(Change <tt> to <code>, perhaps also minor tweak.)
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Suppose you have a function requiring a count argument, and you would like to be able to invoke it with a mapping, and also allow the count to be prefixed to the mapping, like you can with for example <tt>{count}CTRL-^</tt> (to edit the <tt>[count]</tt>th file in the buffer list).
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Suppose you have a function requiring a count argument, and you would like to be able to invoke it with a mapping, and also allow the count to be prefixed to the mapping, like you can with for example <code>{count}CTRL-^</code> (to edit the <code>[count]</code>th file in the buffer list).
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Here is an example of code that can be used to call a <tt>Foo()</tt> function with such a prefix count argument. All it shows is the structure required for such a thing to work (well, it's the best the author of the tip was able to come up with). Given the following, typing <tt>42,a</tt> will echo <tt>FOO: 42</tt>:
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Here is an example of code that can be used to call a <code>Foo()</code> function with such a prefix count argument. All it shows is the structure required for such a thing to work (well, it's the best the author of the tip was able to come up with). Given the following, typing <code>42,a</code> will echo <code>FOO: 42</code>:
<pre>
<pre>
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==Comments==
==Comments==
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It's simpler if you use ":call", then you don't need to use "command". I have something like the following in my vimrc.
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It's simpler if you use ":call", then you don't need to use "command". I have something like the following in my vimrc.
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<pre>
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nmap ,a :<C-U>call Foo(v:count)
nmap ,a :<C-U>call Foo(v:count)
[...]
[...]
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execute "set columns +=" . a:amount
execute "set columns +=" . a:amount
endfunction
endfunction
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</pre>
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--Robert
Latest revision as of 05:47, July 13, 2012
Please review this tip:
This tip was imported from vim.org and needs general review.
created 2004 · complexity intermediate · author Luc St-Louis · version 5.7
Suppose you have a function requiring a count argument, and you would like to be able to invoke it with a mapping, and also allow the count to be prefixed to the mapping, like you can with for example {count}CTRL-^ (to edit the [count]th file in the buffer list).
Here is an example of code that can be used to call a Foo() function with such a prefix count argument. All it shows is the structure required for such a thing to work (well, it's the best the author of the tip was able to come up with). Given the following, typing 42,a will echo FOO: 42:
Edit