Re: could someone test support for Asian languages in nanogui port?
On Friday, 4 May 2018 at 10:40:52 UTC, drug wrote: I port nanogui, but besides porting I'd like to improve it using great capabilities of D language provides. One of them is utf support, so I added support for Asian languages to nanogui.TextBox. But I'm not sure I've did it well and so I'd like to ask someone to test it using the following: ``` git clone --recursive https://github.com/drug007/nanogui.git cd nanogui git checkout textbox # TextBox exists in this branch only dub --config=sdl # Keyboard events provided only by SDL2 backend only ``` On the right side there will be a window with four text boxes with russian, english, japanese and chinese text respectively. It would be nice to get some feedback from users - probably I did something totally wrong. Also I'm curious does it worth efforts? hi, I'm a Chinese, and I just have done the test. I also copied some Japanese text from Dlang twitter channel and added some Chinese wide punctuation Char. And It's all seems displayed correctly. The resulting screenshot is here: https://pasteboard.co/HjRmOYg.png The only problem is that the font style simply looks strange. You can see the 'normal' text display in Win10 by default like this: https://pasteboard.co/HjRrigh.png And the font problem is probably related to SDL or GL, for all UI based on GL or SDL, they all have the same problem. Dlangui also has the same situation, that's why I just did not use Dlangui for a production project. But, Anyway, the text is displayed correctly. Great work for doing this! Dlang needs a great GUI framework.
Re: Error: module `hello` is in file 'hello.d' which cannot be read
On Saturday, 5 May 2018 at 17:13:08 UTC, IntegratedDimensions wrote: You need to make sure hello.d is in the current dir dir C:\D does hello.d show up? If not, then dmd can't find it and you have to tell it where it is or be in the right location. type dmd ThereIsNowFileHere12342123242231231412.d and you will get the same error message. You have to be right. I removed the directory and started making de hello world file again and now it works. Thank you to everyone? Alex
Re: Error: cannot deduce function from argument types
On Saturday, 5 May 2018 at 17:06:13 UTC, Neia Neutuladh wrote: On Saturday, 5 May 2018 at 16:42:12 UTC, Sisor wrote: Error: template std.string.stripRight cannot deduce function from argument types You used http://dpldocs.info/experimental-docs/std.string.stripRight.html This function only takes one argument and strips whitespace. You want http://dpldocs.info/experimental-docs/std.algorithm.mutation.stripRight.1.html This function can take two arguments and strips the second from the first. https://dlang.org/phobos/std_string.html#.stripRight has an overload with a second argument. The std.algorithm.mutation version does only work with my second solution, which solves the problem. So thanks! But I still don't understand the problem.
Re: Error: module `hello` is in file 'hello.d' which cannot be read
On Saturday, 5 May 2018 at 12:26:20 UTC, Bauss wrote: Try to add module hello; To the top of the file Still not working. I tryed both module hello; and module 'hello'; C:\D\dmd2\sources>dmd hello.d Error: module `hello` is in file 'hello.d' which cannot be read import path[0] = C:\D\dmd2\windows\bin\..\..\src\phobos import path[1] = C:\D\dmd2\windows\bin\..\..\src\druntime\import C:\D\dmd2\sources>
Re: Error: module `hello` is in file 'hello.d' which cannot be read
On Friday, 4 May 2018 at 23:29:12 UTC, Alex wrote:
Hi
I just installed D on my windows 10 and want to try to compile
a hello world. My source is a classical
import std.stdio;
void main() {
writeln("Hello, World!");
}
And I try to compile and get
C:\D>dmd hello.d
Error: module `hello` is in file 'hello.d' which cannot be read
import path[0] = C:\D\dmd2\windows\bin\..\..\src\phobos
import path[1] = C:\D\dmd2\windows\bin\..\..\src\druntime\import
What do I do wrong ?
D is installed at de root of C:, and the hello.d source code is
at C:\D\dmd2\sources.
Thank you to you
Alex
You need to make sure hello.d is in the current dir
dir C:\D
does hello.d show up?
If not, then dmd can't find it and you have to tell it where it
is or be in the right location.
type
dmd ThereIsNowFileHere12342123242231231412.d
and you will get the same error message.
Re: Error: cannot deduce function from argument types
On Saturday, 5 May 2018 at 16:42:12 UTC, Sisor wrote: Error: template std.string.stripRight cannot deduce function from argument types You used http://dpldocs.info/experimental-docs/std.string.stripRight.html This function only takes one argument and strips whitespace. You want http://dpldocs.info/experimental-docs/std.algorithm.mutation.stripRight.1.html This function can take two arguments and strips the second from the first.
Error: cannot deduce function from argument types
Hi,
I have a function:
string strippedString(ubyte[] block) {
return (cast(string)block).stripRight("\0");
}
With dmd it compiles, with ldc it produces the following error
message:
Error: template std.string.stripRight cannot deduce function from
argument types !()(string, string), candidates are:
/usr/lib/ldc/x86_64-linux-gnu/include/d/std/string.d(2902,6):
std.string.stripRight(Range)(Range str) if (isSomeString!Range
|| isRandomAccessRange!Range && hasLength!Range &&
hasSlicing!Range && !isConvertibleToString!Range &&
isSomeChar!(ElementEncodingType!Range))
/usr/lib/ldc/x86_64-linux-gnu/include/d/std/string.d(3015,6):
std.string.stripRight(Range)(auto ref Range str) if
(isConvertibleToString!Range)
ldmd2 failed with exit code 1.
Why?
The modified function does not even compile with either compiler:
string strippedString(ubyte[] block) {
return cast(string)( block.stripRight(0) );
}
How can I make the function more specific, so that the compiler
knows, which option to take?
Kind regards,
Sisor
Re: Windows to Linux Porting - timeCreated and timeLastAccessed
On Fri, 2018-05-04 at 08:02 -0600, Jonathan M Davis via Digitalmars-d-learn wrote: > […] > Linux does not keep track of the creation time of a file. So, it will not > work to have a program on Linux ask a file how long it's been since the file > was created. If you want that information, you'll have to store it elsewhere […] Linux itself doesn't but most filesystems certainly do. Ext4 definitely does. https://unix.stackexchange.com/questions/7562/what-file-systems-on-linux-store -the-creation-time -- Russel. == Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Roadm: +44 7770 465 077 London SW11 1EN, UK w: www.russel.org.uk signature.asc Description: This is a digitally signed message part
Re: Error: module `hello` is in file 'hello.d' which cannot be read
On Friday, 4 May 2018 at 23:29:12 UTC, Alex wrote:
Hi
I just installed D on my windows 10 and want to try to compile
a hello world. My source is a classical
import std.stdio;
void main() {
writeln("Hello, World!");
}
And I try to compile and get
C:\D>dmd hello.d
Error: module `hello` is in file 'hello.d' which cannot be read
import path[0] = C:\D\dmd2\windows\bin\..\..\src\phobos
import path[1] = C:\D\dmd2\windows\bin\..\..\src\druntime\import
What do I do wrong ?
D is installed at de root of C:, and the hello.d source code is
at C:\D\dmd2\sources.
Thank you to you
Alex
Try to add
module hello;
To the top of the file
Re: Is HibernateD dead?
On Friday, 4 May 2018 at 19:54:46 UTC, Matthias Klumpp wrote:
I've written an email to Vadim, maybe we get a reply on the
status of both projects.
On Friday, 4 May 2018 at 07:18:09 UTC, bauss wrote:
[...]
Would it maybe be easier for you to base on ddbc[1] or
another existing abstraction layer for database abstraction?
Ddbc is pretty neat, and even has support for reading structs
directly from the database.
Perhaps, but it'd have to be a forked version as I don't
really want to depend on something that isn't updated
regularly.
ddbc's last commit was a year ago.
Yes, at the moment using ddbc and relying on it would mean
taking over some maintenance of it. Ddbc is fairly complete
though and might save you a lot of work, because it already
abstracts a lot of (relational) database systems.
I can't seem to find a license for it though?
It's Boost licensed (BSL-1.0), but probably needs an explicit
LICENSE file.
Maybe we can move ddbc to dlang-community, so more people can
easily commit changes to it (provided it gets accepted there,
and Vadim agrees with that move as well).
Perhaps I will end up having another "optional" dependency
to it as a temporary until I can have a better
implementation or something.
Taking over maintenance of it might be easier than
reimplementing the database abstraction again though.
For Postgres, ddbc worked really well for me, and I assume its
SQLite, MySQL and ODBC drivers are also still working well,
meaning less work for you.
Without ddbc, you'd have to write new abstraction on top of
some other libraries, like dpq2.
The frontend part of postgresql is almost finished, it's
just having the postgresql driver working properly, which is
where it's frozen right now.
Hmm... Does any public code for that exist already that I
could play around with?
Unfortunately, I have a few more unusual requirements for
Postgres, like:
* UUIDs as primary keys, instead of integers
As far as I remember the implementation of @DbId in Diamond,
then it supports whatever type.
Native support for std.uuid.UUID would be neat :-) For
Hibernated I use a mixin to convert a UUID into strings
transparently, for database insertion.
Diamond doesn't care much about what type your primary key is.
I will make sure that's how it function of course, if it
currently doesn't behave like it, but I'm pretty sure it does.
* Ability to register custom datatypes with the ORM (version
numbers in this case, the ORM can view them as text, but the
database has a special type for them)
That could be done with some attribute that lets you handle
columns yourself.
Do you have a good name for it?
I was thinking @DbProxy and then the function would be
something like:
[...]
Registering a new type with Postgres yields a new OID to
identify the type, so I would need a function to tell the
Postgres backend to treat OIDs of a certain number like "text"
types. Ideally, I would also need to annotate entity to set a
specific column type, like:
```
class Entity {
UUID uuid;
@ColumType("versionnumber")
string _version;
}
```
(With the result of CREATE TABLE not setting a "text" type for
the new version column, but a "versionnumber" type instead)
That would do it. For Hibernated, I have Hibernated create the
table initially, and then fire an ALTER TABLE at it afterwards
to change the column type, while at the same time registering
the new type OID with ddbc to be treated as text.
As said, this is a very specific requirement very few people
will have ^^
Much more frequently people will ask for JSONB and JSON type
support for a postgres driver though, I guess. For that,
specifying the column type explicitly could be quite helpful as
well, so switch between JSONB and JSON.
* Obviously the usual ORM stuff, one-to-many, many-to-many,
etc. relations
Yes, relations is one thing I haven't added and I have been
wanting to do it for a while.
I will definitely look into having it added as well.
That's kind of key for an ORM :-) Handling relations manually
was what made me abandon my "I just write raw SQL for
everything" ways, because it gets quite complex and annoying in
the long run.
(Obviously not a must-have list, I added support for custom
datatypes to my ddbc fork as well, because it's not really a
feature many people need)
Well, that's kind of the key to most of the development in
Diamond.
I usually add functionality that isn't widely used and in most
cases people implement it themselves ex. the whole diamond.seo
is not usually something a framework has.
I keep an eye on it - at the moment, Vibe.d satisfies all
requirements I have on a web framework, but that might change.
A well integrated ORM would certainly be a game changer, since
Vibe.d is limited to Mongo and Redis only.
Diamond is a neat project, I played around with it about half
a year ago, but didn't test the ORM part at all back then.
It wasn't that goo
Re: Error: module `hello` is in file 'hello.d' which cannot be read
Thank you for you for your quick answer. I think I allready tryed this, before asking, but ... C:\>cd D\dmd2\sources C:\D\dmd2\sources>dmd hello.d Error: module `hello` is in file 'hello.d' which cannot be read import path[0] = C:\D\dmd2\windows\bin\..\..\src\phobos import path[1] = C:\D\dmd2\windows\bin\..\..\src\druntime\import C:\D\dmd2\sources>
Re: Store any callable in an array
On 05/05/2018 02:30 AM, Neia Neutuladh wrote: On Friday, 4 May 2018 at 19:12:16 UTC, ag0aep6g wrote: If toDelegate isn't (always) @safe, how can you be sure that your wrapper is? [...] Looking at the code, I believe there are several casts that the compiler can't verify but are used safely. If you're right and the casts are used safely, and if that's the one thing that makes toDelegate @system, then toDelegate should be marked as @trusted. Or the casts should be @trusted, if they can be isolated like that. But belief isn't strong enough for that. You should be certain when applying @trusted. And thinking of all the ways that code might be unsafe is tricky, especially when you're dealing with arbitrary types in a template. Also, TFunc may have an unsafe destructor. [...]> If it's a user-defined type with opCall, that's something to pay attention to, but it's beyond the scope of the original question. That's the one. The scope of the original question doesn't matter if you don't restrain your function in the same way. Your function accepts structs, so you have to take them into account. Also, the thread is about "anything" callable. That includes structs with opCall.
Re: Is HibernateD dead?
On Thursday, 3 May 2018 at 10:27:47 UTC, Pasqui23 wrote: Last commit on https://github.com/buggins/hibernated was almost a year ago So what is the status of HibernateD?Should I use it if I need an ORM? Or would I risk unpatched security risks? You can use Entity & Database library: https://github.com/huntlabs/entity https://github.com/huntlabs/database
