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How do I access named capturing groups in a .NET Regex?
...
You specify the named capture group string by passing it to the indexer of the Groups property of a resulting Match object.
Here is a small example:
using System;
using System.Text.RegularExpressions;
class Program
{
static vo...
Most efficient way to remove special characters from string
...StringBuilder sb = new StringBuilder();
foreach (char c in str) {
if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '.' || c == '_') {
sb.Append(c);
}
}
return sb.ToString();
}
One thing th...
how do I query sql for a latest record date for each user
... Careful with this approach: it can return more than one row per user if they have more than one record per date (max(date) would return a date that would join multiple records). To avoid this issue, it would be preferable to use @dotjoe's solution: stackoverflow.com/a/2411763/4406793.
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List vs tuple, when to use each? [duplicate]
.... Stick with immutable points and create new ones, they're cheap enough. If you are dealing with millions of points, use the Flyweight pattern and keep a cache of recently used points.
– John Cowan
Mar 31 '15 at 13:37
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Is it safe to parse a /proc/ file?
... on what property you want. But it's easy to end up with bugs in your code if you assume too much about the consistency of a file in /proc. For example, see this bug which came from assuming that /proc/mounts was a consistent snapshot.
For example:
/proc/uptime is totally atomic, as someone menti...
Find and copy files
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If your intent is to copy the found files into /home/shantanu/tosend, you have the order of the arguments to cp reversed:
find /home/shantanu/processed/ -name '*2011*.xml' -exec cp "{}" /home/shantanu/tosend \;
Please, note...
What is the difference between Step Into and Step Over in the Eclipse debugger?
I want to debug the whole flow of a Java program. What is the difference between F5 (step into) and F6 (step over) in eclipse?
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What's the best way to build a string of delimited items in Java?
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I am wondering - does this take into account if the String representation of an Object in the Collection contains the delimiter character itself?
– GreenieMeanie
Jul 8 '09 at 20:03
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Best Practice - NSError domains and codes for your own project/app
...eUserInfo];
The third part of the domain (@"myproject") is just used to differentiate the errors from this project ("My Project") from errors in another project ("My Other Project" => com.davedelong.myotherproject).
It's a simple way to ensure that I'm not going to conflict with anyone else's ...
java.lang.IllegalStateException: The specified child already has a parent
...override OnCreateView in your RouteSearchFragment class, do you have the
if(view != null) {
return view;
}
code segment?
If so, removing the return statement should solve your problem.
You can keep the code and return the view if you don't want to regenerate view data, and onDestroyView()...