Safe Haskell	None
Language	Haskell98

System.Console.Haskeline.Completion

Contents

Word completion
Filename completion

Synopsis

type CompletionFunc m = (String, String) -> m (String, [Completion])
data Completion = Completion {
- replacement :: String
- display :: String
- isFinished :: Bool
}
noCompletion :: Monad m => CompletionFunc m
simpleCompletion :: String -> Completion
fallbackCompletion :: Monad m => CompletionFunc m -> CompletionFunc m -> CompletionFunc m
completeWord :: Monad m => Maybe Char -> [Char] -> (String -> m [Completion]) -> CompletionFunc m
completeWord' :: Monad m => Maybe Char -> (Char -> Bool) -> (String -> m [Completion]) -> CompletionFunc m
completeWordWithPrev :: Monad m => Maybe Char -> [Char] -> (String -> String -> m [Completion]) -> CompletionFunc m
completeWordWithPrev' :: Monad m => Maybe Char -> (Char -> Bool) -> (String -> String -> m [Completion]) -> CompletionFunc m
completeQuotedWord :: Monad m => Maybe Char -> [Char] -> (String -> m [Completion]) -> CompletionFunc m -> CompletionFunc m
completeFilename :: MonadIO m => CompletionFunc m
listFiles :: MonadIO m => FilePath -> m [Completion]
filenameWordBreakChars :: String

Documentation

type CompletionFunc m = (String, String) -> m (String, [Completion]) Source #

Performs completions from the given line state.

The first String argument is the contents of the line to the left of the cursor, reversed. The second String argument is the contents of the line to the right of the cursor.

The output String is the unused portion of the left half of the line, reversed.

data Completion Source #

Constructors

Completion
Fields replacement :: String Text to insert in line. display :: String Text to display when listing alternatives. isFinished :: Bool Whether this word should be followed by a space, end quote, etc.

Instances

Instances details

Eq Completion #
Instance details Defined in System.Console.Haskeline.Completion Methods (==) :: Completion -> Completion -> Bool # (/=) :: Completion -> Completion -> Bool #
Ord Completion #
Instance details Defined in System.Console.Haskeline.Completion Methods compare :: Completion -> Completion -> Ordering # (<) :: Completion -> Completion -> Bool # (<=) :: Completion -> Completion -> Bool # (>) :: Completion -> Completion -> Bool # (>=) :: Completion -> Completion -> Bool # max :: Completion -> Completion -> Completion # min :: Completion -> Completion -> Completion #
Show Completion #
Instance details Defined in System.Console.Haskeline.Completion Methods showsPrec :: Int -> Completion -> ShowS Source # show :: Completion -> String Source # showList :: [Completion] -> ShowS Source #

noCompletion :: Monad m => CompletionFunc m Source #

Disable completion altogether.

simpleCompletion :: String -> Completion Source #

Create a finished completion out of the given word.

fallbackCompletion :: Monad m => CompletionFunc m -> CompletionFunc m -> CompletionFunc m Source #

If the first completer produces no suggestions, fallback to the second completer's output.

Word completion

completeWord Source #

Arguments

:: Monad m
=> Maybe Char	An optional escape character
-> [Char]	Characters which count as whitespace
-> (String -> m [Completion])	Function to produce a list of possible completions
-> CompletionFunc m

A custom CompletionFunc which completes the word immediately to the left of the cursor.

A word begins either at the start of the line or after an unescaped whitespace character.

completeWord' Source #

Arguments

:: Monad m
=> Maybe Char	An optional escape character
-> (Char -> Bool)	Characters which count as whitespace
-> (String -> m [Completion])	Function to produce a list of possible completions
-> CompletionFunc m

The same as completeWord but takes a predicate for the whitespace characters

completeWordWithPrev Source #

Arguments

:: Monad m
=> Maybe Char	An optional escape character
-> [Char]	Characters which count as whitespace
-> (String -> String -> m [Completion])	Function to produce a list of possible completions. The first argument is the line contents to the left of the word, reversed. The second argument is the word to be completed.
-> CompletionFunc m

A custom CompletionFunc which completes the word immediately to the left of the cursor, and takes into account the line contents to the left of the word.

A word begins either at the start of the line or after an unescaped whitespace character.

completeWordWithPrev' Source #

Arguments

:: Monad m
=> Maybe Char	An optional escape character
-> (Char -> Bool)	Characters which count as whitespace
-> (String -> String -> m [Completion])	Function to produce a list of possible completions. The first argument is the line contents to the left of the word, reversed. The second argument is the word to be completed.
-> CompletionFunc m

The same as completeWordWithPrev but takes a predicate for the whitespace characters

completeQuotedWord Source #

Arguments

:: Monad m
=> Maybe Char	An optional escape character
-> [Char]	Characters which set off quotes
-> (String -> m [Completion])	Function to produce a list of possible completions
-> CompletionFunc m	Alternate completion to perform if the cursor is not at a quoted word
-> CompletionFunc m

Filename completion

completeFilename :: MonadIO m => CompletionFunc m Source #

listFiles :: MonadIO m => FilePath -> m [Completion] Source #

List all of the files or folders beginning with this path.

filenameWordBreakChars :: String Source #