This tip shows how to replace a built-in command using :cabbrev to automatically replace the existing command when it is typed. For example, you may want to change the behavior of a built-in command like :e. Or, you may make a common typo, like using :w1 instead of :w!. For whatever reason, if you want to change the behavior of a built-in command, you can't just use :command to override it, because user-defined commands must begin with a capital letter. Suppose you have a user-defined :E command that you want to use to override the default :e command. You could do the following: help ].
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| - Replace a builtin command using cabbrev
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| - This tip shows how to replace a built-in command using :cabbrev to automatically replace the existing command when it is typed. For example, you may want to change the behavior of a built-in command like :e. Or, you may make a common typo, like using :w1 instead of :w!. For whatever reason, if you want to change the behavior of a built-in command, you can't just use :command to override it, because user-defined commands must begin with a capital letter. Suppose you have a user-defined :E command that you want to use to override the default :e command. You could do the following: help ].
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| - This tip shows how to replace a built-in command using :cabbrev to automatically replace the existing command when it is typed. For example, you may want to change the behavior of a built-in command like :e. Or, you may make a common typo, like using :w1 instead of :w!. For whatever reason, if you want to change the behavior of a built-in command, you can't just use :command to override it, because user-defined commands must begin with a capital letter. Suppose you have a user-defined :E command that you want to use to override the default :e command. You could do the following: :cabbrev e =(getcmdtype()==':' && getcmdpos()==1 ? 'E' : 'e') The (getcmdtype()==':' && getcmdpos()) makes sure the replacement happens only in the first column of the command line (i.e. not later in the line, where it is most likely NOT intended to be used as a command, and not on the search line, which is also affected by cabbrev). If you do this a lot, it would be useful to define a function to do it for you. Use this to quickly and easily define lowercase abbreviations for whatever command you want: function! CommandCabbr(abbreviation, expansion) execute 'cabbr ' . a:abbreviation . ' =getcmdpos() == 1 && getcmdtype() == ":" ? "' . a:expansion . '" : "' . a:abbreviation . '"' endfunction command! -nargs=+ CommandCabbr call CommandCabbr() " Use it on itself to define a simpler abbreviation for itself. CommandCabbr ccab CommandCabbr This not only creates the function, but also provides the (lowercase!) command :ccab to define such abbreviations "on the fly". Note that because of the use of <f-args></f-args>, you will need to escape ("\ "), or use <space></space>, to include literal spaces in your expansion. This is explained in [help ].
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