internal Attr(LazySubstring name, LazySubstring value)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
this.name = name;
this.value = value;
this.modified = false;
}
private int ParseBeginTag(Match beginMatch, out Element element, out EndTag trailingEnd)
{
trailingEnd = null;
Group tagNameGroup = beginMatch.Groups["tagname"];
string tagName = tagNameGroup.Value;
int tagPos = tagNameGroup.Index + tagNameGroup.Length;
ArrayList attributes = null;
LazySubstring extraResidue = null;
bool isComplete = false;
while (true)
{
Match match = endBeginTagMatcher.Match(tagPos);
if (match != null)
{
tagPos += match.Length;
if (match.Groups[1].Success)
{
isComplete = true;
if (supportTrailingEnd)
trailingEnd = new EndTag(data, tagPos, 0, tagName, true);
}
break;
}
match = attrNameMatcher.Match(tagPos);
if (match == null)
{
int residueStart = tagPos;
int residueEnd;
residueEnd = tagPos = data.IndexOfAny(new char[] { '<', '>' }, tagPos);
if (tagPos == -1)
{
residueEnd = tagPos = data.Length;
}
else if (data[tagPos] == '>')
{
tagPos++;
}
else
{
Debug.Assert(data[tagPos] == '<');
}
extraResidue = residueStart < residueEnd ? new LazySubstring(data, residueStart, residueEnd - residueStart) : null;
break;
}
else
{
tagPos += match.Length;
LazySubstring attrName = new LazySubstring(data, match.Groups[1].Index, match.Groups[1].Length);
LazySubstring attrValue = null;
match = quotedAttrValueMatcher.Match(tagPos);
if (match != null)
{
attrValue = new LazySubstring(data, match.Groups[2].Index, match.Groups[2].Length);
tagPos += match.Length;
}
else
{
match = unquotedAttrValueMatcher.Match(tagPos);
if (match != null)
{
attrValue = new LazySubstring(data, match.Groups[1].Index, match.Groups[1].Length);
tagPos += match.Length;
}
}
// no attribute value; that's OK
if (attributes == null)
attributes = new ArrayList();
attributes.Add(new Attr(attrName, attrValue));
}
}
int len = tagPos - beginMatch.Index;
element = new BeginTag(data, beginMatch.Index, len, tagName, attributes == null ? null : (Attr[])attributes.ToArray(typeof(Attr)), isComplete, extraResidue);
return len;
}
internal BeginTag(string data, int offset, int len, string name, Attr[] attributes, bool complete, LazySubstring extraResidue) : base(data, offset, len, name)
{
this.complete = complete;
_attributes = attributes == null ? new Attr[0] : attributes;
this.extraResidue = extraResidue;
}
public BeginTag(string data, int offset, int len, string name, Attr[] attributes, bool complete, string extraResidue) : this(data, offset, len, name, attributes, complete, LazySubstring.MaybeCreate(extraResidue))
{
}
internal Attr(LazySubstring name, LazySubstring value)
{
if (name == null)
throw new ArgumentNullException("name");
this.name = name;
this.value = value;
this.modified = false;
}
internal BeginTag(string data, int offset, int len, string name, Attr[] attributes, bool complete, LazySubstring extraResidue) : base(data, offset, len, name)
{
this.complete = complete;
_attributes = attributes == null ? new Attr[0] : attributes;
this.extraResidue = extraResidue;
}
private int ParseBeginTag(Match beginMatch, out Element element, out EndTag trailingEnd)
{
trailingEnd = null;
Group tagNameGroup = beginMatch.Groups["tagname"];
string tagName = tagNameGroup.Value;
int tagPos = tagNameGroup.Index + tagNameGroup.Length;
ArrayList attributes = null;
LazySubstring extraResidue = null;
bool isComplete = false;
while (true)
{
Match match = endBeginTagMatcher.Match(tagPos);
if (match != null)
{
tagPos += match.Length;
if (match.Groups[1].Success)
{
isComplete = true;
if (supportTrailingEnd)
{
trailingEnd = new EndTag(data, tagPos, 0, tagName, true);
}
}
break;
}
match = attrNameMatcher.Match(tagPos);
if (match == null)
{
int residueStart = tagPos;
int residueEnd;
residueEnd = tagPos = data.IndexOfAny(new char[] { '<', '>' }, tagPos);
if (tagPos == -1)
{
residueEnd = tagPos = data.Length;
}
else if (data[tagPos] == '>')
{
tagPos++;
}
else
{
Debug.Assert(data[tagPos] == '<');
}
extraResidue = residueStart < residueEnd ? new LazySubstring(data, residueStart, residueEnd - residueStart) : null;
break;
}
else
{
tagPos += match.Length;
LazySubstring attrName = new LazySubstring(data, match.Groups[1].Index, match.Groups[1].Length);
LazySubstring attrValue = null;
match = quotedAttrValueMatcher.Match(tagPos);
if (match != null)
{
attrValue = new LazySubstring(data, match.Groups[2].Index, match.Groups[2].Length);
tagPos += match.Length;
}
else
{
match = unquotedAttrValueMatcher.Match(tagPos);
if (match != null)
{
attrValue = new LazySubstring(data, match.Groups[1].Index, match.Groups[1].Length);
tagPos += match.Length;
}
}
// no attribute value; that's OK
if (attributes == null)
{
attributes = new ArrayList();
}
attributes.Add(new Attr(attrName, attrValue));
}
}
int len = tagPos - beginMatch.Index;
element = new BeginTag(data, beginMatch.Index, len, tagName, attributes == null ? null : (Attr[])attributes.ToArray(typeof(Attr)), isComplete, extraResidue);
return(len);
}