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Is there any way to put malicious code into a regular expression?
...ological patterns that go exponential — or even super‐exponential! — and so appear to take forever to solve. These may only show up on particular input data, but one can generally create one wherein this doesn’t matter.
Which ones these are will depend somewhat on how smart the regex compil...
How to assign bean's property an Enum value in Spring config file?
I have a standalone enum type defined, something like this:
9 Answers
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Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
I've seen mixed versions of this in a lot of code. (This applies to C and C++, by the way.) People seem to declare pointers in one of two ways, and I have no idea which one is correct, of if it even matters.
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Converting XML to JSON using Python?
I've seen a fair share of ungainly XML->JSON code on the web, and having interacted with Stack's users for a bit, I'm convinced that this crowd can help more than the first few pages of Google results can.
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Passing a single item as IEnumerable
...ss in a list or an array, then an unscrupulous piece of code could cast it and change the contents, leading to odd behaviour in some situations. You could use a read-only collection, but that's likely to involve even more wrapping. I think your solution is as neat as it gets.
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Is there a common Java utility to break a list into batches?
...s [[a, b, c], [d, e]] -- an outer list containing two inner lists of three and two elements, all in the original order.
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Batch files: How to read a file?
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You can use the for command:
FOR /F "eol=; tokens=2,3* delims=, " %i in (myfile.txt) do @echo %i %j %k
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for /?
at the command prompt. Also, you can parse ini files!
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Using module 'subprocess' with timeout
Here's the Python code to run an arbitrary command returning its stdout data, or raise an exception on non-zero exit codes:
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Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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What is a segmentation fault?
What is a segmentation fault? Is it different in C and C++? How are segmentation faults and dangling pointers related?
14 A...