minor doc edits

svn: r7121

collects/scribble/scheme.ss

@@ -492,7 +492,7 @@
   (define (register-scheme-definition stx)
     (unless (identifier? stx)
       (error 'register-scheme-definition "not an identifier: ~e" (syntax-object->datum stx)))
-    (format "definition:~s" 
+    (format "definition:~a" 
             (let ([b (identifier-binding stx)])
               (cond
                [(not b) (format "top:~a" (syntax-e stx))]

collects/scribblings/gui/gui.scrbl

@@ -3,7 +3,15 @@
 
 @title{PLT Scheme GUI: MrEd}
 
-This manual describes MrEd.
+This reference manual describes the MrEd GUI toolbox that is part of
+ PLT Scheme. See @secref["guide:mred"] in
+ @italic{@link["../guide/index.html"]{A Guide to PLT Scheme}} for an
+ introduction to MrEd.
+
+The @scheme[(lib "mred")] module provides all of the class, interface,
+ and procedure bindings defined in this manual. The
+ @schememodname[big-gui] language (for use with @schemefont{#module})
+ extends the @schememodname[big] language with @scheme[(lib "mred")].
 
 @bold{This reference describes a potential future version of PLT Scheme.
       It does not match the current implementation.}

collects/scribblings/gui/guide.scrbl

@@ -1,7 +1,7 @@
 #reader(lib "docreader.ss" "scribble")
 @require["common.ss"]
 
-@title[#:style '(toc reveal)]{Guide}
+@title[#:style '(toc reveal)]{Overview}
 
 For documentation purposes, the MrEd toolbox is organized into three
  parts:
@@ -30,18 +30,7 @@ These three parts roughly represent layers of increasing
  sophistication. Simple GUI programs access only the windowing toolbox
  directly, more complex programs use both the windowing and drawing
  toolboxes, and large-scale applications rely on all three
- toolboxes. This three-layer view of the toolbox breaks down under
+ toolboxes.
- close scrutiny, because the windowing, drawing, and editor toolboxes
- are actually interdependent and intertwined. Nevertheless, the
- layered separation is a good approximation.
-
-All three parts are immediately available when MrEd is started, as
- well as the base class system from MzLib. The @indexed-file{mred.ss}
- library module of the @file{mred} collection provides all of the
- class, interface, and procedure names defined in this manual.  When
- MrEd starts up, it imports the @file{mred.ss} module and MzLib's
- @indexed-file{class.ss} module into the initial namespace (so no
- knowledge about modules is required to understand this manual).
 
 @local-table-of-contents[]
 

collects/scribblings/guide/guide.scrbl

@@ -121,8 +121,16 @@ constant propagation, constant folding, and inlining optimizations.
 
 
 @; ----------------------------------------------------------------------
-@section[#:tag "gui"]{Graphical User Interfaces@aux-elem{ (GUIs)}}
+@section[#:tag "guide:mred"]{Graphical User Interfaces@aux-elem{ (GUIs)}}
 
+@deftech{MrEd} is both a library and an executable. As a library,
+ @scheme[(lib "mred/mred.ss")] provides class, interface, and function
+ bindings for writing GUI programs. An an executable, @exec{mred}
+ substitutes for @exec{mzscheme} to run MrEd programs. (The
+ @exec{mzscheme} executable cannot run MrEd programs, because
+ @exec{mzscheme} does not include primitive GUI support, and because
+ some operating systems distinguish GUI applications from command-line
+ applications.)
 
 @; ----------------------------------------------------------------------
 @section[#:tag "tools"]{More Tools}