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85ad65b026
Now, there are two local binders: let x = ... use x = ... The 'let' binder will create a local definition, type-check it, and assign a name to it. When compiled, it will create 'dup' nodes. The 'use' binder is just an alias. It will not bind a new variable, and, when compiled, will create inline copies. Also, for type-checking, it allows creating aliases that are definitionaly equal for the checker.
23 lines
891 B
Plaintext
23 lines
891 B
Plaintext
String.skip
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: ∀(str: String) String
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= λstr
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use P = λx String
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use cons = λc0 λcs
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use P = λx ∀(c0: Char) ∀(cs: String) String
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use true = λc0 λcs (String.skip cs)
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use false = λc0 λcs
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use P = λx ∀(c0: Char) ∀(cs: String) String
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use true = λc0 λcs
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use P = λx ∀(c0: Char) String
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use cons = λc1 λcs λc0
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use P = λx ∀(c0: Char) ∀(c1: Char) ∀(cs: String) String
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use true = λc0 λc1 λcs (String.skip.comment cs)
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use false = λc0 λc1 λcs (String.cons c0 (String.cons c1 cs))
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(~(Char.is_slash c1) P true false c0 c1 cs)
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use nil = λc0 (String.cons c0 String.nil)
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(~cs P cons nil c0)
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use false = λc0 λcs (String.cons c0 cs)
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(~(Char.is_slash c0) P true false c0 cs)
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(~(Char.is_blank c0) P true false c0 cs)
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use nil = String.nil
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(~str P cons nil) |