diff options
Diffstat (limited to 'src/algebra/sex.spad.pamphlet')
| -rw-r--r-- | src/algebra/sex.spad.pamphlet | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/src/algebra/sex.spad.pamphlet b/src/algebra/sex.spad.pamphlet index bb5df1f5..2beef473 100644 --- a/src/algebra/sex.spad.pamphlet +++ b/src/algebra/sex.spad.pamphlet @@ -94,6 +94,13 @@ SExpressionOf(Str, Sym, Int, Flt, Expr): Decl == Body where Decl ==> SExpressionCategory(Str, Sym, Int, Flt, Expr) Body ==> add + import %integer?: % -> Boolean from Foreign Builtin + import %string?: % -> Boolean from Foreign Builtin + import %pair?: % -> Boolean from Foreign Builtin + import %peq: (%,%) -> Boolean from Foreign Builtin + import %head: % -> % from Foreign Builtin + import %tail: % -> % from Foreign Builtin + Rep := Expr dotex:OutputForm := INTERN(".")$Lisp @@ -112,20 +119,20 @@ SExpressionOf(Str, Sym, Int, Flt, Expr): Decl == Body where paren blankSeparate l1 b1 = b2 == EQUAL(b1,b2)$Lisp - eq(b1, b2) == %peq(b1,b2)$Foreign(Builtin) + eq(b1, b2) == %peq(b1,b2) null? b == NULL(b)$Lisp atom? b == ATOM(b)$Lisp - pair? b == PAIRP(b)$Lisp + pair? b == %pair? b - list? b == PAIRP(b)$Lisp or NULL(b)$Lisp - string? b == STRINGP(b)$Lisp + list? b == pair? b or null? b + string? b == %string? b symbol? b == IDENTP(b)$Lisp - integer? b == INTP(b)$Lisp + integer? b == %integer? b float? b == RNUMP(b)$Lisp destruct b == (list? b => b pretend List %; error "Non-list") - string b == (STRINGP(b)$Lisp=> b pretend Str;error "Non-string") + string b == (%string? b => b pretend Str; error "Non-string") symbol b == (IDENTP(b)$Lisp => b pretend Sym;error "Non-symbol") float b == (RNUMP(b)$Lisp => b pretend Flt;error "Non-float") integer b == (INTP(b)$Lisp => b pretend Int;error "Non-integer") @@ -138,8 +145,8 @@ SExpressionOf(Str, Sym, Int, Flt, Expr): Decl == Body where convert(f: Flt) == f pretend % convert(e: Expr) == e pretend % - car b == CAR(b)$Lisp - cdr b == CDR(b)$Lisp + car b == %head b + cdr b == %tail b # b == LENGTH(b)$Lisp elt(b:%, i:Integer) == destruct(b).i elt(b:%, li:List Integer) == |