| Copyright | (c) Daan Leijen 1999-2001 (c) Paolo Martini 2007 |
|---|---|
| License | BSD-style (see the LICENSE file) |
| Maintainer | derek.a.elkins@gmail.com |
| Stability | provisional |
| Portability | portable |
| Safe Haskell | Safe |
| Language | Haskell2010 |
Text.Parsec.Pos
Description
Textual source positions.
Synopsis
- typeSourceName = String
- typeLine = Int
- typeColumn = Int
- dataSourcePos
- sourceLine :: SourcePos -> Line
- sourceColumn :: SourcePos -> Column
- sourceName :: SourcePos -> SourceName
- incSourceLine :: SourcePos -> Line -> SourcePos
- incSourceColumn :: SourcePos -> Column -> SourcePos
- setSourceLine :: SourcePos -> Line -> SourcePos
- setSourceColumn :: SourcePos -> Column -> SourcePos
- setSourceName :: SourcePos -> SourceName -> SourcePos
- newPos :: SourceName -> Line -> Column -> SourcePos
- initialPos :: SourceName -> SourcePos
- updatePosChar :: SourcePos -> Char -> SourcePos
- updatePosString :: SourcePos -> String -> SourcePos
Documentation
typeSourceName = StringSource#
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
| DataSourcePosSource# | |
Defined in Text.Parsec.Pos Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> SourcePos -> c SourcePos# gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c SourcePos# toConstr :: SourcePos -> Constr# dataTypeOf :: SourcePos -> DataType# dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c SourcePos) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c SourcePos) # gmapT :: (forall b. Data b => b -> b) -> SourcePos -> SourcePos# gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> SourcePos -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> SourcePos -> r # gmapQ :: (forall d. Data d => d -> u) -> SourcePos -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> SourcePos -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> SourcePos -> m SourcePos# gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> SourcePos -> m SourcePos# gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> SourcePos -> m SourcePos# | |
| ShowSourcePosSource# | |
| EqSourcePosSource# | |
| OrdSourcePosSource# | |
Defined in Text.Parsec.Pos | |
sourceLine :: SourcePos -> LineSource#
Extracts the line number from a source position.
sourceColumn :: SourcePos -> ColumnSource#
Extracts the column number from a source position.
sourceName :: SourcePos -> SourceNameSource#
Extracts the name of the source from a source position.
incSourceLine :: SourcePos -> Line -> SourcePosSource#
Increments the line number of a source position.
incSourceColumn :: SourcePos -> Column -> SourcePosSource#
Increments the column number of a source position.
setSourceColumn :: SourcePos -> Column -> SourcePosSource#
Set the column number of a source position.
setSourceName :: SourcePos -> SourceName -> SourcePosSource#
Set the name of the source.
newPos :: SourceName -> Line -> Column -> SourcePosSource#
Create a new SourcePos with the given source name, line number and column number.
initialPos :: SourceName -> SourcePosSource#
Create a new SourcePos with the given source name, and line number and column number set to 1, the upper left.
updatePosChar :: SourcePos -> Char -> SourcePosSource#
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 -> SourcePosSource#
The expression updatePosString pos s updates the source position pos by calling updatePosChar on every character in s, ie. foldl updatePosChar pos string.
