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-rw-r--r--lib/nes/common/string-builder.hh124
1 files changed, 0 insertions, 124 deletions
diff --git a/lib/nes/common/string-builder.hh b/lib/nes/common/string-builder.hh
deleted file mode 100644
index 0298b8e..0000000
--- a/lib/nes/common/string-builder.hh
+++ /dev/null
@@ -1,124 +0,0 @@
-#pragma once
-
-#include "nes/common/types.hh"
-#include "nes/common/span.hh"
-#include "nes/common/status.hh"
-#include <string_view>
-
-namespace nes
-{
- enum class number_format
- {
- decimal,
- hexadecimal,
- octal,
- binary,
- };
-
- /// Builds a string into a fixed-length buffer.
- class string_builder
- {
- template<u32 Capacity>
- friend class string_buffer;
-
- span<char> buffer_;
- u32 length_{ 0 };
-
- enum class format_arg_type
- {
- string,
- character,
- signed_integer,
- unsigned_integer,
- boolean,
- };
-
- struct format_arg
- {
- format_arg_type type;
- union
- {
- std::string_view string;
- char character;
- i64 signed_integer;
- u64 unsigned_integer;
- bool boolean;
- };
-
- format_arg() = delete;
-
- explicit format_arg(char const* v) : type{ format_arg_type::string } { string = v; }
- explicit format_arg(std::string_view const v) : type{ format_arg_type::string } { string = v; }
- explicit format_arg(char const v) : type{ format_arg_type::character } { character = v; }
- explicit format_arg(unsigned char const v) : format_arg{ static_cast<char>(v) } {}
- explicit format_arg(long long const v) : type{ format_arg_type::signed_integer } { signed_integer = v; }
- explicit format_arg(unsigned long long const v) : type{ format_arg_type::unsigned_integer } { unsigned_integer = v; }
- explicit format_arg(short const v) : format_arg{ static_cast<signed long long>(v) } {}
- explicit format_arg(unsigned short const v) : format_arg{ static_cast<unsigned long long>(v) } {}
- explicit format_arg(int const v) : format_arg{ static_cast<signed long long>(v) } {}
- explicit format_arg(unsigned int const v) : format_arg{ static_cast<unsigned long long>(v) } {}
- explicit format_arg(long const v) : format_arg{ static_cast<signed long long>(v) } {}
- explicit format_arg(unsigned long const v) : format_arg{ static_cast<unsigned long long>(v) } {}
- explicit format_arg(bool const v) : type{ format_arg_type::boolean } { boolean = v; }
- };
-
- public:
- explicit string_builder(span<char>);
-
- /// Get the resulting string.
- auto get_result() const -> std::string_view { return std::string_view{ buffer_.get_data(), length_ }; }
-
- auto append_char(char) -> status;
- auto append_string(std::string_view) -> status;
- auto append_int(i64, number_format = number_format::decimal) -> status;
- auto append_int(u64, number_format = number_format::decimal) -> status;
- auto append_bool(bool) -> status;
-
- /// Print a templated string.
- ///
- /// Placeholders are signified by `{<params>}` where `params` contains optional formatting parameters:
- /// - for integers either "d" (the default), "x", "o", or "b"
- /// - for any other type, no parameters are supported.
- ///
- /// Curly braces can be escaped by repeating them twice like {{this}}.
- template<typename... Args>
- auto append_format(std::string_view const fmt, Args... args) -> status
- {
- constexpr u32 arg_count = sizeof...(Args);
- // Add another argument at the end so we don't have an empty array expression.
- const format_arg arg_wrappers[arg_count + 1] = { format_arg{ args }..., format_arg(0) };
-
- return append_format(fmt, arg_wrappers, arg_count);
- }
-
- private:
- auto append_format(std::string_view fmt, format_arg const* args, u32 arg_count) -> status;
- auto append_format_arg(format_arg, std::string_view params) -> status;
- };
-
- /// A string builder with a buffer embedded into it.
- template<u32 Capacity>
- class string_buffer : public string_builder
- {
- char buffer_[Capacity];
-
- public:
- explicit string_buffer()
- : string_builder{ buffer_ }
- {
- }
-
- string_buffer(string_buffer const& other)
- : string_builder{ buffer_ }
- {
- std::copy_n(other.buffer_, Capacity, buffer_);
- length_ = other.length_;
- }
-
- auto operator=(string_buffer const& other)
- {
- std::copy_n(other.buffer_, Capacity, buffer_);
- length_ = other.length_;
- }
- };
-} // namespace nes \ No newline at end of file