GFCI FTW! Ground-Fault Circuit In­ter­rupters For The Win. Last week, while trimming the hedge, I managed to partially sever the extension cord. The GFCI kicked in so quickly that I didn’t even realize that I had cut the cord before it stopped working.

As a child growing up in Ireland, I was quite accustomed to replacing electrical plugs. Many electrical devices are sold in Britain and Ireland with two-pin plugs. Unlike US two-pin plugs, the British two-pin plugs will not fit into a three-pin outlet unless you use an adapter. Many people would cut off the two-pin plug and wire up a three-pin plug instead.

I’ve never seen this done in the US—no doubt because …continue.

If you get "Too many au­then­ti­ca­tion failures for username" when using SSH, try using ssh -o 'I­den­ti­tiesOn­ly yes' instead. By default, ssh-agent will promis­cu­ous­ly offer many identities. Some hosts don’t like that.

I had forgotten all about the file command until it was mentioned in a Stack­Over­flow answer today. If you run file some.iso, it will display the label embedded in the disk image. More generally, you can run file on many different kinds of files and it will do a decent job of iden­ti­fy­ing the type of data.

Spy Line is the sequel to Spy Hook. Bernard Samson is on the run from MI6 in East Berlin after asking unwelcome questions about a slush fund. Eventually they settle their dif­fer­ences and MI6 sends him on a mission to Vienna, where he learns that his wife Fiona, widely believed to be a traitor who had defected to the KGB, was in fact a double agent. Samson is world-weary but shocked to learn that the truth of his wife’s supposed defection had been hidden from him by Fiona and by the handful …continue.

Railroad diagrams aka syntax diagrams have never really taken off. I’ve only come across two memorable uses of them, in a Pascal textbook that I used as a freshman and on JSON.org. The former was surely influenced by Niklaus Wirth’s Pascal User Manual, which also used them. For com­mu­ni­cat­ing with laypeople, the simple diagrams convey much more in­for­ma­tion than a textual grammar.

There are a few tools which can generate such diagrams from EBNF grammars, including the online Railroad Diagram Generator and the Railroad-diagram Generator library. Other tools can be found in the answers to the Stack­Over­flow question.

Adrian Kos­maczews­ki wrote a in­ter­est­ing post on Medium about Being A Developer After 40, and some of the things he’s learned since he started in 1997. My own career goes back to 1984, when I had a part-time job for five years writing graphics software that was used in many live and pre­re­cord­ed shows for RTÉ, the Irish national television station.

I agree with his main points on how to reach age 40 (or 50), willing to continue in the profession of software developer:

1. Forget The Hype
2. Choose Your Galaxy Wisely
3. Learn About Software History
4. Keep on Learning
5. Teach
6. Workplaces Suck
7. Know Your Worth
8. Send The Elevator Down
9. LLVM
10. Follow Your Gut
11. APIs Are King
12. Fight Complexity

#4, #5, and more recently #8 par­tic­u­lar­ly resonate with me.

I’ve spent my entire career learning new skills …continue.

In Kingsman: The Secret Service, “Eggsy” Unwin (Taron Egerton) is a fish-out-of-water recruit in Kingsman, an exclusive private in­tel­li­gence service. The young chav is taken under the wing of Harry Hart (Colin Firth), whose life was saved by Eggsy’s father seventeen years ago. After spending half the movie trying to survive Spy Hogwarts, Eggsy goes out on his first mission to stop the mega­lo­ma­ni­ac billionare (Samuel L. Jackson) who is about to cull most of the world’s population.

Stylish, hyper-stylized, and violent—as might be expected in a movie adapted from a comic book. The violence is …continue.

After the events of Valor of the Healer, the three pro­tag­o­nists went in different directions, but now they must come together again. Faanshi, the former slave girl, is coming into her own as an ex­tra­or­di­nar­i­ly powerful healer with her new people, the elves. Kestar, formerly a Hawk sworn to expunge elven magic, is a prisoner of the Hawks being taken to stand trial. Julian, his lost hand and burnt-out eye regrown by Faanshi’s magic, is seeking vengeance against the brother who maimed him. Rumors of Faanshi’s power and ac­com­plish­ments …continue.

I bought a new strimmer last weekend and used it agres­sive­ly today, revealing a once grass-covered pathway that I hadn’t seen in years and edging the parkway in front of my house very neatly. Naturally, I exhausted the line on the spool. I bought refill line and wound it onto the spool. It seems to work better than on my previous strimmer, which would jam or break every couple of minutes. I took more care than in the past and I very carefully and snugly wound the line, trying to minimize crossings or loose areas. I’ve seen a rec­om­men­da­tion to soak the line to make it more pliable. I’ll try …continue.

Good old Bertie Wooster’s got a spot of bother and so has his aged relative, Aunt Dahlia. A young lady authoress has grown tired of her tedious fiancé, one “Stilton” Cheesewright by name, and set her sights on our hero. Dash it all, she’d want to improve a chap’s mind, when he’d rather take a cigarette for a walk and enjoy Jeeves’ cocktails. And Cheesewright’s a hulking brute threat­en­ing to break B.W.’s spine in five places. But Jeeves comes through in the end, saving Bertie and Aunt D.

Jeeves …continue.