Difference between revisions of "Regex syntax"

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(update table)
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| <tt>\+</tt>
 
| <tt>\+</tt>
 
| <tt>+</tt>
 
| <tt>+</tt>
 +
|+
 +
| one or more (non-greedy)
 +
|
 +
|
 +
| <tt>\{-1,}</tt>
 +
| <tt>+?</tt>
 
|}
 
|}
  
 
[[Category:Programming]]
 
[[Category:Programming]]

Revision as of 13:43, 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 \+ \+ \+ +
one or more (non-greedy) \{-1,} +?