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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

Personal Projects

Lepl parser for Python.

Colorless Green.

Photography around Santiago.

SVG experiment.

Professional Portfolio

Calibration of seismometers.

Data access via web services.

Cache rewrite.

Extending OpenSSH.

C-ORM: docs, API.

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© 2006-2015 Andrew Cooke (site) / post authors (content).

Hiding HN Karma

From: andrew cooke <andrew@...>

Date: Wed, 17 Mar 2010 18:03:17 -0400

A few times recently I have been frustrated by the "karma" system on Hacker
News.  Today I posted a short rant saying it was "broken".  But then I got to
thinking and decided perhaps *I* was the problem.  Maybe it's working as it
should (or at least, in a way that's hard to improve) and, instead of hoping
someone fixes the site, I should fix myself in some way.

Brain surgery being out of the question, I had a look at GreaseMonkey.  I've
never used GreaseMonkey, or jQuery, but it was only a few minutes work to
write something that hides both my karma (from the top titlebar) and thread
karma (displayed by each comment).

In fact, the code required, apart from GS + JQ boilerplate, is just:

    // sets the titlebar karma value to "bhk"
    $('body table:first td:nth-child(3) span.pagetop').contents().filter(
        function() {return this.nodeType == 3;} // text node
        ).replaceWith(' (bhk) | ');
    // clear the thread scores
    $('[id^=score_]').empty();

If anyone else wants to use this, you need to:

 1 - install GreaseMonkey
 https://addons.mozilla.org/en-US/firefox/addon/748

 2 - load the script
 http://www.acooke.org/badhnkarma.user.js

that's it.

I used the following resources:
 - http://diveintogreasemonkey.org/helloworld/divein.html
 - http://joanpiedra.com/jquery/greasemonkey/
 - http://jquery.com/

Andrew

Un-greyed Text

From: andrew cooke <andrew@...>

Date: Thu, 18 Mar 2010 05:31:06 -0400

I've extended the script to un-grey text, so that downboted links appear the
same as normal ones:

    $('font[color=#888888]').each(
        function () {$(this).attr('color', '#000000');}
        );

Also, in use it's rather slow - it's best to open links in tabs, let them
load, and then read them...

Andrew

Undead Links

From: andrew cooke <andrew@...>

Date: Thu, 18 Mar 2010 07:38:21 -0400

I'm also ungreying dead comments (and colours above is now for various shades
of grey)

    // change dead links to black
    $('span.dead').each(
        function () {$(this).attr('class', '');}
        );

Andrew

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