Darcs.Util.English

This modules provides rudimentary natural language generation (NLG) utilities. That is, generating natural language from a machine representation. Initially, only English is supported at all. Representations are implemented for:

• countable nouns (plurality); and
• lists of clauses (foo, bar and/or baz).

Documentation

englishNum :: Countable n => Int -> n -> ShowS

englishNum 0 (Noun "watch") "" == "watches"
englishNum 1 (Noun "watch") "" == "watch"
englishNum 2 (Noun "watch") "" == "watches"

class Countable a where

Things that have a plural and singular spelling

Methods

plural :: a -> ShowS

singular :: a -> ShowS

Instances

Countable This

Countable Pronoun

Countable Noun

newtype Noun

This only distinguishes between nouns with a final -ch, and nouns which do not. More irregular nouns will just need to have their own type

plural (Noun "batch") "" == "batches"
plural (Noun "bat")   "" == "bats"
plural (Noun "mouse") "" == "mouses" -- :-(

Constructors

Noun String

Instances

Countable Noun

data Pronoun

Constructors

It

Instances

Countable Pronoun

data This

singular This (Noun "batch") "" == "this batch"
plural   This (Noun "batch") "" == "these batches"

Constructors

This Noun

Instances

Countable This

andClauses :: [String] -> String

Given a list of things, combine them thusly:

orClauses ["foo", "bar", "baz"] == "foo, bar or baz"

orClauses :: [String] -> String

Given a list of things, combine them thusly:

orClauses ["foo", "bar", "baz"] == "foo, bar or baz"

intersperseLast :: String -> String -> [String] -> String

As intersperse, with a different separator for the last | interspersal.

presentParticiple :: String -> String