Cheatsheet for vim regex with \v specified.

vim-regexp-verymagic-cheatsheet.txt

Special matching strings
====
^       Start of line
$       End of line
.       Any character
~       Match last given substitute string
[...]   Match range
[^...]  Not range
<       Beginning of a word
>       End of a word
_.      Any single character OR EOL

Control strings
====
\       Escape next character
(...)   Capture group
|       Separate alternative

Replacement strings
====
&       Insert entire matched pattern (equivalent to \0)
\n      Insert capture group n

Quantifiers
====
*       0 or more quantifier
+       1 or more quantifier
=       0 or 1 quantifier
?       0 or 1 quantifier
{n,m}   n to m quantifier
{n}     n quantifier
{n,}    at least n quantifier
{,n}    up to n quantifier

Lookaround
====
@<=     positive lookbehind
@<!     negative lookbehind
@=      positive lookahead
@!      negative lookahead