Seems like the function is easy to define:

replaceIfEq a b c = if c == a then b else c

Then the above can be written

   replaceIfEq Foo Bar value

Or the slightly more general (in exchange for slightly more verbosity at the call site)

replaceIf p r a = if p a then r else a

   replaceIf (== Foo) Bar value

On Fri, Dec 21, 2012 at 6:46 PM, Radical <radical@google.com> wrote:

Sometimes I'll need something like:

  if value == Foo then Bar else value

Or some syntactic variation thereof:

  case value of { Foo -> Bar; _ -> value }

Is there a better/shorter way to do it? I'm surprised that it's more complicated to substitute a value on its own than e.g. in a list, using filter. Or perhaps I'm missing the right abstraction?

Thanks,

Alvaro

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