Dot Patterns

Search + change + dot. The two main refactor idioms.

Keys: *, cw, n, ., cgn

The two best refactor patterns in Vim both pair search with the dot command. *cw…<Esc>n. is the classic; cgn. is the smoother modern version that lets you skip without thinking.

Two idioms make Vim feel like a refactoring tool. Both compose search with the dot command. They look almost identical, but the second one is much more pleasant to use.

The classic: *cw…<Esc>n.

Cursor on foo. * jumps to the next foo and stashes it as the search pattern. cw changes the word. Type the replacement. Esc. Now n jumps to the next match; . repeats the change. n . n . … walks you through, with the option to skip with n alone.

The smoother: cgn.

Same setup, but use cgn instead of cw. The gn motion means "the next search match" — a motion that finds and selects the next hit of the current search pattern in one step (full treatment in Part 20, `recipes.cgn-dot`). So cgn = change the next match. After the first one, you can just press . repeatedly — each . jumps and changes. Skip an occurrence by pressing n once before ..

Reference

See also: Repeat Last Change, Word Search, {key:*}, {key:cw}, then {key:.} {key:.} {key:.} — The Replace Loop, {key:cgn} — Change-Next-Match Loop