BaseHeaderParser.cs

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namespace System.Net.Http.Headers;
 
internal abstract class BaseHeaderParser : HttpHeaderParser
{
    protected BaseHeaderParser(bool supportsMultipleValues)
        : base(supportsMultipleValues)
    {
    }
    protected BaseHeaderParser(bool supportsMultipleValues) {…}
 
    protected abstract int GetParsedValueLength(string value, int startIndex, object storeValue, out object parsedValue);
 
    public sealed override bool TryParseValue(string value, object storeValue, ref int index, out object parsedValue)
    {
        parsedValue = null;
        if (string.IsNullOrEmpty(value) || index == value.Length)
        {
            return base.SupportsMultipleValues;
        }
        bool separatorFound = false;
        int nextNonEmptyOrWhitespaceIndex = HeaderUtilities.GetNextNonEmptyOrWhitespaceIndex(value, index, base.SupportsMultipleValues, out separatorFound);
        if (separatorFound && !base.SupportsMultipleValues)
        {
            return false;
        }
        if (nextNonEmptyOrWhitespaceIndex == value.Length)
        {
            if (base.SupportsMultipleValues)
            {
                index = nextNonEmptyOrWhitespaceIndex;
            }
            return base.SupportsMultipleValues;
        }
        object parsedValue2;
        int parsedValueLength = GetParsedValueLength(value, nextNonEmptyOrWhitespaceIndex, storeValue, out parsedValue2);
        if (parsedValueLength == 0)
        {
            return false;
        }
        nextNonEmptyOrWhitespaceIndex += parsedValueLength;
        nextNonEmptyOrWhitespaceIndex = HeaderUtilities.GetNextNonEmptyOrWhitespaceIndex(value, nextNonEmptyOrWhitespaceIndex, base.SupportsMultipleValues, out separatorFound);
        if ((separatorFound && !base.SupportsMultipleValues) || (!separatorFound && nextNonEmptyOrWhitespaceIndex < value.Length))
        {
            return false;
        }
        index = nextNonEmptyOrWhitespaceIndex;
        parsedValue = parsedValue2;
        return true;
    }
    public sealed override bool TryParseValue(string value, object storeValue, ref int index, out object parsedValue) {…}
}
internal abstract class BaseHeaderParser : HttpHeaderParser {…};