Re: How to use <script> attribute in map command?

Hi,

On Friday, October 10, 2014 12:04:17 PM UTC+2, jiaxing_wang wrote:
> This wiki page:
>
> http://vim.wikia.com/wiki/Mapping_keys_in_Vim_-_Tutorial_(Part_3)
>
>
>
>
> says with the following maps in a script file:
>
>
> nnoremap \x /Topic
> nmap <script> ,f \x<CR>
>
>
> "In the second map command, ',f' is mapped to invoke \x which is replaced with '/Topic'.
>
> If the user or some other plugin has defined a mapping for '\x', then it is not used by ',f'."
>
>
>
> But I tried and find '\x' is not remapped to '/Topic' as the wiki says, so what does <script>
>
> really mean and how to use it?

Unfortunately the wiki example is wrong.

Here's a short script that uses a mapping with <script>.

function! s:SayHelloToUser() abort
echo printf("Hello %s!", $USER)
endfunction

nmap <script> <Plug>SayHello :<C-U>call <SID>SayHelloToUser()<CR>

The <Plug> mapping is the hook that a user can map to, eg by defining

nmap <Leader>h <Plug>SayHello

In the <Plug> mapping, <script> ensures that the right-hand side of the
mapping will never be affected by user-defined mappings.

For example, if <script> were missing and somebody had defined a
command-line mode mapping for the character sequence 'cal', then the
mapping will likely fail because 'cal' is mapped to whatever the user
mapped it to. <script> protects from such disruptions.

Best,


--
David

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