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I once wrote a website (http://regexone.com http://regexone.com) to help people learn regular expressions using practical examples -- maybe you would like to gi

by kgen 14y ago

I once wrote a website (http://regexone.com http://regexone.com) to help people learn regular expressions using practical examples -- maybe you would like to give that a try and see if it helps you in understanding the different regexes a bit more?

heywire 14y ago
Thanks for the link, this looks very helpful!
UnoriginalGuy 14y ago
Holy shit, that is amazing. I'm currently working my way through it. I feel more confident already. Seriously thank you.
dancesdrunk 14y ago
Used your site a few months ago and have been recommending it to everyone since! Can I make a request for "best Solutions" & possibly more exercises? Its been the best resource I've found for getting the basics down, thanks!
Jam0864 14y ago
This is an amazing website, cheers!
zaptheimpaler 14y ago
I just went through all the examples, that was awesome! Best tutorial I've seen yet. With this and debuggex, I should be all set to parse HTML with regexes (kidding). By the way, could someone explain this to me - do regexes match a string if a part of a string matches the regex, or if the whole string does? For example, this regex "([+|-]* )(\d+[,|.]* )(\d+)(\.)?(e)?(\d+)" (intended to match decimal/scientific numbers - see http://regexone.com/example/0 http://regexone.com/example/0) matches "720p" on regexone, but fails to match on debuggex. So it seems like it varies depending on some configuration - is that right?
- archangel_one 14y ago
  That regex doesn't match 720p on regexone (and shouldn't - it has required spaces in it). You're getting a tick for the bottom item because it's not supposed to match that case. As for your question, it generally depends how they're called - eg. in Python's re module, whether you call search() or match(). You can force a regex to match the entire string by adding ^ and $.
deleted 14y ago
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sdepablos 14y ago
I was just taking a look to it as I'd like some of my non-technical staff to understand how regex works - they need it for Google Analytics filters - and it looks wonderful.
sdepablos 14y ago
Just two comments: * when having cases that should match and other that not, It would be ok to differentiate them * in some lessons it would be ok to force the full string to be matched. If not it's too easy to write i.e. file in http://regexone.com/lesson/8 http://regexone.com/lesson/8? and pass to the next one.

by kgen 14y ago

heywire 14y ago

Thanks for the link, this looks very helpful!

UnoriginalGuy 14y ago

Holy shit, that is amazing. I'm currently working my way through it. I feel more confident already. Seriously thank you.

dancesdrunk 14y ago

Used your site a few months ago and have been recommending it to everyone since! Can I make a request for "best Solutions" & possibly more exercises? Its been the best resource I've found for getting the basics down, thanks!

Jam0864 14y ago

This is an amazing website, cheers!

zaptheimpaler 14y ago

I just went through all the examples, that was awesome! Best tutorial I've seen yet. With this and debuggex, I should be all set to parse HTML with regexes (kidding). By the way, could someone explain this to me - do regexes match a string if a part of a string matches the regex, or if the whole string does? For example, this regex "([+|-]* )(\d+[,|.]* )(\d+)(\.)?(e)?(\d+)" (intended to match decimal/scientific numbers - see http://regexone.com/example/0 http://regexone.com/example/0) matches "720p" on regexone, but fails to match on debuggex. So it seems like it varies depending on some configuration - is that right?

archangel_one 14y ago
That regex doesn't match 720p on regexone (and shouldn't - it has required spaces in it). You're getting a tick for the bottom item because it's not supposed to match that case. As for your question, it generally depends how they're called - eg. in Python's re module, whether you call search() or match(). You can force a regex to match the entire string by adding ^ and $.

deleted 14y ago

[deleted]

sdepablos 14y ago

I was just taking a look to it as I'd like some of my non-technical staff to understand how regex works - they need it for Google Analytics filters - and it looks wonderful.

sdepablos 14y ago

Just two comments: * when having cases that should match and other that not, It would be ok to differentiate them * in some lessons it would be ok to force the full string to be matched. If not it's too easy to write i.e. file in http://regexone.com/lesson/8 http://regexone.com/lesson/8? and pass to the next one.