Difference between revisions of "Regex syntax"

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(update table)
(update table)
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| <tt>*</tt>
 
| <tt>*</tt>
 
| <tt>*</tt>
 
| <tt>*</tt>
 +
|+
 +
| zero or more (non-greedy)
 +
|
 +
|
 +
| <tt>\{-}</tt>
 +
| <tt>*?</tt>
 
|+
 
|+
 
| one or more
 
| one or more

Revision as of 13:39, 18 April 2020

This article is currently a stub; it means I'm aware it's short and I probably intend to expand on the subject in the future!

I can never remember which programs use which regex variants, so here's a quick recap sheet.

grep (GNU) sed (GNU) vim python
capture \( ... \) \( ... \) \( ... \) ( ... )
option \| \| \| |
word boundary \< or \> \< or \> \< or \> \b
zero or more * * * *
zero or more (non-greedy) \{-} *?
one or more \+ \+ \+ +