very cool vimscript

1 files changed, 28 insertions, 0 deletions

diff --git a/entries/joeyshi12/vimscript/fib.vim b/entries/joeyshi12/vimscript/fib.vim
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+" Add me to your .vimrc :]
+
+function! Fib(n)
+    if a:n == 0
+        return "0"
+    elseif a:n == 1
+        return "0,1"
+    endif
+    let sequence = "0,1"
+    let prev = 0
+    let curr = 1
+    let iter = 2
+    while iter <= a:n
+        let curr = prev + curr
+        let prev = curr - prev
+        let sequence .= "," . curr
+        let iter += 1
+    endwhile
+    return sequence
+endfunction
+
+function! AppendFib(n)
+    execute "normal! i" . Fib(a:n) . "\<Esc>"
+endfunction
+
+" Map AppendFib to \fib
+:command! -nargs=1 AppendFib :call AppendFib(<q-args>)
+nnoremap <Leader>fib :AppendFib<Space>