Re: [Haskell-cafe] Re: Re-order type (flip map)

Stephen Tetley schrieb:

On 11 October 2010 00:00, Johannes Waldmann wrote:

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My point was: you need to find/define two operators, not just one. Sure, I need flip ($) and flip (.)

Since the Prelude forgot to define these (and flip map), the question was: are there established names for these two operators?

(#) was quite "established" for flip ($) around 2000 - its in a couple of papers that appeared at the PADL conferences - one written by Erik Meijer, Daan Leijen and (I think) James Hook on scripting Microsoft Agents with COM. The authors noted reverse application with (#) gave code a nice OO-like reading.

The other was Peter Thiemann's Wash - (#) is again flip ($) and (##) is flipped compose.

also in Functional Metapost.