/// <summary>
/// Initializes a new instance of the TmxElement class.
/// </summary>
/// <param name="name">The name of this element.</param>
public TmxElement(string name)
{
this.nodes = new TmxNodeCollection(this);
this.attributes = new TmxAttributeCollection(this);
this.name = name;
this.isTerminated = false;
}
/// <summary>
/// This will search though this collection of nodes for all elements with the
/// specified name. If you want to search the subnodes recursively, you should
/// pass True as the parameter in searchChildren. This search is guaranteed to
/// return nodes in the order in which they are found in the document.
/// </summary>
/// <param name="name">The name of the element to find.</param>
/// <param name="searchChildren">True if you want to search sub-nodes, False to
/// only search this collection.</param>
/// <returns>A collection of all the nodes that match.</returns>
public TmxNodeCollection FindByName(string name, bool searchChildren)
{
TmxNodeCollection results = new TmxNodeCollection(null);
foreach (TmxNode node in this.List)
{
if (node is TmxElement)
{
if (((TmxElement)node).Name.ToLower().Equals(name.ToLower()))
{
results.Add(node);
}
if (searchChildren)
{
foreach (TmxNode matchedChild in ((TmxElement)node).Nodes.FindByName(name, searchChildren))
{
results.Add(matchedChild);
}
}
}
}
return(results);
}
/// <summary>
/// Initializes a new instance of the TmxElement class.
/// </summary>
/// <param name="name">The name of this element.</param>
public TmxElement(string name)
{
this.nodes = new TmxNodeCollection(this);
this.attributes = new TmxAttributeCollection(this);
this.name = name;
this.isTerminated = false;
}
/// <summary>
/// Initializes a new instance of the TmxDocument class.
/// </summary>
/// <param name="html">The HTML to parse.</param>
internal TmxDocument(string html, bool wantSpaces, bool addLineBreaks)
{
this.nodes = new TmxNodeCollection(null);
TmxParser parser = new TmxParser();
parser.RemoveEmptyElementText = !wantSpaces;
this.nodes = parser.Parse(html, addLineBreaks);
}
/// <summary>
/// Initializes a new instance of the TmxDocument class.
/// </summary>
/// <param name="html">The HTML to parse.</param>
internal TmxDocument(string html, bool wantSpaces, bool addLineBreaks)
{
this.nodes = new TmxNodeCollection(null);
TmxParser parser = new TmxParser();
parser.RemoveEmptyElementText = !wantSpaces;
this.nodes = parser.Parse(html, addLineBreaks);
}
/// <summary>
/// This allows you to directly access the first element in this colleciton with the given name.
/// If the node does not exist, this will return null.
/// </summary>
public TmxNode this[string name]
{
get
{
TmxNodeCollection results = this.FindByName(name, false);
if (results.Count > 0)
{
return(results[0]);
}
else
{
return(null);
}
}
}
/// <summary>
/// This will find the corresponding opening tag for the named one. This is identified as
/// the most recently read node with the same name, but with no child nodes.
/// </summary>
/// <param name="nodes">The collection of nodes.</param>
/// <param name="name">The name of the tag.</param>
/// <returns>The index of the opening tag, or -1 if it was not found.</returns>
private int FindTagOpenNodeIndex(TmxNodeCollection nodes, string name)
{
for (int index = nodes.Count - 1; index >= 0; index--)
{
if (nodes[index] is TmxElement)
{
if (Str.IsEqual(((TmxElement)nodes[index]).Name, name, true) &&
((TmxElement)nodes[index]).Nodes.Count == 0 &&
((TmxElement)nodes[index]).IsTerminated == false)
{
return(index);
}
}
}
return(-1);
}
/// <summary>
/// This will move all the nodes from the specified index to the new parent.
/// </summary>
/// <param name="nodes">The collection of nodes.</param>
/// <param name="node_index">The index of the first node (in the above collection) to move.</param>
/// <param name="new_parent">The node which will become the parent of the moved nodes.</param>
private void MoveNodesDown(ref TmxNodeCollection nodes, int node_index, TmxElement new_parent)
{
for (int i = node_index; i < nodes.Count; i++)
{
((TmxElement)new_parent).Nodes.Add(nodes[i]);
nodes[i].SetParent(new_parent);
}
int c = nodes.Count;
for (int i = node_index; i < c; i++)
{
nodes.RemoveAt(node_index);
}
new_parent.IsExplicitlyTerminated = true;
}
/*
* This method contains valid code. Commented for code coverage purpose.
*
* /// <summary>
* /// This will parse a string containing HTML and will produce a domain tree.
* /// </summary>
* /// <param name="html">The HTML to be parsed.</param>
* /// <returns>A tree representing the elements.</returns>
* public TmxNodeCollection Parse(string html)
* {
* return this.Parse(html, false);
* }
*/
public TmxNodeCollection Parse(string html, bool addLineBreaks)
{
TmxNodeCollection nodes = new TmxNodeCollection(null);
html = this.PreprocessScript(html, Token.SCRIPT);
html = this.PreprocessScript(html, Token.STYLE);
html = this.RemoveComments(html);
StringCollection tokens = this.GetTokens(html);
int index = 0;
TmxElement element = null;
while (index < tokens.Count)
{
if (Str.IsLT(tokens[index]))
{
// Read open tag
index++;
if (index >= tokens.Count)
{
break;
}
string tag_name = tokens[index];
index++;
element = new TmxElement(tag_name);
if (addLineBreaks)
{
element.AddLineBreaks = true;
}
// Read the attributes and values.
while (index < tokens.Count && !Str.IsGT(tokens[index]) && !Str.IsSLGT(tokens[index]))
{
string attribute_name = tokens[index];
index++;
if (index < tokens.Count && Str.IsEQ(tokens[index]))
{
index++;
string attribute_value;
if (index < tokens.Count)
{
attribute_value = tokens[index];
}
else
{
attribute_value = null;
}
index++;
TmxAttribute attribute = new TmxAttribute(attribute_name, attribute_value);
element.Attributes.Add(attribute);
}
else if (index < tokens.Count)
{
// Null-value attribute
TmxAttribute attribute = new TmxAttribute(attribute_name, null);
element.Attributes.Add(attribute);
}
}
nodes.Add(element);
if (index < tokens.Count && Str.IsSLGT(tokens[index]))
{
element.IsTerminated = true;
index++;
element = null;
}
else if (index < tokens.Count && Str.IsGT(tokens[index]))
{
index++;
}
}
else if (Str.IsGT(tokens[index]))
{
index++;
}
else if (Str.IsLTSL(tokens[index]))
{
// Read close tag
index++;
if (index >= tokens.Count)
{
break;
}
string tag_name = tokens[index];
index++;
int open_index = this.FindTagOpenNodeIndex(nodes, tag_name);
if (open_index != -1)
{
this.MoveNodesDown(ref nodes, open_index + 1, (TmxElement)nodes[open_index]);
}
else
{
// Er, there is a close tag without an opening tag!!
}
// Skip to the end of this tag
while (index < tokens.Count && !Str.IsGT(tokens[index]))
{
index++;
}
if (index < tokens.Count && Str.IsGT(tokens[index]))
{
index++;
}
element = null;
}
else
{
// Read text
string value = tokens[index];
if (this.isRemoveEmptyElementText)
{
value = this.RemoveWhitespace(value);
}
value = DecodeScript(value);
if (this.isRemoveEmptyElementText && value.Length == 0)
{
// We do nothing
}
else
{
TmxText node = new TmxText(value);
nodes.Add(node);
}
index++;
}
}
return(nodes);
}
/// <summary>
/// This will search though this collection of nodes for all elements with the
/// specified name. If you want to search the subnodes recursively, you should
/// pass True as the parameter in searchChildren. This search is guaranteed to
/// return nodes in the order in which they are found in the document.
/// </summary>
/// <param name="name">The name of the element to find.</param>
/// <param name="searchChildren">True if you want to search sub-nodes, False to
/// only search this collection.</param>
/// <returns>A collection of all the nodes that match.</returns>
public TmxNodeCollection FindByName(string name, bool searchChildren)
{
TmxNodeCollection results = new TmxNodeCollection(null);
foreach (TmxNode node in this.List)
{
if (node is TmxElement)
{
if (((TmxElement)node).Name.ToLower().Equals(name.ToLower()))
{
results.Add(node);
}
if (searchChildren)
{
foreach (TmxNode matchedChild in ((TmxElement)node).Nodes.FindByName(name, searchChildren))
{
results.Add(matchedChild);
}
}
}
}
return results;
}
