Hey all,
I wrote a simple email module in Yesod[1] that handles such things as
multipart messages and Base64 encoding. It's still missing some
features (multipart/alternative, for instance), but it can be useful
for throwing together emails. It's currently part of the yesod
package, but I'm going
Hi Michael,
Last time I checked Hackage for email libraries I could find some
basic SMTP systems but nothing very recent or robust.
Practically every web app needs to send email, so I think that a
robust and well maintained email package would be very useful.
I know you have many other projects
Last summer I put cabalized HaskellNet (written by Jun Mukai for a
GSOC) (http://hackage.haskell.org/package/HaskellNet)
and uploaded it to hackage. I put myself down as a maintainer but I
haven't done much maintaining.
HaskellNet also does multipart mime and base64 stuff as well as imap
and pop
Hi Robert,
I did look at HaskellNet a few months ago.
It looked big and undocumented so I guess I got scared away.
What I'd be interested in is something with the simplicity of the PHP
mail command (or perhaps the phpmailer package).
I dislike PHP as a programming language but it does basic
On 13 Oct 2010, at 16:55, Ozgur Akgun wrote:
Cafe,
Just a quick question. Either I am hallucinating or there was a way
of saying ghci to always show types. It was working as if you typed
:t it after every line of input.
Sorry, I searched but couldn't find the option via google. Hope
On Sat, Oct 16, 2010 at 21:39, Stephen Tetley stephen.tet...@gmail.com wrote:
Hello list
The Monad and Applicative instances for functions are equivalent to
the respective Reader vesions (I use equivalent along the lines of -
operationally the same but without the type distinction / newtype).
Yes you're right Kevin. I'll put up a new release sometime in the
next week with some more examples
and possible some simpler methods if only so HaskellNet can be more
easily evaluated.
As I recall Happstack also uses an smtp library. I forget which one.
-Rob
On Sun, Oct 17, 2010 at 9:29 AM,
On 17 October 2010 04:45, Duane Johnson duane.john...@gmail.com wrote:
I bumped into a segmentation fault in the regex library today and thought
I'd warn others in case similar behavior is observed:
Prelude :m Text.Regex
Prelude Text.Regex map read (splitRegex (mkRegex \\|) 0|1|2|4) ::
[Int]
Hello list,
I'm trying to make a clickable link in gtk2hs program. Clicking it
should open an url in the default browser. Can I hope to find some
portable solution in gtk2hs (it should work in linux and windows) or
should I start searching platform specific ones, like /usr/bin/xdg-open
or
At any rate, if you intend to prove this for any arbitrary f, I
can't
tell you how to prove it formally because it's not true.
How do you know that? Can you give an example where it fails?
The problem with the code you originally posted was that it looked
like this:
f r = do r' -
On 17 Oct 2010, at 05:21, Ben Franksen wrote:
I want to prove that
f r == do
s1 - readIORef r
r' - newIORef s1
x - f r'
s3 - readIORef r'
writeIORef r s3
return x
That is not true. Consider the following function:
g r1 r2 = writeIORef r1 0 writeIORef r2 1
On Sun, Oct 17, 2010 at 6:49 AM, Miguel Mitrofanov
miguelim...@yandex.ru wrote:
On 17 Oct 2010, at 05:21, Ben Franksen wrote:
I want to prove that
f r == do
s1 - readIORef r
r' - newIORef s1
x - f r'
s3 - readIORef r'
writeIORef r s3
return x
That is not true.
Hi Erik and wren
Thanks for both messages.
On 17 October 2010 10:12, Erik Hesselink hessel...@gmail.com wrote:
[Snip]
I think you can just use the original instance for Monoid for this. It
declares
instance Monoid b = Monoid a - b
since 'b' can itself be a function (and r1 - r2 - a is
On Sun, Oct 17, 2010 at 11:15 AM, Malcolm Wallace
malcolm.wall...@me.com wrote:
The problem with the code you originally posted was that it looked like
this:
f r = do r' - something
f r'
something else -- this is dead code
That is, the computation is non-terminating,
Hi Dmitry,
Dmitry V'yal akam...@gmail.com writes:
Hello list,
I'm trying to make a clickable link in gtk2hs program. Clicking it should
open an url in the default
browser. Can I hope to find some portable solution in gtk2hs (it should work
in linux and windows)
or should I start
Derek Elkins wrote:
On Sun, Oct 17, 2010 at 6:49 AM, Miguel Mitrofanov
miguelim...@yandex.ru wrote:
On 17 Oct 2010, at 05:21, Ben Franksen wrote:
I want to prove that
f r == do
s1 - readIORef r
r' - newIORef s1
x - f r'
s3 - readIORef r'
writeIORef r s3
return x
That is not true.
Ben Millwood wrote:
On Sun, Oct 17, 2010 at 11:15 AM, Malcolm Wallace
malcolm.wall...@me.com wrote:
The problem with the code you originally posted was that it looked like
this:
f r = do r' - something
f r'
something else -- this is dead code
That is, the computation is non-terminating,
On 17/Oct/10 8:02 AM, Michael Snoyman wrote:
In the gist you sent, the problem is that you are reading the HTTP
response as a String. The HTTP library doesn't deal well with
non-Latin characters when doing String requests; you should be using
ByteString and then converting. It's a little tedious
Hi Ben,
Ben Franksen wrote:
Suppose we have a function
f :: IORef a - IO b
I want to prove that
f r == do
s1 - readIORef r
r' - newIORef s1
x - f r'
s3 - readIORef r'
writeIORef r s3
return x
I'm not sure where in your question the quantifiers for
Hi cafe,
I'd like to implement a toy-protocol and I'm looking for the sanest
way (for me) to do so.
Here's what it looks like:
The server receives, in that order:
- Ascii string (4 bytes)
- 16 bits int (2 bytes)
- 8 bits int (1 byte)
- UTF8 string (128 bytes)
I tried to use hGetBuf, but I don't
On 17/Oct/10 3:37 PM, Michael Snoyman wrote:
On Sun, Oct 17, 2010 at 2:26 PM, Ionut G. Stanionut.g.s...@gmail.com wrote:
Thanks Michael, now it works indeed. But I don't understand, is there any
inherent problem with Haskell's built-in String? Should one choose
ByteString when dealing with
Something along the lines of these examples would be helpful I think:
http://phpmailer.worxware.com/index.php?pg=examples
Phpmailer is probably the most widely used email library, so if it
could be shown that there was a Haskell equivalent (or better), I
think that might start attracting the
I'm a bit partial to Swift Mailer [1]. It's useful to support multiple
transport backends, especially in situations where sendmail is not
portable.
Cheers,
Edward
[1] http://swiftmailer.org/
___
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
OK, I've put together a new repository on github[1]. I've modified the
original code from Yesod to now include support for
multipart/alternative, and to only create a multipart when there
really are multiple parts. I've done some simple tests, and it seems
to work just fine. Now a question for
On Oct 17, 2010, at 5:37 AM, Michael Snoyman mich...@snoyman.com wrote:
in the case of JSON, I believe this is always specified as UTF-8.
RFC 4627 section 3 says that JSON must be encoded in Unicode, but all encodings
are acceptable. The encoding is inferred by the firsthand four octets. So you
On 16/10/2010, at 12:36, Max Bolingbroke wrote:
On 16 October 2010 12:16, Roman Leshchinskiy r...@cse.unsw.edu.au wrote:
eta :: Stream a - Stream a
eta s = Stream s next
where
next (Stream s next') = case next' s of
Just (x,s') - Just (x,Stream s' next')
On Sun, Oct 17, 2010 at 10:14 AM, Michael Snoyman mich...@snoyman.com wrote:
I'm sure people would love to see built-in support for serving over
SMTP, but I think that's more appropriate for a different package.
Proper SMTP support will also include SSL/TLS support, which will
require even
Hello all,
I'm trying to reuse as much of the sweat and tear put into GHC as
possible to derive a compiler for a language highly similar to Haskell
in many aspects. The difference is that instead of constructing an
expression of type IO (), the programmer has to provide a stream
processor on the
On Sun, 17 Oct 2010, Patai Gergely wrote:
I'm trying to reuse as much of the sweat and tear put into GHC as
possible to derive a compiler for a language highly similar to Haskell
in many aspects. The difference is that instead of constructing an
expression of type IO (), the programmer has to
On Thu, 14 Oct 2010 12:01:59 +0200, Michael Snoyman
mich...@snoyman.com wrote:
[...] which I believe is a flawed
design in the MonadCatchIO-transformers package. Here are my thoughts
on this and what I think needs to be done to fix it.
[...]
Try running the code with each version of go
And it is not enough to provide just a driver function, that is called in
'main', say
run :: IOArrow a b - a - IO b
?
No, because I need to compile the stream processing program itself by a
different tool. I just want to trick GHC into doing much of the
weightlifting. No IO monad is
As I have migrated more of my application into Haskell, I find that
I/O in one thread effectively blocks other threads. That's rather
the opposite of what I need - I don't care so much if Haskell threads
manage to compute in parallel, but the application should continue
to function, in other
That said, I've been told that UHC's core language uses the ideas from
Strict Core, and they have/had a student at Utretch (Tom Lokhorst) who
was working on implementing optimisations like arity raising and deep
unboxing for the language.
Many/most implementations of ML-ish languages use a
Good start, if only the advanced were replaced with something more
characteristic, like lazy, or statically typed. Which, BTW, both do not
appear in the whole blurb, even though they are *the* characteristics of
Haskell, lazyness being even something that sets it apart from most other
Ketil Malde schrieb:
Don Stewart d...@galois.com writes:
Good start, if only the advanced were replaced with something more
characteristic, like lazy, or statically typed. Which, BTW, both do not
lazy and statically typed don't mean much to other people. They are
buzz words that mean
On Sun, Oct 17, 2010 at 1:32 PM, Stefan Monnier
monn...@iro.umontreal.ca wrote:
AFAIK laziness is a property of the major implementations of Haskell,
but not really of the language itself. All I see in the Haskell report
points at it being applicative, call by name, but nowhere does the
How about a bullet list of Haskell's features (maybe pros cons)
might be better; followed by a list of a few other languages and their
trade-offs.
As Jon Bentley has said, design is usually trade-offs but when you
can come up with something that is a mutual benefit; so much the
better.
On Sun, Oct 17, 2010 at 1:04 PM, Arie Peterson ar...@xs4all.nl wrote:
On Thu, 14 Oct 2010 12:01:59 +0200, Michael Snoyman
mich...@snoyman.com wrote:
[...] which I believe is a flawed
design in the MonadCatchIO-transformers package. Here are my thoughts
on this and what I think needs to be
Quoth Jeremy Shaw jer...@n-heptane.com,
...
I wonder what it would take to make it so that the message body could
be multipart mime...
Well, here's what it takes for me -
- function to determine file type of attachment (e.g., image/jpeg)
- data encoding (base64, maybe quoted-printable, others)
On Sun, Oct 17, 2010 at 12:12 PM, Patai Gergely
patai_gerg...@fastmail.fm wrote:
And it is not enough to provide just a driver function, that is called in
'main', say
run :: IOArrow a b - a - IO b
?
No, because I need to compile the stream processing program itself by a
different tool.
Donn Cave d...@avvanta.com writes:
As I have migrated more of my application into Haskell, I find that
I/O in one thread effectively blocks other threads. That's rather
the opposite of what I need - I don't care so much if Haskell threads
manage to compute in parallel, but the application
Not sure how this fits into what I thought you were saying. Are you
trying to use Haskell to build an AST, use GHC to optimize it, and
then spit it out and compile it with, say, a OCaml program that you
have already written?
Yes, that would be the basic idea:
1. Compile the Haskell
Note that in my experience working on SML/NJ's optimizer (using
wrapper+inlining), such an approach to code transformation doesn't care
about types at all, and indeed most/all of what tacc-hs09.pdf presents
is mostly unrelated to whether the language is typed: e.g. the
uncurrying of the
An honest list of cons mentioned up-front is a great idea and would attract
me to a language. It shows me that the community is grounded, active ,
pragmatic and helpful.
-deech
On Sun, Oct 17, 2010 at 1:45 PM, cas...@istar.ca wrote:
How about a bullet list of Haskell's features (maybe pros
On Sat, Oct 16, 2010 at 3:02 AM, Stephen Tetley
stephen.tet...@gmail.com wrote:
If a functional language doesn't mean anything significant then
Haskell probably isn't the language you should be choosing.
People who don't know what 'functional language' means can still get
all the benefits of
On Sun, Oct 17, 2010 at 3:25 PM, Bryan O'Sullivan b...@serpentine.com wrote:
On Mon, Oct 11, 2010 at 1:12 PM, Malcolm Wallace malcolm.wall...@me.com
wrote:
find find find (Text - Bool) - Text - Maybe Text
Proposal: rename Text.findBy to Text.find.
I agree with the
On Sun, Oct 17, 2010 at 3:11 PM, aditya siram aditya.si...@gmail.com wrote:
An honest list of cons mentioned up-front is a great idea and would attract
me to a language. It shows me that the community is grounded, active ,
pragmatic and helpful.
Yes. It's called damaging admission, and
On Sun, Oct 17, 2010 at 1:51 PM, Antoine Latter aslat...@gmail.com wrote:
What would the definition of a function of the form:
find :: (Text - Bool) - Text - Maybe Text
look like?
Can you be more specific? I assume you mean that the only sensible return
values are Nothing or the entire
On Sun, Oct 17, 2010 at 4:05 PM, Bryan O'Sullivan b...@serpentine.com wrote:
On Sun, Oct 17, 2010 at 1:51 PM, Antoine Latter aslat...@gmail.com wrote:
What would the definition of a function of the form:
find :: (Text - Bool) - Text - Maybe Text
look like?
Can you be more specific? I
Hi Mathew
Matthew Brecknell wrote:
Ben Franksen wrote:
Suppose we have a function
f :: IORef a - IO b
I want to prove that
f r == do
s1 - readIORef r
r' - newIORef s1
x - f r'
s3 - readIORef r'
writeIORef r s3
return x
I'm not sure where in your
On 16/10/2010, at 10:35 PM, Andrew Coppin wrote:
Also, it's news to me that Java finds heavy use anywhere yet. (Then again, if
they run Java server-side, how would you tell?)
Java seems to be used heavily for developing mobile phone applications
(other than iPhone, of course). My young
[I wrote initially, ...]
As I have migrated more of my application into Haskell, I find that
I/O in one thread effectively blocks other threads.
Resolved - the SSL_read external I/O function needs to be safe.
My apologies for botching the mailing list threading, but I deleted
the mail wherein
On Sat, Oct 16, 2010 at 8:45 AM, Brandon S Allbery KF8NH
allb...@ece.cmu.edu wrote:
I thought Windows already had a system message for something like that. Or
at least it used to, although I can see why it would have been removed or at
least deprecated.
You're probably thinking of
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