nix-super/src/libutil/hilite.hh

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#pragma once
#include <regex>
#include <vector>
#include <string>
namespace nix {
/* Highlight all the given matches in the given string `s` by wrapping
them between `prefix` and `postfix`.
If some matches overlap, then their union will be wrapped rather
than the individual matches. */
std::string hiliteMatches(
std::string_view s,
std::vector<std::smatch> matches,
std::string_view prefix,
std::string_view postfix);
}