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// Helper functions for working with wcstring.
#ifndef FISH_WCSTRINGUTIL_H
#define FISH_WCSTRINGUTIL_H
#include <string>
#include <utility>
#include "common.h"
/// Typedef that represents a range in a wcstring. The first element is the location, the second is
/// the count.
typedef std::pair<wcstring::size_type, wcstring::size_type> wcstring_range;
/// wcstring equivalent of wcstok(). Supports NUL. For convenience and wcstok() compatibility, the
/// first character of each token separator is replaced with NUL.
///
/// Returns a pair of (pos, count).
/// Returns (npos, npos) when it's done.
/// Returns (pos, npos) when the token is already known to be the final token.
///
/// Note that the final token may not necessarily return (pos, npos).
wcstring_range wcstring_tok(wcstring& str, const wcstring& needle,
wcstring_range last = wcstring_range(0, 0));
#endif
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