Wrong context matching

[quangnguyen30192]

Wrong context matching

[quangnguyen30192]

Thanks for reporting.

[smjonas]

We would need to change the keyword pattern for this. As I understood it, this is a Vim regex that the line needs to match in order to trigger completion of a completion item.

cmp-nvim-ultisnips/lua/cmp_nvim_ultisnips/source.lua

Lines 17 to 19 in 21f02b6

	function source:get_keyword_pattern()
	return "\\%([^[:alnum:][:blank:]]\\|\\w\\+\\)"
	end

However changing it to something like "\\.\\*" which should match any characters does not work for whatever reason (the snippet won't even show up then). PR / suggestions welcome.

[fecet]

Any workaround or solution?

[anstadnik]

Aha, I just understood that it might be wrong handling of the i parameter (in-word expansion), and not the context thing.

[smjonas]

I thought about this a but more and came to the conclusion that the keyword_pattern is not the issue. The problem is that cmp will not invoke completion when typing directly after an existing word.

Let's say that you have a snippet with mrm as the trigger. Also assume that this is the buffer content and | is the cursor position:

end|

Currently, nvim-cmp will only show words that contain all of the characters in end. This is why the mrm snippet will not be suggested.

So what nvim-cmp needs to support is the following:
After endm| was typed, besides the words e, en, end and endm cmp needs to also match ndm, dm and m. This way, if you have a snippet mdm, it will be suggested because it starts with m.

So I think you should open an issue on nvim-cmp and include this as usecase.