provide syntax-parse/typed-syntax as parse-typed-syntax

- but dont remove the old name
- closes #50

turnstile/examples/mlish+adhoc.rkt

@@ -675,7 +675,7 @@
     #:with out
     (cond
      [(×? #'τ_e) ;; e is tuple
-      (syntax-parse/typed-syntax #'clauses
+      (parse-typed-syntax #'clauses
        [([x ... (~datum ->) e_body]) ≫
         #:with (~× ty ...) #'τ_e
         #:fail-unless (stx-length=? #'(ty ...) #'(x ...))
@@ -689,7 +689,7 @@
              (let- ([x- (acc z)] ...) e_body-))
            ⇒ ty_body]])]
      [(List? #'τ_e) ;; e is List
-      (syntax-parse/typed-syntax #'clauses
+      (parse-typed-syntax #'clauses
        [([(~or (~and (~and xs [x ...]) (~parse rst (generate-temporary)))
                (~and (~seq (~seq x (~datum ::)) ... rst:id) (~parse xs #'())))
           (~datum ->) e_body] ...+) ≫
@@ -721,7 +721,7 @@
                (let- ([x- (acc1 z)] ... [rst- (acc2 z)]) e_body-)] ...))
            ⇒ (⊔ ty_body ...)]])]
      [else  ;; e is variant
-      (syntax-parse/typed-syntax #'clauses
+      (parse-typed-syntax #'clauses
        [([Clause:id x:id ... 
              (~optional (~seq #:when e_guard) #:defaults ([e_guard #'(ext-stlc:#%datum . #t)]))
              (~datum ->) e_c_un] ...+) ≫ ; un = unannotated with expected ty

turnstile/scribblings/reference.scrbl

@@ -32,6 +32,7 @@ and then press Control-@litchar{\}.
 
 @section{Forms}
 
+@; define-typed-syntax---------------------------------------------------------
 @defform*[
   #:literals (≫ ⊢ ⇒ ⇐ ≻ : --------)
   ((define-typed-syntax (name-id . pattern) ≫
@@ -179,7 +180,13 @@ attach type information to the top-level @tt{x} identifier, so the
 
 ]}
 
+@; parse-typed-syntax ---------------------------------------------------------
+@defform[(parse-typed-syntax stx option ... rule ...+)]{
+A @racket[syntax-parse]-like form that supports
+@racket[define-typed-syntax]-style clauses. In particular, see the
+"rule" part of @racket[define-typed-syntax]'s grammar above.}
 
+@; define-primop --------------------------------------------------------------
 @defform*[((define-primop typed-op-id τ)
            (define-primop typed-op-id : τ)
            (define-primop typed-op-id op-id τ)

turnstile/turnstile.rkt

@@ -4,7 +4,9 @@
                      -define-typed-syntax -define-syntax-category)
          define-typed-syntax define-syntax-category
          (rename-out [define-typed-syntax define-typerule])
-         (for-syntax syntax-parse/typed-syntax))
+         (for-syntax syntax-parse/typed-syntax
+                     (rename-out
+                      [syntax-parse/typed-syntax parse-typed-syntax])))
 
 (require (except-in (rename-in
                      macrotypes/typecheck