| Copyright | (c) 2012 Leon P Smith |
|---|---|
| License | BSD3 |
| Maintainer | Leon P Smith <leon@melding-monads.com> |
| Stability | experimental |
| Safe Haskell | Safe |
| Language | Haskell98 |
Database.PostgreSQL.Simple.Arrays
Description
A Postgres array parser and pretty-printer.
- arrayFormat :: Char -> Parser ArrayFormat
- data ArrayFormat
- 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
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.