lix/src/libutil/suggestions.hh

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#pragma once
#include "comparator.hh"
#include "types.hh"
#include <set>
namespace nix {
/**
* A potential suggestion for the cli interface.
*/
class Suggestion {
public:
int distance; // The smaller the better
std::string suggestion;
std::string pretty_print() const;
GENERATE_CMP(Suggestion, me->distance, me->suggestion)
};
class Suggestions {
public:
std::set<Suggestion> suggestions;
std::string pretty_print() const;
Suggestions trim(
int limit = 5,
int maxDistance = 2
) const;
static Suggestions bestMatches (
std::set<std::string> allMatches,
std::string query
);
Suggestions& operator+=(const Suggestions & other);
};
}