Accessing object properties where objects are in a sequence

Hi there, this is a thing that's a little bit harder in Nim than some other languages, but here's how you can do it without switching to object variants. import json type Base = ref object of RootObj a: int Child = ref object of Base b: int

Keep a http connection alive and hand it off to another proc

Thanks. I use websockets in other projects.

Keep a http connection alive and hand it off to another proc

Sorry I can't solve your SSE issues, but I would recommend giving a WebSockets a try. Here is a library I wrote for them: ...

doc2tex

Note that `doc2tex` was added to 1.5.1 devel and will only be available in 1.6 stable release.

Passing JsonNode from Nimscript to host proc

To use overloading use something like: proc aInt(x: int) = discard "VM implements it" proc aString(x: string) = discard "VM implements it" proc a(x: int) = aInt(x) proc a(x: string) = aString(x) Run

Call parent `$` from overwritten converter?

By the way, you don't need it as a converter unless you really want it to convert to string automatically. Echo calls `$` by itself so you can just make it a `proc` instead of a `converter` and your example will work the same.

Call parent `$` from overwritten converter?

Thanks! It's that simple ;)

Call parent `$` from overwritten converter?

`system.`$`(a) ` Run

Call parent `$` from overwritten converter?

I have this code: type Answer* {.pure.} = enum A, B, C, T, N converter `$`*(a: Answer): string = case a: of Answer.T: "Tak" of Answer.N: "Nie" else: $a #How to call parent? echo (A, B, T, N) Run

Passing JsonNode from Nimscript to host proc

Would you suggest that I marshal and unmarshal via string instead? I mean it is straightforward, but it takes a lot of boilerplate code on both sides. I don't mind the boilerplate on the host side, but the script side I would like to keep as clean as possible ... Can you do type overloading on

How do I list the files in a directory in Nim?

> I'd say it's better for beginners to see sugar version, as otherwise a person > may see verbose non-sugar version and never look at Nim again. While we need more users and can never have enough users maybe we don't need _every_ user though...

Links of websites built with Karax?

I'm using karax to rebuild a site which displays charts and metrics. It is going well and should be deployed in the next 2 months. The site is not public, unfortunately. Before this it was Go templates and vanilla js.

Passing JsonNode from Nimscript to host proc

I don't know why you don't get a compile-time error for `value: any` but it's not supported. If you want to `cast` (and you shouldn't) cast the address of the JsonNode to `int` (but `GC_Ref` it first) and use `PNode(kind: nkIntLit, intVal: address)`. And in the VM don't forget to `GC_unref` it.

Passing JsonNode from Nimscript to host proc

Could I for example consider VMArgs as just bits and tell Nim that I want it to cast bit x..^1 as a JsonNode?

I'm having a Nim+Lua+Libtcod callback wrapping problem

I'm using Love2d and trying to get libtcod to go along with it, so I'm wrapping its functions in Nim (with libtcod_nim). But there's two functions in the pathfinding API that require a callback. This might be straightforward if I was just using libtcod on its own with Nim, but in this case the c

Links of websites built with Karax?

It seems like there's none sadly. I really like Karax and would love to make something commercial with it, it's just that I don't need it for work and don't have enough spare time or motivation to start something myself.

Passing JsonNode from Nimscript to host proc

Hi @araq. Yes that is ofc one way to do it :) In fact that was basically what I was doing, I had ´setInContext( "some.dot.path", $node )´ in the script call, `proc setInContext*( path: string, value: string ) = discard` in the host function declaration and `let value = args.getString( 1 )` in th

What is the status of Nim IUP?

That's news to me. :-)

What is the status of Nim IUP?

IUP does include a browser widget, text editor widget and IDE widget.

Accessing object properties where objects are in a sequence

Well, switching my program from using standard Objects to Object variants has proved a good move so far, i am able to use Json to save the objects and restore them very easily. The only downside i came across was when passing an object variant to a procedure, Nim would not allow me to use the v

What is the status of Nim IUP?

But it was dropped, it's now a Nimble package. Under the nim-lang organization, but still.

Why is backward index operator [^1] not zero based [^0]?

> The beauty of Nim is you can define your own backward index operator to > override the normal one that acts like this. Though I'm not sure if the > proposal that made non-system symbols always override system symbols was > implemented, so maybe you can't name it ^ yet. Please don't do this, y

What is the status of Nim IUP?

Thanks for your replies. Maybe IUP should be dropped from the standard library then?

What is the status of Nim IUP?

I would use Fidget, Qt, Gtk3 or wxWidgets instead. The "small and written in C" stuff usually suffers from these problems: * Type unsafe APIs. Welcome to callbacks taking `pointer` arguments. * Type unsafe APIs. Welcome to passing string values instead of enum values for "extensibility" and

Passing JsonNode from Nimscript to host proc

Well the PNode does not support JSON, you should be able to pass the JSON as a string though (PNode(kind: nkStrLit, strVal: "{json_here")).

Why is backward index operator [^1] not zero based [^0]?

It was indeed decided to be 1-based because of Python and Ruby.

Keep a http connection alive and hand it off to another proc

Still trying to bend SSE my way, but running into a problem. I'll try to describe it by the process flow I envisioned. Full code below (using Prologue server) Client connects to web server, GET: sse/. sse accepts and sends back headers, among them keep-alive. Then the connection is added to a l

What is the status of Nim IUP?

Well, I would say it is the awesome library but unfortunately it is not maintained for years. But it may be downloaded and set up manually at . It works perfect with Windows and Linux platforms, but I could not compile it on MacOS. Note, that you will need to

Why is backward index operator [^1] not zero based [^0]?

It's analogous to the index `-1` in languages like Python and Ruby, and the simplicity of subtracting from the length.

What is the status of Nim IUP?

The standard library documentation includes bindings to the IUP GUI library. However, no direct downloads are provided, not is there any information on how to build a Nim IUP GUI application with IUP either statically or dynamically. Are these bindings maintained? Is IUP the official GUI librar

Why is backward index operator [^1] not zero based [^0]?

This might be controversial but if the first element is [0] I think the last element should be [^0]. Intuitively I would expect a[^n] == reversed(a)[n] Run Not really a question, more an opinion, but usability and intuition matters to me.

Why is backward index operator [^1] not zero based [^0]?

I think that's because `mySeq[^1] == mySeq[mySeq.len - 1]`, so simply subtracts from `.len`