/**
 * Blank everything in a source file that is not code, keeping module specifiers
 * (change: add-phantom-reference-findings).
 *
 * The import scanners in this codebase are regex passes over text. That is fine for building a call
 * graph, where a stray match costs a spurious edge, but the phantom-reference check turns a match
 * into a finding an agent is told to act on — so an `import` written inside a test fixture's
 * template literal, a documentation snippet, or a Python docstring must not be read as an import at
 * all.
 *
 * `sanitizeForRegex` almost does this, but it blanks every string body, and a module specifier IS a
 * string body: `import x from './y'` would lose `./y`. This mask keeps exactly the string bodies
 * that sit in specifier position — directly after `from`, `import(`, or `require(` — and blanks the
 * rest. Every character offset and line break is preserved, so the scanners' reported positions
 * still refer to the original text.
 *
 * It is one pass with no regex over the content, and every lookahead is bounded by a constant, so a
 * hostile file cannot make it quadratic.
 *
 * Deliberately NOT a parser: it recognizes comments, strings, template literals, and regex
 * literals, which is what it takes to tell code from text. JSX is not parsed; the rule that a
 * single- or double-quoted string cannot span a line (which is true in both JavaScript and Python)
 * is what keeps an apostrophe in JSX prose from swallowing the rest of the file.
 */
/** Which comment and string syntax a file uses. */
export type MaskFlavor = 'js' | 'python';
/**
 * `content` with comment, string, template, and regex bodies replaced by spaces — except a string
 * body in module-specifier position, which is kept verbatim. Same length, same line breaks.
 */
export declare function maskNonCode(content: string, flavor: MaskFlavor): string;
/** The mask flavor for a language name, or null when the language is not masked. */
export declare function maskFlavorFor(language: string): MaskFlavor | null;
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