Regex syntax: Difference between revisions
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== References ==
* https://www.gnu.org/software/grep/manual/html_node/Regular-Expressions.html
* http://vimregex.com/
* https://docs.python.org/3/library/re.html
[[Category:Programming]]
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Revision as of 13:58, 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,} | +? |