export type MarkdownFenceChar = '`' | '~';
export interface MarkdownFenceState {
    readonly char: MarkdownFenceChar;
    readonly length: number;
}
export interface MarkdownVisibilityState {
    readonly fence: MarkdownFenceState | null;
    readonly commentDepth: number;
}
export type MarkdownScanState = 'normal' | 'fenced' | 'indented-code' | 'comment';
export interface MarkdownLineInspection {
    readonly scanState: MarkdownScanState;
    readonly visibleText: string;
    readonly nextState: MarkdownVisibilityState;
}
export declare const INITIAL_MARKDOWN_VISIBILITY_STATE: MarkdownVisibilityState;
export declare function isIndentedMarkdownCodeLine(line: string): boolean;
export declare function inspectMarkdownLine(state: MarkdownVisibilityState, line: string): MarkdownLineInspection;
export declare function collectMarkdownVisibleMatches(content: string, pattern: RegExp): RegExpMatchArray[];
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