std::string encode_field(str_ref v, bool add_br)
{
std::string r;
r.reserve(v.size() << 1);
while (v)
{
if (boost::istarts_with(v, "ftp://")
|| boost::istarts_with(v, "http://")
|| boost::istarts_with(v, "https://")
|| boost::istarts_with(v, "mailto:"))
{
size_t p = 0;
while (p < v.size() && !isspace(v[p] & 0xff) && v[p] != '\"' && v[p] != '<' && v[p] != '>' && v[p] != '[' && v[p] != ']')
p++;
if (v[p - 1] == '!' || v[p - 1] == ',' || v[p - 1] == '.' || v[p - 1] == '?')
p--;
if (v[p - 1] == ')')
p--;
str_ref url = v.substr(0, p);
if (boost::istarts_with(v, "ftp."))
r += web_link(url, "ftp://" + url.s());
else if (boost::istarts_with(v, "www."))
r += web_link(url, "http://" + url.s());
else
r += web_link(boost::istarts_with(v, "mailto:") ? url.substr(7) : url, url);
while (p--)
v.pop_front();
}
else
{
switch (v.front())
{
case '\n':
r += add_br ? "<br>" : " ";
break;
case '\r':
break;
case '&':
r += "&";
break;
case '<':
r += "<";
break;
default:
r += v.front();
}
v.pop_front();
}
}
return r;
}
static std::string web_encode(str_ref v)
{
std::string d;
d.reserve(v.size() << 1);
while (v)
{
switch (v.front())
{
case '"':
d += """;
break;
case '&':
d += "&";
break;
case '<':
d += "<";
break;
default:
d += v.front();
}
v.pop_front();
}
return d;
}
