Re: Warning The package will no longer be detected starting from v1.42.0
On Sunday, 25 June 2023 at 12:21:52 UTC, Mathias LANG wrote: On Sunday, 25 June 2023 at 04:50:42 UTC, Soulsbane wrote: I'm guessing it's caused by this https://github.com/dlang/dub/pull/2610. What's the fix for this exactly? Thanks! A fix would be to do the following: ``` for package in $($HOME/Projects/D/libs/*); do mv -v $package $package/master/$(basename $package) done ``` Provided that all you have in your `libs` folder are folders that represent packages. This would also allow you to use different versions of a library (I'm assuming you only have one, hence the `master`), and work with libraries like Cybershadow's `ae`. However, I'm not sure we should expect our users to do this for a simple `add-path`. Yeah, each folder under libs is a package and it's own git repository. I think I'll just use the add-local approach. Kind of a pain but getting spammed with a page of warnings every compile is getting tiring :). Thanks a lot for the help Rikki and Mathias
Warning The package will no longer be detected starting from v1.42.0
Most of my homegrown libraries are private and are used locally for the most part. They are in ~/Projects/D/libs . Until now I've always used dub add-path and things worked fine. Updated my install am now getting this message: ``` Warning Package at path '/home/soulsbane/Projects/D/libs/textrecords/' should be under '/home/soulsbane/Projects/D/libs/textrecords/$VERSION/textrecords' Warning The package will no longer be detected starting from v1.42.0 ``` I'm guessing it's caused by this https://github.com/dlang/dub/pull/2610. What's the fix for this exactly? Thanks!
Re: D equivalent to Rust or Scala's Optional and Result and best practice ?
On Monday, 18 October 2021 at 16:03:53 UTC, dangbinghoo wrote: hi, It seems that now we have `Optional` and `Result` packages in Dub, are these enough or fully equal to Rust or Scala's error-handling and pattern-matching? if these are enough for real-code, any best practice advice? thanks! There is https://code.dlang.org/packages/optional plus a couple more available in packages.
Re: What kind of Editor, IDE you are using and which one do you like for D language?
On Sunday, 22 December 2019 at 17:20:51 UTC, BoQsc wrote: There are lots of editors/IDE's that support D language: https://wiki.dlang.org/Editors What kind of editor/IDE are you using and which one do you like the most? VSCode with this extension: https://marketplace.visualstudio.com/items?itemName=LaurentTreguier.vscode-dls
Re: Are there any DUB packages for displaying an ascii table?
On Sunday, 8 December 2019 at 08:12:49 UTC, mipri wrote: On Sunday, 8 December 2019 at 08:01:32 UTC, Soulsbane wrote: Been playing with Golang lately and it has quite a few modules for terminal tables. For example this one: github.com/brettski/go-termtables. Is there a D equivalent package? Can't seem to find any via search(which by the ways seems to give bad results or I just can't find the right word to search with). Thanks! This exists and was updated as recently as the first of December: https://code.dlang.org/packages/asciitable I don't see any other dub packages that look related. Thanks! I'll try it. The search seems to be really strict. Didn't show up when I searched 'table'. LOL doesn't show up with 'ascii' either. Put them together and it finds it. Thanks again though, I appreciate it!
Are there any DUB packages for displaying an ascii table?
Been playing with Golang lately and it has quite a few modules for terminal tables. For example this one: github.com/brettski/go-termtables. Is there a D equivalent package? Can't seem to find any via search(which by the ways seems to give bad results or I just can't find the right word to search with). Thanks!
Re: Distinguish float and integer types from string
On Saturday, 9 March 2019 at 18:11:09 UTC, Jacob Shtokolov wrote:
Hi,
Recently, I was trying to solve some funny coding challenges
(https://www.techgig.com).
The questions were really simple, but I found it interesting
because the website allows to use D.
One of the task was to take a string from STDIN and detect its
type.
There were a few options: Float, Integer, string and "something
else" (which, I think, doesn't have any sense under the scope
of the task).
Anyway, I was struggling to find a built-in function to
distinguish float and integer types from a string.
I came to the following solution:
```
import std.stdio;
import std.range;
import std.conv;
import std.string;
import std.format;
immutable msg = "This input is of type %s";
void main()
{
string type;
auto data = stdin.byLine.takeOne.front;
if (data.isNumeric) {
type = data.indexOf(".") >= 0 ? "Float" : "Integer";
}
else {
type = "string";
}
writeln(msg.format(type));
}
```
But I think that's ugly. The thing is that in PHP, for example,
I would do that like this:
```
if (is_integer($data)) {
//...do smth
}
else if (is_float($data)) {
//...do smth
}
else {
//...do smth
}
```
I tried to use std.conv.to and std.conv.parse, but found that
they can't really do this. When I call `data.to!int`, the value
of "123.45" will be converted to int!
Is there any built-in way to detect these types?
Thanks!
Unless I'm missing something perhaps two functions like this:
bool isInteger(string value) pure nothrow @safe
{
import std.string : isNumeric;
return (isNumeric(value) && value.count(".") == 0) ? true :
false;
}
bool isDecimal(string value) pure nothrow @safe
{
import std.string : isNumeric;
return (isNumeric(value) && value.count(".") == 1) ? true :
false;
}
Re: How do I the temlate parameter name as string?
On Tuesday, 27 November 2018 at 02:00:44 UTC, PacMan wrote:
ParameterIdentifierTuple from std.traits did work fine for
regular functions but not for template functions:
Error: template instance
`std.traits.ParameterIdentifierTuple!(f)` does not match
template declaration `ParameterIdentifierTuple(func...) if
(func.length == 1 && isCallable!func)` (foo)
f is defined as:
void f(T)(T t, string p)
if(is(T == A) || is(T == B))
{
// ...
}
my goal is get "p" as string.
If I'm understanding right I need this quite frequently so I
wrote this:
template nameOf(alias nameType)
{
enum string nameOf = __traits(identifier, nameType);
}
unittest
{
immutable int name;
assert(nameOf!name == "name");
}
Re: Windows Service
On Wednesday, 14 November 2018 at 19:38:08 UTC, Thomas wrote: Hi, I want to run a D program as a Windows service. After googl'in, I only found a very old project on github: https://github.com/tylerjensen/WindowsServiceInD Unfortunately, I wasn't able to compile it successfully. Does anybody know of newer approaches or even a template to start from? Thanks in advance, Thomas There is https://code.dlang.org/packages/daemonize I've only played with it a little on the Linux side so I'm not sure how good the windows service implementation is.
Re: Where do I learn to use GtkD
On Tuesday, 30 October 2018 at 04:22:21 UTC, helxi wrote: On Sunday, 13 March 2016 at 19:28:57 UTC, karabuta wrote: https://gitlab.com/9898287/gtkdnotes Oh Wow! That's really nice. Thanks for putting this together! Much appreciated.
Re: Is it bad form to put code in package.d other than imports?
On Wednesday, 3 January 2018 at 07:43:52 UTC, Jonathan M Davis wrote: On Wednesday, January 03, 2018 06:10:10 Soulsbane via Digitalmars-d-learn wrote: [...] The entire reason that the package.d feature was added was so that it would be possible to split a module into a package without breaking code. Anything beyond that was beyond the scope of the purpose of the feature, albeit not necessarily in conflict with its original purpose. [...] Wow! Thanks Johnathan for the thorough explanation!
Is it bad form to put code in package.d other than imports?
I've only understood that imports should go in package.d. I'm seeing more and more packages on code.dlang.org using it for the packages primary code. Is this alright? As far as I can tell it's just bad form. It would be nice to have one of the maintainers higher up the food chain comment on this! Thanks!
Re: html fetcher/parser
On Saturday, 12 August 2017 at 19:53:22 UTC, Faux Amis wrote: I would like to get into D again by making a small program which fetches a website every X-time and keeps track of all changes within specified dom elements. fetching: should I go for std curl, vibe.d or something else? parsing: I could only find these dub packages: htmld & libdominator. And they don't seem overly active, any recommendations? As I haven't been using D for some time I just don't want to get off with a bad start :) thx I've the requests module nice to work with: http://code.dlang.org/packages/requests
Re: DDox and filters.
On Thursday, 27 July 2017 at 03:01:50 UTC, Danni Coy wrote: I am trying to build my projects documentation via the ddox system via dub. It seems that my modules are being documented and then filtered out. Ironically for a documentation system there isn't a lot of documentation. What is the minimum I need in order for documentation to show up? how do I control the filter options. I think I had this problem and solved it by adding a comment block at the top describing the module.
Re: Recommend: IDE and GUI library
On Wednesday, 1 March 2017 at 20:23:57 UTC, aberba wrote:
On Friday, 24 February 2017 at 22:44:55 UTC, XavierAP wrote:
[...]
Gtkd is obviously defacto for Linux ONLY, dlangui for cross
platform app without native feel. But if you want something
easy and flexible with native look and feel on all platforms,
well tested, use LibUI (http://code.dlang.org/packages/libuid).
Look inside the "examples" folder in their Github repository to
see example usage.
More like:
auto hbox = new Box(false).setPadded(1);
vbox.append(hbox);
hbox.append(new Button("Button"))
.append(new Checkbox("Checkbox"))
...
Examples:
https://github.com/mogud/libuid/blob/master/examples/example1.d
https://github.com/mogud/libuid/blob/master/examples/example2.d
I second this. I've been playing with this recently and it's
really easy to use.
Re: Using filter with std.container.Array.
On Thursday, 23 March 2017 at 03:02:54 UTC, Jonathan M Davis wrote: On Thursday, March 23, 2017 02:53:40 Soulsbane via Digitalmars-d-learn wrote: [...] find just iterates to the first element that matches. It doesn't affect the range beyond that. It works basically the same way that find would work with iterators in that it iterates until it finds the element you're looking for. However, since ranges then refer to more than one element at a time, the rest of the range beyond that element is still there. [...] Thanks a lot for the explanation. It's much clearer to me now! You've been a big help.
Re: Using filter with std.container.Array.
On Wednesday, 22 March 2017 at 07:30:48 UTC, Jonathan M Davis
wrote:
On Wednesday, March 22, 2017 07:06:47 Soulsbane via
Digitalmars-d-learn wrote:
Example code:
struct Foo
{
string name;
size_t id;
}
Array!Foo foo_;
I get errors when I try to use filter like this:
auto found = filter!((Foo data, size_t id) => data.id ==
id)(foo_[], 100);
I get this error
source/app.d(15,62): Error: template
std.algorithm.iteration.filter!(function (Foo data, ulong id)
=>
data.id == id).filter cannot deduce function from argument
types
!()(RangeT!(Array!(Foo)), int), candidates are:
/usr/include/dmd/phobos/std/algorithm/iteration.d(1089,10):
std.algorithm.iteration.filter!(function (Foo data, ulong
id) =>
data.id == id).filter(Range)(Range range) if
(isInputRange!(Unqual!Range))
I can't figure out what I'm doing wrong. Thanks!
filter takes a unary predicate that gets called on each element
in a range. It's not going to work with a function that takes
two arguments, and filter itself isn't going to take two
arguments. You could do something like
auto result = filter!(a => a.id == 100)(foo_[]);
but you can't pass multiple arguments to filter. Also, if
you're looking to find an element, then find would make more
sense than filter, since filter is going to give you a lazy
range with every element that matches the predicate, whereas
find is just going to iterate the range until it finds the
element (or is empty) and then returns the range. But I don't
know whether calling the variable found was just the name you
came up with or whether you're really trying to do a find
operation rather than filter.
- Jonathan M Davis
Thanks for the reply Jonathan! Yes, I was trying to find all the
ids that match but couldn't get find to work. So I think I have
missed something somewhere.
As a quick example:
import std.stdio;
import std.algorithm;
import std.container;
struct Foo
{
string name;
size_t id;
}
Array!Foo foo_;
void main(string[] arguments)
{
Foo first;
first.id = 200;
Foo second;
second.id = 100;
Foo third;
third.id = 345;
Foo fourth;
fourth.id = 100;
foo_.insert(first);
foo_.insert(second);
foo_.insert(third);
foo_.insert(fourth);
auto filterIt = filter!((Foo data) => data.id == 100)(foo_[]);
auto foundIt = find!((Foo data) => data.id == 100)(foo_[]);
writeln(filterIt);
writeln(foundIt);
}
Will print:
[Foo("", 100), Foo("", 100)]
[Foo("", 100), Foo("", 345), Foo("", 100)]
I only want the ids that match 100. Looking at find's
documentation it looks like it's returning exactly as it should
but not the way I want. No 345 id.
Thanks for the help. I have this code working just fine using
foreach and have been trying to learn this different way of doing
things lately and my brain hurts :). Thanks again.
Using filter with std.container.Array.
Example code:
struct Foo
{
string name;
size_t id;
}
Array!Foo foo_;
I get errors when I try to use filter like this:
auto found = filter!((Foo data, size_t id) => data.id ==
id)(foo_[], 100);
I get this error
source/app.d(15,62): Error: template
std.algorithm.iteration.filter!(function (Foo data, ulong id) =>
data.id == id).filter cannot deduce function from argument types
!()(RangeT!(Array!(Foo)), int), candidates are:
/usr/include/dmd/phobos/std/algorithm/iteration.d(1089,10):
std.algorithm.iteration.filter!(function (Foo data, ulong id) =>
data.id == id).filter(Range)(Range range) if
(isInputRange!(Unqual!Range))
I can't figure out what I'm doing wrong. Thanks!
Re: Using tango with dub
On Saturday, 17 December 2016 at 20:26:53 UTC, albert-j wrote: I thought Tango was obsolete a long time ago. Is there a specific reason you need to use Tango and can't use Phobos? I need a Set implementation and from what I understand there isn't one in Phobos right now? Have you seen https://github.com/economicmodeling/containers it has a HashSet http://economicmodeling.github.io/containers/containers/hashset.HashSet.html
Re: Popular embedded language for scripting in D
On Saturday, 19 November 2016 at 22:18:39 UTC, Sai wrote: I have seen luad and Walters own JavaScript VM that can be used in D for embedded scripting purpose in an application. I was wondering which is more popular among D applications? Any suggestions? Thanks, sai I've used LuaD in a couple projects now and been fairly happy with it. I'm partial to Lua though(not a fan of Javascript).
