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Regular expression to match a line that doesn't contain a word
...unds:
^((?!hede).)*$
The regex above will match any string, or line without a line break, not containing the (sub)string 'hede'. As mentioned, this is not something regex is "good" at (or should do), but still, it is possible.
And if you need to match line break chars as well, use the DOT-ALL m...
Differences between Exception and Error
I'm trying to learn more about basic Java and the different types of Throwables, can someone let me know the differences between Exceptions and Errors?
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How do I use Assert to verify that an exception has been thrown?
...ne, no exception was thrown
} catch (GoodException) { }
As @Jonas points out, this DOES NOT work for catching a base Exception:
try {
somethingThatShouldThrowAnException();
Assert.Fail(); // raises AssertionException
} catch (Exception) {
// Catches the assertion exception, and the te...
How to convert a negative number to positive?
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In [6]: x = -2
In [7]: x
Out[7]: -2
In [8]: abs(x)
Out[8]: 2
Actually abs will return the absolute value of any number. Absolute value is always a non-negative number.
sha...
Update an outdated branch against master in a Git repo
I have a Git repository that has branch (local and remote) that has become outdated. I would like to bring this branch up to date with the master branch, but I don't know how to do this. There will also probably be many merge conflicts.
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Parse JSON in TSQL
...streak and want to write a JSON parser in SQL
Normally, folk ask for JSON output from the DB and there are examples on the internet. But into a DB?
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Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its mo
...WorkerRequest abstract class that can be used to host ASP.NET applications outside an Internet Information Services (IIS) application. You can employ SimpleWorkerRequest directly or extend it.
Also, if you look at the MSDN documentation for the System.Web.Hosting namespace (SimpleWorkerRequest is...
Python - List of unique dictionaries
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So make a temporary dict with the key being the id. This filters out the duplicates.
The values() of the dict will be the list
In Python2.7
>>> L=[
... {'id':1,'name':'john', 'age':34},
... {'id':1,'name':'john', 'age':34},
... {'id':2,'name':'hanna', 'age':30},
... ]
>>&g...
How to execute XPath one-liners from shell?
Is there a package out there, for Ubuntu and/or CentOS, that has a command-line tool that can execute an XPath one-liner like foo //element@attribute filename.xml or foo //element@attribute < filename.xml and return the results line by line?
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npm windows install globally results in npm ERR! extraneous
...d, til it comes to the global installing. (Ok, some errors I had to figure out, but now I have working npm).
7 Answers
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