The synchronization result of a log receiver is now a vector of four
values, instead of three, where the last one reports the name.
Also, an optional argument to `make-logger' provides a notification
callback for each event sent to the logger.
These changes enable more control over loggers and events. Suppose
that you have processes A and B, and you want all log events of A
to be visible to B, but not vice-versa. Furthermore, you want the
log events to appear at B in the right order: if A logs an event
before B, then A's event should arrive at a log receiver's before
B's. Now that a log receiver gets the name associated with the
original event, and now that the name can be re-sent in a
`log-receiver', it's possible to give A and B separate loggers and
send all of the events from A's logger to B's logger. Furthermore,
you can use the notification callback so that when an event is logged
in B, you can make sure that all available events from from A's
logger have been transferred to B's logger.
One drawback to the current situation (after this commit) is that all
log messages are sent into the user's logger, even messages that come
about as part of DrRacket's implementation. It isn't clear how to fix
this without enumerating all of the possible messages to share and
explicitly forwarding them (both of which are suboptimal things).
On the plus side, the GUI now uses the "debug@GC" notation in a text
field, and when the logger pane is not open, there is no extra work
going on. Plus other, minor GUI improvements.
This was there, I believe, to avoid latency when clicking
on the [docs] links in the language dialog. But now that
we're using a database anyways, loading the xrefs is fast.
- use the same font/size as the definitions/interactions window
- add a checkbox to control scrolling behavior and,
- when scrolling, scroll to the begining of the line, not the end
Put the details consistently with event datatypes, instead
of trying to put them all in `sync', which better reflects
the extensibility of the set of synchronizable events.
it only looks left and right at hyphens and only
up and down at pipes, etc. This better handles the
case where you have something like this:
+--------------+
| (<= a-x b-y) |
+--------------+
Before this commit, it would have adjusted the hypens
inside the identifiers
adjust the way it changes characters so it
doesn't change them when they are already the right
thing (this means set-modified is not always called
and also improves performance in the case that little
changes in a big diagram)
Before this commit, things like this:
(define c% (class object% (super-new)))
(object-name c%)
would produce
'class:c%
but now classes and interfaces will be more like procedures and, in
the example above, just produce:
'c%
The underlying goal is to make error messages generated from contracts
like
(is-a?/c frame%)
have "(is-a?/c frame%)" in the message, instead of "(is-a?/c
class:frame%)"
This reverts commit c2468f1f9a.
The libjpeg documentation claims that it has no static state,
so atomic mode shouldn't be necessary. Also, the stress test is
still failing on some platforms, so there must be a different
problem than I thought.
Revert "do a little bit better job compressing the bytes"
This reverts commit 099a35881e.
Revert "adjust file to use the literal bytes for the ufo image"
This reverts commit fdd9344b27.
* Consolidated Gauss and Gauss-Jordan elimination
* Fixed Gaussian elimination to return all indexes for pivotless columns,
not just those < m
* Consolidated `matrix-row-echelon' and `matrix-reduced-row-echelon'
* Specialized row reduction for determinants; removed option to not do
partial pivoting (it's never necessary otherwise)
* Added `matrix-invertible?'
* Removed `matrix-solve-many'; now `matrix-solve' solves for multiple
columns
* Gave `matrix-inverse' and `matrix-solve' optional failure thunk arguments
* Made some functions that return multiple columns return arrays instead
(i.e. `matrix-column-space')
* Added more tests
The version number is included as the query part of the constructed
URL, so it is easily ignored by a server. The intent is that the
PLT PNRs will eventually support version-specific results.
* Split "matrix-constructors.rkt" into three parts:
* "matrix-constructors.rkt"
* "matrix-conversion.rkt"
* "matrix-syntax.rkt"
* Made `matrix-map' automatically inline (it's dirt simple)
* Renamed a few things, changed some type signatures
* Fixed error in `matrix-dot' caught by testing (it was broadcasting)
* Rewrote matrix comprehensions in terms of array comprehensions
* Removed `in-column' and `in-row' (can use `in-array', `matrix-col' and
`matrix-row')
* Tons of new rackunit tests: only "matrix-2d.rkt" and
"matrix-operations.rkt" are left (though the latter is large)
* Finally added `array-axis-expand' as a dual for `array-axis-reduce'
in order to implement `vandermonde-matrix' elegantly
* Better, shorter matrix multiply; reworked all matrix arithmetic
* Split "matrix-operations.rkt" into at least 5 parts:
* "matrix-operations.rkt"
* "matrix-basic.rkt"
* "matrix-comprehension.rkt"
* "matrix-sequences.rkt"
* "matrix-column.rkt"
Added "matrix-constructors.rkt"
Added `matrix', `row-matrix', and `col-matrix' macros
A lot of other little changes
Currently, `in-row' and `in-column' are broken. I intend to implement
them in a way that makes them work in untyped and Typed Racket.
JPEG reading and writing involve callbacks that need to be
atomic, since the stack-swapping games that a Racket thread
switch plays may not be ok with the JPEG library (as exposed
by the stress test). So, the JPEG reading and writing code
must read/write a string port, instead of directly from/to
the source/destination port, since a string port can be
used in atomic mode.
