Merge branch 'master' of git://factorcode.org/git/jamesnvc
commit
408199e423
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@ -5,14 +5,16 @@ quotations ;
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IN: lisp.test
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[
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init-env
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: define-lisp-builtins ( -- )
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init-env
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[ f ] "#f" lisp-define
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[ t ] "#t" lisp-define
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f "#f" lisp-define
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t "#t" lisp-define
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"+" "math" "+" define-primitive
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"-" "math" "-" define-primitive
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"<" "math" "<" define-primitive
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">" "math" ">" define-primitive
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"cons" "lists" "cons" define-primitive
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"car" "lists" "car" define-primitive
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@ -21,36 +23,40 @@ IN: lisp.test
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"nil" "lists" "nil" define-primitive
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"nil?" "lists" "nil?" define-primitive
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[ seq>list ] "##list" lisp-define
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"define" "lisp" "defun" define-primitive
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"(lambda (&rest xs) xs)" lisp-string>factor "list" lisp-define
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;
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[
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define-lisp-builtins
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{ 5 } [
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! [ 2 3 ] "+" <lisp-symbol> funcall
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"(+ 2 3)" lisp-eval
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"(+ 2 3)" lisp-eval
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] unit-test
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{ 8.3 } [
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! [ 10.4 2.1 ] "-" <lisp-symbol> funcall
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"(- 10.4 2.1)" lisp-eval
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"(- 10.4 2.1)" lisp-eval
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] unit-test
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{ 3 } [
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"((lambda (x y) (+ x y)) 1 2)" lisp-eval
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"((lambda (x y) (+ x y)) 1 2)" lisp-eval
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] unit-test
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! { 42 } [
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! "((lambda (x y z) (+ x (- y z))) 40 3 1)" lisp-eval
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! ] unit-test
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{ 42 } [
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"((lambda (x y z) (+ x (- y z))) 40 3 1)" lisp-eval
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] unit-test
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{ "b" } [
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"(cond (#f \"a\") (#t \"b\"))" lisp-eval
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"(cond (#f \"a\") (#t \"b\"))" lisp-eval
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] unit-test
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{ 5 } [
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"(begin (+ 1 4))" lisp-eval
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{ "b" } [
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"(cond ((< 1 2) \"b\") (#t \"a\"))" lisp-eval
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] unit-test
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{ +nil+ } [
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"(list)" lisp-eval
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] unit-test
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{ { 1 2 3 4 5 } } [
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@ -61,20 +67,28 @@ IN: lisp.test
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"(list 1 2 (list 3 (list 4) 5))" lisp-eval cons>seq
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] unit-test
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{ 5 } [
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"(begin (+ 1 4))" lisp-eval
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] unit-test
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{ 5 } [
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"(begin (+ 5 6) (+ 1 4))" lisp-eval
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] unit-test
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{ T{ lisp-symbol f "if" } } [
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"(defmacro if (pred tr fl) (list (quote cond) (list (list pred tr) (list t fl))))" lisp-eval
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"(defmacro if (pred tr fl) (list (quote cond) (list pred tr) (list (quote #t) fl)))" lisp-eval
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] unit-test
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{ t } [
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T{ lisp-symbol f "if" } lisp-macro?
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] unit-test
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! { 1 } [
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! "(if #t 1 2)" lisp-eval
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! ] unit-test
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{ 1 } [
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"(if #t 1 2)" lisp-eval
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] unit-test
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! { 3 } [
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! "((lambda (x) (if x (begin (+ 1 2)) (- 3 5))) #t)" lisp-eval
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! "((lambda (x) (if x (+ 1 2) (- 3 5))) #t)" lisp-eval
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! ] unit-test
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] with-interactive-vocabs
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@ -3,7 +3,7 @@
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USING: kernel peg sequences arrays strings combinators.lib
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namespaces combinators math locals locals.private locals.backend accessors
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vectors syntax lisp.parser assocs parser sequences.lib words
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quotations fry lists summary combinators.short-circuit ;
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quotations fry lists summary combinators.short-circuit continuations ;
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IN: lisp
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DEFER: convert-form
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@ -12,78 +12,85 @@ DEFER: lookup-var
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DEFER: lookup-macro
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DEFER: lisp-macro?
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DEFER: lisp-var?
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DEFER: macro-expand
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DEFER: define-lisp-macro
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ERROR: no-such-var variable-name ;
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M: no-such-var summary drop "No such variable" ;
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! Functions to convert s-exps to quotations
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: convert-body ( cons -- quot )
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[ ] [ convert-form compose ] foldl ; inline
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: convert-begin ( cons -- quot )
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cdr [ convert-form ] [ ] lmap-as '[ , [ call ] each ] ;
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: convert-cond ( cons -- quot )
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cdr [ 2car [ convert-form ] bi@ [ '[ @ call ] ] dip 2array ]
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{ } lmap-as '[ , cond ] ;
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: convert-cond ( cons -- quot )
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cdr [ 2car [ convert-form ] bi@ 2array ]
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{ } lmap-as '[ , cond ] ;
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: convert-general-form ( cons -- quot )
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uncons [ convert-body ] [ convert-form ] bi* '[ , @ funcall ] ;
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! words for convert-lambda
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<PRIVATE
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: localize-body ( assoc body -- assoc newbody )
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! words for convert-lambda
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<PRIVATE
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: localize-body ( assoc body -- newbody )
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{
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{ [ dup list? ] [ [ lisp-symbol? ] pick '[ [ name>> , at ] [ ] bi or ] traverse ] }
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{ [ dup lisp-symbol? ] [ name>> over at ] }
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[ ]
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{ [ dup list? ] [ [ lisp-symbol? ] rot '[ [ name>> , at ] [ ] bi or ] traverse ] }
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{ [ dup lisp-symbol? ] [ name>> swap at ] }
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[ nip ]
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} cond ;
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: localize-lambda ( body vars -- newvars newbody )
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make-locals dup push-locals swap
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[ swap localize-body convert-form swap pop-locals ] dip swap ;
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swap [ make-locals dup push-locals ] dip
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dupd [ localize-body convert-form ] with lmap>array
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>quotation swap pop-locals ;
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: split-lambda ( cons -- body-cons vars-seq )
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cdr uncons [ car ] [ [ name>> ] lmap>array ] bi* ; inline
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cdr uncons [ name>> ] lmap>array ; inline
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: rest-lambda ( body vars -- quot )
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"&rest" swap [ index ] [ remove ] 2bi
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swapd localize-lambda <lambda>
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'[ , cut '[ @ , seq>list ] call , call ] ;
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"&rest" swap [ remove ] [ index ] 2bi
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[ localize-lambda <lambda> lambda-rewrite call ] dip
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swap '[ , cut '[ @ , seq>list ] call , call call ] ;
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: normal-lambda ( body vars -- quot )
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localize-lambda <lambda> lambda-rewrite [ compose call ] compose 1quotation ;
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localize-lambda <lambda> lambda-rewrite '[ @ compose call call ] 1quotation ;
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PRIVATE>
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: convert-lambda ( cons -- quot )
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: convert-lambda ( cons -- quot )
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split-lambda "&rest" over member? [ rest-lambda ] [ normal-lambda ] if ;
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: convert-quoted ( cons -- quot )
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: convert-quoted ( cons -- quot )
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cadr 1quotation ;
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: convert-defmacro ( cons -- quot )
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cdr [ car ] keep [ convert-lambda ] [ car name>> ] bi define-lisp-macro 1quotation ;
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: macro-expand ( cons -- quot )
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uncons [ list>seq >quotation ] [ lookup-macro ] bi* call call ;
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: (expand-macros) ( cons -- cons )
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[ dup list? [ (expand-macros) dup car lisp-macro? [ macro-expand ] when ] when ] lmap ;
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: expand-macros ( cons -- cons )
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dup list? [ (expand-macros) dup car lisp-macro? [ macro-expand ] when ] when ;
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: convert-begin ( cons -- quot )
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cdr [ convert-form ] [ ] lmap-as [ 1 tail* ] [ but-last ] bi
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[ '[ { } , with-datastack drop ] ] map prepend '[ , [ call ] each ] ;
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: form-dispatch ( cons lisp-symbol -- quot )
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name>>
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{ { "lambda" [ convert-lambda ] }
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{ "defmacro" [ convert-defmacro ] }
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{ "quote" [ convert-quoted ] }
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{ "begin" [ convert-begin ] }
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{ "cond" [ convert-cond ] }
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{ "begin" [ convert-begin ] }
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[ drop convert-general-form ]
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} case ;
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: convert-list-form ( cons -- quot )
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: convert-list-form ( cons -- quot )
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dup car
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{ { [ dup lisp-macro? ] [ drop macro-expand ] }
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{ [ dup lisp-symbol? ] [ form-dispatch ] }
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{
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{ [ dup lisp-symbol? ] [ form-dispatch ] }
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[ drop convert-general-form ]
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} cond ;
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: convert-form ( lisp-form -- quot )
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{
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{ [ dup cons? ] [ convert-list-form ] }
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@ -91,58 +98,52 @@ PRIVATE>
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{ [ dup lisp-symbol? ] [ '[ , lookup-var ] ] }
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[ 1quotation ]
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} cond ;
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: compile-form ( lisp-ast -- quot )
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convert-form lambda-rewrite call ; inline
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: macro-expand ( cons -- quot )
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uncons [ list>seq [ ] like ] [ lookup-macro lambda-rewrite call ] bi* call compile-form call ;
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: lisp-string>factor ( str -- quot )
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lisp-expr compile-form ;
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: lisp-eval ( str -- * )
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lisp-string>factor call ;
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lisp-expr expand-macros convert-form ;
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: lisp-eval ( str -- * )
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lisp-string>factor call ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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SYMBOL: lisp-env
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SYMBOL: macro-env
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ERROR: no-such-var variable-name ;
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M: no-such-var summary drop "No such variable" ;
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: init-env ( -- )
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H{ } clone lisp-env set
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H{ } clone macro-env set ;
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: lisp-define ( quot name -- )
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lisp-env get set-at ;
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: defun ( name quot -- name )
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: defun ( name quot -- name )
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over name>> lisp-define ;
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: lisp-get ( name -- word )
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dup lisp-env get at [ ] [ no-such-var ] ?if ;
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lisp-env get at ;
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: lookup-var ( lisp-symbol -- quot )
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name>> lisp-get ;
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[ name>> ] [ lisp-var? ] bi [ lisp-get ] [ no-such-var ] if ;
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: lisp-var? ( lisp-symbol -- ? )
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dup lisp-symbol? [ name>> lisp-env get key? ] [ drop f ] if ;
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: funcall-arg-list ( args -- newargs )
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[ ] [ dup \ funcall = [ drop 2 cut* [ funcall ] compose call ] when suffix ] reduce ;
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: funcall ( quot sym -- * )
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[ funcall-arg-list ] dip
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[ 1array [ call ] with-datastack >quotation ] dip
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dup lisp-symbol? [ lookup-var ] when curry call ; inline
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: define-primitive ( name vocab word -- )
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swap lookup 1quotation '[ , compose call ] swap lisp-define ; ! '[ , compose call ] swap lisp-define ;
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: define-primitive ( name vocab word -- )
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swap lookup 1quotation '[ , compose call ] swap lisp-define ;
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: lookup-macro ( lisp-symbol -- lambda )
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name>> macro-env get at ;
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: define-lisp-macro ( quot name -- )
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macro-env get set-at ;
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: lisp-macro? ( car -- ? )
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dup lisp-symbol? [ name>> macro-env get key? ] [ drop f ] if ;
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@ -100,7 +100,7 @@ M: object nil? drop f ;
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[ lmap>array ] dip like ;
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: cons>seq ( cons -- array )
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[ dup cons? [ cons>seq ] when ] lmap>array ;
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[ dup cons? [ cons>seq ] when dup nil? [ drop { } ] when ] lmap>array ;
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: list>seq ( list -- array )
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[ ] lmap>array ;
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