Text.Parsec.Pos
| Copyright | (c) Daan Leijen 1999-2001 (c) Paolo Martini 2007 |
|---|---|
| License | BSD-style (see the LICENSE file) |
| Maintainer | [email protected] |
| Stability | provisional |
| Portability | portable |
| Safe Haskell | Safe |
| Language | Haskell2010 |
Description
Textual source positions.
type SourceName = String Source
The abstract data type SourcePos represents source positions. It contains the name of the source (i.e. file name), a line number and a column number. SourcePos is an instance of the Show, Eq and Ord class.
Instances
| Eq SourcePos | |
| Data SourcePos | |
Defined in Text.Parsec.Pos Methodsgfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> SourcePos -> c SourcePos Source gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c SourcePos Source toConstr :: SourcePos -> Constr Source dataTypeOf :: SourcePos -> DataType Source dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c SourcePos) Source dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c SourcePos) Source gmapT :: (forall b. Data b => b -> b) -> SourcePos -> SourcePos Source gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> SourcePos -> r Source gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> SourcePos -> r Source gmapQ :: (forall d. Data d => d -> u) -> SourcePos -> [u] Source gmapQi :: Int -> (forall d. Data d => d -> u) -> SourcePos -> u Source gmapM :: Monad m => (forall d. Data d => d -> m d) -> SourcePos -> m SourcePos Source gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> SourcePos -> m SourcePos Source gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> SourcePos -> m SourcePos Source | |
| Ord SourcePos | |
Defined in Text.Parsec.Pos | |
| Show SourcePos | |
sourceLine :: SourcePos -> Line Source
Extracts the line number from a source position.
sourceColumn :: SourcePos -> Column Source
Extracts the column number from a source position.
sourceName :: SourcePos -> SourceName Source
Extracts the name of the source from a source position.
incSourceLine :: SourcePos -> Line -> SourcePos Source
Increments the line number of a source position.
incSourceColumn :: SourcePos -> Column -> SourcePos Source
Increments the column number of a source position.
setSourceLine :: SourcePos -> Line -> SourcePos Source
Set the line number of a source position.
setSourceColumn :: SourcePos -> Column -> SourcePos Source
Set the column number of a source position.
setSourceName :: SourcePos -> SourceName -> SourcePos Source
Set the name of the source.
newPos :: SourceName -> Line -> Column -> SourcePos Source
Create a new SourcePos with the given source name, line number and column number.
initialPos :: SourceName -> SourcePos Source
Create a new SourcePos with the given source name, and line number and column number set to 1, the upper left.
updatePosChar :: SourcePos -> Char -> SourcePos Source
Update a source position given a character. If the character is a newline ('\n') or carriage return ('\r') the line number is incremented by 1. If the character is a tab ('t') the column number is incremented to the nearest 8'th column, ie. column + 8 -
((column-1) `mod` 8). In all other cases, the column is incremented by 1.
updatePosString :: SourcePos -> String -> SourcePos Source
The expression updatePosString pos s updates the source position pos by calling updatePosChar on every character in s, ie. foldl updatePosChar pos string.
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.10.2/docs/html/libraries/parsec-3.1.14.0/Text-Parsec-Pos.html