Copyright	(c) 2012 Leon P Smith
License	BSD3
Maintainer	Leon P Smith <leon@melding-monads.com>
Stability	experimental
Safe Haskell	Safe-Inferred
Language	Haskell2010

Database.PostgreSQL.Simple.Arrays

Description

A Postgres array parser and pretty-printer.

Synopsis

arrayFormat :: Char -> Parser ArrayFormat
data ArrayFormat
- = Array [ArrayFormat]
- | Plain ByteString
- | Quoted ByteString
array :: Char -> Parser [ArrayFormat]
quoted :: Parser ByteString
plain :: Char -> Parser ByteString
fmt :: Char -> ArrayFormat -> ByteString
delimit :: Char -> [ArrayFormat] -> ByteString
fmt' :: Bool -> Char -> ArrayFormat -> ByteString
esc :: ByteString -> ByteString

Documentation

arrayFormat :: Char -> Parser ArrayFormat Source #

Parse one of three primitive field formats: array, quoted and plain.

data ArrayFormat Source #

Constructors

Array [ArrayFormat]
Plain ByteString
Quoted ByteString

Instances

Instances details

Show ArrayFormat Source #
Instance details Defined in Database.PostgreSQL.Simple.Arrays Methods showsPrec :: Int -> ArrayFormat -> ShowS Source # show :: ArrayFormat -> String Source # showList :: [ArrayFormat] -> ShowS Source #
Eq ArrayFormat Source #
Instance details Defined in Database.PostgreSQL.Simple.Arrays Methods (==) :: ArrayFormat -> ArrayFormat -> Bool Source # (/=) :: ArrayFormat -> ArrayFormat -> Bool Source #
Ord ArrayFormat Source #
Instance details Defined in Database.PostgreSQL.Simple.Arrays Methods compare :: ArrayFormat -> ArrayFormat -> Ordering Source # (<) :: ArrayFormat -> ArrayFormat -> Bool Source # (<=) :: ArrayFormat -> ArrayFormat -> Bool Source # (>) :: ArrayFormat -> ArrayFormat -> Bool Source # (>=) :: ArrayFormat -> ArrayFormat -> Bool Source # max :: ArrayFormat -> ArrayFormat -> ArrayFormat Source # min :: ArrayFormat -> ArrayFormat -> ArrayFormat Source #

array :: Char -> Parser [ArrayFormat] Source #

quoted :: Parser ByteString Source #

Recognizes a quoted string.

plain :: Char -> Parser ByteString Source #

Recognizes a plain string literal, not containing quotes or brackets and not containing the delimiter character.

fmt :: Char -> ArrayFormat -> ByteString Source #

Format an array format item, using the delimiter character if the item is itself an array.

delimit :: Char -> [ArrayFormat] -> ByteString Source #

Format a list of array format items, inserting the appropriate delimiter between them. When the items are arrays, they will be delimited with commas; otherwise, they are delimited with the passed-in-delimiter.

fmt' :: Bool -> Char -> ArrayFormat -> ByteString Source #

Format an array format item, using the delimiter character if the item is itself an array, optionally applying quoting rules. Creates copies for safety when used in FromField instances.

esc :: ByteString -> ByteString Source #

Escape a string according to Postgres double-quoted string format.