import * as monaco from "monaco-editor/esm/vs/editor/editor.api";
import { Channels } from "@nteract/messaging";
/**
 * Completion item provider.
 */
declare class CompletionItemProvider implements monaco.languages.CompletionItemProvider {
    private channels;
    private regexWhitespace;
    /**
     * Set Channels of Jupyter kernel.
     */
    setChannels(channels: Channels | undefined): void;
    /**
     * Whether provider is connected to Jupyter kernel.
     */
    get isConnectedToKernel(): boolean;
    /**
     * Additional characters to trigger completion other than Ctrl+Space.
     * We do not need any additional characters to trigger completion as the Monaco editor
     * by default triggers completion as the user types non-whitespace characters.
     */
    get triggerCharacters(): never[];
    /**
     * Get list of completion items at position of cursor.
     */
    provideCompletionItems(model: monaco.editor.ITextModel, position: monaco.Position): Promise<monaco.languages.CompletionList>;
    /**
     * Get list of completion items from Jupyter kernel.
     */
    private codeCompleteObservable;
    /**
     * Converts Jupyter completion result to list of Monaco completion items.
     */
    private adaptToMonacoCompletions;
    /**
     * Get magic prefix from text.
     */
    private getMagicPrefix;
    /**
     * Whether all characters from cell start position up to current start position are whitespace.
     */
    private isWhitespaceFromCellStart;
    /**
     * Converts Jupyter completion item kind to Monaco completion item kind.
     */
    private adaptToMonacoCompletionItemKind;
    /**
     * Removes problematic prefixes based on the typed text.
     *
     * Instead of showing "some/path" we should only show "path". For paths with white space, the kernel returns
     * ""some/path with spaces"" which we want to change to ""path with spaces"".
     *
     * Additionally, typing "[]." should not suggest ".append" since this results in "[]..append".
     */
    private sanitizeText;
    /**
     * Remove magics all % characters as Monaco doesn't like them for the filtering text.
     * Without this, completion won't show magics match items.
     *
     * Also remove quotes from the filter of a path wrapped in quotes to make sure we have
     * a smooth auto-complete experience.
     */
    private getFilterText;
    /**
     * Get insertion text handling what to insert for the magics case depending on what
     * has already been typed. Also handles an edge case for file paths with "." in the name.
     */
    private getInsertText;
    /**
     * Maps numbers to strings, such that if a>b numerically, f(a)>f(b) lexicograhically.
     * 1 -> "za", 26 -> "zz", 27 -> "zza", 28 -> "zzb", 52 -> "zzz", 53 ->"zzza"
     * @param order Number to be converted to a sorting-string. order >= 0.
     * @returns A string representing the order.
     */
    private getSortText;
}
declare const completionProvider: CompletionItemProvider;
export { completionProvider };