt <kmvanbrunt@gmail.com> | 2019-07-06 20:31:00 -0400 |
commit | 3470b8861298b7e2e04f8f49befe98598c5a3b2a (patch) | |
tree | 81d63f9ac6e89d4ccc61d9afc6cf3d1054f878f6 /docs/overview/alternatives.rst | |
parent | 901aa9ed176507071198e84978891c69cc6e9d3b (diff) | |
parent | 34975b52e769514b44ee8c13147a22961e68e7a7 (diff) | |
download | cmd2-git-3470b8861298b7e2e04f8f49befe98598c5a3b2a.tar.gz |
Merge branch 'master' into auto_completer_refactor
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diff --git a/docs/overview/alternatives.rst b/docs/overview/alternatives.rst new file mode 100644 index 00000000..63977334 --- /dev/null +++ b/docs/overview/alternatives.rst @@ -0,0 +1,54 @@ +Alternatives +============ + +For programs that do not interact with the user in a continuous loop - programs +that simply accept a set of arguments from the command line, return results, +and do not keep the user within the program's environment - all you need are +sys_\ .argv (the command-line arguments) and argparse_ (for parsing UNIX-style +options and flags). Though some people may prefer docopt_ or click_ to +argparse_. + +.. _sys: https://docs.python.org/3/library/sys.html +.. _argparse: https://docs.python.org/3/library/argparse.html +.. _docopt: https://pypi.python.org/pypi/docopt +.. _click: http://click.pocoo.org + + +The curses_ module produces applications that interact via a plaintext terminal +window, but are not limited to simple text input and output; they can paint the +screen with options that are selected from using the cursor keys. However, +programming a curses_-based application is not as straightforward as using +cmd_. + +.. _curses: https://docs.python.org/3/library/curses.html +.. _cmd: https://docs.python.org/3/library/cmd.html + +Several Python packages exist for building interactive command-line +applications approximately similar in concept to cmd_ applications. None of +them share ``cmd2``'s close ties to cmd_, but they may be worth investigating +nonetheless. Two of the most mature and full featured are: + + * `Python Prompt Toolkit`_ + * Click_ + +.. _`Python Prompt Toolkit`: https://github.com/jonathanslenders/python-prompt-toolkit + +`Python Prompt Toolkit`_ is a library for building powerful interactive command +lines and terminal applications in Python. It provides a lot of advanced +visual features like syntax highlighting, bottom bars, and the ability to +create fullscreen apps. + +Click_ is a Python package for creating beautiful command line interfaces in a +composable way with as little code as necessary. It is more geared towards +command line utilities instead of command line interpreters, but it can be used +for either. + +Getting a working command-interpreter application based on either `Python +Prompt Toolkit`_ or Click_ requires a good deal more effort and boilerplate +code than ``cmd2``. ``cmd2`` focuses on providing an excellent out-of-the-box +experience with as many useful features as possible built in for free with as +little work required on the developer's part as possible. We believe that +``cmd2`` provides developers the easiest way to write a command-line +interpreter, while allowing a good experience for end users. If you are +seeking a visually richer end-user experience and don't mind investing more +development time, we would recommend checking out `Python Prompt Toolkit`_. |