diff options
author | Spartan322 <Megacake1234@gmail.com> | 2024-05-09 16:06:02 +0200 |
---|---|---|
committer | Spartan322 <Megacake1234@gmail.com> | 2024-06-18 01:31:12 +0200 |
commit | b0c3ba3f91926b0c95625bdbf4aab69269130b13 (patch) | |
tree | f15ebc47d6bf370031af28e4bb4814ae30ef46e1 /src/openvic-dataloader/detail/DetectUtf8.hpp | |
parent | 7b521d6023113372cf6b02e562828273c4040f0e (diff) |
Add runtime encoding detection and conversionfix/char-detection
Win-1251/1252 detection is a reduced C++ version of https://github.com/hsivonen/chardetng
Add manually-specified encoding fallback
Add default system encoding fallback
Add error recovery to v2script
Add unknown encoding detection warning
Remove csv::Parser templating
Fix lua files dropping data
Update lexy to foonathan/lexy@1e5d99fa3826b1c3c8628d3a11117fb4fb4cc0d0
Remove exclusive reliance on lexy::default_encoding for v2script
Move internal concepts to src/openvic-detail/InternalConcepts.hpp
Move contents of DetectUtf8.hpp to src/detail/Detect.hpp
Move openvic-dataloader/AbstractSyntaxTree.hpp to src
Move DiagnosticLogger.hpp to src
Move File.hpp to src
Move openvic-dataloader/detail/utlity files to openvic-dataloader/detail
Add ovdl::utility::type_concat
Add ovdl::utility::type_prepend
Add ovdl::utility::is_instance_of
Overhaul parse error messages
Diffstat (limited to 'src/openvic-dataloader/detail/DetectUtf8.hpp')
-rw-r--r-- | src/openvic-dataloader/detail/DetectUtf8.hpp | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/src/openvic-dataloader/detail/DetectUtf8.hpp b/src/openvic-dataloader/detail/DetectUtf8.hpp deleted file mode 100644 index e9d0350..0000000 --- a/src/openvic-dataloader/detail/DetectUtf8.hpp +++ /dev/null @@ -1,53 +0,0 @@ -#pragma once - -#include <lexy/action/match.hpp> -#include <lexy/dsl.hpp> - -#include "detail/dsl.hpp" - -namespace ovdl::detail { - namespace detect_utf8 { - - template<bool INCLUDE_ASCII> - struct DetectUtf8 { - struct not_utf8 { - static constexpr auto name = "not utf8"; - }; - - static constexpr auto rule = [] { - constexpr auto is_not_ascii_flag = lexy::dsl::context_flag<DetectUtf8>; - - // & 0b10000000 == 0b00000000 - constexpr auto ascii_values = dsl::make_range<0b00000000, 0b01111111>(); - // & 0b11100000 == 0b11000000 - constexpr auto two_byte = dsl::make_range<0b11000000, 0b11011111>(); - // & 0b11110000 == 0b11100000 - constexpr auto three_byte = dsl::make_range<0b11100000, 0b11101111>(); - // & 0b11111000 == 0b11110000 - constexpr auto four_byte = dsl::make_range<0b11110000, 0b11110111>(); - // & 0b11000000 == 0b10000000 - constexpr auto check_bytes = dsl::make_range<0b10000000, 0b10111111>(); - - constexpr auto utf8_check = - ((four_byte >> lexy::dsl::times<3>(check_bytes)) | - (three_byte >> lexy::dsl::times<2>(check_bytes)) | - (two_byte >> lexy::dsl::times<1>(check_bytes))) >> - is_not_ascii_flag.set(); - - return is_not_ascii_flag.template create<INCLUDE_ASCII>() + - lexy::dsl::while_(utf8_check | ascii_values) + - lexy::dsl::must(is_not_ascii_flag.is_set()).template error<not_utf8>; - }(); - }; - } - - template<typename Input> - constexpr bool is_utf8_no_ascii(const Input& input) { - return lexy::match<detect_utf8::DetectUtf8<false>>(input); - } - - template<typename Input> - constexpr bool is_utf8(const Input& input) { - return lexy::match<detect_utf8::DetectUtf8<true>>(input); - } -}
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