/**
 * Character-level HTML scanning helpers for the `data-czap` macro transform.
 *
 * Mirrors the offset-preserving blanking idiom from {@link blankCssCommentsAndStrings}
 * in `css-scan.ts`: comments and code-sample contents are blanked to spaces while
 * newlines and every character offset stay 1:1 with the original source.
 *
 * @module
 */
/**
 * Blank HTML comments and `<pre>` / `<code>` block contents while preserving
 * every newline and character offset (blanked characters become spaces).
 */
export declare function blankHtmlCommentsAndCodeBlocks(html: string): string;
/** 1-based line number of a character offset. */
export declare function lineOfOffset(source: string, offset: number): number;
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