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ruby 1.9: invalid byte sequence in UTF-8
I'm writing a crawler in Ruby (1.9) that consumes lots of HTML from a lot of random sites.
When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors....
“unmappable character for encoding” warning in Java
I'm currently working on a Java project that is emitting the following warning when I compile:
12 Answers
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Is “double hashing” a password less secure than just hashing it once?
Is hashing a password twice before storage any more or less secure than just hashing it once?
16 Answers
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Run cron job only if it isn't already running
So I'm trying to set up a cron job as a sort of watchdog for a daemon that I've created. If the daemon errors out and fails, I want the cron job to periodically restart it... I'm not sure how possible this is, but I read through a couple of cron tutorials and couldn't find anything that would do wha...
How to include a Font Awesome icon in React's render()
Whenever I try to use a Font Awesome icon in React's render() , it isn't displayed on the resulting web page although it works in normal HTML.
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How to generate a create table script for an existing table in phpmyadmin?
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Use the following query in sql tab:
SHOW CREATE TABLE tablename
To view full query
There is this Hyperlink named +Options left above, There select Full Texts
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How do I update pip itself from inside my virtual environment?
I'm able to update pip-managed packages, but how do I update pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version.
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'
I installed MySQL on Mac OS X Mountain Lion with homebrew install mysql , but when I tried mysql -u root I got the following error:
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Deleting multiple elements from a list
Is it possible to delete multiple elements from a list at the same time? If I want to delete elements at index 0 and 2, and try something like del somelist[0] , followed by del somelist[2] , the second statement will actually delete somelist[3] .
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How can I find unused images and CSS styles in a website? [closed]
Is there a method (other than trial and error) I can use to find unused image files? How about CSS declarations for ID's and Classes that don't even exist in the site?
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