Re: substitue( optimize

Hello Nicholas,

> After reading a file and getting 1 million lines' List, I need to
> make similar substitutions over matched lines ~500 times with this
> func:
>
>
> fun! foo#set_new_val(ressource) abort "{{{
>
> " position
> let pos = foo#getpos_ress(a:ressource)
> let pres = foo#geth_presence(a:ressource)
> let s:xml[pos] = substitute(s:xml[pos],'false\|true',pres,"") <<<
> HERE
>
> " Slave/Voie01 to Voie08
> for idx in [1,2,3,4,5,6,7,8] <<< HERE
> let pos = foo#getpos_ress(a:ressource.'/bar0'.string(idx))
> let s:xml[pos] = substitute(s:xml[pos],'false\|true',pres,"") <<<
> HERE
> endfor
>
> endfu"}}}
>
>
> 1/ Can I optimize this function ?

So far my experiments on the subject taught me that we are best avoiding :for and :while constructs when performances matter.
If you can use map() instead, do!

HTH,

--
Luc Hermitte

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