I can\'t seem to make getCompletions function to trigger in my custom completer when using custom prefix extraction regex identifierRegexps
Basica
Modifying the language_tools.js file is not a good solution, you can adjust the regex pattern by calling the method getCompletionRegex:
language_tools.js
getCompletionRegex
editor.getCompletionRegex = () => /[a-zA-Z_0-9.\$\-\u00A2-\uFFFF]/;