docs:vim:mapping_keys [hartungdesign.net wiki]

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====== mapping keys ======

===== points of interest =====
  * for help see ':help mapping' in vim
  * typical syntax:<code>
:mappingcommand [special arguments] {lhs} {rhs}

example:
" this sets F3 to toggle line wrapping
:map <F3> :set wrap!<CR>
</code>
  * [type]noremap is often used to redefine a command to avoid nested and recursive mappings
  * there are five sets of mappings:<code>
:map  (Normal, Visual+Select, Operator-Pending)
:nmap (Normal, when vim is waiting for any key to be a command)
:vmap (Visual, when a visual selection has begun)
:omap (Operator-pending mode, after "d", "y", "c", etc...)
:imap (Insert mode, when you are typing characters)
:cmap (Command-line mode, when entering a ":" or "/" command)
</code>
  * to remove a key mapping:<code>
unmap
nunmap
vunmap
ounmap
iunmap
cunmap
</code>
  * on the Mac, the command key is mapped as <D- >
  * to view a list of current mappings:<code>
:map
</code>
  * to view a list of current mappings and the last place each item was set from:<code>
:set verbose=1
:map
</code>
  * on the Mac the pasteboard (clipboard) is at register "*

===== troubleshooting =====
  * if you are using gvim in windows, and you lose your ability to cut/copy/paste with Control-X,C, and V, you probably had the carriage returns removed from your vimrc file
    * rename your .vimrc file temporarily
    * start up gvim and type :mkvimrc ~/.vimrc-default
    * compare the listings in this file with your vimrc file and fix as necessary