Python
Regular Expression Fundamentals
A pattern describes a shape of text. Character classes say what, quantifiers say how many, anchors say where, and groups say which part to keep.
Regular Expressions
Pattern syntax, character classes, quantifiers, groups and the re module in practice.
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Notes
Python
The re Module
Seven functions cover every regex job: search, match, fullmatch, findall, finditer, sub and split. Knowing which one to reach for is most of the skill...
Python
Text Processing with Regular Expressions
Cleaning, extracting, validating and transforming real text - the jobs regular expressions were made for, worked through end to end.