Recently faced a situation when I wanted to extracted parts of a html code. But then I realized, I have no control over the amount of information regex is giving me back.
Showing posts with label regular expressions. Show all posts
Showing posts with label regular expressions. Show all posts
11 September, 2018
29 August, 2018
Python: Saving regular expression results in variables directly
Python Regular expressions has a powerful tools under it's regular expressions module which lets you create variables and save your search results directly.
It is called named groups . When you search for something and you want to save it in a variable when found, this is what you should use.
It is called named groups . When you search for something and you want to save it in a variable when found, this is what you should use.
24 August, 2018
Regular Expressions: Look ahead and Look behind
Regular expressions are fun. There are two important concepts that are quite often sought for. Find something based on content that follows our search pattern . OR. Find something based on content that lies ahead. Let's see some examples to see what I mean.
LOOK AHEAD
LOOK AHEAD means , I want to see what lies ahead first, and then decide, to do something now.
Syntax of regex pattern: pattern1(?=pattern2)
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