CryPrompt

A crystal library for creating easy prompting cli tools in crystal. I wanted a prompting kit with easy to use tab completion/suggestion while also having a nice easy hierarchy for the suggestion table. Cryprompt also now features a suggestion description in its table with the opional _description option inside the json or yaml configuration

I am completely open to fixes and suggestions. If there is a better way to do anything i have done please let me know!!

Features:

• Text box suggestions
• easy suggestion path implementaion via yaml/json
• tab complete
• multiple suggestions
• description options

Suggestion Table

The flow of suggested material is in the form of a hash and can be written in json or yaml quite easily.

ex.

hello: 
  _description: this is a descroption for hello
  to:
    - you
    - jeff
    - jessie 
    - jane
  world:
  everyone:
    _description: this is a description for everyone
    with:
      a:
        _description: this is a description for "a" after "with"
        - hat
        - shirt
        - shoes
        - pants

The word "hello" defines the base of this tree and will have 2 sub suggestions "to" and "world".

Demo App

run the demo program below

git clone https://github.com/CausticKirbyZ/cryprompt.git
cd cryprompt
make && ./bin/demo

Installation

1. Add the dependency to your shard.yml:

   dependencies:
     cryprompt:
       github: CausticKirbyZ/cryprompt
       branch: master

2. Run shards install

Usage

require "cryprompt"

Development

ToDo:

• UPDATE AND DOCUMENT!!!!!! (fix crystal docs) cuz i will come back later and go what was i doing....
• The code is fairly messy.. should be cleaned up
• hitting tab will autocomplete if only 1 suggestion exists
• expose some options to change the autoprompt box color (also address the colored text issues...)
• refactor the autocomplete class to use escape codes for faster/easier cursor management
• move methods that dont need to be exposed to private
• do some sort of window size detection so no suggestions are shown unless there is appropriate window size (mostly... could be better but does work)
• windows compatability?? (would probably need to write a different get_char function based on the WM_SYSKEYDOWN function?) will wait on crystal to support windows?

Bugs:

• pasting with multiple lines is broken. - not sure how to fix...
• colored prompts will break the location of the cursor apearance due to color codes taking string space... need to fix that

Contributing

1. Fork it (https://github.com/your-github-user/cryprompt/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• CausticKirbyZ - creator and maintainer

ShoutOuts

These 2 repos. I didnt use any of their code but took inspiration on how i wanted the prompt for this library to look

• CSharpRepl
• python-prompt-toolkit