|
public static Parse ( string parameter ) : |
||
| parameter | string | Parameter string to be parsed. |
| Résultat | ||
internal static HeaderValue ParseInternal(string header, string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
HeaderParameterCollection parameters = new HeaderParameterCollection();
StringBuilder currentValue = new StringBuilder(64);
StringBuilder currentParameter = new StringBuilder(128);
StringBuilder currentTarget = currentValue;
bool isInString = false;
bool isEscape = false;
foreach (char letter in value)
{
switch (letter)
{
default:
ParseOtherChars(letter, currentTarget, ref isInString, ref isEscape);
break;
case '\\':
ParseEscapeChar(letter, currentTarget, ref isInString, ref isEscape);
break;
case '"':
ParseStringChar(letter, currentTarget, ref isInString, ref isEscape);
break;
case ';':
ParseSeparatorChar(letter, ref currentTarget, ref isInString, ref isEscape, currentValue, currentParameter, parameters);
break;
}
}
if (currentParameter.Length > 0)
{
parameters.Add(HeaderParameter.Parse(currentParameter.ToString().Trim()));
}
return(CreateInstance(header, currentValue.ToString(), parameters));
}
private static void ParseSeparatorChar(char chr, ref StringBuilder currentTarget, ref bool isInString, ref bool isEscape, StringBuilder currentValue, StringBuilder currentParameter, HeaderParameterCollection parameters)
{
if (isEscape)
{
isEscape = false;
currentTarget.Append("\\" + chr);
}
else if (isInString)
{
currentTarget.Append(chr);
}
else
{
if (currentTarget == currentValue)
{
currentTarget = currentParameter;
}
else
{
parameters.Add(HeaderParameter.Parse(currentParameter.ToString().Trim()));
currentParameter.Clear();
}
}
}