| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
This module provides a low-level API to the line history stored in the InputT monad transformer.
For most application, it should suffice to instead use the following Settings flags:
autoAddHistory: add nonblank lines to the command history (True by default).historyFile: read/write the history to a file before and after the line input session.If you do want custom history behavior, you may need to disable the above default setting(s).
emptyHistory :: History Source
addHistory :: String -> History -> History Source
addHistoryUnlessConsecutiveDupe :: String -> History -> History Source
Add a line to the history unless it matches the previously recorded line.
addHistoryRemovingAllDupes :: String -> History -> History Source
Add a line to the history, and remove all previous entries which are the same as it.
historyLines :: History -> [String] Source
The input lines stored in the history (newest first)
readHistory :: FilePath -> IO History Source
Reads the line input history from the given file. Returns emptyHistory if the file does not exist or could not be read.
writeHistory :: FilePath -> History -> IO () Source
Writes the line history to the given file. If there is an error when writing the file, it will be ignored.
stifleHistory :: Maybe Int -> History -> History Source
Limit the number of lines stored in the history.
stifleAmount :: History -> Maybe Int Source
The maximum number of lines stored in the history. If Nothing, the history storage is unlimited.
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.8.3/docs/html/libraries/haskeline-0.7.5.0/System-Console-Haskeline-History.html