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basic Tip #1316: Easy visual commenting - Navigating visual selections with '< and '>

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created:   August 24, 2006 19:44      complexity:   basic
author:   Max Cantor      as of Vim:   5.7

By using '< and '>, you can jump to the start and end, respectively, of the most recent visual selection.  This is a great and simple way to comment out a block of visually selected code:

vmap ,/ '><ESC>o*/<ESC>'<O/*<ESC>

This works because even after you <ESC> out of visual mode, '< and '> (presumably) remember where the most recent visual selection began and ended.  Actually, this doesn't always work.  Curly braces seem to confuse Vim when I do it that way, so here's an alternate way with marks (note: this will overwrite mark ')

vmap ,/ '<m''><ESC>o*/<ESC>''O/*<ESC>

Now, uncommenting is as easy as deleting the two lines that the /* */s are on.  Or you can use this: (note: this will produce unexpected results if your /* */s aren't on their own lines!)

vmap ,u ?\/*dd/*\/dd:nohl<CR>

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Additional Notes

Anonymous, August 25, 2006 1:07
Or you could use the nerd commenter http://www.vim.org/scripts/script.php?script_id=1218
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