// static
bool wordEncoder::isEncodingNeeded
(const generationContext& ctx, const string& buffer,
const charset& charset, const string& lang)
{
if (!ctx.getInternationalizedEmailSupport())
{
// Charset-specific encoding
encoding recEncoding;
if (charset.getRecommendedEncoding(recEncoding))
return true;
// No encoding is needed if the buffer only contains ASCII chars
if (utility::stringUtils::findFirstNonASCIIchar(buffer.begin(), buffer.end()) != string::npos)
return true;
}
// Force encoding when there are only ASCII chars, but there is
// also at least one of '\n' or '\r' (header fields)
if (buffer.find_first_of("\n\r") != string::npos)
return true;
// If any RFC-2047 sequence is found in the buffer, encode it
if (buffer.find("=?") != string::npos || buffer.find("?=") != string::npos)
return true;
// If a language is specified, force encoding
if (!lang.empty())
return true;
return false;
}
void emailAddress::generateImpl
(const generationContext& ctx, utility::outputStream& os,
const string::size_type curLinePos, string::size_type* newLinePos) const
{
string localPart, domainPart;
if (ctx.getInternationalizedEmailSupport() &&
(!utility::stringUtils::is7bit(m_localName.getBuffer()) ||
!utility::stringUtils::is7bit(m_domainName.getBuffer())))
{
// Local part
string localPartUTF8(m_localName.getConvertedText(vmime::charsets::UTF_8));
word localPartWord(localPartUTF8, vmime::charsets::UTF_8);
vmime::utility::outputStreamStringAdapter os(localPart);
localPartWord.generate(ctx, os, 0, NULL, text::FORCE_NO_ENCODING | text::QUOTE_IF_NEEDED, NULL);
// Domain part
domainPart = m_domainName.getConvertedText(vmime::charsets::UTF_8);
}
else
{
// Local part
vmime::utility::outputStreamStringAdapter os(localPart);
m_localName.generate(ctx, os, 0, NULL, text::QUOTE_IF_NEEDED, NULL);
// Domain part as IDNA
domainPart = domainNameToIDNA(m_domainName.getConvertedText(vmime::charsets::UTF_8));
}
os << localPart
<< "@"
<< domainPart;
if (newLinePos)
{
*newLinePos = curLinePos
+ localPart.length()
+ 1 // @
+ domainPart.length();
}
}
