Lunesu - D

Modern COM Programming in D

nospam@example.com (Lio) — Tue, 24 Jan 2012 16:53:25 +0000

I finally got around to asking for permission to share the slides of a tech talk I did more than a year ago: Modern COM Programming in D

In the slides I explain how I've made a projection for COM into D, which allows you to use COM objects without the usual hassle of refcount/QueryInterface/HRESULT/BSTR/etc... Sharing the code will be hard (mostly because of the shape it's in) but the slides basically contain all you need. Actually, D has progressed a lot since, so a rewrite might be in order anyway.

UPDATE: Add your comments below or on Reddit.

import std.stdio, comxml;

void main()
{
    // Create a new empty document 
    auto doc = XmlDocument();

    // Load an XML document from an inline string
    doc.LoadXml("世界你好helloworld");

    // Get the first node's value 
    auto text = doc.DocumentElement.FirstChild;
    // Write the node's value to the console
    writeln(text.NodeValue);

    // Perform a simple XPath query
    auto nodes = doc.SelectNodes("/root/a/text()");

    // Do iteration through the child nodes
    foreach (node; nodes.First)
        writeln(node.NodeValue);

    // Access the child nodes by index 
    for (uint t = 0; t < nodes.length; ++t)
        writeln(nodes[t].NodeValue);
}

Presenting the D Programming Language

nospam@example.com (Lio) — Wed, 10 Mar 2010 14:48:59 +0000

I'll be presenting the D Programming Language at the next monthly BLUG meeting. It'll mostly be for people who haven't heard of D yet. There'll be a fair chunk of D1 in there, but I'm hoping to touch some of D2's new features as well.

These meetings are free for everyone to attend, so come by if you live in Beijing, or you happen to be there.

More information at the BLUG website.

See you there!

UPDATE: my slides are now available.

As if 0xDEADBEEF and 0xDECAFBAD were not enough...

nospam@example.com (Lio) — Thu, 14 May 2009 10:28:00 +0000

Long time no post. My page is still being blocked (I might just as well resurrect that post about Tbet) and having to use VPN to write a post is just too much effort.

So why this post? I just had to share my latest brainchild with the rest of the world:

0xCEFAC1BA

Hover the mouse over the text to see its meaning. It's a hexadecimal value that when considered as words is Romanian for "WTF are you doing!". This turns out to be applicable because similar 'magic numbers' are often used to catch software bugs: when the the special value appears, the programmer knows something is wrong.

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