Curry: An Integrated Functional Logic Language

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section, 62, 74 left, 62, 74 right, 62, 74 seq, 16, 47 sequenceIO, 56 sequenceIO_, 56 sharing, 6, 68 show, 18, 54 snd, 48 solveAll, 32, 57 solved expression, 64 span, 52 splitAt, 51 strict equality, 10, 14, 15, 68 String, 18 subexpression, 64 substitution, 6, 64 subterm, 64 Success, 15 success, 15, 54 suspended evaluation, 66 tail, 48 take, 51 takeWhile, 51 True, 14, 47 try, 29, 57 tryone, 34, 57 tuple, 18, 48 type, 18 synonym declaration, 4 type constructor, 4 type declaration, 3, 5 type environment, 19 type expression, 4, 18 type instance, 19 type scheme, 19 type synonym declaration, 4 type variable, 4 unbound variable, 9 uncurry, 46 unit type, 18 unlines, 52 85 unpack, 58 until, 47 unwords, 53 unzip, 50 unzip3, 51 variable, 64 declaration, 9 free, 5, 9, 73 search, 29 variable range, 64 variant, 64 well-typed, 19 where, 8, 23, 60 words, 52 writeFile, 55 zip, 50 zip3, 50 zipWith, 50 zipWith3, 50
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Curry An Integrated Functional Logi
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9 Interface to External Functions a
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and introduces a new n-ary type con
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tion 3 with σ(t1 . . . tn) = σ(t
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since the variables occurring in pa
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tified variable (and, thus, it can
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such cases, anonymous functions (λ
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❀ {x=1,y=3} (The empty constraint
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4.1.3 Functions The type t1 -> t2 i
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4.1.8 Strings The type String is an
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g :: [a] -> [b] -> ([a],[b]) g x y
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In the last translation rule, conca
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to the module head. For instance, a
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module main where import m1 hiding
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take a character (string) and produ
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which takes a search goal and produ
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instance, if we want to compute the
Page 35 and 36: Intuitively, a function f declared
Page 37 and 38: 10 Literate Programming To encourag
Page 39 and 40: A Example Programs This section con
Page 41 and 42: A.3 Relational Programming Here is
Page 43 and 44: A.5 Constraint Solving and Concurre
Page 45 and 46: A.6 Concurrent Object-Oriented Prog
Page 47 and 48: B Standard Prelude This section con
Page 49 and 50: not :: Bool -> Bool not True = Fals
Page 51 and 52: foldr1 _ [x] = x foldr1 f (x1:x2:xs
Page 53 and 54: takeWhile _ [] = [] takeWhile p (x:
Page 55 and 56: enumFromThen n1 n2 = iterate ((n2-n
Page 57 and 58: putStr [] = done putStr (c:cs) = pu
Page 59 and 60: owseList (g:gs) = browse g >> putCh
Page 61 and 62: C.2 Layout Similarly to Haskell, a
Page 63 and 64: SimplePattern ::= VariableID | _ |
Page 65 and 66: D Operational Semantics of Curry Th
Page 67 and 68: Computation step for a single expre
Page 69 and 70: Eval [e; rule(l | c = r)] ⇒ {id
Page 71 and 72: to an expression): Eval [ϕ(e1, . .
Page 73 and 74: Eval [try(g)] ⇒ ⎧ [] if Eval [c
Page 75 and 76: D.8 Eliminating Local Declarations
Page 77 and 78: f ′′ x1 . . . xk y1 . . . ym =
Page 79 and 80: References [1] H. Aït-Kaci. An Ove
Page 81 and 82: [29] T. Johnsson. Lambda Lifting: T
Page 83 and 84: Index !!, 49 Dom, 64 VRan, 64 (), 1
Page 85: higher-order equation, 6 id, 46 if_
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