To regex gurus, why do the following expressions differ(PCRE)? /demo(?:/(.))?$ /demo(?:/)(.)?$ I can't

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To regex gurus, why do the following expressions differ(PCRE)? /demo(?:/(.))?$ /demo(?:/)(.)?$ I can't

make sense of what's happening

#english #programming

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27.09.2021

7 ответов

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🍋 Автор вопроса

A* Ulven
have you tried regexr.com ?

yes. The only difference with tests is where the nested one is able to match /demo That doesn't makes a lot of sense to me. Unless the nesting is equivalent to: /demo(?:/)?(.*)?$

0

27.09.2021

⟨ Simon | Schürrle ⟩

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yes. The only difference with tests is where the ...

pretty sure that's the case

0

27.09.2021

A* Ulven

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yes. The only difference with tests is where the ...

I mean regexr specifically gives you a breakdown of every character as an explanation

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27.09.2021

Akshit

A* Ulven
I mean regexr specifically gives you a breakdown o...

regex101 does too

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27.09.2021

A* Ulven

Akshit
regex101 does too

I know. I’m saying that regexr can help troubleshoot this

0

27.09.2021

🍋 Автор вопроса

A* Ulven
I know. I’m saying that regexr can help troublesho...

funny thing: it was of no help

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27.09.2021

A* Ulven · Accepted Answer

A* Ulven

have you tried regexr.com ?

0

27.09.2021

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