import { SearchFinder } from './features/searching';
/**
 * Switches the session to another file entry, like less's edit_ifile:
 * stores the position of the file being left, records the previous
 * position, and restores the target's saved position.
 */
export declare function switchToFile(target: number): boolean;
/**
 * Opens a file by name, inserting it into the file list after the
 * current entry when new, like less's edit().
 *
 * @returns True when the file displayed.
 */
export declare function openByName(name: string): boolean;
/**
 * Jumps to the current tag match, like command.c after nexttag:
 * edit the tag's file, then land its line on the -j target.
 */
export declare function gotoCurrentTag(): void;
/** Steps the tag list with t / T, like A_NEXT_TAG/A_PREV_TAG. */
export declare function tagStep(delta: 1 | -1): void;
/**
 * Repeats the search across the file list (ESC-n / ESC-N), like less's
 * A_T_AGAIN_SEARCH continuing into the next (or previous) files.
 */
export declare function spanningSearch(reverse: boolean, finder?: SearchFinder | null, sourceEnd?: (() => boolean) | null): void;
export declare function stepFile(delta: 1 | -1): void;
export declare function removeFile(): void;
/**
 * Opens the files named at the `Examine: ` prompt, like less's
 * edit_list: every name enters the list after the current file,
 * unopenable ones drop out, and the first good one becomes current.
 */
export declare function runExamine(): void;
/**
 * Runs a shell command with the terminal restored, like less's
 * lsystem: echoes the command (unless it starts with `-`), runs it
 * through $SHELL, then repaints and reports the done message.
 */
export declare function runShell(cmd: string, doneMsg: string | null, input?: string, onDone?: () => boolean): void;
export declare function runPipe(cmd: string): void;
/** Bytes of pipe data currently held, past recycles excluded. */
/**
 * Edits the current file with $VISUAL or $EDITOR at the middle
 * displayed line, then re-examines it, like less's LESSEDIT proto.
 */
export declare function runEditor(): void;
export declare function runMiscInput(kind: '!' | '#' | '|' | 's' | 'S' | '+', text: string): void;
export declare function applyFilter(): void;