Alexander V Vershilov alexander.vershi...@gmail.com writes:
The problem is that Prelude.getLine uses current locale to load characters:
for example if you have utf8 locale, then everything works out of the box:
$ runhaskell 1.hs
résumé 履歴書 резюме
résumé 履歴書 резюме
But if you change locale
with Unicode quite well.
Anyway, the problem is partially solved: I patched my WinGHCi so it no
longer chokes on Unicode input, and as for compiled .exe... I'll see.
2013/2/22, Jon Fairbairn jon.fairba...@cl.cam.ac.uk:
Alexander V Vershilov alexander.vershi...@gmail.com writes:
The problem
to switch to the UTF-8 code page.
Unfortunately, code page and encoding is only half of the battle; the
other half is fonts. Most Windows fonts are incomplete; all Windows
fixed-width fonts are incomplete. (Silver lining: Arial Unicode is
sufficiently complete.) Therefore, you may be unable
(It works! Because Windows has Unicode for 20 years
now), but the output is all messed up. In a rather curious way,
actually: the input string is converted to UTF-8 byte string, and its
bytes are treated as being characters from my local code page.
So, it appears that I have no way to enter Unicode
contains Latin-1, Cyrillic and Kanji symbols at the same
time.
But there is also WinGHCi. So I do :main, copy-paste this string
into the window (It works! Because Windows has Unicode for 20 years
now), but the output is all messed up. In a rather curious way,
actually: the input string
such an outrageous string
— Windows console is locked to one specific local code page, and no
codepage contains Latin-1, Cyrillic and Kanji symbols at the same
time.
But there is also WinGHCi. So I do :main, copy-paste this string
into the window (It works! Because Windows has Unicode for 20
-- Forwarded message --
From: Semyon Kholodnov joker...@gmail.com
Date: Thu, 21 Feb 2013 16:26:58 +0400
Subject: Re: [Haskell-cafe] How to input Unicode string in Haskell program?
To: Alexander V Vershilov alexander.vershi...@gmail.com
I know that this problem doesn't exist
I've been putting together a proposal for Unicode identifiers
in Erlang (it's EEP 40 if anyone wants to look it up). In
the course of this, it has turned out that there is a technical
problem for languages with case-significant identifiers.
Haskell 2010 report, chapter 2.
http://www.haskell.org
I try to maintain some knowledge of Unicode issues, but this one never
occurred to me.
On Fri, Nov 2, 2012 at 10:28 AM, Richard O'Keefe o...@cs.otago.ac.nz wrote:
Would anyone care to see and comment on the proposal
before I send it to Unicode.org? Anyone got any suggestions
before I begin
Hello, community!
I have some strange issue with recent XMonad: with using of standard Shell
module it is not possible to use unicode input. It simply freezes up and in
console I can observe:
Enum.toEnum{Word8} : tag (1092) is outside of bounds (0,255).
What function may cause such error
I want to have Unicode symbols for type operator:
{-# LANGUAGE TypeOperators #-}
data a ── b = Foo a b
But it doesn't work. Any suggestions?
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On Mon, 2011-09-12 at 11:51 +0400, Grigory Sarnitskiy wrote:
I want to have Unicode symbols for type operator:
{-# LANGUAGE TypeOperators #-}
Add also:
{-# LANGUAGE UnicodeSyntax #-}
data a ── b = Foo a b
But it doesn't work. Any suggestions?
Regards
signature.asc
Description
+0400, Grigory Sarnitskiy wrote:
I want to have Unicode symbols for type operator:
{-# LANGUAGE TypeOperators #-}
Add also:
{-# LANGUAGE UnicodeSyntax #-}
data a ── b = Foo a b
But it doesn't work. Any suggestions?
Regards
___
Haskell-Cafe
2011/9/12 Grigory Sarnitskiy sargrig...@ya.ru
Still
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE UnicodeSyntax #-}
data a ── b = Foo a b
leads to
test.hs:4:6: Malformed head of type or class declaration: a ── b
Failed, modules loaded: none.
Don't all infix constructors have to start
2011/9/12 Brandon Allbery allber...@gmail.com:
Don't all infix constructors have to start with a colon?
Yes that is true. You can of course use Unicode symbols as infix type variables:
(⋙) :: Category ⇝ = (α ⇝ β) - (β ⇝ γ) - α ⇝ γ
But a constructor must always begin with a capital letter
My guess is that you are closing the file descriptor out from under the
handle. It is probably the handle that has the open iconv connection, and
since it is never closed, you run out of memory.
Why not just interact with the handle? Use hPutStr instead of fdWrite, and
hClose instead of closeFd.
Hi,
I wanted to see if anyone had an idea about why the following program
results in an exception. The issue seems to be related to stdin to a
POSIX file descriptors for a subprocess, and GHC's Unicode encoding
lookup. I've tried to make the program as simple as possible to make
the issue
.
On 20 April 2011 03:02, wren ng thornton w...@freegeek.org wrote:
Hello all,
I'm in need of a Unicode normalization function, Utf8 NFC for ByteString in
particular. From some quick Googling around it looks like the only available
option is to use ICU in some form. The text-icu package has a nice
Hello all,
I'm in need of a Unicode normalization function, Utf8 NFC for ByteString
in particular. From some quick Googling around it looks like the only
available option is to use ICU in some form. The text-icu package has a
nice binding to it, but unfortunately that means a lot of redundant
Hi everyone !
I'm having a problem in GHCi when loading modules relying on the
base-unicode-symbols package. My prompt gives me the following
message:
ghci $
GHCi, version 7.0.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp
On Wed, Mar 30, 2011 at 10:37:47PM +0200, John Obbele wrote:
I'm having a problem in GHCi when loading modules relying on the
base-unicode-symbols package. My prompt gives me the following
message:
ghci $
Loading package base-unicode-symbols-0.2.1.2 ... linking ... interactive:
/home
john.obb...@gmail.com wrote:
On Wed, Mar 30, 2011 at 10:37:47PM +0200, John Obbele wrote:
I'm having a problem in GHCi when loading modules relying on the
base-unicode-symbols package. My prompt gives me the following
message:
ghci $
Loading package base-unicode-symbols-0.2.1.2 ... linking
been trying to deal with how my haskell program handles unicode
filenames. Been dealing with problems like those described here:
http://hackage.haskell.org/trac/ghc/ticket/3307
Or, simply demonstrated by feeding unicode to getLine = readFile
My approach currently is to carefully identify any
I've been trying to deal with how my haskell program handles unicode
filenames. Been dealing with problems like those described here:
http://hackage.haskell.org/trac/ghc/ticket/3307
Or, simply demonstrated by feeding unicode to getLine = readFile
My approach currently is to carefully identify
On 22 October 2010 16:38, Bryan O'Sullivan b...@serpentine.com wrote:
[Blog copy of the announcement here.]
I just pushed it to bitbucket and github, and you can install it from
the text site on Hackage in the usual way:
cabal update
cabal install text
What's in this release?
New
On Fri, Oct 22, 2010 at 10:30 AM, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
For example, I assume that it's better to try and use Text throughout
rather than continually packing String values (in my case, I'm looking
at using Text for I/O in graphviz; should I then start using Text
decoding and encoding are now very
fasthttp://www.serpentine.com/blog/2010/10/15/unicode-text-performance-improvements/.
They're up to 9x faster than they were, and close to the performance of pure
C UTF-8 decoding and encoding.
-
The Eq and Ord instances are also now very fast, up to 5x
On Wednesday 08 September 2010 06:44:32, Bryan O'Sullivan wrote:
I have a Replace.hs benchmark in the main text repo, just to be sure
we're talking about the same thing.
Grabbed the darcs repo, compiled with the darcs version and also with the
installed text package, both exhibit the same
On Wednesday 08 September 2010 13:46:13, Daniel Fischer wrote:
My timings are quite different, but that's probably because 6.12.3's
inliner doesn't give the full fusion benefit, so it'll improve
automatically with the next GHC release.
Or maybe not so much. Just built the latest source bundle
On Wed, Sep 1, 2010 at 12:29 PM, Daniel Fischer daniel.is.fisc...@web.dewrote:
I'm on Linux. I guess that's another point in favour of it:)
Do you happen to know why it's slower on a Mac?
I'd guess because of something to do with the system iconv.
So I tentatively believe most of the
On Wed, Sep 1, 2010 at 1:00 PM, Daniel Fischer daniel.is.fisc...@web.dewrote:
I'm not keen on subscribing to libraries@ to follow the official proposal
process, any takers?
I'll take it up.
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On 1 September 2010 15:14, John Millikin jmilli...@gmail.com wrote:
[aside] does anybody know how to get a list of what packages
somebody's uploaded to Hackage? I think I've updated all mine for the
new text version dependency, but I'm worried I forgot some.
Unfortunately, no; I've often
On Wed, Sep 1, 2010 at 07:14, John Millikin jmilli...@gmail.com wrote:
Don't forget, you can always improve the text library yourself. I love to
receive
patches, requests for improvement, and bug reports.
Are there any areas in particular you'd like help with, for either
library? I'm
2010/9/1 Tako Schotanus t...@codejive.org:
As a Haskell noob I'm curious about this statement, is there something
intrinsically wrong with String?
String is just a linked list of Char which are unicode code points;
which is probably not the optimal way to store text.
For intensive use of text
Hi Tako,
The issues involved with String, ByteString, Text and a few related
libraries were discussed at great length recently in this thread:
http://groups.google.com/group/haskell-cafe/browse_thread/thread/52a21cf61ffb21b0/
Basically, Chars are 32 bit integers and Strings are represented as a
Hi Kevin,
thanks for the pointer, although I was aware of the thread and had followed
it quite closely, it was quite interesting.
But it never explained if and why String should be avoided, all I read is
test and decide depending on the circumstances, which in itself is good
advise, but I'd like
library provides an efficient packed, immutable Unicode text
type (both strict and lazy), with a powerful loop fusion optimization
framework.
The 'Text' type represents Unicode character strings, in a time
and space-efficient manner. This package provides text
processing capabilities
Hi, Daniel -
Thanks for taking the new code for a test drive!
The interesting part is the comparison between text and vanilla String I/O,
the difference is smaller than I expected for text-0.8.0.0.
Yes. Much of this is due to the new encoding stuff on Handles in GHC 6.12,
which is slow. Its
On Tue, Aug 31, 2010 at 10:14 PM, John Millikin jmilli...@gmail.com wrote:
Is there a summary of the API changes available? I see a new module,
but Precis is choking on Data.Text and Data.Text.Lazy, so I'm not sure
what existing signatures have been modified.
Ouch. I'll try to do a diff and
On Wednesday 01 September 2010 18:15:19, Bryan O'Sullivan wrote:
Hi, Daniel -
Thanks for taking the new code for a test drive!
The interesting part is the comparison between text and vanilla String
I/O, the difference is smaller than I expected for text-0.8.0.0.
Yes. Much of this is due
On Wednesday 01 September 2010 21:29:47, Daniel Fischer wrote:
that's where you definitely get a space leak, because
intersperse :: a - [a] - [a]
intersperse _ [] = []
intersperse _ [x] = [x]
intersperse sep (x:xs) = x : sep : intersperse sep xs
isn't lazy enough.
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Hash: SHA1
On 09/01/2010 02:44 AM, Ivan Lazar Miljenovic wrote:
On 1 September 2010 16:27, David Virebayre
dav.vire+hask...@gmail.com wrote:
Sometimes I'd love if I could program using String and the
compiler would automatically convert that to Text, or
New in this release:
- Substantial performance improvements.
- Bug fixes, and better quality assurance via automated QuickCheck and
HPC tests and coverage.
- An even nicer API than before.
The text library provides an efficient packed, immutable Unicode text type
(both strict
Is there a summary of the API changes available? I see a new module,
but Precis is choking on Data.Text and Data.Text.Lazy, so I'm not sure
what existing signatures have been modified.
Don't forget, you can always improve the text library yourself. I love to
receive
patches, requests for
Thanks for getting back to me. I was imprecise, by UTF8 characters I
mean Unicode. My source files are UTF8-encoded, and Haskell reads them
fine, it only has problems outputting them in a readable way. At this
point I'm not talking of any I/O besides plain console output.
Not using Show
2010/8/29 Peter Gromov gromop...@gmail.com:
Thanks for getting back to me. I was imprecise, by UTF8 characters I
mean Unicode. My source files are UTF8-encoded, and Haskell reads them
fine, it only has problems outputting them in a readable way. At this
point I'm not talking of any I/O besides
to me. I was imprecise, by UTF8 characters I
mean Unicode. My source files are UTF8-encoded, and Haskell reads them
fine, it only has problems outputting them in a readable way. At this
point I'm not talking of any I/O besides plain console output.
How are you outputting them? Unless you use
On 29 August 2010 21:24, Peter Gromov gromop...@gmail.com wrote:
Yes, it's GHC 6.12.3. Character escapes are the least I want to see.
*sigh* that could be because HUnit is calling print ( = putStrLn .
show) on the String rather than putStrLn; unfortunately unless it
decides to have a special
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On 8/29/10 07:35 , Ivan Lazar Miljenovic wrote:
On 29 August 2010 21:24, Peter Gromov gromop...@gmail.com wrote:
$ locale LANG= LC_COLLATE=C LC_CTYPE=C LC_MESSAGES=C
LC_MONETARY=C LC_NUMERIC=C LC_TIME=C LC_ALL=
Unfortunately, I'm completely
Hi all,
I've been considering using Haskell for my natural language processing
project. Due to its nature, it has much to do with Unicode.
Unfortunately, Haskell escapes UTF8 characters. I've been able to
output these strings via System.IO.UTF8.putStrLn (though I wish it was
less painful
gromopetr:
Hi all,
I've been considering using Haskell for my natural language processing
project. Due to its nature, it has much to do with Unicode.
Unfortunately, Haskell escapes UTF8 characters. I've been able to
output these strings via System.IO.UTF8.putStrLn (though I wish
Hi Arie,
If you don't mind binding code.
You can try to use GIO APIs from my repository:
http://patch-tag.com/r/AndyStewart/gio-branch/home
GIO APIs handle unicode filename every well, and cross-platform.
Cheers,
-- Andy
Arie Peterson ar...@xs4all.nl writes:
After upgrading to haskell
, such as displaying icons/filetypes,
launching documents...)
Hi Arie,
If you don't mind binding code.
You can try to use GIO APIs from my repository:
http://patch-tag.com/r/AndyStewart/gio-branch/home
GIO APIs handle unicode filename every well, and cross-platform.
Cheers,
-- Andy
Arie
Hello Andy,
Friday, May 28, 2010, 1:05:59 AM, you wrote:
Looks my file-manager:
http://farm5.static.flickr.com/4027/4584389024_782b1e09ee_o.png
can you please share windows and linux executables and source code?
I have finish all necessary GIO APIs at
Hello Bulat,
Friday, May 28, 2010, 9:24:02 AM, you wrote:
I have finish all necessary GIO APIs at
http://patch-tag.com/r/AndyStewart/gio-branch/home
but what is the license?
heh, i've found COPYING file. but what you mean? if it's just about
one should share all improvements to the library
After upgrading to haskell-platform-2010.1.0.0, with the improved unicode
support for IO in ghc-6.12, I hoped to be able to deal with filenames
containing non-ascii characters. This still seems problematic, though:
$ ls
m×n♯α
$ ghci
GHCi, version 6.12.1: http://www.haskell.org/ghc/ :? for help
On Wed, May 26, 2010 at 1:25 PM, Arie Peterson ar...@xs4all.nl wrote:
Is this a known problem? I searched ghc's trac, but there are no relevant
bugs for the component 'libraries/directory'.
This bug might be relevant:
http://hackage.haskell.org/trac/ghc/ticket/3307
Arie Peterson wrote:
After upgrading to haskell-platform-2010.1.0.0, with the improved unicode
support for IO in ghc-6.12, I hoped to be able to deal with filenames
containing non-ascii characters. This still seems problematic, though
Yes, unfortunately. This is not simple to fix, for several
.
According to Simon Marlow,
Be careful with FilePaths. On Windows they are interpreted as Unicode,
on Unix they are interpreted as [Word8], by taking the low 8 bits of
each Char. So if you always encode FilePaths to UTF-8, that will break
on Windows. Fixing FilePaths is a high priority.
The last
В сообщении от 24 апреля 2010 06:14:55 вы написали:
Khudyakov Alexey wrote:
Actually, the behavior of openFile when given a String with characters
0xFF is also completely undocumented. I am not sure what it does with
that. It should probably be the same as runCommand, whatever it is.
Here is a very interesting little problem.
ghci
GHCi, version 6.12.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude :m System.Process
Prelude
this, and perhaps a version of
runProcess that accepts ByteStrings.
It should just use system locale for encoding like System.IO do.
FYI I just submitted bug to GHC trac:
http://hackage.haskell.org/trac/ghc/ticket/4006
P.S. Haskell libraries aren't very well designed with respect to unicode
John Goerzen jgoer...@complete.org writes:
ghci
GHCi, version 6.12.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude :m System.Process
Prelude
Ivan Lazar Miljenovic wrote:
John Goerzen jgoer...@complete.org writes:
ghci
GHCi, version 6.12.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude :m
В сообщении от 24 апреля 2010 03:50:54 John Goerzen написал:
Ivan Lazar Miljenovic wrote:
John Goerzen jgoer...@complete.org writes:
ghci
GHCi, version 6.12.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking
Khudyakov Alexey wrote:
Actually, the behavior of openFile when given a String with characters
0xFF is also completely undocumented. I am not sure what it does with
that. It should probably be the same as runCommand, whatever it is.
Under unices file names are just array of bytes. There is
Indeed, the Unicode only made it through my system, and not the mailer
itself. In fact, the name should look something like Ćwikłowski,
and not the garbled mess that made it through. Apologies again, Bartek!
/Joe___
Haskell-Cafe mailing list
The new 0.7 release of the text
packagehttp://hackage.haskell.org/package/textadds support for
Unicode I/O, using either the new locale-aware Handle code
in 6.12 or a fallback on older releases.
Details:
http://www.serpentine.com/blog/2009/12/15/data-text-0-7-gains-io-support
bos:
The new 0.7 release of the text package adds support for Unicode I/O, using
either the new locale-aware Handle code in 6.12 or a fallback on older
releases.
Details: http://www.serpentine.com/blog/2009/12/15/
data-text-0-7-gains-io-support/
That was ridculously fast.
-- Don
Bryan O'Sullivan b...@serpentine.com writes:
using either the new locale-aware Handle code in 6.12 or a fallback
on older releases.
How do you manage this? Any chance of abstracting something like this
out (ala extensible-exceptions)?
--
Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com
On Tue, Dec 15, 2009 at 3:15 AM, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
Bryan O'Sullivan b...@serpentine.com writes:
using either the new locale-aware Handle code in 6.12 or a fallback
on older releases.
How do you manage this? Any chance of abstracting something like
Bryan O'Sullivan b...@serpentine.com writes:
The fallback is very simple: on versions of GHC older than 6.12, you get
UTF-8 codecs and your platform's native newline conversion, and that's it
:-) There really isn't anything to abstract.
Aha, you use Text's own decoding/encoding functions, so
On Tue, Dec 15, 2009 at 2:33 PM, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
Aha, you use Text's own decoding/encoding functions, so it isn't very
useful for other libraries that don't use Text :(
Huh? I am confused. The point of the text I/O code is to support I/O on the
Text
Bryan O'Sullivan b...@serpentine.com writes:
Huh? I am confused. The point of the text I/O code is to support I/O on the
Text type. What else would I be wanting there?
Yes, but I thought you were using utf8-string or something for it (that
is, something not Text-specific).
--
Ivan Lazar
Bryan O'Sullivan wrote:
The new 0.7 release of the text package
http://hackage.haskell.org/package/text adds support for Unicode I/O,
using either the new locale-aware Handle code in 6.12 or a fallback on
older releases.
Details:
http://www.serpentine.com/blog/2009/12/15/data-text-0-7-gains
On Tue, Dec 15, 2009 at 8:03 PM, Ashley Yakeley ash...@semantic.org wrote:
How do you pack Unicode codepoints into Word16? Do you use UTF-16?
You don't get to find out as a user of the Text API, but yes.
Supposing -
s = \x010A60\x010A61 -- Old South Arabian script
t = pack s
http://corsis.sourceforge.net/img/csharp-6.png
http://corsis.sourceforge.net/img/csharp-6.pngo__O!?
2009/12/16 Bryan O'Sullivan b...@serpentine.com
On Tue, Dec 15, 2009 at 8:03 PM, Ashley Yakeley ash...@semantic.orgwrote:
How do you pack Unicode codepoints into Word16? Do you use UTF-16
Cetin Sert wrote:
http://corsis.sourceforge.net/img/csharp-6.png
http://corsis.sourceforge.net/img/csharp-6.pngo__O!?
That's just C# string literals. In Haskell, '\x010A60' '\x010A61', but
in C#, '\x010A' '6' '0' '\x010A' '6' '1'.
--
Ashley Yakeley
2009/12/10 Richard O'Keefe o...@cs.otago.ac.nz:
On Dec 10, 2009, at 2:58 AM, Roel van Dijk wrote:
I tried to be conservative with the choice of unicode symbols. I have
defined the division sign (÷) to be (/). But it could just as well be
defined as 'div'.
No it couldn't. One expects 3÷2
Hello,
I would like the announce the release of my package unicode-symbols:
http://hackage.haskell.org/package/unicode-symbols
It offers alternative symbols for a number of common functions and
operators from the base and containers packages. When used in
combination with the language extension
On Dec 10, 2009, at 2:58 AM, Roel van Dijk wrote:
I tried to be conservative with the choice of unicode symbols. I have
defined the division sign (÷) to be (/). But it could just as well be
defined as 'div'.
No it couldn't. One expects 3÷2 to be 1½, not 1.
You will, for example, find
2009/12/9 Richard O'Keefe o...@cs.otago.ac.nz
On Dec 10, 2009, at 2:58 AM, Roel van Dijk wrote:
I tried to be conservative with the choice of unicode symbols. I have
defined the division sign (÷) to be (/). But it could just as well be
defined as 'div'.
No it couldn't. One expects 3÷2
Hello,
Is there a way to get the source documentation from cabal haddock
--hyperlink-source to show up with unicode characters preserved?
Right now the unicode from my comments and source programs are being
mangled. I tried the --haddock-option=--use-unicode option, but it
seems to only work
Hi.
Reading the Haskell 98 Report (section 9.2), I have found a possible
problem.
The lexical syntax supports Unicode, however this is not true for the
newline:
newline - return linefeed | return | linefeed | formfeed
The Unicode standard adds two additional characters:
U+2028 LINE SEPARATOR
Hi,
While I agree that the documentation of Data.Generics is not perfect, I do
not think it is possible to have the haddock documentation be
self-contained. For a thorough understanding of syb, a user has to read the
two initial papers, which are linked from the haddock documentation. I also
do
On a somewhat related note, I think the Haskell documentation in general is
rather
patchy and hard to follow for most things. Part of that I think is because
of the
confusion between the different forms of documentation. In general as a
programmer
I expect to find three kinds of documentation
On Mon, Oct 19, 2009 at 4:32 PM, Kyle Murphy orc...@gmail.com wrote:
If they have to spend three hours trying to track down some obscure
research paper that's referenced in your documentation a half dozen times
in as many functions, you're not providing enough detail and assuming too
great a
Hi John,
On Sun, Oct 11, 2009 at 14:58, John Lato wrote:
For anyone writing introductions to generic programming, take this as
a plea from Haskellers everywhere. If one of the RWH authors can't
understand how to make use of these techniques, what hope do the rest
of us have?
I would like
From: Derek Elkins derek.a.elk...@gmail.com
On Sun, Oct 11, 2009 at 8:55 AM, Iain Barnett iainsp...@gmail.com wrote:
On 11 Oct 2009, at 13:58, John Lato wrote:
For anyone writing introductions to generic programming, take this as
a plea from Haskellers everywhere. If one of the RWH
For anyone writing introductions to generic programming, take this as
a plea from Haskellers everywhere. If one of the RWH authors can't
understand how to make use of these techniques, what hope do the rest
of us have?
John Lato
P.S. Some might wryly note that I'm the maintainer of a package
On 11 Oct 2009, at 13:58, John Lato wrote:
For anyone writing introductions to generic programming, take this as
a plea from Haskellers everywhere. If one of the RWH authors can't
understand how to make use of these techniques, what hope do the rest
of us have?
John Lato
P.S. Some might
Bryan O'Sullivan wrote:
On Fri, Oct 9, 2009 at 8:33 AM, Jeremy Shaw jer...@n-heptane.com
mailto:jer...@n-heptane.com wrote:
What are the chances of seeing a, instance Data Text, some day?
I might as well follow up here, since I've sent Jeremy a couple of
messages on this subject.
I
Hello Neil,
Sunday, October 11, 2009, 5:58:51 PM, you wrote:
I had a crack at a simple proper Data instance, and got as far as
needing a Data instance for ByteString#, accompanied by an error I don't
impossible. i'm not sure wher i've read this but those # types (Int#,
ByteArray# and so on)
On Sun, Oct 11, 2009 at 8:55 AM, Iain Barnett iainsp...@gmail.com wrote:
On 11 Oct 2009, at 13:58, John Lato wrote:
For anyone writing introductions to generic programming, take this as
a plea from Haskellers everywhere. If one of the RWH authors can't
understand how to make use of these
Get it while it's fresh on Hackage, folks! Details of the changes here:
http://bit.ly/1u4UOT
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Sweet!
What are the chances of seeing a, instance Data Text, some day? text
would be a great type to use with Happstack, because it is far more
memory efficient than String. But it is difficult to do that with out
a instance of Data.
For the time being, I have been hacking it with:
On Fri, Oct 9, 2009 at 8:33 AM, Jeremy Shaw jer...@n-heptane.com wrote:
What are the chances of seeing a, instance Data Text, some day? text would
be a great type to use with Happstack, because it is far more memory
efficient than String. But it is difficult to do that with out a instance of
On Fri, Oct 9, 2009 at 8:33 AM, Jeremy Shaw jer...@n-heptane.com wrote:
What are the chances of seeing a, instance Data Text, some day?
I might as well follow up here, since I've sent Jeremy a couple of messages
on this subject.
I think maybe someone else will have to take a crack at a Data
Based on section 5.2 of this paper:
http://www.cs.vu.nl/boilerplate/gmap2.pdf
I wonder if the Data instance I provided is the best possible option
with out modifying SYB. And that the optimal solution would be to
extend ConstrRep to support Text as a primitive:
data ConstrRep
= AlgConstr
Hi Bryan,
On Fri, Oct 9, 2009 at 2:11 AM, Bryan O'Sullivan b...@serpentine.com wrote:
Get it while it's fresh on Hackage, folks! Details of the changes here:
http://bit.ly/1u4UOT
This is superb!
I tried to post a comment to your website, but it may have been lost.
It seems that the
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