What's different between Python and Javascript regular expressions?
Question:
Are Python and JavaScript regular expression syntax identical?
If not, then:
- What are the important differences between them
- Is there a python library that “implements” JavaScript regexps?
Answers:
There is a comparison table here:
Part 1
They are different; One difference is Python supports Unicode and Javascript doesn’t.
Part 2
Read Mastering Regular Expressions. It gives information on how to identify the back-end engines (DFA vs NFA vs Hybrid) that a regex flavour uses. It gives tons of information on the different regex flavours out there.
There is way too much information to convey on a single SO answer, so you’re better off having a solid piece of reference material on the subject.
Are Python and JavaScript regular expression syntax identical?
If not, then:
- What are the important differences between them
- Is there a python library that “implements” JavaScript regexps?
There is a comparison table here:
Part 1
They are different; One difference is Python supports Unicode and Javascript doesn’t.
Part 2
Read Mastering Regular Expressions. It gives information on how to identify the back-end engines (DFA vs NFA vs Hybrid) that a regex flavour uses. It gives tons of information on the different regex flavours out there.
There is way too much information to convey on a single SO answer, so you’re better off having a solid piece of reference material on the subject.