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What is the difference between LR, SLR, and LALR parsers?
... shift occurs: the semantic action for G is called, the stack is popped n (from Rn) times, the pair (S,G) is pushed onto the stack, the new state S' is set to GOTO(G), and the cycle repeats with the same token T. If the parser is an SLR parser, there is at most one reduction rule for the state and s...
How to include() all PHP files from a directory?
...
Here is the way I include lots of classes from several folders in PHP 5. This will only work if you have classes though.
/*Directories that contain classes*/
$classesDir = array (
ROOT_DIR.'classes/',
ROOT_DIR.'firephp/',
ROOT_DIR.'includes/'
);
function...
What version of javac built my jar?
...
You can't tell from the JAR file itself, necessarily.
Download a hex editor and open one of the class files inside the JAR and look at byte offsets 4 through 7. The version information is built in.
http://en.wikipedia.org/wiki/Java_class...
Executing a command stored in a variable from PowerShell
...med on my own system that 7z.exe gave the error you described, just typing from the command prompt, but with the full path to 7z.exe (for me, it was 'C:\Program Files\7-zip\7z.exe', I could execute 7z.exe.
– kbrimington
Aug 29 '10 at 0:04
...
How do you properly determine the current script directory in Python?
...re the function, it will change the result. Also calling the python script from another directory will alter the result, so it's not a good solution.
– sorin
Nov 22 '11 at 11:41
2
...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
... variables that work fine in Terminal, other applications that you run not from the Terminal will not see these variables. A workaround for this problem is to start the application directly from the Terminal, for IDEA the following command can be used:
open -a /Applications/IntelliJ\ IDEA\ 12.app/
...
Accessing attributes from an AngularJS directive
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See section Attributes from documentation on directives.
observing interpolated attributes: Use $observe to observe the value changes of attributes that contain interpolation (e.g. src="{{bar}}"). Not only is this very efficient but it's also t...
How to install psycopg2 with “pip” on Python?
...
Option 2
Install the prerequsisites for building the psycopg2 package from source:
Debian/Ubuntu
Python 3
sudo apt install libpq-dev python3-dev
You might need to install python3.8-dev or similar for e.g. Python 3.8.
Python 21
sudo apt install libpq-dev python-dev
If that's not enough,...
Using python map and other functional tools
...ot to pass bars through the different functions, but to access it directly from maptest:
foos = [1.0,2.0,3.0,4.0,5.0]
bars = [1,2,3]
def maptest(foo):
print foo, bars
map(maptest, foos)
With your original maptest function you could also use a lambda function in map:
map((lambda foo: maptes...
How to remove css property in jQuery
...nly thing that's worked for me is to use removeClass() to remove the class from the element altogether.
– clayRay
Aug 26 at 2:18
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