Text.Regex.DFA.Pattern

regex-dfa-0.91: Replaces/Enhances Text.Regex

Contents

Pattern DoPa

Description

This Text.Regex.DFA.Pattern module provides the Pattern data type and its subtypes. This Pattern type is used to represent the parsed form of a Regular Expression and is syntax independent.

It is possible to construct values of Pattern that are invalid regular expressions.

There are also several

Synopsis

data Pattern

= PEmpty

| PGroup PatternIndex Pattern

| POr [Pattern]

| PConcat [Pattern]

| PQuest Pattern

| PPlus Pattern

| PStar Pattern

| PBound Int (Maybe Int) Pattern

| PCarat DoPa

| PDollar DoPa

| PDot DoPa

| PAny DoPa PatternSet

| PAnyNot DoPa PatternSet

| PEscape DoPa Char

| PChar DoPa Char

data PatternSet = PatternSet (Maybe (Set Char)) (Maybe (Set PatternSetCharacterClass)) (Maybe (Set PatternSetCollatingElement)) (Maybe (Set PatternSetEquivalenceClass))

newtype PatternSetCharacterClass = PatternSetCharacterClass {

unSCC :: String

}

newtype PatternSetCollatingElement = PatternSetCollatingElement {

unSCE :: String

}

newtype PatternSetEquivalenceClass = PatternSetEquivalenceClass {

unSEC :: String

}

type PatternIndex = Int

showPattern :: Pattern -> String

showPatternP :: Pattern -> String

data DoPa = DoPa {

dopaIndex :: Int

}

newDoPa :: Int -> DoPa

Documentation

data Pattern

Constructors

PEmpty
PGroup PatternIndex Pattern
POr [Pattern]
PConcat [Pattern]
PQuest Pattern
PPlus Pattern
PStar Pattern
PBound Int (Maybe Int) Pattern
PCarat DoPa
PDollar DoPa
PDot DoPa
PAny DoPa PatternSet
PAnyNot DoPa PatternSet
PEscape DoPa Char
PChar DoPa Char