import { ScreenRow } from '../lines/screenTable';
/**
 * Global configuration options for the pager display and behavior.
 */
export interface Config {
    windowContent: string[];
    startLine: number;
    row: number;
    subRow: number;
    /**
     * Characters PAST the sub-row boundary where the top row starts.
     *
     * less's screen top is a byte position, so a width change re-wraps
     * from the same byte and the top keeps showing the same words. Ours
     * is a boundary index, which cannot say "start mid-boundary" - this
     * carries the remainder. Measured against less (3000-char line, 79
     * columns, -N taking 8): the top stays put, a forward move keeps
     * the shifted grid, and a backward move re-anchors to the absolute
     * one - which is why this is an overlay and not a replacement.
     */
    subShift: number;
    /**
     * less's position table (position.c): one entry per screen row saying
     * where that row starts and ends. Empty means pos_clear - the next
     * paint regenerates it from the top alone.
     *
     * It persists across moves because the entries a backward step
     * prepends cannot be re-derived: back_line bounds the row it exposes
     * at the row that used to be on top, and the rows below keep the
     * extents they already had.
     */
    screen: ScreenRow[];
    blankTop: number;
    /** Rows at the BOTTOM the screen was cleared to and never redrawn -
     *  less's jump_loc lclear()ing and then back()ing fewer null lines
     *  than the screen holds. Blank, not tildes: nothing drew them. */
    blankBelow: number;
    endRow: number;
    endSubRow: number;
    col: number;
    setCol: number;
    setWindow: number;
    setHalfWindow: number;
    window: number;
    halfWindow: number;
    screenWidth: number;
    halfScreenWidth: number;
    chopLongLines: boolean;
    tabObjectIndent: string | number;
    bufferOffset: number;
    keyPrefix: string;
    attnRow: number;
}
/**
 * Represents the current state of the pager.
 */
export type Mode = 'INIT' | 'EOF' | 'BUFFERING' | 'HELP' | 'DUMB';
/**
 * Represents all possible key-based actions in the pager.
 *
 * These actions control navigation, search, file operations, and various pager
 * behaviors. They are typically triggered by specific key presses.
 */
export type Actions = 'ADD_BUFFER' | 'DEL_BUFFER' | 'COMMAND' | 'ESC' | 'TAG_COMMAND' | 'OPTION_TAG' | 'ADD_COMMAND' | 'SHELL_COMMAND' | 'PSHELL_COMMAND' | 'QUIT' | 'HELP' | 'EXIT' | 'FORCE_EXIT' | 'LINE_FORWARD' | 'LINE_BACKWARD' | 'WINDOW_FORWARD' | 'WINDOW_BACKWARD' | 'SET_WINDOW_FORWARD' | 'SET_WINDOW_BACKWARD' | 'NO_EOF_WINDOW_FORWARD' | 'SET_HALF_WINDOW_FORWARD' | 'SET_HALF_WINDOW_BACKWARD' | 'SET_HALF_SCREEN_RIGHT' | 'SET_HALF_SCREEN_LEFT' | 'LAST_COL' | 'FIRST_COL' | 'REPAINT' | 'DROP_INPUT_REPAINT' | 'SEARCH_FORWARD' | 'SEARCH_BACKWARD' | 'REPEAT_SEARCH' | 'REVERSE_SEARCH' | 'HIGHLIGHT_TOGGLE' | 'CLEAR_SEARCH' | 'PATTERN_ONLY' | 'FIRST_LINE' | 'LAST_LINE' | 'PERCENT_LINE' | 'CURLY_BRACKET_RIGHT' | 'ROUND_BRACKET_RIGHT' | 'SQUARE_BRACKET_RIGHT' | 'CURLY_BRACKET_LEFT' | 'ROUND_BRACKET_LEFT' | 'SQUARE_BRACKET_LEFT' | 'CUSTOM_BRACKET_RIGHT' | 'CUSTOM_BRACKET_LEFT' | 'FOLLOW' | 'FOLLOW_BELL' | 'FOLLOW_HILITE' | 'SET_MARK' | 'SET_MARK_BOTTOM' | 'GO_MARK' | 'CLEAR_MARK' | 'PIPE_COMMAND' | 'SAVE_FILE' | 'EDIT_FILE' | 'OPEN_FILE' | 'NEXT_FILE' | 'PREV_FILE' | 'INDEX_FILE' | 'REMOVE_FILE' | 'CURRENT_INFO'
/** less's A_X11MOUSE_IN / A_X116MOUSE_IN: the sequence that
 *  INTRODUCES a mouse report, in the X10/X11 three-byte form and
 *  the SGR (1006) form. lesskey names them "mouse" and "mouse6". */
 | 'MOUSE_X11_IN' | 'MOUSE_SGR_IN'
/** less's A_F_MOUSE / A_B_MOUSE / A_L_MOUSE / A_R_MOUSE: what a
 *  decoded wheel report RESOLVES to. The --emouse gate and the
 *  --rmouse flip both live in the decoder (decode.c:613), so these
 *  four move unconditionally - which is what a lesskey file binding
 *  their codes gets, with no mouse involved. */
 | 'MOUSE_FORWARD' | 'MOUSE_BACKWARD' | 'MOUSE_LEFT' | 'MOUSE_RIGHT' | 'NOACTION' | 'VERSION' | 'FORCE_LINE_FORWARD' | 'FORCE_LINE_BACKWARD' | 'FORCE_WINDOW_BACKWARD' | 'NEWLINE_FORWARD' | 'NEWLINE_BACKWARD' | 'GO_POS' | 'SPAN_REPEAT_SEARCH' | 'SPAN_REVERSE_SEARCH' | 'NEXT_TAG' | 'PREV_TAG' | 'OSC8_FORWARD' | 'OSC8_BACKWARD' | 'OSC8_JUMP' | 'OSC8_OPEN';