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How to escape % in String.Format?
...Buffer();
while (m1.find())
m1.appendReplacement(buf, log.substring(m1.start(), m1.start(2)) + "%%" + log.substring(m1.end(2), m1.end()));
// Return the sanitised message
String escapedString = m1.appendTail(buf).toString();
This works with any number of formatting characters, so it will repl...
How do I integrate Ajax with Django applications?
...the SO spirit, I love this question, because I had the same trouble when I started, so I'll give you a quick guide. Obviously you don't understand the principles behind them (don't take it as an offense, but if you did you wouldn't be asking).
Django is server-side. It means, say a client goes to ...
What is the most elegant way to remove a path from the $PATH variable in Bash?
...es no different to the other cases? If the path already had colons at the start and end, we could simply search for our desired string wrapped with colons. As it is, we can easily add those colons and remove them afterwards.
# PATH => /bin:/opt/a dir/bin:/sbin
WORK=:$PATH:
# WORK => :/bin:/...
Where can I set environment variables that crontab will use?
...n using an older coding standard - nowadays, I'd use a shebang '#!' at the start.)
The '~/.cronfile' is a variation on my profile for use by cron - rigorously non-interactive and no echoing for the sake of being noisy. You could arrange to execute the .profile and so on instead. (The REAL_HOME st...
Move the mouse pointer to a specific position?
...e between forced downloading into a sandbox and then userspace downloading started by user interaction. The security implications are actually very big.
– Martin Jespersen
Apr 12 '12 at 18:50
...
Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
...idea, but now i get this crazy error that is too long to post here, but it starts with warning: untitled.pyx:8:49: Buffer unpacking not optimized away.
– Noob Saibot
Feb 2 '13 at 2:32
...
How do I determine k when using k-means clustering?
...ters" by Dan Pelleg and Andrew Moore in ICML 2000.
Another approach is to start with a large value for k and keep removing centroids (reducing k) until it no longer reduces the description length. See "MDL principle for robust vector quantisation" by Horst Bischof, Ales Leonardis, and Alexander Se...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
... this error. The attribute
android:taskAffinity="string"
Should always start with a dot, like:
android:taskAffinity=".string"
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Move entire line up and down in Vim
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If you keep pressing this combination at the start or end of a file, it will start deleting those lines.
– Muhammad bin Yusrat
Aug 10 at 9:49
add...
When should I use Struct vs. OpenStruct?
...s
Creating 1 Mio OpenStructs is ~100x slower than creating 1 Mio Hashes.
start = Time.now
collection = (1..10**6).collect do |i|
{:name => "User" , :age => 21}
end; 1
stop = Time.now
puts "#{stop - start} seconds elapsed"
...