Data.Format

Documentation

fmt :: QuasiQuoter

Quasi Quoter for format strings. Examples:

Examples:

>>> let answer = 42 in [fmt|What is the answer to universe, life and everything? It's $answer!|]
"What is the answer to universe, life and everything? It's 42!"

>>> let toggle = True in [fmt|The toggle is switched ${if toggle then ("on" :: Text) else "off"}|]
"The toggle is switched on"

>>> let timeDelta = 60 in [fmt|Request latency: ${timeDelta}ms|]
"Request latency: 60ms"

fmtConcat :: Monoid a => [a] -> a

This is just mconcat, reexported under a specialized name in order to avoid namespace clashes.