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Best way to parse command-line parameters? [closed]
...le -> string), list.tail)
case option :: tail => println("Unknown option "+option)
exit(1)
}
}
val options = nextOption(Map(),arglist)
println(options)
}
}
will print, for example:
Map('infile -> test/data/paml-aln1.phy, 'maxsi...
Capturing Groups From a Grep RegEx
... use grep multiple times within a pipeline to first reduce your line to a known format, and then to extract just the bit you want. (Although tools like cut and sed are far better at this).
Suppose for the sake of argument that your pattern was a bit simpler: [0-9]+_([a-z]+)_ You could extract this ...
Why is i++ not atomic?
...
The first word of the question is "why". As of now, this is the only answer to address the issue of "why". The other answers really just re-state the question. So +1.
– Dawood ibn Kareem
Aug 7 '14 at 1:44
...
What does Ruby have that Python doesn't, and vice versa?
...or that claim language Y doesn't have X, although in fact it does. I also know exactly why I prefer Python, but that's also subjective, and wouldn't help anybody choosing, as they might not have the same tastes in development as I do.
...
How can I create a copy of an object in Python?
...
@AaronHall Thanks for letting me know! This certainly isn't the greatest answer I wrote, but I kind of agree with the decision that it should not be forcibly deleted. I'll brush it up a bit, but since there are already answers with all the details (notably yo...
How to send a JSON object over Request with Android?
...er writing a test program to send various strings to the server until you know what format it needs to be in.
int TIMEOUT_MILLISEC = 10000; // = 10 seconds
String postMessage="{}"; //HERE_YOUR_POST_STRING.
HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(htt...
Is there a difference between copy initialization and direct initialization?
...hy does it output that result?
Direct initialization
It first doesn't know anything about conversion. It will just try to call a constructor. In this case, the following constructor is available and is an exact match:
B(A const&)
There is no conversion, much less a user defined conversio...
Adding two Java 8 streams, or an extra element to a stream
... element)
.filter(x -> x!=2);
The code is now significantly shorter. However, I agree that the readability hasn't improved. So I have another solution.
In a lot of situations, Collectors can be used to extend the functionality of streams. With the two Collectors a...
How to print color in console using System.out.println?
...which should return the console to its defaults. It's useful if you don't know the default color or are also using some of the other attributes like background color, font styles, etc.
– WhiteFang34
Apr 23 '11 at 8:38
...
Threading in a PyQt application: Use Qt threads or Python threads?
...ode executed within the context of a QT thread still acquires the GIL, and now you have to manage two sets of logic for locking your code.
In the end, both QT threads and Python threads are wrappers around system threads. Python threads are marginally safer to use, since those parts that are not wr...