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refactor: parse_subentity_replacement_field moved to format.h

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Mateusz Pusz
2024-01-23 21:20:22 +01:00
parent 8fb800670c
commit b982c0654d
2 changed files with 35 additions and 35 deletions
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25
src/core/include/mp-units/bits/fmt.h
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@@ -252,31 +252,6 @@ template<typename Char, typename Handler>
return begin; return begin;
} }
template<typename Char, typename Handler>
[[nodiscard]] constexpr const Char* parse_subentity_replacement_field(const Char* begin, const Char* end,
Handler&& handler)
{
if (end - begin++ < 4)
return MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` too short")), end;
if (*begin++ != '%')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` should start with '%'"));
if (*begin == '}')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` should have an identifier"));
auto it = begin;
for (; it != end; ++it) {
if (*it == '{' || *it == '%')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("invalid `subentity-replacement-field` format"));
if (*it == '}' || *it == ':') break;
}
if (it == end) MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` too short"));
std::string_view id{begin, it};
if (*it == ':') ++it;
it = handler.on_replacement_field(id, it);
if (it == end || *it != '}')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` should end with '}'"));
return ++it;
}
template<typename Char> template<typename Char>
struct dynamic_spec_id_handler { struct dynamic_spec_id_handler {
MP_UNITS_STD_FMT::basic_format_parse_context<Char>& ctx; MP_UNITS_STD_FMT::basic_format_parse_context<Char>& ctx;

45
src/core/include/mp-units/format.h
View File

@@ -40,6 +40,41 @@ struct fill_align_width_format_specs {
fmt_arg_ref<Char> width_ref; fmt_arg_ref<Char> width_ref;
}; };
template<typename Char>
[[nodiscard]] constexpr const Char* at_most_one_of(const Char* begin, const Char* end, std::string_view modifiers)
{
auto it = find_first_of(begin, end, modifiers.begin(), modifiers.end());
if (it != end && find_first_of(it + 1, end, modifiers.begin(), modifiers.end()) != end)
throw MP_UNITS_STD_FMT::format_error("only one of '" + std::string(modifiers) +
"' unit modifiers may be used in the format spec");
return it;
}
template<typename Char, typename Handler>
[[nodiscard]] constexpr const Char* parse_subentity_replacement_field(const Char* begin, const Char* end,
Handler&& handler)
{
if (end - begin++ < 4)
return MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` too short")), end;
if (*begin++ != '%')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` should start with '%'"));
if (*begin == '}')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` should have an identifier"));
auto it = begin;
for (; it != end; ++it) {
if (*it == '{' || *it == '%')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("invalid `subentity-replacement-field` format"));
if (*it == '}' || *it == ':') break;
}
if (it == end) MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` too short"));
std::string_view id{begin, it};
if (*it == ':') ++it;
it = handler.on_replacement_field(id, it);
if (it == end || *it != '}')
MP_UNITS_THROW(MP_UNITS_STD_FMT::format_error("`subentity-replacement-field` should end with '}'"));
return ++it;
}
template<typename OutputIt, typename Char> template<typename OutputIt, typename Char>
OutputIt format_global_buffer(OutputIt out, const fill_align_width_format_specs<Char>& specs) OutputIt format_global_buffer(OutputIt out, const fill_align_width_format_specs<Char>& specs)
{ {
@@ -64,16 +99,6 @@ OutputIt format_global_buffer(OutputIt out, const fill_align_width_format_specs<
return MP_UNITS_STD_FMT::format_to(out, "}}"); return MP_UNITS_STD_FMT::format_to(out, "}}");
} }
template<typename Char>
[[nodiscard]] constexpr const Char* at_most_one_of(const Char* begin, const Char* end, std::string_view modifiers)
{
auto it = find_first_of(begin, end, modifiers.begin(), modifiers.end());
if (it != end && find_first_of(it + 1, end, modifiers.begin(), modifiers.end()) != end)
throw MP_UNITS_STD_FMT::format_error("only one of '" + std::string(modifiers) +
"' unit modifiers may be used in the format spec");
return it;
}
} // namespace mp_units::detail } // namespace mp_units::detail
// //