Description
Read IO library.
Description
A lightweight library to read and write data types deriving Read and Show.
README.md
ReadIO - Read IO library
A lightweight library to read and write data types deriving Read and Show.
Usage
Defining your data types
Define your data type deriving Read and Show:
data Foo = Foo
{ id :: Integer,
name :: String,
value :: Double,
nested :: [(String, Bar)]
}
deriving (Read, Show, Eq)
data Bar = Bar
{ some :: Char
}
deriving (Read, Show, Eq)
Creating your data files
Create some data files you want to read - e. g. data/a.foo
:
Foo {
id = 0,
name = "a",
value = 1.5,
nested = [
("key 1", Bar { some = 'a'}),
("key 2", Bar { some = 'A'})
]
}
and data/b.foo
:
Foo {
id = 1,
name = "b",
value = 3.1234567800009,
nested = [
("key 1", Bar { some = 'b'}),
("key 2", Bar { some = 'B'})
]
}
Read
Use
foo <- System.IO.Read.readFrom "data/a.foo" :: IO Foo
to deserialize it to IO Foo
or
foos <- System.IO.Read.readDirectory "data"` :: IO [Foo]
to deserialize all containing files to IO [Foo]
.
Show
Use
System.IO.Show.showFile foo "data/out.foo"
to serialize foo
of type Foo
to data/out.foo
.
Credits
License
See LICENSE
file.