public static DjangoForBlock Parse(BlockParseInfo parseInfo)
{
var words = parseInfo.Args.Split(' ');
int inStart = -1;
int inOffset = 0, inIndex = -1;
var definitions = new List <Tuple <string, int> >();
for (int i = 0; i < words.Length; i++)
{
var word = words[i];
if (word == "in")
{
inStart = inOffset + parseInfo.Start + parseInfo.Command.Length;
inIndex = i;
break;
}
else if (words[i].IndexOfAny(NewLines) != -1)
{
// unterminated tag
break;
}
if (!String.IsNullOrEmpty(word))
{
definitions.Add(new Tuple <string, int>(word, inOffset + parseInfo.Start + parseInfo.Command.Length));
}
inOffset += words[i].Length + 1;
}
// parse the arguments...
int reversedStart = -1;
DjangoVariable variable = null;
int argsEnd = -1;
if (inIndex != -1)
{
string filterText = "";
argsEnd = inStart + "in".Length + 1;
for (int i = inIndex + 1; i < words.Length; i++)
{
int nlStart = words[i].IndexOfAny(NewLines);
string trimmed = words[i];
if (nlStart != -1)
{
trimmed = words[i].Substring(0, nlStart);
}
if (i != inIndex + 1 && trimmed == words[i]) // if we trimmed we don't have an extra space
{
filterText += " ";
argsEnd += 1;
}
if (trimmed == "reversed")
{
reversedStart = argsEnd;
break;
}
filterText += trimmed;
argsEnd += trimmed.Length;
if (trimmed != words[i])
{
// unterminated tag
break;
}
}
var trimmedFilter = filterText.TrimStart(' ');
variable = DjangoVariable.Parse(trimmedFilter,
inStart + "in".Length + 1 + filterText.Length - trimmedFilter.Length);
}
return(new DjangoForBlock(parseInfo, inStart, variable, argsEnd, reversedStart, definitions.ToArray()));
}
protected override void Reparse(string text)
{
Variable = DjangoVariable.Parse(text);
}