Function SanitizeNewlines

src/OpenColorIO/OCIOYaml.cpp:37–62

typedef YAML::const_iterator Iterator;

std::string SanitizeNewlines(const std::string &input)
{
    if (input.empty()) 
        return input;

    // YAML is changing the trailing newlines when reading them:
    // - Written as YAML::Literal (starts with a "|"), descriptions will be read back with a
    //   single newline. One is  added if there was none, only one is kept if there were
    //   several.
    // - Written as YAML::Value string (does not start with "|"), all trailing newlines ('\n')
    //   are preserved.
    // Trailing newlines are inconsistently preserved, lets remove them in all cases.
    std::string str = input;
    auto last = str.back();
    while (last == '\n' && str.length())
    {
        str.pop_back();
        last = str.back();
    }

    // Also, note that a \n is only interpreted as a newline if it is used in a string that is
    // within double quotes.  E.g., "A string \n with embedded \n newlines."  Indeed, without the
    // double quotes the backslash is generally not interpreted as an escape character in YAML.

    return str;
}

// Basic types