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Simplify range formatter

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This commit is contained in:
Victor Zverovich 2024-03-09 08:20:27 -08:00
parent 13cfaa2ab0
commit 11f2f30f0b
1 changed files with 13 additions and 25 deletions
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38
include/fmt/ranges.h
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@ -388,7 +388,6 @@ struct range_formatter<
detail::string_literal<Char, '['>{};
basic_string_view<Char> closing_bracket_ =
detail::string_literal<Char, ']'>{};
bool is_string_format = false;
bool is_debug = false;
public:
@ -413,9 +412,7 @@ struct range_formatter<
auto it = ctx.begin();
auto end = ctx.end();
detail::maybe_set_debug_format(underlying_, true);
if (it == end) {
return underlying_.parse(ctx);
}
if (it == end) return underlying_.parse(ctx);
switch (detail::to_ascii(*it)) {
case 'n':
@ -426,21 +423,17 @@ struct range_formatter<
is_debug = true;
set_brackets({}, {});
++it;
if (it == end || *it != 's') {
report_error("invalid format specifier");
}
if (it == end || *it != 's') report_error("invalid format specifier");
FMT_FALLTHROUGH;
case 's':
if (!std::is_same<T, Char>::value) {
if (!std::is_same<T, Char>::value)
report_error("invalid format specifier");
}
if (!is_debug) {
set_brackets(detail::string_literal<Char, '"'>{},
detail::string_literal<Char, '"'>{});
set_separator({});
detail::maybe_set_debug_format(underlying_, false);
}
is_string_format = true;
++it;
return it;
}
@ -455,21 +448,19 @@ struct range_formatter<
return underlying_.parse(ctx);
}
template <typename Output, typename Iter, typename IterEnd, typename U = T,
template <typename Output, typename It, typename Sentinel, typename U = T,
FMT_ENABLE_IF(std::is_same<U, Char>::value)>
auto write_debug_string(Output& out, Iter& it, IterEnd& end) const -> Output {
auto write_debug_string(Output& out, It it, Sentinel end) const -> Output {
auto buf = basic_memory_buffer<Char>();
for (; it != end; ++it) {
buf.push_back(*it);
}
format_specs spec_str;
spec_str.type = presentation_type::debug;
for (; it != end; ++it) buf.push_back(*it);
auto specs = format_specs();
specs.type = presentation_type::debug;
return detail::write<Char>(
out, basic_string_view<Char>(buf.data(), buf.size()), spec_str);
out, basic_string_view<Char>(buf.data(), buf.size()), specs);
}
template <typename Output, typename Iter, typename IterEnd, typename U = T,
template <typename Output, typename It, typename Sentinel, typename U = T,
FMT_ENABLE_IF(!std::is_same<U, Char>::value)>
auto write_debug_string(Output& out, Iter&, IterEnd&) const -> Output {
auto write_debug_string(Output& out, It, Sentinel) const -> Output {
return out;
}
@ -479,17 +470,14 @@ struct range_formatter<
auto out = ctx.out();
auto it = detail::range_begin(range);
auto end = detail::range_end(range);
if (is_debug) {
return write_debug_string(out, it, end);
}
if (is_debug) return write_debug_string(out, it, end);
out = detail::copy<Char>(opening_bracket_, out);
int i = 0;
for (; it != end; ++it) {
if (i > 0) out = detail::copy<Char>(separator_, out);
ctx.advance_to(out);
auto&& item = *it;
out = underlying_.format(mapper.map(item), ctx);
out = underlying_.format(mapper.map(*it), ctx);
++i;
}
out = detail::copy<Char>(closing_bracket_, out);