parse method
Creates a new header value object from parsing a header value string with both value and optional parameters.
Implementation
static HeaderValue parse(String value,
{String parameterSeparator: ";",
String valueSeparator: null,
bool preserveBackslash: false}) {
return _HeaderValue.parse(value,
parameterSeparator: parameterSeparator,
valueSeparator: valueSeparator,
preserveBackslash: preserveBackslash);
}