How to create a LESS variable with a Plugin

[Ora9]

I want to create a simple LESS plugin that create variables on a function call

I want to do this because i want to have a less variable dynamic on runtime (link of unanswered question on why i want to do that)

In short

i want to do this :

without having to do :

And just declare each variable once like :

And var() is the custom LESS plugin function i wanna make

What i tried

I tried to learn how to create plugin on lesscss.org, github.com, and on diverse site, but it's either just not enough, or really obscure on how to create variables

I also saw this blog post where he creates variables, but i tried every thing, and nothing worked

Finally

I just want some advices or code, and ideally an explanation on how tf it works

Thanks :)

[gzb1128]

hello,i mean less support creating variables like this is it not enough or maybe i don't get your point ` @width: 10px; @height: @width + 10px;

#header { width: @width; height: @height; } `

[Ora9]

hello,i mean less support creating variables like this is it not enough or maybe i don't get your point ` @width: 10px; @height: @width + 10px;

#header { width: @width; height: @height; } `

Hi, thanks, but i want to create a variable programmatically with a js plugin, not directly in .less file

[iChenLei]

@Fukv I think less plugin's preProcessor is for you, you can parse less source file via postcss and postcss-less, and then modify the var function ast node, and leave the rest work to less.