I'm trying to use std.xml, and I can't get it to work.

I tried the simplest program I could think of:

import std.xml;
import std.stdio;

void main()
{
	auto parser = new DocumentParser("<?xml version=\"1.0\" encoding=\"utf-8\"?><device></device>");
    parser.onStartTag["device"] = (ElementParser parser)
    {
        writeln("device");
    };
    parser.parse();	
}

https://dpaste.dzfl.pl/262597d2fda6

I used it before without any trouble.  Is it somehow seriously broken?  If not, what am I doing wrong?

Thanks,
Mike

On Sunday, 30 July 2017 at 02:58:09 UTC, Mike wrote:

> import std.xml;
> import std.stdio;
>
> void main()
> {
> 	auto parser = new DocumentParser("<?xml version=\"1.0\" encoding=\"utf-8\"?><device></device>");
>     parser.onStartTag["device"] = (ElementParser parser)
>     {
>         writeln("device");
>     };
>     parser.parse();	
> }
>
> https://dpaste.dzfl.pl/262597d2fda6
>
> I used it before without any trouble.  Is it somehow seriously broken?  If not, what am I doing wrong?

It appears `onStartTag` does not handle the root element.  For example, this code seems to work:

import std.xml;
import std.stdio;

void main()
{
	auto parser = new DocumentParser("<?xml version=\"1.0\" encoding=\"utf-8\"?><device><peripheral></peripheral></device>");
    parser.onStartTag["peripheral"] = (ElementParser parser)
    {
        writeln("peripheral");
    };
    parser.parse();	
}

Mike

On Sunday, 30 July 2017 at 02:58:09 UTC, Mike wrote:
> I'm trying to use std.xml, and I can't get it to work.
>
> I tried the simplest program I could think of:
>
> import std.xml;
> import std.stdio;
>
> void main()
> {
> 	auto parser = new DocumentParser("<?xml version=\"1.0\" encoding=\"utf-8\"?><device></device>");
>     parser.onStartTag["device"] = (ElementParser parser)
>     {
>         writeln("device");
>     };
>     parser.parse();	
> }
>
> https://dpaste.dzfl.pl/262597d2fda6
>
> I used it before without any trouble.  Is it somehow seriously broken?  If not, what am I doing wrong?
>
> Thanks,
> Mike

I don't know about your code specifically, but std.xml has been on the chopping block for many years and is pretty much still around because nobody has written a replacement yet. I'd recommend using Adam Ruppe's DOM library instead:

https://github.com/adamdruppe/arsd/blob/master/dom.d

On Sunday, 30 July 2017 at 03:16:35 UTC, Mike wrote:
> On Sunday, 30 July 2017 at 02:58:09 UTC, Mike wrote:
>
>> [...]
>
> It appears `onStartTag` does not handle the root element.  For example, this code seems to work:
>
> import std.xml;
> import std.stdio;
>
> void main()
> {
> 	auto parser = new DocumentParser("<?xml version=\"1.0\" encoding=\"utf-8\"?><device><peripheral></peripheral></device>");
>     parser.onStartTag["peripheral"] = (ElementParser parser)
>     {
>         writeln("peripheral");
>     };
>     parser.parse();	
> }
>
> Mike

You may want to try the experimental candidate for Phobos instead, which was developed as a GSoC project but never finished:

http://code.dlang.org/packages/std-experimental-xml

On Sunday, 30 July 2017 at 03:16:35 UTC, Mike wrote:
> It appears `onStartTag` does not handle the root element.

Looks like a bug. Until the module is replaced, bug reports are still accepted for it.