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lexers vs parsers
...d/matched parentheses (()()(()())), nested HTML/BBcode tags, nested blocks etc. It's because state automata to deal with it should have to have infinitely many states to handle infinitely many nesting levels.
Level 2: Context-free grammars
They can have nested, recursive, self-similar branches in t...
How do I use a file grep comparison inside a bash if/else statement?
... was not given, the exit status is 2.
if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then
echo exists
else
echo not found
fi
You may want to use a more specific regex, such as ^MYSQL_ROLE=master$, to avoid that string in comments, names that merely start with "master", etc.
This wor...
What to do with branch after merge
...
Fix/fix-<somedescription> or
Ftr/ftr-<somedescription> or
etc.
Using Tower as my git front end, it neatly organizes all the Ftr/, Fix/, Test/ etc. into folders.
Once I am done with a branch, I rename them to Done/...-<description>.
That way they are still there (which ca...
Logging in Scala
...ries have been some wrappers around a Java logging framework (slf4j, log4j etc), but as of March 2015, the surviving log libraries are all slf4j. These log libraries provide some sort of log object to which you can call info(...), debug(...), etc. I'm not a big fan of slf4j, but it now seems to be t...
Defining and using a variable in batch file
...ng in the value, and also protects against special characters like & | etc.
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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]
...ght 90 Degrees? I'm sure there are other games like going through a maze, etc.
I'd think you'd keep their attention if you can keep them moving. This will spark the interest. They'll figure out later that the job is sedentary. ;)
...
How to return multiple values? [duplicate]
...es, then you can use Java's built-in container classes like Map, List, Set etc. Check the java.util package's JavaDoc for more details.
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What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
...ion Context which is designed to work with the standard javax.servlet.ServletContext so it's able to communicate with the container.
public interface WebApplicationContext extends ApplicationContext {
ServletContext getServletContext();
}
Beans, instantiated in WebApplicationContext will al...
What is the attribute property=“og:title” inside meta tag?
...splayed when you share a link to your page to someone (over fb, messenger, etc), usually a short card-like content will be displayed with a title, image and a short content next to the image
– Mladen B.
Jan 16 at 14:20
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Relational Database Design Patterns? [closed]
...versally applicable data models (employees, accounts, shipping, purchases, etc), Volume 2 contains industry specific data models (accounting, healthcare, etc), Volume 3 provides data model patterns.
Finally, while this book is ostensibly about UML and Object Modelling, Peter Coad's Modeling in Colo...