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How to “inverse match” with regex?
...
. doesn't match \n by default (some languages [eg Perl] allow you to switch on that behaviour, but by default . matches everything BUT \n).
– Dan
Oct 2 '08 at 20:36
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Getting the current page
... always down, and round() rounds up if decimal part is >= 5, else down. By that being said, floor(a)=round(a-0.5). Let's do some simple algebra. floor((a-b/2)/b)+1 = floor(a/b-0.5)+1 = round(a/b-0.5-0.5)+1 = round(a/b-1)+1 = round(a/b). Look! It seems like floor((a-b/2)/b)+1 = round(a/b)! Mathem...
Get Output From the logging Module in IPython Notebook
...o logging.basicConfig:
Does basic configuration for the logging system by creating a
StreamHandler with a default Formatter and adding it to the root
logger. The functions debug(), info(), warning(), error() and
critical() will call basicConfig() automatically if no handlers are
defined ...
git diff renamed file
...ex ce01362..dd7e1c6 100644
--- a/a.txt
+++ b/a.txt
@@ -1 +1 @@
-hello
+goodbye
diff --git a/a.txt b/test/a.txt
similarity index 100%
copy from a.txt
copy to test/a.txt
Incidentally, if you restrict your diff to just one path (as you do in git diff HEAD^^ HEAD a.txt you aren't ever going to see the...
iterating over and removing from a map [duplicate]
...; <boolean expression>);
Oracle Docs: entrySet()
The set is backed by the map, so changes to the map are reflected in the set, and vice-versa
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Can I find events bound on an element with jQuery?
...ns of jQuery, you would use the $._data method to find any events attached by jQuery to the element in question. Note, this is an internal-use only method:
// Bind up a couple of event handlers
$("#foo").on({
click: function(){ alert("Hello") },
mouseout: function(){ alert("World") }
});
/...
Styling text input caret
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If you are using a webkit browser you can change the color of the caret by following the next CSS snippet. I'm not sure if It's possible to change the format with CSS.
input,
textarea {
font-size: 24px;
padding: 10px;
color: red;
text-shadow: 0px 0px 0px #000;
-webkit-tex...
image processing to improve tesseract OCR accuracy
...e noticed that text that is highly pixellated - for example that generated by fax machines - is especially difficult for tesseract to process - presumably all those jagged edges to the characters confound the shape-recognition algorithms.
...
Swift alert view with OK and Cancel: which button tapped?
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You can easily do this by using UIAlertController
let alertController = UIAlertController(
title: "Your title", message: "Your message", preferredStyle: .alert)
let defaultAction = UIAlertAction(
title: "Close Alert", style: .defaul...
Python Process Pool non-daemonic?
...mport multiprocessing
# We must import this explicitly, it is not imported by the top-level
# multiprocessing module.
import multiprocessing.pool
import time
from random import randint
class NoDaemonProcess(multiprocessing.Process):
# make 'daemon' attribute always return False
def _get_d...