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Heroku error: “Permission denied (public key)”
I keep getting this error. I am using Mac. I generated a key and added it to heroku using
6 Answers
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Configuring IntelliJ IDEA for unit testing with JUnit
...he code editor.
It will show you popup with suggestion to create a test.
Mac OS: ⌘ Cmd+Shift+T
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Why do you have to link the math library in C?
...ven have a floating point math library available!
Even on the first 68000 machines (Mac, Atari ST, Amiga), floating point coprocessors were often expensive add-ons.
To do all that floating point math, you needed a pretty sizable library. And the math was going to be slow. So you rarely used floats...
How do I make this file.sh executable via double click?
First off I'm using Mac.
5 Answers
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NSOperation vs Grand Central Dispatch
...ere I noticed overhead from using NSOperations, and I've seen this on both Mac and iOS.
Second, there's an elegance to block-based dispatch code that is hard to match when using NSOperations. It's so incredibly convenient to wrap a few lines of code in a block and dispatch it to be performed on a s...
How do I use vi keys in ipython under *nix?
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You can also interactively switch between Vi-mode and Emacs mode. According to the the readline docs to switch between them you are supposed to be able to use the M-C-j key combination but that only seems to allow me to switch to vi-mode - on my Mac (where ESC is used as the 'Met...
How to write to a file in Scala?
...ing, not to force everyone to specify it all the time. But if you're on a Mac and your files written by Java are gobbledygook because they aren't Mac OS Roman encoded, I'm not sure it's doing more good than harm. I think it's the platforms' fault that they haven't agreed on a charset. As an indiv...
Is it bad to have my virtualenv directory inside my git repository?
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If you, say pip install mysql-python, on a 64 bit machine, and then someone with a 32 bit machine tries to use it, it will not work. It uses a C module, like many Python modules do, to increase performance. I imagine Windows->Linux would also not work.
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Match whitespace but not newlines
... both \r and \n in the pattern correctly handles all of Unix (LF), classic Mac OS (CR), and DOS-ish (CR LF) newline conventions.
No need to take my word for it:
#! /usr/bin/env perl
use strict;
use warnings;
use 5.005; # for qr//
my $ws_not_crlf = qr/[^\S\r\n]/;
for (' ', '\f', '\t', '\r', ...
Match linebreaks - \n or \r\n?
... \r?
Long story short, Linux uses \n for a new-line, Windows \r\n and old Macs \r. So there are multiple ways to write a newline. Your second tool (RegExr) does for example match on the single \r.
1) [\r\n]+ as Ilya suggested will work, but will also match multiple consecutive new-lines. (\r\n|\r|...