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Add support for UTF-8 digit separators

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This commit is contained in:
Victor Zverovich
2022-09-03 10:35:57 -07:00
parent 768d79a839
commit 1b94271ff6
3 changed files with 23 additions and 16 deletions
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12
include/fmt/format-inl.h
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@@ -123,8 +123,7 @@ FMT_FUNC auto write_int(appender out, basic_format_arg<format_context> value,
// We cannot use the num_put<char> facet because it may produce output in
// a wrong encoding.
if (!std::has_facet<format_facet<std::locale>>(locale)) return {};
std::use_facet<format_facet<std::locale>>(locale).put(out, value, specs,
locale);
std::use_facet<format_facet<std::locale>>(locale).put(out, value, specs);
return true;
#endif
return false;
@@ -133,13 +132,13 @@ FMT_FUNC auto write_int(appender out, basic_format_arg<format_context> value,
struct localize_int {
appender out;
const format_specs& specs;
locale_ref loc;
std::string sep;
template <typename T, FMT_ENABLE_IF(detail::is_integer<T>::value)>
void operator()(T value) {
auto arg = make_write_int_arg(value, specs.sign);
write_int(out, static_cast<uint64_or_128_t<T>>(arg.abs_value), arg.prefix,
specs, digit_grouping<char>(loc));
specs, digit_grouping<char>("\3", sep));
}
template <typename T, FMT_ENABLE_IF(!detail::is_integer<T>::value)>
void operator()(T) {}
@@ -152,9 +151,8 @@ template <typename Locale> typename Locale::id format_facet<Locale>::id;
template <>
FMT_API FMT_FUNC void format_facet<std::locale>::do_put(
appender out, basic_format_arg<format_context> val,
const format_specs& specs, std::locale& loc) const {
visit_format_arg(detail::localize_int{out, specs, detail::locale_ref(loc)},
val);
const format_specs& specs) const {
visit_format_arg(detail::localize_int{out, specs, separator_}, val);
}
#endif