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Fixed infinite loop in Screen::ToString() for non-printable chars (#69)

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robobuggy 2021-02-04 09:32:05 +01:00 committed by GitHub
parent 92ec5ab4ca
commit d0eab41344
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1 changed files with 8 additions and 1 deletions
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9
src/ftxui/screen/screen.cpp
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@ -164,8 +164,15 @@ std::string Screen::ToString() {
auto& pixel = pixels_[y][x]; auto& pixel = pixels_[y][x];
wchar_t c = pixel.character; wchar_t c = pixel.character;
UpdatePixelStyle(ss, previous_pixel, pixel); UpdatePixelStyle(ss, previous_pixel, pixel);
auto width = wchar_width(c);
if (width <= 0) {
// Avoid an infinite loop for non-printable characters
c = L' ';
width = 1;
}
ss << c; ss << c;
x += wchar_width(c); x += width;
} }
} }