Author Archives: jcs

An Analysis of PIN Numbers

Over at Data Genetics there’s a great analysis of PIN numbers. By aggregating data from several breaches Nick Berry gathered 3.4 million PIN numbers and performed extensive analysis on them. Every possible value was represented in the sample but they … Continue reading

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Editing The Occur Buffer

Here’s a great Emacs 24 tip from Xah Lee’s Google+ ErgoEmacs circle. If you’re in an Emacs occur buffer you can call 【Meta+x】 occur-edit-mode and then make changes to the occur buffer that will be reflected in the original file. … Continue reading

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Apple Maps

Much has been written lately about Apple abandoning Google maps in favor of their own in iOS 6. There are, it seems to me, two aspects to the change and the imbroglio that followed. The first is why Apple decided … Continue reading

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A wgrep Demonstration

Xah Lee has a post recommending wgrep, an Emacs extension that allows you to edit the results of grep and have the results reflected in the original file(s). This is good stuff. Although he didn’t write wgrep, Magnar Sveen demonstrates … Continue reading

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Getting Started with Common Lisp on OS X

I was reading Nikodemus Siivola’s excellent Common Lisp FAQ and came across a reference to Jonathan Fischer’s guide to getting started with Common Lisp on OS X. If you’re an Machead who’s wanting to get started with CL, these instructions … Continue reading

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Images in Emacs

Christopher Wellons over at null program has a nifty post on rendering fractals in Emacs. He shows how to draw and display fractal using Emacs lisp. I didn’t know you could do stuff like that. The Elisp writes the image … Continue reading

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Security Roundup

It’s been a busy week on the security front. Of course, that’s true of most weeks but here’s some interesting stories from the past few days: CloudCracker is offering a special this week on their MS-CHAPv2 service. They will break … Continue reading

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Emacs Rocks! Episode 13

Magnar Sveen is on a tear and has posted another Emacs Rocks! episode. This one is, to use a phrase Sveen might utter, mind-blowing. It’s a demonstration of his Emacs extension multiple-cursors. When I first saw this extension demonstrated in … Continue reading

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An Elisp Puzzle

Xah Lee points to this interesting tweet The three S’s of SUCCESS by Gary Fredericks and asks for something similar in Elisp. Fredericks’ code is (map (vec “SUCCESS”) [0 5 6]) which certainly isn’t Elisp. My first attempt at Elisp … Continue reading

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Common Lisp Type Hierarchy

Greg Pfeil over at Techomatic has a nice chart of the Common Lisp Type Hierarchy. Technically, there’s no new information here, of course, but it is nice to have all the information in any easy to read diagram. If you’re … Continue reading

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