Some completion trigger characters supported by LSP servers are not used

Problem Description

Right now, some of the completion/signature trigger characters are not being used by Spyder to invoke textDocument/completion and textDocument/signature requests to the LSP servers.

For instance, in signature completion on Python, “,” should be used to trigger a signature event and highlight the next argument in a function.

"signatureHelpProvider": {
     "triggerCharacters": ["(", ",", "="]
}

On other languages, such as Elixir, trigger characters that are different from “.” are just simply ignored.

"completionProvider": {
     "triggerCharacters": [".", "@"]
}

[goanpeca]

@andfoy I could not reproduce this

See:

• https://github.com/spyder-ide/spyder/blob/master/spyder/plugins/editor/widgets/codeeditor.py#L884
• https://github.com/spyder-ide/spyder/blob/master/spyder/plugins/editor/widgets/codeeditor.py#L3257

[andfoy]

This is something we need to improve in CodeEditor, right?

That is correct!