Please move this discussion to plt-edu-discuss. THANKS.
2010/6/16 Stephen Bloch sbl...@adelphi.edu:
! Program v Design
is tt-equivalent to
Program - Design
and to
no program without design
But seriously, none of them is as catchy as TeachDesign, which could of
course be misread as
Python apparently has a feature where you essentially put the
contract/purpose in the text of a function, and when you type the
function's name, it prints out that documentation. (It sounds like
the docstrings of Common Lisp.)
This came up on day 1, minute 15 of the TSRJ workshop.
Do ask the person who asked whether Python has coverage now. -- Matthias
Aspirin vs vitamins.
Shriram
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
This is a pointless exchange that misses the reason for its initiation.
Attendee: Here's a nice feature that I find awfully useful. How do I
get it in DrRacket?
Us: Oh yeah? And can your beloved language do X?
Shriram
On Mon, Jul 19, 2010 at 4:58 PM, Matthias Felleisen
matth...@ccs.neu.edu
I just spoke with a room of high-school students studying Universe
programming in a summer course at Brown.
One major complaint was that they couldn't do multi-key-presses. For
instance, they want to use WASD navigation combined with a right-side
key for firing, and want to be able to fire and
As far as I know, at the lowest level there is no multiple key press
event even in the OS.
Yes, that's why I had scare-quotes in my message.
If they want to do that, they should change their world to record the
current key press state:
I told them that. But the problem is that inversion of
Empty file, Determine language from source, click Run, and the error
message says
Module Language: There must be a valid module in the
definitions window. Try starting your program with
#lang scheme
and clicking ‘Run’.
Surely that should say #lang racket instead?
Yeah. I can make my window narrower, but the wider window helps for
code. For now I'm just going to use two separate windows.
Incidentally, I was surprised that the indenter got confused by
Scribble. Should I be? Or perhaps the indenter doesn't claim to
handle Scribble?
I've been vexed for a while about parenthetical syntax: I love it,
appreciate what it offers, but also recognize that no amount of
teaching or arguing alters how people perceive it. With the switch to
Racket, and our continuing interest in user interface issues, I
believe it is wise to consider
That does sound like the right level, in that this isn't a new
language -- by design.
I started out by trying to create a new syntax; then I realized I
didn't need to; then that I didn't *want* to. By then I was locked
into this file structure and didn't come up for air. I probably
didn't peel
That did the trick -- thanks!
On Wed, Jul 28, 2010 at 2:18 PM, Jay McCarthy jay.mccar...@gmail.com wrote:
Look up the 'paren-shape stx property.
Jay
On Wed, Jul 28, 2010 at 12:17 PM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
That does sound like the right level, in that this isn't
On Wed, Jul 28, 2010 at 2:31 PM, Jay McCarthy jay.mccar...@gmail.com wrote:
At first I thought, how is this different than Honu?
I don't know anything about Honu. As far as I can tell it's the great
undead language of the Racket world. If Honu's already solved the
problem and is being actively
Is the audience HtDP students/teachers, professional programmers,
hobbyists, someone else, or all of the above?
People new to Racket, whether students or developers.
And, if the audience includes HtDP students/teachers, would all the
HtDP examples be revised to use P4P?
It's way too early
People already struggle with nesting. Excessive parens make
composition look much harder than it is. Ergo, my desire to remove
all unnecessary parentheses.
While agreeing on goals (integration w/ reader, etc.), I'm ultimately
less interested in H-expressions than in the surface language. That
Hi Ian,
- The whole distinction between operators and functions is a lie!
Except it's not. I've run into educators who taught Scheme who
thought this way, and the accounts of Scheme they gave were nonsense.
I'm not saying this (nonsensical semantics) is a necessary consequence
of thinking
That's only true if {} count as parens too. ¡ My suggestion was that
they ONLY count as a begin statement.
So what do I do in the case of expressions-in-function-position?
Currently that is the one source of ambiguity in the language, so it
is essential that I deal with that. Using {...} in
That's why internal defvar: exists. Most of the time, this is what I
expect people will want and use, just like local variable definitions
in other languages (except done right, w/out bizarro scope-lifting
crud).
Unusually for you, your remark seems vacuous. (P4P, and I quote::
This is purely
I disagree. I think parens are synecdoche.
Shriram
On Thu, Jul 29, 2010 at 1:28 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
FWIW, I think you're probably right that parens are actually code
for I don't want to think so hard so while an alternative syntax may
take away one excuse,
, it'd be great to get some feedback from
others who try it out.
On Thu, Jul 29, 2010 at 2:12 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
Okay, I just looked that up and I'm still not sure what you mean. :)
Robby
On Thu, Jul 29, 2010 at 1:09 PM, Shriram Krishnamurthi s...@cs.brown.edu
Seems to me that this point directly contradicts one of Shriram's
design goals, namely showing that + is no more special than append or
one of your own functions.
Precisely. And a point that Emu makes very well in Bootstrap.
Also, when is Honu getting indentation?
It's clear that putting
deffun: d/dx(f) =
defvar: delta = 0.001
fun: (x) in
((f((x + delta)) - f(x)) / delta)
Just to be pedantic, I've changed the in to in:, because I want to
have a consistent rule for all key*words*.
Which can be understood easier than the prefix version but avoids all
the negatives
Several things to reply to, but before I get to them, it's critical
that I fix this misconception:
2. I doubt that we can figure out the usefulness of this new syntax
on this mailing list.
I am not trying to. I only posted it here because I figured having
lots of eyes look at it would
I'm not talking about behavior, I'm talking about the intended
semantics of observations in the language.
Shriram
On Mon, Aug 2, 2010 at 9:47 AM, Sam Tobin-Hochstadt sa...@ccs.neu.edu wrote:
On Mon, Aug 2, 2010 at 9:40 AM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
If I export map (w/out
:
On Mon, Aug 2, 2010 at 11:14 AM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
Okay, so here's another scenario. This time, TR will NOT just pass
the value through, as it did map.
a.rkt
#lang racket
(define foo 4
Understood, too. So, do you want WeScheme/Racket compatibility or
WeScheme/DrRacket compatibility?
In some sense, neither. We'd like to understand what is actually
happening, so we can make an intelligent decision accordingly.
Shriram
_
For
Go to
http://sites.google.com/site/viktorwinschel/
then click on Languages.
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
I almost love the bumper sticker. Would you consider:
- removing the http: garbage and replace it with just
www.racket-lang.org? The ://.../ is too much visual clutter (though
thanks for putting the slash at the end -- I hate it when people drop
that). I know without the www. will work, but
Yes, Matthias and I discussed this in the context of Typed Racket vs
Typed JavaScript some months ago. TJS doesn't have to worry about
this because of the single-threaded nature of the language. It seems
to me this is a non-trivial problem for TR.
Shriram
Neither would the PLT Web server. I'm pretty certain Jay's own edits
to it were not preceded by tests.
Jay's changes to the PLAI language most certainly were not, because
the current PLAI that is bundled with DrRacket is broken.
(Sorry, Jay, but it's your prose.)
Shriram
On Thu, Aug 19, 2010
But most people wouldn't dream of touching the core Racket engine (for
much the same reason). Are these guidelines for kernel hackers?
Shriram
On Thu, Aug 19, 2010 at 9:53 AM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
There's code and there's code. I don't think slideshow is at the level
.
I call this judgment inaccurate.
On Aug 19, 2010, at 9:56 AM, Shriram Krishnamurthi wrote:
Neither would the PLT Web server. I'm pretty certain Jay's own edits
to it were not preceded by tests.
Jay's changes to the PLAI language most certainly were not, because
the current PLAI
Why does make-hash require one argument, rather than just taking zero
like make-hash in Racket does? ASL is anyway a language with state,
so it's perfectly meaningful to create an empty hash table and update
it. Furthermore, many algorithms begin with an empty hash table.
This argument strikes
Actually, I grepped through the source in the hope that that's
precisely what I would find. It's when I didn't that I wrote the
list.
Shriram
On Wed, Aug 25, 2010 at 10:11 AM, Jay McCarthy jay.mccar...@gmail.com wrote:
On Tue, Aug 24, 2010 at 10:18 PM, Eli Barzilay e...@barzilay.org wrote:
On
Catching up ...
What documentation are you looking at?
http://docs.racket-lang.org/htdp-langs/advanced-prim-ops.html#(part._(lib._htdp-advanced..ss._lang)._.Hash_.Tables)
If I type hash in the Help Desk, I get
hash provided from racket/base, racket
but not from ASL, in contrast to, say,
I like this. The Stepper becomes available as an aid to help you
answer questions about how things came to be. It is indeed often the
case that I lose the plot when stepping forward and hence go to the
end and work backward; this could put you there right away.
Yes, left-to-right scrolling
Understood, and agreed. Thanks!
Anyone else have comments/suggestions? I really like Robby's UI
suggestion and am treating it as the lead contender.
On Thu, Aug 26, 2010 at 10:57 AM, Robby Findler
ro...@eecs.northwestern.edu wrote:
On Thu, Aug 26, 2010 at 9:35 AM, Shriram Krishnamurthi s
On Thu, Aug 26, 2010 at 8:27 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
It seems to me it would be nice to contemplate a design that
integrates test suites and the stepper (also in light of Mike's
signatures).
Robby
On Thu, Aug 26, 2010 at 7:23 PM, Shriram Krishnamurthi s
I can think of many different ways to make the stepper-definition
correspondence manifest. As John said, I once suggested that the code
should be reduced in-place, in the definition window. Shriram doesn't
like that idea (but he has never bothered to say why.)
That's right, I didn't.
The language chooser details panel looks like the attachment. It
looks like there are five Output Styles and Fraction Style combined,
rather than two distinct blocks of 3 and 2. A little spacing might
make it a bit easier to read.
attachment:
What is the relationship between define-struct and struct in Racket
5.0.1? By define-struct I mean the construct provided in ASL. In my
custom language I have
(define-struct tv (tag value))
(provide (struct-out tv))
and I get the error
struct-out: no import for structure-type identifier in:
On Sat, Aug 28, 2010 at 3:38 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
This works fine in #lang racket, eg:
#lang racket
(define-struct s (a b))
(provide (struct-out s))
I think that ASL's define-struct is not racket's tho, so you'd
probably have to read the docs carefully to
.)
Jay
On Thu, Aug 26, 2010 at 11:55 AM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
What is the #lang magic that makes
(get-image-from-web http://racket-lang.org/logo.png;)
(instantiate (class ...) ...)
show the image rather than just its constructor?
Shriram
... which was my original question. But thanks.
On Sat, Aug 28, 2010 at 9:36 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
I guess you don't have the print handler set up right.
On Sat, Aug 28, 2010 at 8:23 PM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
The value I was returning
http://docs.racket-lang.org/drracket/extending-drracket.html?q=teachpack#(part._teachpacks)
-
As an example, the following teachpack provides a lazy cons
implementation. To test it, be sure to save it in a file named
lazycons.ss.
...
Then, in this program:
...
the list all-nums is bound
Is there a reason =? isn't bound? I see (in Guillaume's logs)
students actually getting errors because they tried to use it.
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
to, the reason.
-Everett
On 09/06/2010 11:31 AM, Shriram Krishnamurthi wrote:
Is there a reason =? isn't bound? I see (in Guillaume's logs)
students actually getting errors because they tried to use it.
_
For list-related administrative tasks
Is there any way for shared to check for whether a name was originally
assigned to an LHS and, if so, to re-use it? If I define
(define cities (shared ([PVD (make-city ... (list BOS ORD))] [BOS ...]
[ORD ...]) PVD))
and it prints as
(shared ((-0- (make-city Providence (list -3- -7-)))
You know, it's not inconceivable such a thing could happen if you had
a PURELY syntactic *interpreter*.
I remember when I got to Brown, they were using one of those weirdo
Scheme interpreters, and had come to conclusions about the semantics
of Scheme on the basis of its behavior. Things like you
Yep, that's exactly what was happening with the thing they ran at
Brown. It was that system by that guy in Nice -- Erik Galliseo or
something like that.
Shriram
On Tue, Nov 16, 2010 at 5:21 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
On Tue, Nov 16, 2010 at 4:19 PM, Eli Barzilay
Good point. I never thought of it this way, but this is another
argument in favor of dynamic scope. [tongue in cheek]
Shriram
On Tue, Nov 16, 2010 at 5:25 PM, Sam Tobin-Hochstadt sa...@ccs.neu.edu wrote:
On Tue, Nov 16, 2010 at 5:22 PM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
You
If you knew his background, you would not expect him to at all be a
native speaker of ().
(Further OT amusement: He, Stephanie, and Tim Sheard had a paper at
last week's FOSER workshop entitled Language-Based Verification Will
Change the World. Apparently, dependent types are both necessary and
Someone should write to Danvy and ask him what the heck HE was doing
sleeping on the job. How could a paper on a topic like this not get a
proper Schemer as a reviewer and, if so, why didn't they, uh, read the
paper?
On Wed, Nov 17, 2010 at 12:41 AM, John Clements
cleme...@brinckerhoff.org
Effectively impossible. It's all in the domain.
On Sat, Dec 11, 2010 at 1:47 PM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
How difficult is it to implement one as a Planet lib that avoids tracking?
On Dec 11, 2010, at 1:41 PM, Neil Van Dyke wrote:
One issue to consider with
See
http://bugs.racket-lang.org/query/?cmd=viewpr=11049
Shriram
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
, 2011, at 8:28 PM, Shriram Krishnamurthi wrote:
http://byob.berkeley.edu/Church.pdf
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
_
For list-related
Will the syntax be infix or prefix? Will the semantics be fixednum or bignum?
On Wed, Mar 23, 2011 at 7:00 AM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
can you turn these captcha expressions into small arithmetic expressions
that people know they need to compute and the spammers don't
Which also raises an idea: now that TR is getting going, maybe we
should have another step on this scripts-to-programs slope that is
_lower_ than Racket. A language where we really only have one single
datatype and everything just works on it, hashes being the obvious
one (altho we probably
Justin is right other than the Java part. Eli is right with the
amendment of -1 for the suggestion that Java has good parts worth
borrowing. (-:
On Wed, May 4, 2011 at 7:51 PM, Eli Barzilay e...@barzilay.org wrote:
20 minutes ago, Justin Zamora wrote:
On Sun, May 1, 2011 at 3:20 AM, D Herring
In DrRacket 5.1 on Windows 7, hitting Alt-Space reproducibly produces
this output:
system-menu in frame%: unimplemented; args were '()
=== context ===
C:\Program Files
(x86)\Racket\5.1\collects\racket\private\more-scheme.rkt:265:2:
call-with-exception-handler
C:\Program Files
My understanding is that Eli has all these things for his PL course,
right? So it's just a matter of making them more widely accessible?
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
I think even one sentence in the docs about the implications of these
statements there would be a great idea. To someone who doesn't
already know Scheme, the distinction between one value and the
alternative is entirely unclear because they don't know what
alternatives there are to one
Shriram Krishnamurthi s...@cs.brown.edu:
Guillaume, Kathi and I have created a set of guidelines for writing
error messages for *SL. For consistency, these guidelines need to be
used also by authors of libraries including Teachpacks, etc. These
guidelines are currently being applied
Where there is subtyping, same and different are not so clear.
set-foo-bar!, foo-bar, and foo? are all different things at the
level of mutator, selector, and predicate, but they are the same
thing one level of abstraction up, where they are all functions or
operators.
So we are not advocating
* Start the message with the name of the construct whose constraint is
being violated, followed by a colon.
Should give a quick example to clarify that `error' does that when
given a symbol. I can see people following this blindly and
getting
- (error 'foo foo:
Oh, I'm all in favor of skipping identifier. But using the word
variable both for global variables (i.e. constants) and for
function parameters strikes me as asking for confusion.
Okay. We have no evidence one way or the other. It could be
something we try to investigate. Given our
While having a copy of Shrunk and Whiteout thrown at us, no less.
On Thu, Jun 9, 2011 at 6:43 AM, Robby Findler
ro...@eecs.northwestern.edu wrote:
Man, I recall a slightly different sentiment when you edit papers we
co-author. :)
Robby
On Wed, Jun 8, 2011 at 8:50 PM, Matthias Felleisen
Danny, the real reason to not mess with the name in the github repo
name is that you WANT people who are looking for the original language
to find your version of it.
Shriram
On Fri, Jun 10, 2011 at 7:06 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
On Fri, Jun 10, 2011 at 5:52 PM, Danny
Also, would any Boston people be willing to host out-of-town students?
On Sun, Jun 26, 2011 at 12:36 PM, John Clements
cleme...@brinckerhoff.org wrote:
Are there any group-ish plans for RacketCon lodging? A campsite, say... :)
John
_
For
Whoa, whoa there. They're there for a reason. I can't remember why,
but I am pretty certain I have actually used such a function. Please
don't go around chopping and changing the language a few days before
the deadline.
On Mon, Jul 11, 2011 at 7:21 PM, Guillaume Marceau gmarc...@gmail.com
Precisely.
On Tue, Jul 12, 2011 at 6:10 AM, Stephen Bloch sbl...@adelphi.edu wrote:
On Jul 11, 2011, at 6:32 PM, Matthias Felleisen wrote:
I'd much prefer eliminating such function calls.
What harm do they do? You can't call any library function with the wrong
number of arguments, and you
Correct, no colors.
On Mon, Aug 1, 2011 at 11:57 AM, Sam Tobin-Hochstadt sa...@ccs.neu.edu wrote:
On Mon, Aug 1, 2011 at 11:48 AM, Eli Barzilay e...@barzilay.org wrote:
* Simplified error messages in student languages, and use colors to
add visual information (see the teachpack manual for
This idea is proposed roughly every 2-3 years for at least 30 years.
I am not aware of anyone having made this idea fly.
Shriram
On Fri, Aug 5, 2011 at 12:13 AM, Robby Findler
ro...@eecs.northwestern.edu wrote:
I too tried it (ages ago) and ended up roughly where Eli is, but I
didn't want to
Noel is absolutely right.
We live in an era where Search Just Works. I do dozens of Google
searches on most days. To go from there to Help Desk is an incredibly
jarring experience. I have to load new instructions into my head:
stick to one word, stem!, etc., that I haven't had to use on
search
I suspect your related work section missed a few. (-:
On Fri, Aug 5, 2011 at 10:06 AM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
It was my Diplomarbeit finished in 1983, so that makes it 28 years now.
On Aug 5, 2011, at 12:17 AM, Shriram Krishnamurthi wrote:
This idea is proposed
We also have an extensive audience on the users list and in our
individual departments. So it would be easy to circulate a draft Web
page (no fancy download or even formatting) that simply says, I'm
guessing you are using a ... -- is this correct? and get lots of
people to test (and get more
Eli has asked us to wait. Please do so. He will reply in more detail
when he gets to a proper computer.
On Thu, Aug 11, 2011 at 3:36 PM, Guillaume Marceau gmarc...@gmail.com wrote:
On Thu, Aug 11, 2011 at 3:03 PM, Guillaume Marceau gmarc...@gmail.com
wrote:
Or we can trust that the Mozilla
(1) My hunch is that most of our downloaders -- especially
technically unsavy (what's the right word here?) people --
download one and only one thing from us.
And I suspect this is precisely why FF makes Windows the default (as
Guillaume has shown us). Everyone who's not on Windows is acutely
Windows done; specs below in case someone w/ a significantly different
machine wants to try it out too:
Windows 7 Home Premium
1.2 GHz ULV Intel Core i5-430UM
4 GB DDR3 RAM
SATA hard drive (5400 RPM)
Output is here:
http://www.cs.brown.edu/~sk/tmp/neil-toronto.tgz
The package looks amazing,
1. Racket's awesome cross-platform drawing library.
Robby, is this what you were trying to sell Danny on to support in WeScheme?
Shriram
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
Doesn't the same problem exist for other tools, such as the Tracer?
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
Thanks for this.
I really like the rounded-edge Download buttons that most software
systems now have. It seems odd to not have one for DrRacket. (I
brought this up some years ago when these weren't quite so prevalent;
now they're ubiquitous.)
The grey of the Platform line makes it look like
On firefox.com I was surprised to see that what I had always assumed
was an image was actually just CSS magic. Why not just copy it?
What I did for that is to change the color when focus moves in.
Yes, but the grey means I'm unlikely to move my cursor over it in the
first place. Why grey it
Robby, this is something I've brought up before, too. It may be the
default on the Mac, but it's certainly strange behavior on other
platforms. I often find DrRacket disappearing on me and wondering
why, then realizing...uh oh, close means something different.
On Thu, Aug 25, 2011 at 1:30 PM,
)?
On Thu, Aug 25, 2011 at 8:03 PM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
Yes, Robby, that would be great. The default should be to close as
little as possible, not as much as possible.
On Windows 7:
In Firefox, File | _C_ is indeed close *TAB*.
In Chrome, there isn't even a close
The docs at
http://docs.racket-lang.org/drracket/drracket-files.html?q=crash#(part._drracket-autosave-files)
are all about the autosave of files that have already been associated
with disk. What about those that haven't? There is no reference to
the Documents/mredauto.* files, which thankfully
Some bands make a racket.
On Mon, Sep 5, 2011 at 10:57 AM, Noel Welsh noelwe...@gmail.com wrote:
Band sounds more rock'n'roll, which is what we're aiming for.
Party on,
N.
On Mon, Sep 5, 2011 at 12:19 PM, Paulo J. Matos pa...@matos-sorge.com wrote:
On 03/09/11 19:01, Neil Van Dyke wrote:
[This is intentionally stream-of-consciousness...]
The planet home page doesn't say anything about how to report bugs
(the word bug really only appears in package descriptions, and
error doesn't at all). The same is true of individual packages. So
it's really not clear what one should do.
think we'll
change before planet 2.0.
Robby
On Tue, Sep 6, 2011 at 8:20 AM, Shriram Krishnamurthi s...@cs.brown.edu
wrote:
[This is intentionally stream-of-consciousness...]
The planet home page doesn't say anything about how to report bugs
(the word bug really only appears in package
In the planet documentation, I don't see a spec of the semantics of
versioning. (If it's there, can someone please point me to it?)
My understanding is this; can someone confirm or correct it? (The
#lang part probably isn't relevant, but since that's how I need to use
it, I'm being maximally
Did you see section 1.4 of the planet docs?
Yes, I did. It referred me to section 2 for the search order. The
rest of it is about referring to explicit version numbers, whereas my
message was about what happens if you leave off version numbers.
I guess I could boil down my basic question to,
Do you know about CPANTS? I just heard about it. The idea, as I
understand it, translated to our terms, is essentially this:
- every PLaneT package comes with a test suite
- when the package is downloaded, the test suite runs
- if the test suite fails, the user is informed right away (to
Is there a way for a custom language to get the coverage coloring
found in student languages? That is, is there something like how
(run-tests) (display-results)
does the textual equivalent of the check-expect GUI?
Thanks,
Shriram
_
For
This is for a #lang-language.
Is there a reason this can't be done programatically, like other
things in the language dialog? I understand it may not be possible in
the current release, but if there's no reason it can't, can you add it
for future releases? It feels like it is reasonable to
A different line of reasoning is this. DrRacket gives the impression
that coverage is a property of the language selected for a buffer.
That's why if I have two tabs, one in *SL and another in #lang racket,
one has coverage and other does not, without my having to ever touch
the Details panel.
Can't comment on option (b), but option (a) is what I was thinking of.
Isn't the tricky UI question already present, because a language
info can set some of the very same things in the details pane? I
didn't see this particular option introducing a new problem that was
not already there.
One
Just to clarify (a) is a kind of a cheap way out:
I agree. But (b) sounds like a lot of design and re-implementation
work; it would be unfortunate if that held up doing anything about
(a).
Shriram
_
For list-related administrative tasks:
I introduced templates today. Almost as if on cue, one student asked
whether he could use else instead of (cons? l). I told them I was
going to make a MORAL judgment about why it was EVIL, and spent ten
minutes talking about all that.
As class ended, one of my students came up and said,
So
In addition to what Jay said, when the datatype evolves, it's harder
for someone reading the code to tell whether the else was meant to
cover only one other case (and now there's two, and someone forgot to
update the function) or truly all the other cases.
When you have crisp predicates, I see no
With a classification system that really hopes that the past twenty
years never happened. Real useful. (And I guess it's the ACM's power
to make it look like they never did!)
Shriram
On Fri, Sep 30, 2011 at 2:22 PM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
ACM conference also classify
1. We don't have such an organization. Several companies are trying
to become this.
2. As I pointed out, ACM's classification has little to do with modern
CS. I struggle to find useful classifiers for many of my papers. So
it's largely useless for many things I do. If it's value-add was
1 - 100 of 112 matches
Mail list logo
