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Regular expression to match URLs in Java
...lphas as well as a proper string beginning placeholder.
String regex = "^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";
This works too:
String regex = "\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";
Note:
String regex = ...
how to draw smooth curve through N points using javascript HTML5 canvas?
... to go through all the sample points, but it is much more complicated (see http://www.cartogrammar.com/blog/actionscript-curves-update/)
Here is the the drawing code for the approximation method:
// move to the first point
ctx.moveTo(points[0].x, points[0].y);
for (i = 1; i < points.len...
How can I perform a str_replace in JavaScript, replacing text in JavaScript?
... _ using regex. If you need to use regex, then i recommend testing it with https://regex101.com/
city_name.replace(/ /gi,'_'); // Returns: Some_text_with_spaces
Replaces all spaces with _ without regex. Functional way.
city_name.split(' ').join('_'); // Returns: Some_text_with_spaces
...
Deadly CORS when http://localhost is the origin
...me Extension to go around this issue. The extension will add the necessary HTTP Headers for CORS:
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: "GET, PUT, POST, DELETE, HEAD, OPTIONS"
Access-Control-Expose-Headers: <you can add values here>
The source code is published on Git...
How to install Boost on Ubuntu
...ee to change or manually download yourself:
wget -O boost_1_55_0.tar.gz https://sourceforge.net/projects/boost/files/boost/1.55.0/boost_1_55_0.tar.gz/download
tar xzvf boost_1_55_0.tar.gz
cd boost_1_55_0/
Get the required libraries, main ones are icu for boost::regex support:
sudo apt-get upda...
urlencode vs rawurlencode?
...urlencode follows RFC 1738 prior to PHP 5.3.0 and RFC 3986 afterwards (see http://us2.php.net/manual/en/function.rawurlencode.php)
Returns a string in which all non-alphanumeric characters except -_.~ have been replaced with a percent (%) sign followed by two hex digits. This is the encoding des...
How to link to apps on the app store
...pany name specified.
To send customers to a specific
application:
http://itunes.com/apps/appname
To send
customers to a list of apps you have
on the App Store:
http://itunes.com/apps/developername
To send customers to a specific app
with your company name included in the
...
Python debugging tips [closed]
...
http://pypi.python.org/pypi/pudb, a full-screen, console-based Python debugger.
Its goal is to provide all the niceties of modern GUI-based debuggers in a more lightweight and keyboard-friendly package. PuDB allows you to...
How can I add reflection to a C++ application?
...
And I would love a pony, but ponies aren't free. :-p
http://en.wikibooks.org/wiki/C%2B%2B_Programming/RTTI is what you're going to get. Reflection like you're thinking about -- fully descriptive metadata available at runtime -- just doesn't exist for C++ by default.
...
How to set custom favicon in Express?
...tatic('/img/favicon.ico'));? Edit: I tried this in local environment, and http://localhost:3000/favicon.ico returns Cannot GET /favicon.ico.
– user1063287
Sep 20 at 3:23
...