opciones - imprimir en haskell

¿Hay nombres pronunciables para los operadores comunes de Haskell?

Question

Estoy leyendo Learn You a Haskell para Great Good , y nunca sé cómo pronunciar a los operadores de Haskell. ¿Tienen nombres "reales"? ?

Por ejemplo, ¿cómo lees en voz alta una expresión como esta?

Just (+3) <*> Just 9

Sé que >>= es "obligatorio", pero ¿y los demás? Como Google no tiene en cuenta los caracteres no alfanuméricos, es difícil hacer una búsqueda eficiente ...

Me doy cuenta de que puede crear sus propios operadores, por lo que no todos los operadores pueden tener nombres, pero espero que los comunes (por ejemplo, los definidos en Applicative o Monad ) deben tener nombres ...

Answer 1

Así es como los pronuncio:

>>= bind >> then *> then -> to a -> b: a to b <- bind (as it desugars to >>=) <$> (f)map <$ map-replace by 0 <$ f: "f map-replace by 0" <*> ap(ply) (as it is the same as Control.Monad.ap) $ (none, just as " " [whitespace]) . pipe to a . b: "b pipe-to a" !! index ! index / strict a ! b: "a index b", foo !x: foo strict x <|> or / alternative expr <|> term: "expr or term" ++ concat / plus / append [] empty list : cons :: of type / as f x :: Int: f x of type Int / lambda @ as go ll@(l:ls): go ll as l cons ls ~ lazy go ~(a,b): go lazy pair a, b

Answer 2

Me tomé la libertad de reunir las respuestas en un programa haskell muy simple solo a través de la coincidencia de patrones para traducir el código haskell al inglés.

-- literator

main = translateLn <$> getLine >>= putStrLn

translateLn :: String -> String
translateLn = unwords . map t . words

t :: String -> String -- t(ranslate)

-- historical accurate naming
t "=" = "is equal too" -- The Whetstone of Witte - Robert Recorde (1557)

-- proposed namings
-- src http://.com/a/7747115/1091457
t ">>=" = "bind"
t "*>"  = "then"
t "->"  = "to"                   -- a -> b: a to b
t "<$"  = "map-replace by"       --  0 <$ f: "f map-replace by 0"
t "<*>" = "ap(ply)"              --  (as it is the same as Control.Monad.ap)
t "!!"  = "index"
t "!"   = "index/strict"         --  a ! b: "a index b", foo !x: foo strict x
t "<|>" = "or/alternative"       -- expr <|> term: "expr or term"
t "[]"  = "empty list"
t ":"   = "cons"
t "//"  = "lambda"
t "@"   = "as"                   -- go ll@(l:ls): go ll as l cons ls
t "~"   = "lazy"                 -- go ~(a,b): go lazy pair a, b
-- t ">>"  = "then"
-- t "<-"  = "bind"              -- (as it desugars to >>=)
-- t "<$>" = "(f)map"
-- t "$"   = ""                  -- (none, just as " " [whitespace])
-- t "."   = "pipe to"           -- a . b: "b pipe-to a"
-- t "++"  = "concat/plus/append" 
-- t "::"  = "ofType/as"         -- f x :: Int: f x of type Int

-- additional names
-- src http://.com/a/16801782/1091457
t "|"   = "such that"
t "<-"  = "is drawn from"
t "::"  = "is of type" 
t "_"   = "whatever"
t "++"  = "append"
t "=>"  = "implies"
t "."   = "compose"
t "<=<" = "left fish"
-- t "="   = "is defined as"
-- t "<$>" = "(f)map"

-- src http://.com/a/7747149/1091457
t "$"   = "of" 

-- src http://.com/questions/28471898/colloquial-terms-for-haskell-operators-e-g?noredirect=1&lq=1#comment45268311_28471898
t ">>"  = "sequence"
-- t "<$>" = "infix fmap"
-- t ">>=" = "bind"

--------------
-- Examples --
--------------

-- "(:) <$> Just 3 <*> Just [4]" 
-- meaning "Cons applied to just three applied to just list with one element four"
t "(:)"  = "Cons"
t "Just" = "just"
t "<$>"  = "applied to"
t "3"    = "three" -- this is might go a bit too far
t "[4]"  = "list with one element four" -- this one too, let''s just see where this gets us

-- additional expressions to translate from
-- src http://.com/a/21322952/1091457
-- delete (0, 0) $ (,) <$> [-1..1] <*> [-1..1]
-- (,) <$> [-1..1] <*> [-1..1] & delete (0, 0)
-- liftA2 (,) [-1..1] [-1..1] & delete (0, 0)
t "(,)" = "tuple constructor"
t "&" = "then" -- flipped `$`

-- everything not matched until this point stays at it is
t x = x

Answer 3

Mis favoritos personales son "peces abandonados" (<=<) y "peces derechos" (>=>) . Que son solo la composición de Kleisli izquierda y derecha de los operadores de mónadas. Componer sospechoso, componer!

Answer 4

+      plus
-      minus (OR negative OR negate for unary use)
*      multiply OR times
/      divide
.      dot OR compose
$      apply OR of

Answer 5

| sym  | pronunciation                                    |
|------|--------------------------------------------------|
| |    | "such that"                                      |
| <-   | "is drawn from"                                  |
| =    | "is defined to be" / "is defined as"             |
| ::   | "has type" / "of type" / "is of type"            |
| ->   | "a function that takes ... and returns a ..." /  |
|      |                          "function that maps" /  |
|      |                          "is a function from" /  |
|      |                                          "to"    |
| $    | "apply"                                          |
| _    | "whatever"                                       |
| !!   | "index"                                          |
| ++   | "concat"                                         |
| []   | "empty list"                                     |
| :    | "cons"                                           |
| /    | "lambda"                                         |
| =>   | "implies" / "then"                               |
| *>   | "then"                                           |
| <$>  | "fmap" / "dollar cyclops"                        |
| <$   | "map-replace by"                                 |
| <*>  | "ap" / "star cyclops"                            |
| .    | "pipe to" / "compose" / "dot"                    |
| <|>  | "or"                                             |
| @    | "as"                                             |
| ~    | "lazy"                                           |
| <=<  | "left fish"                                      |