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Remove codecvt dependency. (#516)

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This resolves:
https://github.com/ArthurSonzogni/FTXUI/issues/514
This commit is contained in:
Arthur Sonzogni (slow/sick) 2022-11-26 20:43:09 +01:00 committed by GitHub
parent 55b9706cfd
commit 05f29ff3b3
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 201 additions and 71 deletions
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4
src/ftxui/component/animation_test.cpp
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@ -26,8 +26,8 @@ TEST(AnimationTest, StartAndEnd) {
animation::easing::BounceInOut,
};
for (auto& it : functions) {
EXPECT_NEAR(0.f, it(0.f), 1.0e-4);
EXPECT_NEAR(1.f, it(1.f), 1.0e-4);
EXPECT_NEAR(0.F, it(0.F), 1.0e-4);
EXPECT_NEAR(1.F, it(1.F), 1.0e-4);
}
}

3
src/ftxui/component/loop.cpp
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@ -3,8 +3,9 @@
namespace ftxui {
// NOLINTNEXTLINE
Loop::Loop(ScreenInteractive* screen, Component component)
: screen_(screen), component_(component) {
: screen_(screen), component_(std::move(component)) {
screen_->PreMain();
}

8
src/ftxui/component/screen_interactive.cpp
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@ -366,7 +366,7 @@ CapturedMouse ScreenInteractive::CaptureMouse() {
}
void ScreenInteractive::Loop(Component component) { // NOLINT
class Loop loop(this, component);
class Loop loop(this, std::move(component));
loop.Run();
}
@ -559,12 +559,13 @@ void ScreenInteractive::RunOnceBlocking(Component component) {
RunOnce(component);
}
// NOLINTNEXTLINE
void ScreenInteractive::RunOnce(Component component) {
Task task;
while (task_receiver_->ReceiveNonBlocking(&task)) {
HandleTask(component, task);
}
Draw(component);
Draw(std::move(component));
}
void ScreenInteractive::HandleTask(Component component, Task& task) {
@ -620,8 +621,9 @@ void ScreenInteractive::HandleTask(Component component, Task& task) {
// NOLINTNEXTLINE
void ScreenInteractive::Draw(Component component) {
if (frame_valid_)
if (frame_valid_) {
return;
}
auto document = component->Render();
int dimx = 0;
int dimy = 0;

2
src/ftxui/dom/frame.cpp
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@ -158,7 +158,7 @@ class FocusCursor : public Focus {
private:
void Render(Screen& screen) override {
Select::Render(screen);
Select::Render(screen); // NOLINT
screen.SetCursor(Screen::Cursor{
box_.x_min,
box_.y_min,

233
src/ftxui/screen/string.cpp
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@ -1,29 +1,16 @@
// Most of this code is borrowed from:
// Markus Kuhn -- 2007-05-26 (Unicode 5.0)
// Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
// Content of this file was created thanks to:
// - https://www.unicode.org/Public/UCD/latest/ucd/auxiliary/WordBreakProperty.txt
// - Markus Kuhn -- 2007-05-26 (Unicode 5.0)
// http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
// Thanks you!
//
// Modified by Arthur Sonzogni for FTXUI.
#include "ftxui/screen/string.hpp"
#include <array> // for array
#include <codecvt> // for codecvt_utf8_utf16
#include <cstdint> // for uint32_t, uint8_t
#include <locale> // for wstring_convert
#include <string> // for string, basic_string, wstring
#include <tuple> // for std::ignore
// `codecvt_utf8_utf16 is deprecated in C++17. However there are no replacement.
// Microsoft provides one, but that's not standardized. Hence the two code path.
#if defined(_WIN32)
#include <windows.h>
#include <stringapiset.h>
#else
#include <codecvt> // for codecvt_utf8_utf16
#include <locale> // for wstring_convert
#endif
namespace {
struct Interval {
@ -1587,56 +1574,56 @@ bool EatCodePoint(const std::string& input,
*end = start + 1;
return false;
}
uint8_t byte_1 = input[start];
uint8_t C0 = input[start];
// 1 byte string.
if ((byte_1 & 0b1000'0000) == 0b0000'0000) { // NOLINT
*ucs = byte_1 & 0b0111'1111; // NOLINT
if ((C0 & 0b1000'0000) == 0b0000'0000) { // NOLINT
*ucs = C0 & 0b0111'1111; // NOLINT
*end = start + 1;
return true;
}
// 2 byte string.
if ((byte_1 & 0b1110'0000) == 0b1100'0000 && // NOLINT
if ((C0 & 0b1110'0000) == 0b1100'0000 && // NOLINT
start + 1 < input.size()) {
uint8_t byte_2 = input[start + 1];
uint8_t C1 = input[start + 1];
*ucs = 0;
*ucs += byte_1 & 0b0001'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += byte_2 & 0b0011'1111; // NOLINT
*ucs += C0 & 0b0001'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += C1 & 0b0011'1111; // NOLINT
*end = start + 2;
return true;
}
// 3 byte string.
if ((byte_1 & 0b1111'0000) == 0b1110'0000 && // NOLINT
if ((C0 & 0b1111'0000) == 0b1110'0000 && // NOLINT
start + 2 < input.size()) {
uint8_t byte_2 = input[start + 1];
uint8_t byte_3 = input[start + 2];
uint8_t C1 = input[start + 1];
uint8_t C2 = input[start + 2];
*ucs = 0;
*ucs += byte_1 & 0b0000'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += byte_2 & 0b0011'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += byte_3 & 0b0011'1111; // NOLINT
*ucs += C0 & 0b0000'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += C1 & 0b0011'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += C2 & 0b0011'1111; // NOLINT
*end = start + 3;
return true;
}
// 4 byte string.
if ((byte_1 & 0b1111'1000) == 0b1111'0000 && // NOLINT
if ((C0 & 0b1111'1000) == 0b1111'0000 && // NOLINT
start + 3 < input.size()) {
uint8_t byte_2 = input[start + 1];
uint8_t byte_3 = input[start + 2];
uint8_t byte_4 = input[start + 3];
uint8_t C1 = input[start + 1];
uint8_t C2 = input[start + 2];
uint8_t C3 = input[start + 3];
*ucs = 0;
*ucs += byte_1 & 0b0000'0111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += byte_2 & 0b0011'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += byte_3 & 0b0011'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += byte_4 & 0b0011'1111; // NOLINT
*ucs += C0 & 0b0000'0111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += C1 & 0b0011'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += C2 & 0b0011'1111; // NOLINT
*ucs <<= 6; // NOLINT
*ucs += C3 & 0b0011'1111; // NOLINT
*end = start + 4;
return true;
}
@ -1645,6 +1632,49 @@ bool EatCodePoint(const std::string& input,
return false;
}
// From UTF16 encoded string |input|, eat in between 1 and 4 byte representing
// one codepoint. Put the codepoint into |ucs|. Start at |start| and update
// |end| to represent the beginning of the next byte to eat for consecutive
// executions.
bool EatCodePoint(const std::wstring& input,
size_t start,
size_t* end,
uint32_t* ucs) {
if (start >= input.size()) {
*end = start + 1;
return false;
}
// On linux wstring uses the UTF32 encoding:
if constexpr (sizeof(wchar_t) == 4) {
*ucs = input[start]; // NOLINT
*end = start + 1;
return true;
}
// On windows, wstring uses the UTF16 encoding:
int32_t C0 = input[start]; // NOLINT
// 1 word size:
if (C0 < 0xd800 || C0 >= 0xdc00) { // NOLINT
*ucs = C0;
*end = start + 1;
return true;
}
// 2 word size:
if (start + 1 >= input.size()) {
*end = start + 2;
return false;
}
int32_t C1 = input[start + 1]; // NOLINT
*ucs = ((C0 & 0x3ff) << 10) + (C1 & 0x3ff) + 0x10000; // NOLINT
*end = start + 2;
return true;
}
} // namespace
namespace ftxui {
@ -1865,32 +1895,107 @@ std::vector<WordBreakProperty> Utf8ToWordBreakProperty(
/// Convert a UTF8 std::string into a std::wstring.
std::string to_string(const std::wstring& s) {
#if defined(_WIN32)
if (s.empty())
return std::string();
int size = WideCharToMultiByte(CP_UTF8, 0, &s[0], (int)s.size(), nullptr, 0,
nullptr, nullptr);
std::string out(size, 0);
WideCharToMultiByte(CP_UTF8, 0, &s[0], (int)s.size(), &out[0], size, nullptr,
nullptr);
std::string out;
size_t i = 0;
uint32_t codepoint = 0;
while (EatCodePoint(s, i, &i, &codepoint)) {
// Code point <-> UTF-8 conversion
//
// ┏━━━━━━━━┳━━━━━━━━┳━━━━━━━━┳━━━━━━━━┓
// ┃Byte 1 ┃Byte 2 ┃Byte 3 ┃Byte 4 ┃
// ┡━━━━━━━━╇━━━━━━━━╇━━━━━━━━╇━━━━━━━━┩
// │0xxxxxxx│ │ │ │
// ├────────┼────────┼────────┼────────┤
// │110xxxxx│10xxxxxx│ │ │
// ├────────┼────────┼────────┼────────┤
// │1110xxxx│10xxxxxx│10xxxxxx│ │
// ├────────┼────────┼────────┼────────┤
// │11110xxx│10xxxxxx│10xxxxxx│10xxxxxx│
// └────────┴────────┴────────┴────────┘
// 1 byte UTF8
if (codepoint <= 0b000'0000'0111'1111) { // NOLINT
uint8_t p1 = codepoint;
out.push_back(p1); // NOLINT
continue;
}
// 2 bytes UTF8
if (codepoint <= 0b000'0111'1111'1111) { // NOLINT
uint8_t p2 = codepoint & 0b111111; // NOLINT
codepoint >>= 6; // NOLINT
uint8_t p1 = codepoint; // NOLINT
out.push_back(0b11000000 + p1); // NOLINT
out.push_back(0b10000000 + p2); // NOLINT
continue;
}
// 3 bytes UTF8
if (codepoint <= 0b1111'1111'1111'1111) { // NOLINT
uint8_t p3 = codepoint & 0b111111; // NOLINT
codepoint >>= 6; // NOLINT
uint8_t p2 = codepoint & 0b111111; // NOLINT
codepoint >>= 6; // NOLINT
uint8_t p1 = codepoint; // NOLINT
out.push_back(0b11100000 + p1); // NOLINT
out.push_back(0b10000000 + p2); // NOLINT
out.push_back(0b10000000 + p3); // NOLINT
continue;
}
// 4 bytes UTF8
if (codepoint <= 0b1'0000'1111'1111'1111'1111) { // NOLINT
uint8_t p4 = codepoint & 0b111111; // NOLINT
codepoint >>= 6; // NOLINT
uint8_t p3 = codepoint & 0b111111; // NOLINT
codepoint >>= 6; // NOLINT
uint8_t p2 = codepoint & 0b111111; // NOLINT
codepoint >>= 6; // NOLINT
uint8_t p1 = codepoint; // NOLINT
out.push_back(0b11110000 + p1); // NOLINT
out.push_back(0b10000000 + p2); // NOLINT
out.push_back(0b10000000 + p3); // NOLINT
out.push_back(0b10000000 + p4); // NOLINT
continue;
}
// Something else?
}
return out;
#else
return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>>().to_bytes(s);
#endif
}
/// Convert a std::wstring into a UTF8 std::string.
std::wstring to_wstring(const std::string& s) {
#if defined(_WIN32)
if (s.empty())
return std::wstring();
int size = MultiByteToWideChar(CP_UTF8, 0, &s[0], (int)s.size(), nullptr, 0);
std::wstring out(size, 0);
MultiByteToWideChar(CP_UTF8, 0, &s[0], (int)s.size(), &out[0], size);
std::wstring out;
size_t i = 0;
uint32_t codepoint = 0;
while (EatCodePoint(s, i, &i, &codepoint)) {
// On linux wstring are UTF32 encoded:
if constexpr (sizeof(wchar_t) == 4) {
out.push_back(codepoint); // NOLINT
continue;
}
// On Windows, wstring are UTF16 encoded:
// Codepoint encoded using 1 word:
// NOLINTNEXTLINE
if (codepoint < 0xD800 || (codepoint > 0xDFFF && codepoint < 0x10000)) {
uint16_t p0 = codepoint; // NOLINT
out.push_back(p0); // NOLINT
continue;
}
// Codepoint encoded using 2 words:
codepoint -= 0x010000; // NOLINT
uint16_t p0 = (((codepoint << 12) >> 22) + 0xD800); // NOLINT
uint16_t p1 = (((codepoint << 22) >> 22) + 0xDC00); // NOLINT
out.push_back(p0); // NOLINT
out.push_back(p1); // NOLINT
}
return out;
#else
return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>>().from_bytes(s);
#endif
}
} // namespace ftxui

22
src/ftxui/screen/string_test.cpp
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@ -138,6 +138,28 @@ TEST(StringTest, Utf8ToWordBreakProperty) {
EXPECT_EQ(Utf8ToWordBreakProperty("\n"), T({})); // FIXME
}
TEST(StringTest, to_string) {
EXPECT_EQ(to_string(L"hello"), "hello");
EXPECT_EQ(to_string(L"€"), "€");
EXPECT_EQ(to_string(L"ÿ"), "ÿ");
EXPECT_EQ(to_string(L"߿"), "߿");
EXPECT_EQ(to_string(L"ɰɱ"), "ɰɱ");
EXPECT_EQ(to_string(L"«»"), "«»");
EXPECT_EQ(to_string(L"嵰嵲嵫"), "嵰嵲嵫");
EXPECT_EQ(to_string(L"🎅🎄"), "🎅🎄");
}
TEST(StringTest, to_wstring) {
EXPECT_EQ(to_wstring(std::string("hello")), L"hello");
EXPECT_EQ(to_wstring(std::string("€")), L"€");
EXPECT_EQ(to_wstring(std::string("ÿ")), L"ÿ");
EXPECT_EQ(to_wstring(std::string("߿")), L"߿");
EXPECT_EQ(to_wstring(std::string("ɰɱ")), L"ɰɱ");
EXPECT_EQ(to_wstring(std::string("«»")), L"«»");
EXPECT_EQ(to_wstring(std::string("嵰嵲嵫")), L"嵰嵲嵫");
EXPECT_EQ(to_wstring(std::string("🎅🎄")), L"🎅🎄");
}
} // namespace ftxui
// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in