Fix hash and struct docs

lens/hash/main.rkt

@@ -1,10 +1,12 @@
 #lang racket/base
 
 
-(require "hash.rkt"
-         "pick.rkt")
+(require "nested.rkt"
+         "pick.rkt"
+         "ref.rkt")
 
 
 (provide
- (all-from-out "hash.rkt"
-               "pick.rkt"))
+ (all-from-out "nested.rkt"
+               "pick.rkt"
+               "ref.rkt"))

lens/hash/main.scrbl

@@ -0,0 +1,7 @@
+#lang scribble/manual
+
+@title{Hash Lenses}
+
+@include-section["ref.scrbl"]
+@include-section["nested.scrbl"]
+@include-section["pick.scrbl"]

lens/hash/nested.rkt

@@ -1,36 +1,25 @@
-#lang racket/base
+#lang racket
 
-(require racket/contract
-         fancy-app
-         "../base/main.rkt"
+(require "../base/main.rkt"
          "../compound/main.rkt"
          "../util/immutable.rkt"
-         "../util/rest-contract.rkt")
+         "../util/rest-contract.rkt"
+         "ref.rkt")
 
 (module+ test
-  (require rackunit))
+  (require rackunit
+           fancy-app))
 
 (provide
  (contract-out
-  [hash-ref-lens (-> any/c (lens/c immutable-hash? any/c))]
   [hash-ref-nested-lens (rest-> any/c (lens/c immutable-hash? any/c))]))
 
 
-(define (hash-ref-lens key)
-  (make-lens (hash-ref _ key)
-             (hash-set _ key _)))
-
 (define (hash-ref-nested-lens . keys)
   (apply lens-thrush (map hash-ref-lens keys)))
 
 (module+ test
-  (define a (hash-ref-lens 'a))
   (define a-x (hash-ref-nested-lens 'a 'x))
-  (let-lens [val ctxt] a (hash 'a 1 'b 2 'c 3)
-    (check-equal? val 1)
-    (check-equal? (ctxt 100) (hash 'a 100 'b 2 'c 3)))
-  (check-equal? (lens-transform/list (hash 'a 1 'b 2 'c 3) a (* 10 _))
-                (hash 'a 10 'b 2 'c 3))
   (let-lens [val ctxt] a-x (hash 'a (hash 'x 1 'y 2) 'b (hash 'z 3))
     (check-equal? val 1)
     (check-equal? (ctxt 100) (hash 'a (hash 'x 100 'y 2) 'b (hash 'z 3))))

lens/hash/nested.scrbl

@@ -1,19 +1,8 @@
 #lang scribble/manual
 
-@(require "doc-util/main.rkt")
+@(require "../doc-util/main.rkt")
 
 
-@title{Hash Lenses}
-
-@defproc[(hash-ref-lens [key any/c]) lens?]{
-  Constructs a lens that targets hashes and views the value
-  of @racket[key].
-  @lenses-examples[
-    (define foo-lens (hash-ref-lens 'foo))
-    (lens-view foo-lens (hash 'foo 10 'bar 20))
-    (lens-set foo-lens (hash 'foo 10 'bar 20) 1000)
-]}
-
 @defproc[(hash-ref-nested-lens [key any/c] ...) lens?]{
   Contructs a lens that targets hashes with nested hashes
   as values and views the value obtained by using each

lens/hash/pick.rkt

@@ -6,7 +6,7 @@
          "../compound/join-hash.rkt"
          "../util/immutable.rkt"
          "../util/rest-contract.rkt"
-         "hash.rkt")
+         "ref.rkt")
 
 (module+ test
   (require rackunit))

lens/hash/pick.scrbl

@@ -1,8 +1,7 @@
 #lang scribble/manual
 
-@(require "doc-util/main.rkt")
+@(require "../doc-util/main.rkt")
 
-@title{Viewing a subset of a hash table by key}
 
 @defproc[(hash-pick-lens [key any/c] ...) lens?]{
   Creates a lens that views a subset of the target hash-table with the given

lens/hash/ref.rkt

@@ -0,0 +1,26 @@
+#lang racket/base
+
+(require racket/contract
+         fancy-app
+         "../base/main.rkt"
+         "../util/immutable.rkt")
+
+(module+ test
+  (require rackunit))
+
+(provide
+ (contract-out
+  [hash-ref-lens (-> any/c (lens/c immutable-hash? any/c))]))
+
+
+(define (hash-ref-lens key)
+  (make-lens (hash-ref _ key)
+             (hash-set _ key _)))
+
+(module+ test
+  (define a (hash-ref-lens 'a))
+  (let-lens [val ctxt] a (hash 'a 1 'b 2 'c 3)
+    (check-equal? val 1)
+    (check-equal? (ctxt 100) (hash 'a 100 'b 2 'c 3)))
+  (check-equal? (lens-transform/list (hash 'a 1 'b 2 'c 3) a (* 10 _))
+                (hash 'a 10 'b 2 'c 3)))

lens/hash/ref.scrbl

@@ -0,0 +1,13 @@
+#lang scribble/manual
+
+@(require "../doc-util/main.rkt")
+
+
+@defproc[(hash-ref-lens [key any/c]) lens?]{
+  Constructs a lens that targets hashes and views the value
+  of @racket[key].
+  @lenses-examples[
+    (define foo-lens (hash-ref-lens 'foo))
+    (lens-view foo-lens (hash 'foo 10 'bar 20))
+    (lens-set foo-lens (hash 'foo 10 'bar 20) 1000)
+]}

lens/main.rkt

@@ -3,12 +3,12 @@
 (require
   "base/main.rkt"
   "compound/main.rkt"
+  "dict.rkt"
   "hash/main.rkt"
   "list/main.rkt"
-  "struct/main.rkt"
-  "dict.rkt"
   "stream.rkt"
   "string.rkt"
+  "struct/main.rkt"
   "vector/main.rkt")
 
 (provide
@@ -16,13 +16,13 @@
   (all-from-out
    "base/main.rkt"
    "compound/main.rkt"
+   "dict.rkt"
    "hash/main.rkt"
    "list/main.rkt"
-   "struct/main.rkt"
-   "vector/main.rkt"
-   "dict.rkt"
    "stream.rkt"
-   "string.rkt")
+   "string.rkt"
+   "struct/main.rkt"
+   "vector/main.rkt")
   focus-lens
   drop-lens
   take-lens

lens/struct/struct.scrbl

@@ -2,11 +2,10 @@
 
 @(require "../doc-util/main.rkt")
 
-@defmodule[unstable/lens/struct]
 
 @defform[(define-struct-lenses struct-id)]{
   Given a @racket[struct-id], defines a lens for each of its fields.
-@lenses-unstable-examples[
+  @lenses-examples[
     (struct foo (a b c) #:transparent)
     (define-struct-lenses foo)
     (lens-view foo-a-lens (foo 1 2 3))
@@ -15,7 +14,7 @@ Given a @racket[struct-id], defines a lens for each of its fields.
 
 @defform[(struct/lens struct-id (field-spec ...) struct-option ...)]{
   Equivalent to @racket[struct] and @racket[define-struct-lenses] combined.
-@lenses-unstable-examples[
+  @lenses-examples[
     (struct/lens foo (a b c) #:transparent)
     (lens-view foo-a-lens (foo 1 2 3))
     (lens-set foo-a-lens (foo 1 2 3) 100)