export declare enum HtmlState {
    /**
     * Normal HTML state. Regular content allowed here.
     */
    Normal = 0,
    /**
     * Within a tag declaration, e.g. `<foo ...`, but not yet within an attribute.
     */
    WithinTag = 2,
    /**
     * Sitting directly after a `=` within a tag not followed by a quote.
     */
    TagAttr = 3,
    /**
     * Within a comment started with `<!--`.
     */
    WithinComment = 9,
    /**
     * Within a `<script>` tag. Important as it must be closed by `</script>`.
     */
    WithinScriptTag = 10,
    /**
     * Within a `<style>` tag. Important as it must be closed by `</style>`.
     */
    WithinStyleTag = 11,
    /**
     * Within a `<textarea>` tag. Important as it must be closed by `</textarea>`.
     */
    WithinTextAreaTag = 12,
    /**
     * Within a tag started by `"`.
     */
    WithinTagAttrDoubleQuote = 17,
    /**
     * Within a tag started by `'`.
     */
    WithinTagAttrSingleQuote = 18
}
export declare function indexOfCloserWithinTagLike(state: HtmlState, check: string): number;
/**
 * Escapes the given raw string for its placement within HTML based on the given state.
 *
 * This may throw in two cases:
 *    - state is `HtmlState.Within...` and the text contains the closer (dangerous)
 *    - state is {@link HtmlState.WithinTag}, no valid/obvious interpolation (TODO: could allow valid attr names)
 */
export declare function escapeStringFor(state: HtmlState, s: string | number): string;
export declare function htmlStateMachine(): {
    consume(next: string): HtmlState;
};
export declare function preprocessHtmlTemplateTag(arr: TemplateStringsArray): readonly HtmlState[];