internal static bool Parse(Parser.ParseContext context)
{
if (ElementBinaryOperator.ParseBinary(context))
{
return(true);
}
else if (ElementUnitaryOperator.ParseUnitary(context))
{
return(true);
}
else if (ElementDot.ParseDot(context))
{
return(true);
}
else if (ElementFunction.ParseFunction(context))
{
return(true);
}
return(false);
}
internal static bool ParseFunction(Parser.ParseContext context)
{
char c = context.Expression[context.TokenPosition];
int offset = 0;
string subStr;
OperatorType operationType = OperatorType.None;
TokenType lastTokenType = context.LastTokenType;
switch (c)
{
case 'e':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(6, context.Expression.Length - context.TokenPosition));
if (subStr.Equals("empty ") || subStr.Equals("empty("))
{
offset = 4;
operationType = OperatorType.Empty;
break;
}
return(false);
case 't':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(9, context.Expression.Length - context.TokenPosition));
if (subStr == "toNumber " || subStr == "toNumber(")
{
offset = 7;
operationType = OperatorType.ToNumber;
break;
}
else if (subStr == "toString " || subStr == "toString(")
{
offset = 7;
operationType = OperatorType.ToString;
break;
}
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(10, context.Expression.Length - context.TokenPosition));
if (subStr == "toBoolean " || subStr == "toBoolean(")
{
offset = 8;
operationType = OperatorType.ToBoolean;
break;
}
return(false);
case 'm':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(10, context.Expression.Length - context.TokenPosition));
if (subStr == "mathRound " || subStr == "mathRound(")
{
offset = 8;
operationType = OperatorType.MathRound;
break;
}
else if (subStr == "mathFloor " || subStr == "mathFloor(")
{
offset = 8;
operationType = OperatorType.MathFloor;
break;
}
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(9, context.Expression.Length - context.TokenPosition));
if (subStr == "mathCeil " || subStr == "mathCeil(")
{
offset = 7;
operationType = OperatorType.MathCeil;
break;
}
return(false);
case 'o':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(14, context.Expression.Length - context.TokenPosition));
if (subStr == "os:htmlEncode " || subStr == "os:htmlEncode(")
{
offset = 12;
operationType = OperatorType.HtmlEncode;
break;
}
if (subStr == "os:htmlDecode " || subStr == "os:htmlDecode(")
{
offset = 12;
operationType = OperatorType.HtmlDecode;
break;
}
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(13, context.Expression.Length - context.TokenPosition));
if (subStr == "os:urlEncode " || subStr == "os:urlEncode(")
{
offset = 11;
operationType = OperatorType.UrlEncode;
break;
}
if (subStr == "os:urlDecode " || subStr == "os:urlDecode(")
{
offset = 11;
operationType = OperatorType.UrlDecode;
break;
}
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(18, context.Expression.Length - context.TokenPosition));
if (subStr == "os:jsStringEscape " || subStr == "os:jsStringEscape(")
{
offset = 16;
operationType = OperatorType.JsStringEscape;
break;
}
return(false);
case 'h':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(11, context.Expression.Length - context.TokenPosition));
if (subStr == "htmlEncode " || subStr == "htmlEncode(")
{
offset = 9;
operationType = OperatorType.HtmlEncode;
break;
}
if (subStr == "htmlDecode " || subStr == "htmlDecode(")
{
offset = 9;
operationType = OperatorType.HtmlDecode;
break;
}
return(false);
case 'u':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(10, context.Expression.Length - context.TokenPosition));
if (subStr == "urlEncode " || subStr == "urlEncode(")
{
offset = 8;
operationType = OperatorType.UrlEncode;
break;
}
if (subStr == "urlDecode " || subStr == "urlDecode(")
{
offset = 8;
operationType = OperatorType.UrlDecode;
break;
}
return(false);
case 'j':
subStr = context.Expression.Substring(context.TokenPosition, Math.Min(15, context.Expression.Length - context.TokenPosition));
if (subStr == "jsStringEscape " || subStr == "jsStringEscape(")
{
offset = 13;
operationType = OperatorType.JsStringEscape;
break;
}
return(false);
default:
return(false);
}
ValidateTokenOrder(context, TokenType.Function);
context.TokenPosition += offset;
IList <IList <Element> > parameters = GetParameters(context);
ElementOperator element = new ElementFunction(operationType, parameters);
ProcessOperator(context, element);
return(true);
}