While here, also add the rather useful documentation.
Changes since 207:
Several small errors in the ProfessorJ compiler have been corrected.
Additionally, the native method interface has been updated to
provide more access to class members by the native method.
* The interfaces and implementations for several HtDP and HtDCH
teachpacks have changed:
+ the World class for HtDCH now supplies 'draw' and 'erase' methods
+ its event callbacks are guaranteed to call erase before and draw
after handling a tick or keyboard event
+ the world.ss teachpack provides a nw:rectangle function for
creating rectangles whose pinhole is in the northwest corner.
* Oleg Kiselyov's SSAX/SXML is included in the distribution.
The SSAX/SXML libraries provides functions for reading, writing and
manipulating XML data. In addition, the package supports the
definition of XML languages and exports machinery for transforming
XML documents based on concise specifications. SSAX/SXML is the
foundation for a variety of other XML packages in Scheme. For more
information, see http://ssax.sourceforge.net/ and the documentation
in the "ssax" collection.
* Swindle is now included and maintained with PLT Scheme.
Swindle is an extension of PLT Scheme. The main feature is a
CLOS-like object system based on Tiny-CLOS from Xerox. Additional
syntactic extensions include: :keyword values and optional CL-style
argument lists; syntactic sugar for `define's and `let's; generic
`set!'; `defsubst' & `letsubst' for defining simple macros,
`letsyntax', `letsubst' and `letmacro' than can bind identifier
macros; a list-comprehension macro `list-of' with an extensive
generic version `collect'; an `echo' mechanism for complex output
formatting including list iterations; customizing printings via a
`print-object' generic; `amb', adopted from Dorai's TYSiFD, and
more.
Like Scheme in DrScheme, Swindle has several language levels. It is
also possible to use its features on a selective basis.
Those extensions that are not directly related to Tiny CLOS are
likely to migrate into MzLib.
- Wizards for ProfessorJ added
+ union wizard
+ class wizard
- Check Syntax disabled in professorJ languages.
- Help Desk searching is now language-sensitive.
- Check syntax is now integrated (better) with the syntax
colorer.
- Check Syntax now distinguishes between require'd
and locally defined identifiers.
- added the ability to specify a command-line to the module
language.
- Help Desk's status messages are now in the frame and
it's break button is also in the frame (no more modal
dialog)
- Check Syntax now does a better job of navigating amoung
occurrences of a single variable. The popup menu lets you
go from a bound occurrence to a binding occurrence and
from a binding occurrence to the next binding occurrence.
Also added two keystrokes: c-x;n to go to the next bound
occurrence and c-x;b to to the binding occurrence.
- show menu => view menu, added show/hide for the toolbar
- multi file search works much bching languages color the portion of the program
that has not been tested in dark red (using a simple
syntactic coverage criterion -- dark red means untested,
but not dark red doesn't mean fully tested, of course).
- added a test coverage annotation for other languages in
the "details" portion of the languages dialog; run the
program and it colors the code that was executed in
green and code that wasn't executed in red.
- fixed up help desk fonts, so that the font size in help
desk is now linked to the font size in drscheme proper.
- added support for editor modes to drscheme.
- drscheme shows the stack via arrows on the program text
when an error occurs (and debugging is on)
- added to special menu item: "insert delta" (to mean
define) in parallel to the insert lambda menu item.
- framework's scheme-mode font changed to be in an editor
mixin.
- macos: drscheme doesn't quit when all windows are closed
anymoct -> supports multiple values using this syntax:
(-> integer? (values integer? integer?))
- parenthesis highlight color is now configurable
- integrated the module browser into the main drscheme
window. Use the show menu to open a panel on the lhs of
the drscheme window containing a DAG representing the
modules that are required (only works for programs in
modules).
- integrated Bruce Hauman's rewrite of the match.ss
library (ongoing).
- added arrows to check syntax that show the (syntactic)
tail structure of the program.
- fixed many many problems with Help Desk. Some of the
more interesting ones:
- manual downloading now works.
- bug report form is a mred window now.
- doc.txt highlighting is in the right place now
- doc.txt search restults now go to the right place
- servlets are now modules (with no more free vars)
- browser menus work properly
- urls outside of our documentation use an external browser
- eliminated many (now unecessary) redirections
- various responsiveness improvements
- help desk as a standalone web server isn't supported
anymore.
- added a status line class to the framework, which is
used for check syntax and the module browser. both show
status as the check the program and show information on
mouse-over. Also, the contour window shows you the line
under the mouse in a status line on mouse over.
- added an extra level of hierarchy to the language
dialog, but without the turn-down triangles. this helps
organize the language dialog somewhat.
- the top level function declarations in algol60 are now
available in the REPL and in the test suite tool
- Removed `Windows' menu from windows and unix versions.
- Windows installer generates Program menu shortcuts for
all users
- added test suite support for use with the How to Design
Programs
- added support for recovering autosave files when DrScheme
crashes
- the draw.ss teachpack now provides the function
get-key-event : -> Key
This function enables programmers who use the draw.ss
teachpack to write interactive drawing games.
Warning: The function fails intermittently on Mac OS X. We intend
to fix this problem in a future release.
- Help Desk users can choose whether they wish to use a
frame-based version. A toggle switch for this choice (in the
form of a link) appears on the Help Desk home page. It can
also be changed in the Help Desk configuration.
- Help Desk users can once again use the PLT internal browser;
look for the browser preference in DrScheme's preferences panel
- removed an error in MrEd for Windows that was a frequent source of
instability
- use buildlink2
- it needs MesaLib
- added missing entries into PLIST
- /usr/local, /usr/pkg --> ${PREFIX}
- modified the way of handling LDFLAGS
- and some minor stuff
Changes since our last version (103) include (but obviously
are not limited to):
New Homepage http://www.drscheme.org
drscheme:
- removed 'project manager' (use 'module' instead)
- added profiling support
- support for different natural languages
- added module browser
- added XML boxes
- new menu-items
- improved error message output
- added an emacs-like c-x c-b feature
- improved documentation
- teachpacks support macro definitions
- now prints exact real numbers as graphical fractions
- misc bug fixes
- improved create executable interface
- improved interaction between help desk and external browser
mred:
- many new key- and mouse events
- various changes (additions and removals) of different methods
- Added 'unknown/mask and 'unknown/gif bitmap types
- New load handler, text-editor-load-handler
mzscheme:
- new module system
- No object or unit system is built into MzScheme.
- The core syntax system is hygienic;
- Modules can replace units where units are used merely for namespace
control
- The `struct' form is gone, replaced by a more flexible
`make-struct-type' form
- various process procedures have been moved to a new
MzLib library, "process.ss"
- The built-in regular-expression matcher works on input ports
- The mzc compiler supports a subset of the Gambit-C foreign-function
interface
teachpack:
- Fixed bug in convert.ss
- removed: pingp-play.ss pingp.ss protect-play.ss rectangle.ss
- all exported functions are primitive operators or higher order primitives
this improves error reporting behavior in the Beginner languages
- added servlet.ss and servlet2.ss
stepper:
- Total rewrite for new syntax. Addition of test suites.
Addition of somewhat more systematic macro unwinding.
Lots of bug fixes.
