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Merge baa5973128 into 8922e6d55e

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Alex 2024-10-29 13:28:21 +03:00 committed by GitHub
commit 150718c149
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1 changed files with 19 additions and 6 deletions
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25
src/ftxui/screen/terminal.cpp
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@ -48,25 +48,38 @@ Dimensions& FallbackSize() {
return g_fallback_size;
}
const char* Safe(const char* c) {
return (c != nullptr) ? c : "";
}
bool Contains(const std::string& s, const char* key) {
return s.find(key) != std::string::npos;
}
// https://github.com/gabime/spdlog/blob/885b5473e291833b148eeac3b7ce227e582cd88b/include/spdlog/details/os-inl.h#L566
std::string getenv_safe(const char *field) {
#if defined(_MSC_VER)
#if defined(__cplusplus_winrt)
return std::string{}; // not supported under uwp
#else
size_t len = 0;
char buf[1024];
bool ok = ::getenv_s(&len, buf, sizeof(buf), field) == 0;
return ok ? buf : std::string{};
#endif
#else // revert to getenv
char *buf = ::getenv(field); // NOLINT(*-mt-unsafe)
return buf ? buf : std::string{};
#endif
}
Terminal::Color ComputeColorSupport() {
#if defined(__EMSCRIPTEN__)
return Terminal::Color::TrueColor;
#endif
std::string COLORTERM = Safe(std::getenv("COLORTERM")); // NOLINT
std::string COLORTERM = getenv_safe("COLORTERM");
if (Contains(COLORTERM, "24bit") || Contains(COLORTERM, "truecolor")) {
return Terminal::Color::TrueColor;
}
std::string TERM = Safe(std::getenv("TERM")); // NOLINT
std::string TERM = getenv_safe("TERM");
if (Contains(COLORTERM, "256") || Contains(TERM, "256")) {
return Terminal::Color::Palette256;
}