:%s/\v(\w+)/\u\L\1/g
Vim's substitution engine supports case-modifier sequences in the replacement string, making it possible to convert text to title case in a single command.
search #search #substitution #regex #editing #case #formatting
:%s/\(prefix\)\@<=target/replacement/g
Vim's \@<= is a zero-width look-behind assertion.
\&
Vim's \& operator is the AND combinator in a search pattern.
\zs and \ze in a pattern
Vim's \zs ("match start") and \ze ("match end") atoms let you narrow the actual match region within a broader pattern context.
\%(...\)
Vim's standard grouping syntax \(.
/pattern\c
Vim's \c and \C atoms let you override the global ignorecase and smartcase settings on a per-search basis.
:%s/\v(\w+)/\u\1/g
Vim's substitute command supports case-modifier escapes in the replacement string: \u uppercases the next character, \U uppercases all text until \E or end of r
\@= and \@<=
Vim's regex engine supports zero-width lookahead and lookbehind assertions — \@= and \@<= — which let you match text based on surrounding context without in
:set regexpengine=1
Vim ships with two regex engines and lets you control which one is used.
\@<= and \@<!
Vim's \@<= and \@<! atoms let you write zero-width lookbehind assertions — they check what comes before the match position without consuming characters.
\@!
In Vim's regex engine, \@! is the negative lookahead assertion.
\%[abc]
The \%[.
:%s/\zsparseData\ze(/processData/g
Vim's \zs and \ze atoms let you include context in your search pattern without including that context in the replacement.
\V
Vim's default search mode gives special meaning to characters like .
\@>
Vim's \@> syntax creates an atomic group in a regular expression.
\@<=
The \@<= operator is Vim's zero-width look-behind assertion.
\%^ and \%$
Vim's ^ and $ anchors match the start and end of a line, but sometimes you need to match the very beginning or very end of the entire buffer.
/pattern1\&pattern2
Vim's \& operator lets you intersect two patterns so the match must satisfy both simultaneously.
\{-}
In Vim's regex engine, \{-} is the non-greedy (lazy) quantifier — it matches as few characters as possible, unlike .
:sort r /\w\+$/
The :sort r /{pattern}/ command sorts lines using the text that matches the pattern as the sort key.
