------------------------------
Version 202
------------------------------
GENERAL
-------
- improved the comment boxes
- interaction between Help Desk and the external browser
should be much better
------------------------------
Version 201
------------------------------
GENERAL
-------
- many misc bug fixes
- improved the create executable interface
- got rid of the "text box" and added in "comment"
boxes. commenting out code now uses those comment boxes.
- Help Desk now uses an external browser
FRAMEWORK AND TOOLS
-------------------
- contracts have moved from
(lib "specs.ss" "framework")
to
(lib "contracts.ss")
- The create-executable method of
drscheme:language:language<%> has changed. It no longer
receives the filename for the executable; instead the
method must prompt the user. See either
`drscheme:language:put-executable-file' or
`drscheme:language:create-executable-gui' for two methods
of getting a filename from the user.
------------------------------
Version 200
------------------------------
THINGS MISSING (as compared to 103)
- project manager (use `module' instead)
GENERAL
- added profiling support. DrScheme colors your program text
based on the time spent in each portion of the code.
- Added support for other natural languages for DrScheme's
GUI. French and Spanish are most up to date; German and
Danish are also included (but incomplete).
- added a module browser for seeing the entire program and
dependencies among modules in a single window.
- added XML boxes (a quasi-quote/unquote feature for XML
using embedded editors). See the DrScheme manual for
details.
- added a code ``contour'' window that is
visible along the rhs of the drscheme
window. Use the `show' menu to make
it visible.
- drscheme's new version window is now a
modified version of the language dialog
- the language settings are now frame-specific.
If you change the language in one
window, it won't affect execute in another window;
the most recently set language is what is
used for newly created windows.
- added "Open recent" menu item
- added a preference called "Reuse existing DrScheme frame"
that, when opening new files, causes DrScheme to replace
the existing frame.
- bug reports now go to the new bugs.plt-scheme.org
server (and to bugs@plt-scheme.org)
- error messages output improved
- added a mechanism for collapsing and expanding
sexpressions to drscheme. right-click to collapse the
enclosing sexpression to something like (...) and right
click on that to expand it back to the previous text.
- added an emacs-like c-x c-b feature to drscheme.
Type <menukey>-j to popup a window of the open frames
and choose one without using the mouse by typing.
- added <menukey>-minus and <menukey>-plus as shortcuts to
move to the next and previous menus
- The enter key now submits the interaction in the REPL,
even if the cursor isn't at the end of a sexpression.
- It is possible to switch the interface language of
DrSheme's GUI. The mechanism is in place, in any
case. The translations aren't yet, so you probably
don't want to try to switch. Also, you will see
funny warnings when starting up DrScheme to that
effect. Ignore them unless you are working on
the translation.
- drscheme constructor and quasiquote printers
now shows syntax's structure, and module-path-index
structure.
- DrScheme's quasiquote printer now works a little bit
better for expressions like '('a 'a).
It used to show `((,'quote a) (,'quote a)), but
now it shows `('a 'a).
- The portion of space between the definitions and
interactions window is now interactively changable.
- the bug report form now connects to bugs.drscheme.org
instead of cs.rice.edu directly, so earthlink users
should be able to submit PRs via Help Desk.
- adding splitting of the definitions and interactions
canvases, to be able to see two different parts of the
buffer simultaneously
- when saving or executing,
if the file has been overwritten in the filesystem,
drscheme prompts you to make sure you want to overwrite
or execute the file.
- added Teach Youself Scheme in Fixnum Days to
DrScheme's documentation.
- implicit sequencing has been eliminated from the advanced language
level in order to give better error messages. Use an explicit `begin'
for sequencing. (this change was made between 102 and
103, but we forgot to put it into the release notes)
- teachpacks finally support macro definitions.
- there is now a little eof icon next to the input box when
input is expected. you can click it send an eof. It closes
the input port until execute is next clicked.
- many minor improvements to the Help Desk html renderer.
- the filename button (in the top right of the drs frame)
now pops up a menu of the directories
that contain the saved file's directories. Choose one
to open a `get-file' dialog in that directory.
- (without checking the syntax) the right click context-sensitive menu
has an entry to search based either on the selection, or on the text
that was clicked on.
- DrScheme now prints exact real numbers as graphical fractions
(instead of the (+ 1 1/2) notation). These are also valid as
input, but you have to copy and paste to get them into your
program.
- Added an "insert fraction" menu item to the edit menu for
inserting fractions directly into the program.
FRAMEWORK and TOOLS
-------------------
- added HO function contracts.
- it is now possible to add languages to DrScheme,
as tools.
- changed many filenames to match the new -unit.ss, and -sig.ss
convention instead of the old r.ss and s.ss convention.
- changed guiutils.ss to gui-utils.ss in framework collection.
- tools are now specified in info.ss files in top-level
collections, rather than in a subcollection of the
drscheme collection (see the tools manual for details).
- added gui-utils:alphabetic-list-box% to framework
- added `expand-program' to tools interface for
tools that process program text.
- exit:exit and exit:can-exit? now accept optional
booleans that specify if the user should be asked
about quitting.
- the splash screen now only allows a single
splash screen (per namespace).
Version 103:
General
-------
- typing characters in to the definitions and interactions window
should be more responsive now (it was noticably slow on slower
machines)
- files added to projects are now stored as relative files,
by default. (use project menu to change the default)
- project files are saved using a platform-independant syntax for
paths now.
- Using file|open and choosing a project file (based on contents) will open
the project file. (this only will work with project files saved in this
version -- old project files won't be recognized until they are
saved once.)
- Opening or a .plt file will install the .plt file, after querying the user.
- added break button to project windows
(does the same thing as the break menu item always did)
- added save button and little "full name" thingy to project
frames
- DrScheme permits the use of "." (period) as an identifier in the
student language levels.
- implicit sequencing has been eliminated from the advanced language
level in order to give better error messages. Use an explicit `begin'
for sequencing.
Version 102:
General
-------
- the help desk language level specific documentation has been
integrated into drscheme.
- errortrace-like facility is now available in drscheme debug
language levels. Click on the bug next to an error message to see
a trace of the continuation of the error.
- drscheme-jr now supports teachpacks
(those that don't use GUIs, like htdp/dir.ss)
- launchers can now be run from any directory.
They do not need to be saved in a particular place (this has been
true for some time, but it is officially true now.).
- the debug full scheme languages now allow loading of files
that contain graphics.
- #! is treated like a comment when executing the defintions window,
if it is the first two characters in the definitions window.
- rarely used save menu items relegated to sub-menu.
- added a "keymap" menu to the edit menu (shortcut: k)
that opens a window where you can see all of the key
bindings' names and short cuts, and you can choose one
to invoke.
- added a "Kill" menu item that kills all computation and reclaims
all resources from the program that drscheme is executing.
This is useful for multi-threaded apps that get out of hand.
- meta-control-d, meta-control-u, meta-shift-control-d, meta-shift-control-u
keybindings all restored.
- drscheme now has a little button on the bar that lets you hop
around between definitions in the program. It is approximate in
that it doesn't really know every detail about the lexical
structure of scheme, but it should still be quite useful.
- interactions window now shows the names of the teachpacks that
were installed at last execute.
- drscheme now allows multiple teachpacks.
- teachpack names are not in the area with the execute button, instead
they are now shown in the language menu.
- repl errors that are in some loaded file have little clickable
icons that open the file and show the error's source location in
the file.
- Only the platform-specific dialogs are used in drscheme now, on
all platforms. The preference has been removed from the dialog.
- project files are `load'able. That is, if you have the right
language settings, you can do
mzscheme -qmvr myproj.proj
and have the same effect as clicking execute on the project
window. For mred, you will need to do something like this:
mred -qmvr myproj.proj -e "(yield (make-semaphore 0))"
so that mred doesn't quit automatically.
- Help Desk now has a "feeling lucky" option ala google (menu
shortcut: l). It goes directly to the first item that would have
been found in a regular search.
- Clicking on an error message link in drscheme now uses the "feeling
lucky" style search in help desk.
- clicking on the name in the topleft of the drscheme frame opens a
little window with the full path.
- check syntax now shows its syntax errors in a separate window.
- the teaching languages now come with:
make-posn, posn-x, posn-y, and posn?
by default (no library required).
- teaching levels print exact numbers whose denominators are evenly
disivible by 2 and 5 as decimals.
- teaching levels treat input decimals as exact numbers.
- in the main help-desk window, space does pgdn and backspace does
pgup, ala netscape. Also, typing return or enter while the cursor
is on a link follows the link.
- added class/d macro. It's syntax is like that for a unit, but it
defines a class. Roughly:
(class/d
super-expresion
init-args
((public var ...)
(override var ...)
(inherit var ...)
(rename (var var) ...))
definitions-and-expressions ...)
This a new part of macro.ss in the mzlib library
Tools and Framework
-------------------
- drscheme:rep:process-text/zodiac and
drscheme:rep:process-text/no-zodiac
are now called drscheme:load-handler:process-text/zodiac and
drscheme:load-handler:process-text/no-zodiac.
- added a slew of -on-demand methods to frame:standard-menus-mixin
- the framework now imports a definition of the preferences
file location. Use this to have a separate preferences file
for each different application.
- do not use 'drscheme:settings anymore to get the current
language settings from drscheme. Now, use
drscheme:language:settings-preferences-symbol
(which is bound to the right symbol) instead.
- setup plt's ``clean'' info.ss flag does not recur
into subdirectories anymore.
- the graphics library (sometimes known as sixlib) no longer
accepts any scaling arguments.
- the framework's preferences system now requires you to
set the marshall/unmarshalling functions (if any) before
setting the default preference.
- drscheme now supports site-specific default preferences.
To use, create a file prefs.ss in the defaults collection
that is a copy of the preferences file that you want to
be the defaults. Then, if the user-specific preferences file
doesn't exist (or the preferences in it are from an old version),
the contents of the prefs.ss file in the defaults collection is
used as the preferences.
- drscheme now wraps uses with-handlers so that if a tool
signals an error when it is loaded or invoked, it just
puts a window with the error message and continues, instead
of keeping drscheme from starting up.
- the .plt installer no longer automatically deletes compiled
files when installing a .plt file.
- setup-plt now uses the 'clean flag in info.ss to determine
the files to be deleted when --clean-ing a collection. It
defaults to the files in the "compiled" sub-collection of a
collection.
- setup-plt no longer automatically runs --clean when installing
a .plt file.
- framework:
- added canonicalize-keybinding-string
- added aug-keymap%, aug-keymap<%>
- editor:basic now sets it's keymap to an
aug-keymap<%> during initialization.
- the framework's info frame mixins no longer require frame:editor<%>
as an input. Also, they are moved lower in the hierarchy of the
instantiated mixin classes in the framework. This affects all of the
frame:XX% classes.
tools:
- ensure-interactions-shown is now ensure-rep-shown
- do-many-buffer-evals is now do-many-text-evals
- clever-file-format now symetrically changes the file's format to
'standard. It used to rever the file format to 'text when there
were no more images in it. Now, it also changes back to non-'text
when images (and other non-string-snips) are added back.
- the framework's gui-utils:get-snips/chars-from-buffer is now
gui-utils:get-snips/chars-from-text
- zodiac now supports graphical expressions. If a snip implements
zodiac's expand<%> interface, zodiac calls a method of the snip to
expand it.
- the drscheme:get/extend:extend-* functions no longer haver %s at
the end of their names.
PRS
---
1507: thread error freezes repl
1506: Help Desk exits gracelessly when interrupted
1503: Launcher prints debug info
1502: (define's hard to find
1499: text mode display auto-wraps
1490: alt-tduring execution has different binding
1484: cannot paste in search box on macos
1480: default launcher name is "Save A Launcher"
1478: parity reversed in Dr Jr command line flag
1461: Kill menu problems
1460: Help Desk has empty preferences
1459: search menu items work on empty search text
1456: teachpacks don't add
1455: project windows never leave `Windows' menu
1437:
1428: setup -c deletes files for all platforms
1424: long (list ...) displays don't display correctly
1405: memory usage box should be read only
1398: Downloading doc files requires restart
1377: replacing by empty string loops
1341:
1334:
1330: killing repl, then check-syntax hangs
1306:
1297:
1235:
1171:
1144: match docs not setup right in Help Desk
737: mred:preferences library too global
599: mac: can't double click to open files while mred starts up
406: bad error message for sixlib op
1274, 1280, 1264, 1260, 1239, 1225, 1220, 1268, 1209, 1208,
1196, 1180, 1096, 1088, 1043, 771, 752, 846
1358, 1344, 1341, 1329, 1322, 1242 (docs not yet built), 1235
Version 101:
General
-------
- The teaching libraries are now called teachpacks. See the teachpack
release notes for more information.
- DrScheme's languages have changed (again). The langauges are now:
- Beginning Student
- Intermediate Student
- Advanced Student
- Full Scheme, which contains:
- Graphical Full Scheme (with and without debugging), and
- Textual Full Scheme (with and without debugging)
- Help Desk now supports bug report submissions. Please use it in
favor of the web based form. To submit a bug, follow the "Sumbit a
Bug" link near the bottom of Help Desk's front page
- On European keyboards, the backslash character
may not work properly in DrScheme. If you
experience this problem, comment out this line:
(map-meta "\\" "remove-space")
in PLTHOME/collects/framework/keymap.ss.
- For tools, invoke-library is now called invoke-teachpack.
- Renamed two files in the graphics collection:
graphic.ss is now graphics.ss
graphics.ss is now graphicss.ss
- DrScheme's print menu now inserts the time, date and filename in the
header of the file to be printed.
- comment/uncomment is improved. Now, it blindly adds a semicolon to the
front of each line (and doesn't add extra semicolons on following lines)
and aways removes one semicolon (if present) from the front of each line.
- Parenthesis highlighting now turns unmatched parens red
in addition to turning matched parenthesis regions grey.
Also (now that the caret flashes) if the caret is between two
parens, both before and after parens will be highlighted,
not just the ones before.
Thus, every time the cursor is next to an uncommented
paren, the programmer sees some feedback about the paren.
Version 100:
General
-------
- DrScheme's languages have changed. The new languages are:
- Beginner
- Intermediate
- Advanced
- MzScheme
- MrEd
The first three languages are essentially the same as in version
53, except that graphics primitives have been removed. (Instead,
domain-specific graphics commands can be loaded as libraries.) The
turtles remain in the advanced language.
The MzScheme and MrEd languages match exactly the languages
provided by the MzScheme and MrEd executables.
- A simple algebraic stepper, dubbed The Foot, is now available. The
Foot permits users to construct a source-level evaluation trace for
programs written in the Beginner language. It will be expanded in
future releases.
- DrScheme's Help Desk provides online help for DrScheme, its
languages, and its libraries.
- Graphics functions were removed from the teaching languages
(Beginner, Intermediate, and Advanced), except Turtles in
Advanced. To use graphics functions, you must select a library (and
the teaching libraries are not yet updated).
- The old viewport-based graphics library can be loaded into the MrEd
Debug language via (require-library "graphic.ss" "graphics").
- I/O within DrScheme is substantially improved.
- The library and tool interfaces for extended DrScheme have
changed.
Version 53:
General
-------
- view menu items now have accelerators
- (<= exp) isn't allowed in beginner. (same for <, >, and >=)
- print primitive is now setup correctly to print based on the language level
- paren-matching in semi-colon comments is disabled
- info panel "running" message is now aligned correctly
- The check synatax and analyze buttons are now disabled during evaluation
- library directory now starts in "MZLIB_COLLECTS_DIR/../../lib"
which is our best approximation to "PLTHOME/lib"
- elevator library can now select more than one floor at a time
Version 52:
General
-------
- The words "running" or "not running" at the bottom of the
DrScheme frame indicate whether or not work is happening in the
user's program.
- a "Windows" menu has been added which keeps track of the currently
open drscheme windows.
- the source locations for "load"ed files now match the numbers
in the bottom of the drscheme window.
- the thread that evaluations (including execution) take place on is
the same as the eventspace's main thread, unless the evaluation
thread is killed. In that case, the eventspace's main thread is
re-generated, but the execution thread does not.
- The REPL implementation has been cleaned up.
- the turtles window does not survive across executions anymore
- the Quasi-R4RS language level has been renamed to R4RS+
DrScheme Tools/Libraries
------------------------
- new methods on rep:edit%: report-exception-error accepts an exception and
prints the error message in the console.
- send-scheme is outdated. Use run-in-evaluation-thread instead
- the drscheme:tool^ signature has changed. A new subunit, "basis" has
been aded and the process-finish struct is now in that subunit. So,
drscheme:language:process-finish? becomes
drscheme:basis:process-finish?, etc.
The process-finish structure no longer has a boolean indicating sucess.
Instead, an exception is raised.
- the settings for the language have been re-aranged
- there are two new parameters, exported from the basis
subunit of drscheme:export^, current-setting and current-vocabulary
- current-vocabulary contains the vocabulary that zodiac uses to
perform macro expansion
- current-setting is bound to a setting struct, which encapsulates
all of the information about the language level
- the process-*/zodiac and process-*/no-zodiac proceudres
are no longer methods and their arguments have changed
Version 51:
General
-------
- fixed error message for "eq?" and "cons" at beginner level.
- check syntax does not work with an unitialized repl when:
the source contains define-macro. (won't be fixed in the release)
- eval no longer loops forever in mred vocabulary
- searching keybindings have changed. There are four distinct actions:
action1: move keyboard focus to the searching window, opening it if necessary,
or if already there search forward
action2: move keyboard focus to the searching window, opening it if necessary,
or if already there search backward.
action3: search again, in the same direction
action4: move the focus between the main window, searching window and replacment window
action5: hide the searching window
The actions are mapped to different keys, based on the platform.
On unix:
action1 => control-s, meta-%
action2 => control-r
action3 => f3
action4 => control-i
action5 => control-g
On the macintosh:
action1 => command-f
action2 => command-r
action3 => command-g
action4 => command-o
action5 => command-.
On windows:
action1 => control-f
action2 => control-r
action3 => f3, control-g
action4 => control-i
action5 => escape
- turned off the file name printouts on splash screen
evaluate:
(wx:write-resource "mred" "splashMessages" 1 (wx:find-path 'setup-file))
to turn them back on.
- fixed a bug that caused error messages to be displayed in message
boxes more often than neccessary. (as opposed to printing in the
repl)
- parenthesis matching is improved
- The empty list is now called "empty" instead of "null" with the
constructor style printer.
- The analyze button puts up a dialog saying "please wait, loading",
now.
- the fonts dialog now shows previews of the selected fonts. You
still need to restart to see the changes, unfortunately.
DrScheme Tools/Libraries
------------------------
- tools must now import wx names explicitly, as a new first import.
- the parameters interface has changed. Instead getting and setting
the class, the tool programmer must register a function that
accepts a class and returns a class. See the manual for more
details.
- process/zodiac-finish has been renamed to process-finish
