Appends something like `name=value` to string
, taking care to quote value
if needed, and if so, to escape any
quotes or backslashes in value
.
Alternatively, if value
is a non-ASCII UTF-8 string, it will be appended using RFC5987 syntax. Although in theory this is
supposed to work anywhere in HTTP that uses this style of parameter, in reality, it can only be used portably with the Content-Disposition
"filename" parameter.
If value
is null, this will just append name
to string
.
string |
a StringBuilder being used to construct an HTTP header value |
name |
a parameter name |
value |
a parameter value, or null |