"********************************************************************************** * The License * * * * The user is free to produce commercial applications with the software, to * * distribute these applications in source or binary form, and to charge monies * * for them as he sees fit and in concordance with the laws of the land subject * * to the following license. * * * * 1. The license applies to all the software and all derived software and * * must appear on such. * * * * 2. It is illegal to distribute the software without this license attached * * to it and use of the software implies agreement with the license as such. * * It is illegal for anyone who is not the copyright holder to tamper with * * or change the license. * * * * 3. Neither the names of Lambda Associates or the copyright holder may be used * * to endorse or promote products built using the software without specific * * prior written permission from the copyright holder. * * * * 4. That possession of this license does not confer on the copyright holder * * any special contractual obligation towards the user. That in no event * * shall the copyright holder be liable for any direct, indirect, incidental, * * special, exemplary or consequential damages (including but not limited * * to procurement of substitute goods or services, loss of use, data, * * interruption), however caused and on any theory of liability, whether in * * contract, strict liability or tort (including negligence) arising in any * * way out of the use of the software, even if advised of the possibility of * * such damage. * * * * 5. It is permitted for the user to change the software, for the purpose of * * improving performance, correcting an error, or porting to a new platform, * * and distribute the derived version of Shen provided the resulting program * * conforms in all respects to the Shen standard and is issued under that * * title. The user must make it clear with his distribution that he/she is * * the author of the changes and what these changes are and why. * * * * 6. Derived versions of this software in whatever form are subject to the same * * restrictions. In particular it is not permitted to make derived copies of * * this software which do not conform to the Shen standard or appear under a * * different title. * * * * It is permitted to distribute versions of Shen which incorporate libraries, * * graphics or other facilities which are not part of the Shen standard. * * * * For an explication of this license see www.shenlanguage.org/license.htm which * * explains this license in full. * * * ***************************************************************************************** "(defun shen.datatype-error (V1585) (cond ((and (cons? V1585) (and (cons? (tl V1585)) (= () (tl (tl V1585))))) (simple-error (cn "datatype syntax error here: " (shen.app (shen.next-50 50 (hd V1585)) " " shen.a)))) (true (shen.sys-error shen.datatype-error)))) (defun shen. (V1590) (let Result (let Parse_shen. (shen. V1590) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons (shen.hdtl Parse_shen.) (shen.hdtl Parse_shen.))) (fail))) (fail))) (if (= Result (fail)) (let Result (let Parse_ ( V1590) (if (not (= (fail) Parse_)) (shen.pair (hd Parse_) ()) (fail))) (if (= Result (fail)) (fail) Result)) Result))) (defun shen. (V1595) (let Result (let Parse_shen. (shen. V1595) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.sequent shen.single (cons (shen.hdtl Parse_shen.) (cons (shen.hdtl Parse_shen.) (cons (shen.hdtl Parse_shen.) ()))))) (fail))) (fail))) (fail))) (fail))) (if (= Result (fail)) (let Result (let Parse_shen. (shen. V1595) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.sequent shen.double (cons (shen.hdtl Parse_shen.) (cons (shen.hdtl Parse_shen.) (cons (shen.hdtl Parse_shen.) ()))))) (fail))) (fail))) (fail))) (fail))) (if (= Result (fail)) (fail) Result)) Result))) (defun shen. (V1600) (let Result (let Parse_shen. (shen. V1600) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons (shen.hdtl Parse_shen.) (shen.hdtl Parse_shen.))) (fail))) (fail))) (if (= Result (fail)) (let Result (let Parse_ ( V1600) (if (not (= (fail) Parse_)) (shen.pair (hd Parse_) ()) (fail))) (if (= Result (fail)) (fail) Result)) Result))) (defun shen. (V1605) (let Result (if (and (cons? (hd V1605)) (= if (hd (hd V1605)))) (let Parse_shen. (shen. (shen.pair (tl (hd V1605)) (shen.hdtl V1605))) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons if (cons (shen.hdtl Parse_shen.) ()))) (fail))) (fail)) (if (= Result (fail)) (let Result (if (and (cons? (hd V1605)) (= let (hd (hd V1605)))) (let Parse_shen. (shen. (shen.pair (tl (hd V1605)) (shen.hdtl V1605))) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons let (cons (shen.hdtl Parse_shen.) (cons (shen.hdtl Parse_shen.) ())))) (fail))) (fail))) (fail)) (if (= Result (fail)) (fail) Result)) Result))) (defun shen. (V1610) (let Result (if (cons? (hd V1610)) (let Parse_X (hd (hd V1610)) (if (variable? Parse_X) (shen.pair (hd (shen.pair (tl (hd V1610)) (shen.hdtl V1610))) Parse_X) (fail))) (fail)) (if (= Result (fail)) (fail) Result))) (defun shen. (V1615) (let Result (if (cons? (hd V1615)) (let Parse_X (hd (hd V1615)) (if (not (or (element? Parse_X (cons >> (cons ; ()))) (or (shen.singleunderline? Parse_X) (shen.doubleunderline? Parse_X)))) (shen.pair (hd (shen.pair (tl (hd V1615)) (shen.hdtl V1615))) (shen.remove-bar Parse_X)) (fail))) (fail)) (if (= Result (fail)) (fail) Result))) (defun shen.remove-bar (V1616) (cond ((and (cons? V1616) (and (cons? (tl V1616)) (and (cons? (tl (tl V1616))) (and (= () (tl (tl (tl V1616)))) (= (hd (tl V1616)) bar!))))) (cons (hd V1616) (hd (tl (tl V1616))))) ((cons? V1616) (cons (shen.remove-bar (hd V1616)) (shen.remove-bar (tl V1616)))) (true V1616))) (defun shen. (V1621) (let Result (let Parse_shen. (shen. V1621) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons (shen.hdtl Parse_shen.) (shen.hdtl Parse_shen.))) (fail))) (fail))) (fail))) (if (= Result (fail)) (let Result (let Parse_ ( V1621) (if (not (= (fail) Parse_)) (shen.pair (hd Parse_) ()) (fail))) (if (= Result (fail)) (fail) Result)) Result))) (defun shen. (V1626) (let Result (if (cons? (hd V1626)) (let Parse_X (hd (hd V1626)) (if (= Parse_X ;) (shen.pair (hd (shen.pair (tl (hd V1626)) (shen.hdtl V1626))) shen.skip) (fail))) (fail)) (if (= Result (fail)) (fail) Result))) (defun shen. (V1631) (let Result (if (and (cons? (hd V1631)) (= ! (hd (hd V1631)))) (shen.pair (hd (shen.pair (tl (hd V1631)) (shen.hdtl V1631))) !) (fail)) (if (= Result (fail)) (let Result (let Parse_shen. (shen. V1631) (if (not (= (fail) Parse_shen.)) (if (and (cons? (hd Parse_shen.)) (= >> (hd (hd Parse_shen.)))) (let Parse_shen. (shen. (shen.pair (tl (hd Parse_shen.)) (shen.hdtl Parse_shen.))) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.sequent (shen.hdtl Parse_shen.) (shen.hdtl Parse_shen.))) (fail))) (fail)) (fail))) (if (= Result (fail)) (let Result (let Parse_shen. (shen. V1631) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.sequent () (shen.hdtl Parse_shen.))) (fail))) (if (= Result (fail)) (fail) Result)) Result)) Result))) (defun shen. (V1636) (let Result (let Parse_shen. (shen. V1636) (if (not (= (fail) Parse_shen.)) (if (and (cons? (hd Parse_shen.)) (= >> (hd (hd Parse_shen.)))) (let Parse_shen. (shen. (shen.pair (tl (hd Parse_shen.)) (shen.hdtl Parse_shen.))) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.sequent (shen.hdtl Parse_shen.) (shen.hdtl Parse_shen.))) (fail))) (fail))) (fail)) (fail))) (if (= Result (fail)) (let Result (let Parse_shen. (shen. V1636) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.sequent () (shen.hdtl Parse_shen.))) (fail))) (fail))) (if (= Result (fail)) (fail) Result)) Result))) (defun shen.sequent (V1637 V1638) (@p V1637 V1638)) (defun shen. (V1643) (let Result (let Parse_shen. (shen. V1643) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (let Parse_shen. (shen. Parse_shen.) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons (shen.hdtl Parse_shen.) (shen.hdtl Parse_shen.))) (fail))) (fail))) (fail))) (if (= Result (fail)) (let Result (let Parse_shen. (shen. V1643) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons (shen.hdtl Parse_shen.) ())) (fail))) (if (= Result (fail)) (let Result (let Parse_ ( V1643) (if (not (= (fail) Parse_)) (shen.pair (hd Parse_) ()) (fail))) (if (= Result (fail)) (fail) Result)) Result)) Result))) (defun shen. (V1648) (let Result (if (cons? (hd V1648)) (let Parse_X (hd (hd V1648)) (if (= Parse_X (intern ",")) (shen.pair (hd (shen.pair (tl (hd V1648)) (shen.hdtl V1648))) shen.skip) (fail))) (fail)) (if (= Result (fail)) (fail) Result))) (defun shen. (V1653) (let Result (let Parse_shen. (shen. V1653) (if (not (= (fail) Parse_shen.)) (if (and (cons? (hd Parse_shen.)) (= : (hd (hd Parse_shen.)))) (let Parse_shen. (shen. (shen.pair (tl (hd Parse_shen.)) (shen.hdtl Parse_shen.))) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (cons (shen.curry (shen.hdtl Parse_shen.)) (cons : (cons (shen.normalise-type (shen.hdtl Parse_shen.)) ())))) (fail))) (fail)) (fail))) (if (= Result (fail)) (let Result (let Parse_shen. (shen. V1653) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.hdtl Parse_shen.)) (fail))) (if (= Result (fail)) (fail) Result)) Result))) (defun shen. (V1658) (let Result (let Parse_shen. (shen. V1658) (if (not (= (fail) Parse_shen.)) (shen.pair (hd Parse_shen.) (shen.curry-type (shen.hdtl Parse_shen.))) (fail))) (if (= Result (fail)) (fail) Result))) (defun shen. (V1663) (let Result (if (cons? (hd V1663)) (let Parse_X (hd (hd V1663)) (if (shen.doubleunderline? Parse_X) (shen.pair (hd (shen.pair (tl (hd V1663)) (shen.hdtl V1663))) Parse_X) (fail))) (fail)) (if (= Result (fail)) (fail) Result))) (defun shen. (V1668) (let Result (if (cons? (hd V1668)) (let Parse_X (hd (hd V1668)) (if (shen.singleunderline? Parse_X) (shen.pair (hd (shen.pair (tl (hd V1668)) (shen.hdtl V1668))) Parse_X) (fail))) (fail)) (if (= Result (fail)) (fail) Result))) (defun shen.singleunderline? (V1669) (and (symbol? V1669) (shen.sh? (str V1669)))) (defun shen.sh? (V1670) (cond ((= "_" V1670) true) (true (and (= (pos V1670 0) "_") (shen.sh? (tlstr V1670)))))) (defun shen.doubleunderline? (V1671) (and (symbol? V1671) (shen.dh? (str V1671)))) (defun shen.dh? (V1672) (cond ((= "=" V1672) true) (true (and (= (pos V1672 0) "=") (shen.dh? (tlstr V1672)))))) (defun shen.process-datatype (V1673 V1674) (shen.remember-datatype (shen.s-prolog (shen.rules->horn-clauses V1673 V1674)))) (defun shen.remember-datatype (V1679) (cond ((cons? V1679) (do (set shen.*datatypes* (adjoin (hd V1679) (value shen.*datatypes*))) (do (set shen.*alldatatypes* (adjoin (hd V1679) (value shen.*alldatatypes*))) (hd V1679)))) (true (shen.sys-error shen.remember-datatype)))) (defun shen.rules->horn-clauses (V1682 V1683) (cond ((= () V1683) ()) ((and (cons? V1683) (and (tuple? (hd V1683)) (= shen.single (fst (hd V1683))))) (cons (shen.rule->horn-clause V1682 (snd (hd V1683))) (shen.rules->horn-clauses V1682 (tl V1683)))) ((and (cons? V1683) (and (tuple? (hd V1683)) (= shen.double (fst (hd V1683))))) (shen.rules->horn-clauses V1682 (append (shen.double->singles (snd (hd V1683))) (tl V1683)))) (true (shen.sys-error shen.rules->horn-clauses)))) (defun shen.double->singles (V1684) (cons (shen.right-rule V1684) (cons (shen.left-rule V1684) ()))) (defun shen.right-rule (V1685) (@p shen.single V1685)) (defun shen.left-rule (V1686) (cond ((and (cons? V1686) (and (cons? (tl V1686)) (and (cons? (tl (tl V1686))) (and (tuple? (hd (tl (tl V1686)))) (and (= () (fst (hd (tl (tl V1686))))) (= () (tl (tl (tl V1686))))))))) (let Q (gensym Qv) (let NewConclusion (@p (cons (snd (hd (tl (tl V1686)))) ()) Q) (let NewPremises (cons (@p (map shen.right->left (hd (tl V1686))) Q) ()) (@p shen.single (cons (hd V1686) (cons NewPremises (cons NewConclusion ())))))))) (true (shen.sys-error shen.left-rule)))) (defun shen.right->left (V1691) (cond ((and (tuple? V1691) (= () (fst V1691))) (snd V1691)) (true (simple-error "syntax error with ========== ")))) (defun shen.rule->horn-clause (V1692 V1693) (cond ((and (cons? V1693) (and (cons? (tl V1693)) (and (cons? (tl (tl V1693))) (and (tuple? (hd (tl (tl V1693)))) (= () (tl (tl (tl V1693)))))))) (cons (shen.rule->horn-clause-head V1692 (snd (hd (tl (tl V1693))))) (cons :- (cons (shen.rule->horn-clause-body (hd V1693) (hd (tl V1693)) (fst (hd (tl (tl V1693))))) ())))) (true (shen.sys-error shen.rule->horn-clause)))) (defun shen.rule->horn-clause-head (V1694 V1695) (cons V1694 (cons (shen.mode-ify V1695) (cons Context_1957 ())))) (defun shen.mode-ify (V1696) (cond ((and (cons? V1696) (and (cons? (tl V1696)) (and (= : (hd (tl V1696))) (and (cons? (tl (tl V1696))) (= () (tl (tl (tl V1696)))))))) (cons mode (cons (cons (hd V1696) (cons : (cons (cons mode (cons (hd (tl (tl V1696))) (cons + ()))) ()))) (cons - ())))) (true V1696))) (defun shen.rule->horn-clause-body (V1697 V1698 V1699) (let Variables (map shen.extract_vars V1699) (let Predicates (map (lambda X (gensym shen.cl)) V1699) (let SearchLiterals (shen.construct-search-literals Predicates Variables Context_1957 Context1_1957) (let SearchClauses (shen.construct-search-clauses Predicates V1699 Variables) (let SideLiterals (shen.construct-side-literals V1697) (let PremissLiterals (map (lambda X (shen.construct-premiss-literal X (empty? V1699))) V1698) (append SearchLiterals (append SideLiterals PremissLiterals))))))))) (defun shen.construct-search-literals (V1704 V1705 V1706 V1707) (cond ((and (= () V1704) (= () V1705)) ()) (true (shen.csl-help V1704 V1705 V1706 V1707)))) (defun shen.csl-help (V1710 V1711 V1712 V1713) (cond ((and (= () V1710) (= () V1711)) (cons (cons bind (cons ContextOut_1957 (cons V1712 ()))) ())) ((and (cons? V1710) (cons? V1711)) (cons (cons (hd V1710) (cons V1712 (cons V1713 (hd V1711)))) (shen.csl-help (tl V1710) (tl V1711) V1713 (gensym Context)))) (true (shen.sys-error shen.csl-help)))) (defun shen.construct-search-clauses (V1714 V1715 V1716) (cond ((and (= () V1714) (and (= () V1715) (= () V1716))) shen.skip) ((and (cons? V1714) (and (cons? V1715) (cons? V1716))) (do (shen.construct-search-clause (hd V1714) (hd V1715) (hd V1716)) (shen.construct-search-clauses (tl V1714) (tl V1715) (tl V1716)))) (true (shen.sys-error shen.construct-search-clauses)))) (defun shen.construct-search-clause (V1717 V1718 V1719) (shen.s-prolog (cons (shen.construct-base-search-clause V1717 V1718 V1719) (cons (shen.construct-recursive-search-clause V1717 V1718 V1719) ())))) (defun shen.construct-base-search-clause (V1720 V1721 V1722) (cons (cons V1720 (cons (cons (shen.mode-ify V1721) In_1957) (cons In_1957 V1722))) (cons :- (cons () ())))) (defun shen.construct-recursive-search-clause (V1723 V1724 V1725) (cons (cons V1723 (cons (cons Assumption_1957 Assumptions_1957) (cons (cons Assumption_1957 Out_1957) V1725))) (cons :- (cons (cons (cons V1723 (cons Assumptions_1957 (cons Out_1957 V1725))) ()) ())))) (defun shen.construct-side-literals (V1730) (cond ((= () V1730) ()) ((and (cons? V1730) (and (cons? (hd V1730)) (and (= if (hd (hd V1730))) (and (cons? (tl (hd V1730))) (= () (tl (tl (hd V1730)))))))) (cons (cons when (tl (hd V1730))) (shen.construct-side-literals (tl V1730)))) ((and (cons? V1730) (and (cons? (hd V1730)) (and (= let (hd (hd V1730))) (and (cons? (tl (hd V1730))) (and (cons? (tl (tl (hd V1730)))) (= () (tl (tl (tl (hd V1730)))))))))) (cons (cons is (tl (hd V1730))) (shen.construct-side-literals (tl V1730)))) ((cons? V1730) (shen.construct-side-literals (tl V1730))) (true (shen.sys-error shen.construct-side-literals)))) (defun shen.construct-premiss-literal (V1735 V1736) (cond ((tuple? V1735) (cons shen.t* (cons (shen.recursive_cons_form (snd V1735)) (cons (shen.construct-context V1736 (fst V1735)) ())))) ((= ! V1735) (cons cut (cons Throwcontrol ()))) (true (shen.sys-error shen.construct-premiss-literal)))) (defun shen.construct-context (V1737 V1738) (cond ((and (= true V1737) (= () V1738)) Context_1957) ((and (= false V1737) (= () V1738)) ContextOut_1957) ((cons? V1738) (cons cons (cons (shen.recursive_cons_form (hd V1738)) (cons (shen.construct-context V1737 (tl V1738)) ())))) (true (shen.sys-error shen.construct-context)))) (defun shen.recursive_cons_form (V1739) (cond ((cons? V1739) (cons cons (cons (shen.recursive_cons_form (hd V1739)) (cons (shen.recursive_cons_form (tl V1739)) ())))) (true V1739))) (defun preclude (V1740) (let FilterDatatypes (set shen.*datatypes* (difference (value shen.*datatypes*) V1740)) (value shen.*datatypes*))) (defun include (V1741) (let ValidTypes (intersection V1741 (value shen.*alldatatypes*)) (let NewDatatypes (set shen.*datatypes* (union ValidTypes (value shen.*datatypes*))) (value shen.*datatypes*)))) (defun preclude-all-but (V1742) (preclude (difference (value shen.*alldatatypes*) V1742))) (defun include-all-but (V1743) (include (difference (value shen.*alldatatypes*) V1743))) (defun shen.synonyms-help (V1748) (cond ((= () V1748) synonyms) ((and (cons? V1748) (cons? (tl V1748))) (do (shen.pushnew (cons (hd V1748) (hd (tl V1748))) shen.*synonyms*) (shen.synonyms-help (tl (tl V1748))))) (true (simple-error (cn "odd number of synonyms " ""))))) (defun shen.pushnew (V1749 V1750) (if (element? V1749 (value V1750)) (value V1750) (set V1750 (cons V1749 (value V1750)))))