Copyright	(C) 2012-2019 Edward Kmett
License	BSD-style (see the file LICENSE)
Maintainer	Edward Kmett <ekmett@gmail.com>
Stability	provisional
Portability	portable
Safe Haskell	Safe-Inferred
Language	Haskell2010

Text.Hyphenation.Pattern

Contents

Pattern file support

Description

Synopsis

data Patterns
insertPattern :: String -> Patterns -> Patterns
lookupPattern :: String -> Patterns -> [Int]
scorePattern :: String -> [Int]
parsePatterns :: String -> Patterns

Pattern file support

data Patterns Source #

Hyphenation patterns

Instances

Instances details

Show Patterns Source #
Instance details Defined in Text.Hyphenation.Pattern Methods showsPrec :: Int -> Patterns -> ShowS # show :: Patterns -> String # showList :: [Patterns] -> ShowS #
Semigroup Patterns Source #
Instance details Defined in Text.Hyphenation.Pattern Methods (<>) :: Patterns -> Patterns -> Patterns # sconcat :: NonEmpty Patterns -> Patterns # stimes :: Integral b => b -> Patterns -> Patterns #
Monoid Patterns Source #
Instance details Defined in Text.Hyphenation.Pattern Methods mempty :: Patterns # mappend :: Patterns -> Patterns -> Patterns # mconcat :: [Patterns] -> Patterns #

insertPattern :: String -> Patterns -> Patterns Source #

Insert a Knuth-Liang hyphenation pattern into the trie

. denotes the start or end of the input
0-9 are used to denote hyphenation or dehyphenation depending on whether or not they are even (no hyphen) or odd (hyphen allowed).

Patterns are overlaid and the maximum value at each location is used. this allows you to implement a finite number of precedences between hyphenation rules

(e.g. 3foo. indicates that the suffix '-foo' should be hyphenated with precedence 3.)

lookupPattern :: String -> Patterns -> [Int] Source #

Tallies the hyphenation scores for a word considering all tails.

scorePattern :: String -> [Int] Source #

Convert a Pattern string to a Score

parsePatterns :: String -> Patterns Source #

Parse one pattern per line from an input string

hyph-utf8 supplies these files UTF-8 encoded in the txt folder with a .pat.txt extension