Safe Haskell	None
Language	Haskell2010

Data.Loc.Loc

Contents

Constructing
Querying
Show and Read

Synopsis

Documentation

data Loc Source #

Stands for location. Consists of a Line and a Column. You can think of a Loc like a caret position in a text editor. Following the normal convention for text editors and such, line and column numbers start with 1.

Instances

Eq Loc Source #
Methods (==) :: Loc -> Loc -> Bool # (/=) :: Loc -> Loc -> Bool #
Ord Loc Source #
Methods compare :: Loc -> Loc -> Ordering # (<) :: Loc -> Loc -> Bool # (<=) :: Loc -> Loc -> Bool # (>) :: Loc -> Loc -> Bool # (>=) :: Loc -> Loc -> Bool # max :: Loc -> Loc -> Loc # min :: Loc -> Loc -> Loc #
Read Loc Source #	`readPrec` = `locReadPrec`
Methods readsPrec :: Int -> ReadS Loc # readList :: ReadS [Loc] # readPrec :: ReadPrec Loc # readListPrec :: ReadPrec [Loc] #
Show Loc Source #	`showsPrec` = `locShowsPrec`
Methods showsPrec :: Int -> Loc -> ShowS # show :: Loc -> String # showList :: [Loc] -> ShowS #

Constructing

loc :: Line -> Column -> Loc Source #

Create a Loc from a line number and column number.

origin :: Loc Source #

The smallest location: loc 1 1.

>>> origin
1:1

Querying

line :: Loc -> Line Source #

column :: Loc -> Column Source #

Show and Read

locShowsPrec :: Int -> Loc -> ShowS Source #

>>> locShowsPrec minPrec (loc 3 14) ""
"3:14"

locReadPrec :: ReadPrec Loc Source #

>>> readPrec_to_S locReadPrec minPrec "3:14"
[(3:14,"")]