How to set ansi colors to font in fzf header?

[linrongbin16]

I have try to change the font color in fzf's header.

Here's an example: https://github.com/linrongbin16/fzfx.vim/blob/fa1723e8185e3c2e3d45b6937383ef283c0d3297/autoload/fzfx/vim.vim#L88

But the ansi color code is not working, it just prints:

:: Press [0;31mCTRL-G[0m to fuzzy search

How should I fix it?

[junegunn]

No escape char? \x1b

[junegunn]

Try using double quotes

[linrongbin16]

btw, would you please tell me, how does fzf.vim add colors in header?
I found here: https://github.com/junegunn/fzf.vim/blob/1dcdb21db618055134cd611f4f5918f6d00a5df0/autoload/fzf/vim.vim#L585

It looks that s:magenta('CTRL-E', 'Special') will render text to vim highlight group Special.
But I didn't find the implementation of this function?

[linrongbin16]

Oh, double quotes solve the issue!
This commit works: linrongbin16/fzfx.vim@f78938b

[linrongbin16]

To be more compatible with fzf.vim, I also try to implement vim's Special highlight group foreground color, in this commit: https://github.com/linrongbin16/fzfx.vim/pull/23/files#diff-9c5a8207e71a7ffc01c8838723ec25fffe5584eef526e8e5851e84f6d3250c3dR74

But the result seems failed:

The special and clear color code seems good, but it just prints wrong.
Would you please help me?

[linrongbin16]

Oh, there's a bug in string concat, fixed in this commit: linrongbin16/fzfx.vim@57d3e39, and it worked! Great!