Non-Greedy Matching in Vim
In Vim, when using regular expressions, it's often useful to make matches non-greedy. This means the pattern will match as little text as possible rather than as much as possible.
Instead of using .* which is greedy and matches as much as possible, use .\{-} which is non-greedy and stops at the first opportunity.
Example:
%s/=".\{-}"/=""This replaces everything between quotes, but only up to the first closing quote, not the last one.
See :help non-greedy for more information.