PP.Grammars.Lexical

AST

data RegExpr

Lexical rule AST

Constructors

RegExpr [RegExpr]

Composed of many choices

Choice [RegExpr]

Composed of many expressions

Many0 RegExpr

a many times

Many1 RegExpr

a many times, without 0

Option RegExpr

a 0 or 1 time

Group RegExpr

a grouped (parenthesis)

Class [RegExpr]

One character in the sub-classes

Interval Char Char

One character in the interval

Value Char

One specific character

Any

One character

Instances

Eq RegExpr

Methods

(==) :: RegExpr -> RegExpr -> Bool

(/=) :: RegExpr -> RegExpr -> Bool

Show RegExpr

Methods

showsPrec :: Int -> RegExpr -> ShowS

show :: RegExpr -> String

showList :: [RegExpr] -> ShowS

InputGrammar RegExpr

RegExpr InputGrammar instance

Methods

parser :: Parsec String () RegExpr

parseAst :: String -> To RegExpr

stringify :: RegExpr -> String

rules :: RegExpr -> [Rule]

lexify :: RegExpr -> RegExpr