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31 lines
629 B
C++
31 lines
629 B
C++
#pragma once
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#include <string_view>
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namespace nix::regex {
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// TODO use constexpr string building like
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// https://github.com/akrzemi1/static_string/blob/master/include/ak_toolkit/static_string.hpp
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static inline std::string either(std::string_view a, std::string_view b)
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{
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return std::string { a } + "|" + b;
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}
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static inline std::string group(std::string_view a)
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{
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return std::string { "(" } + a + ")";
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}
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static inline std::string many(std::string_view a)
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{
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return std::string { "(?:" } + a + ")*";
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}
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static inline std::string list(std::string_view a)
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{
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return std::string { a } + many(group("," + a));
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}
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}
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