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The Ruby %r{ } expression
...lmost any non-alphabetic character pair instead of '{}'.
These variants work just as well:
%r!/home/user!
%r'/home/user'
%r(/home/user)
Edit 2:
Note that the %r{}x variant ignores whitespace, making complex regexps more readable. Example from GitHub's Ruby style guide:
regexp = %r{
start ...
ProcessStartInfo hanging on “WaitForExit”? Why?
... for the process to exit before reading StandardOutput the process can block trying to write to it, so the process never ends.
If you read from StandardOutput using ReadToEnd then your process can block if the process never closes StandardOutput (for example if it never terminates, or if it is block...
How to delete a row by reference in data.table?
...lated to assignment by reference versus copying in data.table . I want to know if one can delete rows by reference, similar to
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System.currentTimeMillis vs System.nanoTime
What I would like to know is whether I should use System.currentTimeMillis() or System.nanoTime() when updating my object's positions in my game? Their change in movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
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How to avoid the need to specify the WSDL location in a CXF or JAX-WS generated webservice client?
...something similar to wsimport), via maven, my services starts with codes like this:
9 Answers
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Using PUT method in HTML form
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Danubian Sailor
21.1k3131 gold badges136136 silver badges207207 bronze badges
answered Nov 8 '11 at 17:04
dqhendricksdqhe...
Entity Framework - Invalid Column Name '*_ID"
... am missing some of the understanding here myself. This is Entity Framework 4.4
15 Answers
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Is there a regular expression to detect a valid regular expression?
... and practice are the same. In practice, they're not." Almost everyone who knows regular expressions knows that regular expressions does not support recursion. But PCRE and most other implementations support much more than basic regular expressions.
using this with shell script in the grep comma...
What are good uses for Python3's “Function Annotations”
...
I think this is actually great.
Coming from an academic background, I can tell you that annotations have proved themselves invaluable for enabling smart static analyzers for languages like Java. For instance, you could define sema...
How do I append one string to another in Python?
...yBytes_Concat(pv, w);
Py_XDECREF(w);
}
/* The following function breaks the notion that strings are immutable:
it changes the size of a string. We get away with this only if there
is only one module referencing the object. You can also think of it
as creating a new string object and...