9e216da9ef
After go1.16, go will use module mode by default, even when the repository is checked out under GOPATH or in a one-off directory. Add go.mod, go.sum to keep this repo buildable without opting out of the module mode. > go mod init github.com/mmcgrana/gobyexample > go mod tidy > go mod vendor In module mode, the 'vendor' directory is special and its contents will be actively maintained by the go command. pygments aren't the dependency the go will know about, so it will delete the contents from vendor directory. Move it to `third_party` directory now. And, vendor the blackfriday package. Note: the tutorial contents are not affected by the change in go1.16 because all the examples in this tutorial ask users to run the go command with the explicit list of files to be compiled (e.g. `go run hello-world.go` or `go build command-line-arguments.go`). When the source list is provided, the go command does not have to compute the build list and whether it's running in GOPATH mode or module mode becomes irrelevant.
138 lines
3.1 KiB
Plaintext
138 lines
3.1 KiB
Plaintext
(package pygments-test [some symbols]
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\* multiline
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comment
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*\
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\\ With vars as functions
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(define super
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[Value Succ End] Action Combine Zero ->
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(if (End Value)
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Zero
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(Combine (Action Value)
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(super [(Succ Value) Succ End]
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Action Combine Zero))))
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(define for
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Stream Action -> (super Stream Action (function do) 0))
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(define filter
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Stream Condition ->
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(super Stream
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(/. Val (if (Condition Val) [Val] []))
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(function append)
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[]))
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(for [0 (+ 1) (= 10)] (function print))
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(filter [0 (+ 1) (= 100)]
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(/. X (integer? (/ X 3))))
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\\ Typed functions
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(define typed-map
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{ (A --> B) --> (list A) --> (list B) }
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F X -> (typed-map-h F X []))
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(define typed-map-h
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{ (A --> B) --> (list A) --> (list B) \\ comment
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--> (list B) }
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_ [] X -> (reverse X)
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F [X | Y] Z -> (typed-map-h F Y [(F X) | Z]))
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(define append-string
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{ string --> string \* comment *\ --> string }
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S1 S2 -> (cn S1 S2))
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(let X 1
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Y 2
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(+ (type X number) (type Y number)))
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\\ Yacc
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(defcc <st_input>
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<lrb> <st_input1> <rrb> <st_input2>
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:= (package-macro (macroexpand <st_input1>) <st_input2>);
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<lcurly> <st_input> := [{ | <st_input>];
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<rcurly> <st_input> := [} | <st_input>];
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<bar> <st_input> := [bar! | <st_input>];
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<semicolon> <st_input> := [; | <st_input>];
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<colon> <equal> <st_input> := [:= | <st_input>];
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<colon> <minus> <st_input> := [:- | <st_input>];
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<colon> <st_input> := [: | <st_input>];
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<comma> <st_input> := [(intern ",") | <st_input>];
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<e> := [];)
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(defcc <lsb>
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91 := skip;)
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\\ Pattern matching
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(define matches
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1 X 3 -> X
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X Y Z -> Y where (and (= X 1) (= Z 3))
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true false _ -> true
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(@p a X c) (@s X "abc") (@v 1 2 3 <>) -> true
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[X | Rest] [] [a b c] -> true
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[(@p a b)] [[[1] 2] X] "string" -> true
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_ _ _ -> false)
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\\ Prolog
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(defprolog th*
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X A Hyps <-- (show [X : A] Hyps) (when false);
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X A _ <-- (fwhen (typedf? X)) (bind F (sigf X)) (call [F A]);
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(mode [F] -) A Hyp <-- (th* F [--> A] Hyp);
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(mode [cons X Y] -) [list A] Hyp <-- (th* X A Hyp) (th* Y [list A] Hyp);
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(mode [@s X Y] -) string Hyp <-- (th* X string Hyp) (th* Y string Hyp);
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(mode [lambda X Y] -) [A --> B] Hyp <-- !
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(bind X&& (placeholder))
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(bind Z (ebr X&& X Y))
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(th* Z B [[X&& : A] | Hyp]);
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(mode [type X A] -) B Hyp <-- ! (unify A B) (th* X A Hyp);)
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\\ Macros
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(defmacro log-macro
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[log N] -> [log N 10])
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\\ Sequent calculus
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(datatype rank
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if (element? X [ace 2 3 4 5 6 7 8 9 10 jack queen king])
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________
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X : rank;)
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(datatype suit
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if (element? Suit [spades hearts diamonds clubs])
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_________
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Suit : suit;)
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(datatype card
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Rank : rank; Suit : suit;
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_________________
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[Rank Suit] : card;
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Rank : rank, Suit : suit >> P;
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_____________________
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[Rank Suit] : card >> P;)
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(datatype card
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Rank : rank; Suit : suit;
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==================
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[Rank Suit] : card;)
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\\ String interpolation and escape sequences
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"abc~A ~S~R ~% blah
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c#30;c#31;blah"
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)
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