export type Point = import('unist').Point;
export type Association = import('mdast').Association;
export type Nodes = import('mdast').Nodes;
export type Parents = import('mdast').Parents;
export type PhrasingContent = import('mdast').PhrasingContent;
export type TableCell = import('mdast').TableCell;
export type TableRow = import('mdast').TableRow;
export type ConstructName = import('../index.js').ConstructName;
export type FlowParents = Exclude<Parents, PhrasingContent | TableCell | TableRow>;
export type FlowChildren = import("mdast").Blockquote | import("mdast").Code | import("mdast").Heading | import("mdast").Html | import("mdast").List | import("mdast").Paragraph | import("mdast").Table | import("mdast").ThematicBreak | import("mdast").Definition | import("mdast").FootnoteDefinition | import("mdast").Yaml | import("mdast").ListItem | import("mdast").Break | import("mdast").Delete | import("mdast").Emphasis | import("mdast").FootnoteReference | import("mdast").Image | import("mdast").ImageReference | import("mdast").InlineCode | import("mdast").Link | import("mdast").LinkReference | import("mdast").Strong | import("mdast").Text | import("mdast").TableCell | import("mdast").TableRow;
export type PhrasingParents = import("mdast").Blockquote | import("mdast").Heading | import("mdast").List | import("mdast").Paragraph | import("mdast").Table | import("mdast").FootnoteDefinition | import("mdast").ListItem | import("mdast").Delete | import("mdast").Emphasis | import("mdast").Link | import("mdast").LinkReference | import("mdast").Strong | import("mdast").TableCell | import("mdast").TableRow | import("mdast").Root;
/**
 * Info on where we are in the document we are generating.
 */
export type TrackFields = {
    /**
     *   Current point.
     */
    now: Point;
    /**
     *   Number of columns each line will be shifted by wrapping nodes.
     */
    lineShift: number;
};
/**
 * Info on the characters that are around the current thing we are
 * generating.
 */
export type SafeFields = {
    /**
     *   Characters before this (guaranteed to be one, can be more).
     */
    before: string;
    /**
     *   Characters after this (guaranteed to be one, can be more).
     */
    after: string;
};
/**
 * Info on the surrounding of the node that is serialized.
 */
export type Info = TrackFields & SafeFields;
/**
 * Get current tracked info.
 */
export type TrackCurrent = () => TrackFields;
/**
 * Define a relative increased line shift (the typical indent for lines).
 */
export type TrackShift = (value: number) => undefined;
/**
 * Move past some generated markdown.
 */
export type TrackMove = (value: string | null | undefined) => string;
/**
 * Track positional info in the output.
 *
 * This info isn’t used yet but such functionality will allow line wrapping,
 * source maps, etc.
 */
export type Tracker = {
    /**
     *   Get the current tracked info.
     */
    current: TrackCurrent;
    /**
     *   Define an increased line shift (the typical indent for lines).
     */
    shift: TrackShift;
    /**
     *   Move past some generated markdown.
     */
    move: TrackMove;
};
/**
 * Track positional info in the output.
 *
 * This info isn’t used yet but such functionality will allow line wrapping,
 * source maps, etc.
 */
export type CreateTracker = (info: TrackFields) => Tracker;
/**
 * Compile an unsafe pattern to a regex.
 */
export type CompilePattern = (info: Unsafe) => RegExp;
/**
 * Get an identifier from an association to match it to others.
 *
 * Associations are nodes that match to something else through an ID:
 * <https://github.com/syntax-tree/mdast#association>.
 *
 * The `label` of an association is the string value: character escapes and
 * references work, and casing is intact.
 * The `identifier` is used to match one association to another:
 * controversially, character escapes and references don’t work in this
 * matching: `&copy;` does not match `©`, and `\+` does not match `+`.
 *
 * But casing is ignored (and whitespace) is trimmed and collapsed: ` A\nb`
 * matches `a b`.
 * So, we do prefer the label when figuring out how we’re going to serialize:
 * it has whitespace, casing, and we can ignore most useless character
 * escapes and all character references.
 */
export type AssociationId = (node: Association) => string;
/**
 * Map function to pad a single line.
 */
export type Map = (value: string, line: number, blank: boolean) => string;
/**
 * Pad serialized markdown.
 */
export type IndentLines = (value: string, map: Map) => string;
/**
 * Serialize the children of a parent that contains phrasing children.
 *
 * These children will be joined flush together.
 */
export type ContainerPhrasing = (parent: PhrasingParents, info: Info) => string;
/**
 * Serialize the children of a parent that contains flow children.
 *
 * These children will typically be joined by blank lines.
 * What they are joined by exactly is defined by `Join` functions.
 */
export type ContainerFlow = (parent: FlowParents, info: TrackFields) => string;
/**
 * Extra configuration for `safe`
 */
export type SafeEncodeFields = {
    /**
     * Extra characters that *must* be encoded (as character references) instead
     * of escaped (character escapes) (optional).
     *
     * Only ASCII punctuation will use character escapes, so you never need to
     * pass non-ASCII-punctuation here.
     */
    encode?: Array<string> | null | undefined;
};
export type SafeConfig = SafeFields & SafeEncodeFields;
/**
 * Make a string safe for embedding in markdown constructs.
 *
 * In markdown, almost all punctuation characters can, in certain cases,
 * result in something.
 * Whether they do is highly subjective to where they happen and in what
 * they happen.
 *
 * To solve this, `mdast-util-to-markdown` tracks:
 *
 * * Characters before and after something;
 * * What “constructs” we are in.
 *
 * This information is then used by this function to escape or encode
 * special characters.
 */
export type Safe = (input: string | null | undefined, config: SafeConfig) => string;
/**
 * Enter something.
 */
export type Enter = (name: ConstructName) => Exit;
/**
 * Exit something.
 */
export type Exit = () => undefined;
/**
 * Info passed around about the current state.
 */
export type State = {
    /**
     *  Stack of constructs we’re in.
     */
    stack: Array<ConstructName>;
    /**
     *  Positions of child nodes in their parents.
     */
    indexStack: Array<number>;
    /**
     *  Pad serialized markdown.
     */
    indentLines: IndentLines;
    /**
     *  Get an identifier from an association to match it to others.
     */
    associationId: AssociationId;
    /**
     *  Compile an unsafe pattern to a regex.
     */
    compilePattern: CompilePattern;
    /**
     *  Serialize the children of a parent that contains phrasing children.
     */
    containerPhrasing: ContainerPhrasing;
    /**
     *  Serialize the children of a parent that contains flow children.
     */
    containerFlow: ContainerFlow;
    /**
     *  Track positional info in the output.
     */
    createTracker: CreateTracker;
    /**
     *  Serialize the children of a parent that contains flow children.
     */
    safe: Safe;
    /**
     *  Enter a construct (returns a corresponding exit function).
     */
    enter: Enter;
    /**
     *  Applied user configuration.
     */
    options: Options;
    /**
     *  Applied unsafe patterns.
     */
    unsafe: Array<Unsafe>;
    /**
     *  Applied join handlers.
     */
    join: Array<Join>;
    /**
     *  Call the configured handler for the given node.
     */
    handle: Handle;
    /**
     *  Applied handlers.
     */
    handlers: Handlers;
    /**
     *  List marker currently in use.
     */
    bulletCurrent: string | undefined;
    /**
     *  List marker previously in use.
     */
    bulletLastUsed: string | undefined;
};
/**
 * Handle a particular node.
 */
export type Handle = (node: any, parent: Parents | undefined, state: State, Info: Info) => string;
/**
 * Handle particular nodes.
 *
 * Each key is a node type, each value its corresponding handler.
 */
export type Handlers = Record<Nodes['type'], Handle>;
/**
 * How to join two blocks.
 *
 * “Blocks” are typically joined by one blank line.
 * Sometimes it’s nicer to have them flush next to each other, yet other
 * times they cannot occur together at all.
 *
 * Join functions receive two adjacent siblings and their parent and what
 * they return defines how many blank lines to use between them.
 */
export type Join = (left: FlowChildren, right: FlowChildren, parent: FlowParents, state: State) => boolean | number | null | undefined | void;
/**
 * Schema that defines when a character cannot occur.
 */
export type Unsafe = {
    /**
     *  Single unsafe character.
     */
    character: string;
    /**
     * Constructs where this is bad (optional).
     */
    inConstruct?: Array<ConstructName> | ConstructName | null | undefined;
    /**
     * Constructs where this is fine again (optional).
     */
    notInConstruct?: Array<ConstructName> | ConstructName | null | undefined;
    /**
     * `character` is bad when this is before it (cannot be used together with
     * `atBreak`) (optional).
     */
    before?: string | null | undefined;
    /**
     * `character` is bad when this is after it (optional).
     */
    after?: string | null | undefined;
    /**
     * `character` is bad at a break (cannot be used together with `before`) (optional).
     */
    atBreak?: boolean | null | undefined;
    /**
     * The unsafe pattern (this whole object) compiled as a regex (do not use).
     *
     * This is internal and must not be defined.
     */
    _compiled?: RegExp | null | undefined;
};
/**
 * Configuration (optional).
 */
export type Options = {
    /**
     * Marker to use for bullets of items in unordered lists (default: `'*'`).
     *
     * There are three cases where the primary bullet cannot be used:
     *
     * * when three or more list items are on their own, the last one is empty,
     * and `bullet` is also a valid `rule`: `* - +`; this would turn into a
     * thematic break if serialized with three primary bullets; `bulletOther`
     * is used for the last item
     * * when a thematic break is the first child of a list item and `bullet` is
     * the same character as `rule`: `- ***`; this would turn into a single
     * thematic break if serialized with primary bullets; `bulletOther` is used
     * for the item
     * * when two unordered lists appear next to each other: `* a\n- b`;
     * `bulletOther` is used for such lists
     */
    bullet?: '*' | '+' | '-' | null | undefined;
    /**
     * Marker to use in certain cases where the primary bullet doesn’t work
     * (default: `'-'` when `bullet` is `'*'`, `'*'` otherwise).
     *
     * Cannot be equal to `bullet`.
     */
    bulletOther?: '*' | '+' | '-' | null | undefined;
    /**
     * Marker to use for bullets of items in ordered lists (default: `'.'`).
     *
     * There is one case where the primary bullet for ordered items cannot be
     * used:
     *
     * * when two ordered lists appear next to each other: `1. a\n2) b`; to
     * solve
     * that, `'.'` will be used when `bulletOrdered` is `')'`, and `'.'`
     * otherwise
     */
    bulletOrdered?: '.' | ')' | null | undefined;
    /**
     * Whether to add the same number of number signs (`#`) at the end of an ATX
     * heading as the opening sequence (default: `false`).
     */
    closeAtx?: boolean | null | undefined;
    /**
     * Marker to use for emphasis (default: `'*'`).
     */
    emphasis?: '*' | '_' | null | undefined;
    /**
     * Marker to use for fenced code (default: ``'`'``).
     */
    fence?: '`' | '~' | null | undefined;
    /**
     * Whether to use fenced code always (default: `true`).
     *
     * The default is to use fenced code if there is a language defined, if the
     * code is empty, or if it starts or ends in blank lines.
     */
    fences?: boolean | null | undefined;
    /**
     * Whether to increment the counter of ordered lists items (default: `true`).
     */
    incrementListMarker?: boolean | null | undefined;
    /**
     * How to indent the content of list items (default: `'one'`).
     *
     * Either with the size of the bullet plus one space (when `'one'`), a tab
     * stop (`'tab'`), or depending on the item and its parent list (`'mixed'`,
     * uses `'one'` if the item and list are tight and `'tab'` otherwise).
     */
    listItemIndent?: 'mixed' | 'one' | 'tab' | null | undefined;
    /**
     * Marker to use for titles (default: `'"'`).
     */
    quote?: '"' | "'" | null | undefined;
    /**
     * Whether to always use resource links (default: `false`).
     *
     * The default is to use autolinks (`<https://example.com>`) when possible
     * and resource links (`[text](url)`) otherwise.
     */
    resourceLink?: boolean | null | undefined;
    /**
     * Marker to use for thematic breaks (default: `'*'`).
     */
    rule?: '*' | '-' | '_' | null | undefined;
    /**
     * Number of markers to use for thematic breaks (default: `3`).
     */
    ruleRepetition?: number | null | undefined;
    /**
     * Whether to add spaces between markers in thematic breaks (default:
     * `false`).
     */
    ruleSpaces?: boolean | null | undefined;
    /**
     * Whether to use setext headings when possible (default: `false`).
     *
     * The default is to always use ATX headings (`# heading`) instead of setext
     * headings (`heading\n=======`).
     * Setext headings cannot be used for empty headings or headings with a rank
     * of three or more.
     */
    setext?: boolean | null | undefined;
    /**
     * Marker to use for strong (default: `'*'`).
     */
    strong?: '*' | '_' | null | undefined;
    /**
     * Whether to join definitions without a blank line (default: `false`).
     *
     * The default is to add blank lines between any flow (“block”) construct.
     * Turning this option on is a shortcut for a join function like so:
     *
     * ```js
     * function joinTightDefinitions(left, right) {
     * if (left.type === 'definition' && right.type === 'definition') {
     * return 0
     * }
     * }
     * ```
     */
    tightDefinitions?: boolean | null | undefined;
    /**
     * Handle particular nodes (optional).
     *
     * Each key is a node type, each value its corresponding handler.
     */
    handlers?: Partial<Handlers> | null | undefined;
    /**
     * How to join blocks (optional).
     */
    join?: Array<Join> | null | undefined;
    /**
     * Schemas that define when characters cannot occur (optional).
     */
    unsafe?: Array<Unsafe> | null | undefined;
    /**
     * List of extensions to include (optional).
     *
     * Each `ToMarkdownExtension` is an object with the same interface as
     * `Options` here.
     */
    extensions?: Array<Options> | null | undefined;
};