hxt-9.0.1: A collection of tools for processing XML with Haskell. Source code Contents Index

Data.AssocList Portability portable Stability stable Maintainer Uwe Schmidt (uwe@fh-wedel.de)

Description

Simple key value assocciation list implemented as unordered list of pairs

Synopsis

type AssocList k v = [(k, v)] lookupDef :: Eq k => v -> k -> AssocList k v -> v lookup1 :: Eq k => k -> AssocList k [e] -> [e] hasEntry :: Eq k => k -> AssocList k v -> Bool addEntry :: Eq k => k -> v -> AssocList k v -> AssocList k v addEntries :: Eq k => AssocList k v -> AssocList k v -> AssocList k v delEntry :: Eq k => k -> AssocList k v -> AssocList k v delEntries :: Eq k => [k] -> AssocList k v -> AssocList k v

Documentation

type AssocList k v = [(k, v)] Source

lookupDef :: Eq k => v -> k -> AssocList k v -> v Source

lookup with default value

lookup1 :: Eq k => k -> AssocList k [e] -> [e] Source

lookup with empty list (empty string) as default value

hasEntry :: Eq k => k -> AssocList k v -> Bool Source

test for existence of a key

addEntry :: Eq k => k -> v -> AssocList k v -> AssocList k v Source

add an entry, remove an existing entry before adding the new one at the top of the list, addEntry is strict

addEntries :: Eq k => AssocList k v -> AssocList k v -> AssocList k v Source

add a whole list of entries with addEntry

delEntry :: Eq k => k -> AssocList k v -> AssocList k v Source

delete an entry, delEntry is strict

delEntries :: Eq k => [k] -> AssocList k v -> AssocList k v Source

delete a list of entries with delEntry

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