Have you ever pasted text from Google Docs onto your blog (WordPress or otherwise) and had to fix wacky formatting? Here is how to quickly strip out all those extra HTML tags using regular expressions with Atom.io, a free text editor.
Links:
(?=foo) |
Lookahead | Asserts that what immediately follows the current position in the string is foo |
(?<=foo) |
Lookbehind | Asserts that what immediately precedes the current position in the string is foo |
(?!foo) |
Negative Lookahead | Asserts that what immediately follows the current position in the string is not foo |
(? |
Negative Lookbehind | Asserts that what immediately precedes the current position in the string is not foo |
Expression: Hell(?=o) - Lookahead
Hellish failsHello passesMelloHello passesThe basic example above isn’t very helpful. But it can be very useful for password rule validation or advanced find/replaces.
Need a web crawler but don’t want to write one?
Have an old site that you need to keep live but don’t want the results to show on Google searches? Here are a few things you need to do:
robots.txt or password protect your site to prevent search engines from indexing.This matches the links above:
([wS]*[mo7b/])$[1](1)
I’ve been on vacation and spend the last two days catching up and not doing a lot of learning, so I’ve been lazy in putting up TIL posts. That is over. (I did, however, push some updates to my Apple Photos Analysis project.) Here is a small collection of things I learned in the last week.
Say you forgot to add a file to your last commit or you made a typo in your commit message. You can amend it!
Make the necessary changes, then do this:
git commit --amend -m "Commit message here"If you’ve already pushed it to an external repository, you’ll need to force the push since the external repo will look like it is ahead. If branch protection is turned on, you’ll need to make a new commit. Make sure you aren’t overwriting anything important!
git push origin master --forceMatplotlib is a great plotting library for Python.
def autolabel(rects): # attach some text labels for rect in rects: height = rect.get_height() plt.text(rect.get_x() + rect.get_width()/2., 5+height, '%d' % int(height), ha='center', va='bottom') rect = plt.bar(xs, counted_hours, color=color) # To use: autolabel(rect)plt.savefig('directory/filename.png')def hour_finder(regex,lines): time_counter = 0 for l in lines: if re.match(regex, l): time_counter = time_counter + 1 return time_counter # To use hour_finder('^8:[0-9]{2,}:[0-9]{2,}sPM',time_csv)Splitting by a space ' ' and choose the item after the split ([1] because counting starts at 0)
list = [i.split(' ')[1] for i in time_csv]