Text.Digestive.Cli

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

Documentation

type Prompt a = Form IO String String PromptView a

Type for a prompt

prompt

Arguments

:: String

Description

-> Prompt String

Resulting prompt

Generate a prompt field for a String

promptList

Arguments

:: String

Description of resulting multi-prompt

-> Prompt a

Prompt to convert

-> Prompt [a]

Resulting multiple input prompt

Convert a prompt for a single item into a prompt for multiple items

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

Arguments

:: Prompt a

The Prompt to run

-> IO (Either [String] a)

A list of error strings, or the result.

Run a Prompt, sequentially prompting the user for each item.