Function ImTextFindPreviousUtf8Codepoint

3rdparty/imgui/src/imgui.cpp:2777–2786

}

const char* ImTextFindPreviousUtf8Codepoint(const char* in_text_start, const char* in_p)
{
    while (in_p > in_text_start)
    {
        in_p--;
        if ((*in_p & 0xC0) != 0x80)
            return in_p;
    }
    return in_text_start;
}

const char* ImTextFindValidUtf8CodepointEnd(const char* in_text_start, const char* in_text_end, const char* in_p)
{