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Sometimes an array initialization in C extends over several lines, especially if the array is multidimensional. In Emacs the result of auto-indentation looks like this: int a[N][N] = {{0, 0, 6, 7, 0, 4, 0, 2, 0}, {0, 5, 0, 6, 0, 0, 0, 0, 1}, {2, 0, 0, 0, 0, 8, 0, 0, 4}, {4, 0, 9, 5, 0, 7, 0, 0, 3}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, {8, 0, 0, 2, 0, 1, 9, 0, 6}, {6, 0, 0, 1, 0, 0, 0, 0, 7}, {3, 0, 0, 0, 0, 5, 0, 6, 0}, {0, 2, 0, 3, 0, 6, 1, 0, 0}}; In Vim the auto-indentation feature enabled by :filetype indent on merely indents the lines by the constant shiftwidth which leads to the following: int a[N][N] = {{0, 0, 6, 7, 0, 4, 0, 2, 0}, {0, 5, 0, 6, 0, 0, 0, 0, 1}, {2, 0, 0, 0, 0, 8, 0, 0, 4}, {4, 0, 9, 5, 0, 7, 0, 0, 3}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, {8, 0, 0, 2, 0, 1, 9, 0, 6}, {6, 0, 0, 1, 0, 0, 0, 0, 7}, {3, 0, 0, 0, 0, 5, 0, 6, 0}, {0, 2, 0, 3, 0, 6, 1, 0, 0}}; Is there a way to make Vim behave like Emacs in this particular situation? UPDATE: Herbert Sitz's answer was indeed very helpful (thanks!). I have slightly modified his code to look like this: setlocal indentexpr=GetMyCIndent() function! GetMyCIndent() let theIndent = cindent(v:lnum) let m = matchstr(getline(v:lnum - 1), \ '^\s*\w\+\s\+\S\+.*=\s*{\ze[^;]*$') if !empty(m) let theIndent = len(m) endif return theIndent endfunction Saving this to the file ~/.vim/after/ftplugin/c.vim solves the problem, i.e. it makes Vim align the array declaration the same way Emacs does. What I have changed: Use matchstr() instead of matchlist() to make the code easier to understand ( len(m) in place of len

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