Text.Digestive.Cli

Proof-of-concept module: use digestive functors for a command line interface prompt

Documentation

newtype Descriptions

A list of descriptions for a certain input prompt

Constructors

Descriptions

Fields

unDescriptions :: Map FormId [String]

Instances

Show Descriptions

Monoid Descriptions

type Prompt a = Form IO String String Descriptions a

Type for a prompt

prompt :: String -> Prompt String

Generate a prompt field from a description

promptRead

Arguments

:: Read a

=> String

Error when the value can't be read

-> String

Description

-> Prompt a

Resulting prompt

Generate a prompt field for a value which can be read

runPrompt :: Prompt a -> IO a

Run a prompt. This will repeatedly prompt for input until we have a valid result.