import { Extension } from '../types';
declare let ignoreTab: boolean;
/**
 * Sets whether editors should ignore tab or use it for indentation.
 * Users can always toggle this using Ctrl+M / Ctrl+Shift+M (Mac).
 */
declare const setIgnoreTab: (newState: boolean) => boolean;
/**
 * Extension that will add automatic indentation and closing of brackets, quotes, and
 * tags along with the following commands.
 *
 * ## Commands
 *
 * Here, `Mod` refers to `Cmd` on Mac and `Ctrl` otherwise.
 *
 * - `Alt` + `ArrowUp`: Move line up
 * - `Alt` + `ArrowDown`: Move line down
 * - `Ctrl` + `ArrowUp`: Scroll one line up (Windows/Linux only)
 * - `Ctrl` + `ArrowDown`: Scroll one line down (Windows/Linux only)
 * - `Shift` + `Alt` + `ArrowUp`: Copy line up
 * - `Shift` + `Alt` + `ArrowDown`: Copy line down
 * - `Mod` + `Enter`: Insert blank line
 * - `Mod` + `]`: Indent line
 * - `Mod` + `[`: Outdent line
 * - `Tab`: Indent line (Tab capture enabled)
 * - `Shift` + `Tab`: Outdent line (Tab capture enabled)
 * - `Shift` + `Mod` + `K`: Delete line
 * - `Mod` + `/`: Toggle comment
 * - `Shift` + `Alt` + `A`: Toggle block comment
 * - `Ctrl` + `M`: Toggle tab capturing (Windows/Linux)
 * - `Ctrl` + `Shift` + `M`: Toggle tab capturing (Mac)
 *
 * @param selfClosePairs Pairs of self-closing brackets and quotes.
 * Must be an array of strings with 2 characters each.
 * Defaults to `['""', "''", '``', '()', '[]', '{}']`.
 * @param selfCloseRegex Regex controlling whether or not a bracket/quote should
 * automatically close based on the character before and after the cursor.
 * Defaults to ``/([^$\w'"`]["'`]|.[[({])[.,:;\])}>\s]|.[[({]`/s``.
 */
declare const defaultCommands: (selfClosePairs?: string[], selfCloseRegex?: RegExp) => Extension;
export interface EditHistory {
    /** Clears the history stack. */
    clear(): void;
    /**
     * Sets the active entry relative to the current entry.
     *
     * @param offset The position you want to move to relative to the current entry.
     *
     * `EditHistory.go(-1)` would be equivalent to an undo while `EditHistory.go(1)` would
     * be equivalent to a redo.
     *
     * If there's no entry at the specified position, the call does nothing.
     */
    go(offset: number): void;
    /**
     * Returns whether or not there exists a history entry at the specified offset relative
     * to the current entry.
     *
     * This method can be used to determine whether a call to {@link EditHistory.go} with the
     * same offset will succeed or do nothing.
     */
    has(offset: number): boolean;
}
/**
 * History extension that overrides the undo/redo behavior of the browser.
 *
 * Without this extension, the browser's native undo/redo is used, which can be sufficient
 * in some cases.
 *
 * Once added to an editor, this extension can be accessed from `editor.extensions.history`.
 *
 * @param historyLimit The maximum size of the history stack. Defaults to 999.
 */
declare const editHistory: (historyLimit?: number) => Extension;
export { editHistory, defaultCommands, setIgnoreTab, ignoreTab };