ladybird/AK/LogStream.cpp
Andreas Kling 8075ba5064 LogStream: Add a simple-ish mechanism for colorizing and styling output.
Meet TStyle. It allows you to write things like this:

    dbg() << TStyle(TStyle::Red, TStyle::Bold) << "Hello, friends!";

Any style used will be reset along with the newline emitted when the dbg()
temporary goes out of scope. :^)

This can definitely be improved, but I think it's a decent place to start.
2019-07-15 20:22:30 +02:00

53 lines
1.2 KiB
C++

#include <AK/AKString.h>
#include <AK/LogStream.h>
#include <AK/StringView.h>
namespace AK {
const LogStream& operator<<(const LogStream& stream, const String& value)
{
stream.write(value.characters(), value.length());
return stream;
}
const LogStream& operator<<(const LogStream& stream, const StringView& value)
{
stream.write(value.characters_without_null_termination(), value.length());
return stream;
}
const LogStream& operator<<(const LogStream& stream, int value)
{
return stream << String::number(value);
}
const LogStream& operator<<(const LogStream& stream, unsigned value)
{
return stream << String::number(value);
}
const LogStream& operator<<(const LogStream& stream, const void* value)
{
return stream << String::format("%p", value);
}
const LogStream& operator<<(const LogStream& stream, const TStyle& style)
{
stream << "\033[";
if (style.color() != TStyle::Color::NoColor)
stream << ((int)style.color() + 30) << (style.attributes() ? ";" : "");
else
stream << '0';
if (style.attributes() & TStyle::Attribute::Bold)
stream << '1';
stream << 'm';
stream.m_needs_style_reset = true;
return stream;
}
}