/// <summary>
/// </summary>
private static Node FromCGML_Legacy(string str)
{
if (string.IsNullOrEmpty(str))
{
return(null);
}
Node root = null;
bool inString = false;
bool wasInString = false;
bool inNode = false;
bool inValue = false;
bool inKey = false;
bool inAttribute = false;
char lastChar = (char)0;
Node thisNode = null;
StringBuilder thisKey = new StringBuilder();
StringBuilder thisValue = null;
for (int i = 0; i <= str.Length; i++)
{
if (i < str.Length)
{
char c = str[i];
char nextChar = i < str.Length - 1 ? str[i + 1] : (char)0;
if (inString)
{
if (c != CGML.STRING_BEGIN_END || (str[i - 1] == '\\' && str[i - 2] != '\\'))
{
thisValue.Append(c);
}
else
{
inString = false;
wasInString = true;
}
}
else
{
Node newNode = null;
if (wasInString)
{
if (inNode)
{
if (inAttribute)
{
thisNode.Attributes.Set(new Attribute(thisKey.ToString(), thisValue.ToString()));
thisValue = null;
inAttribute = false;
}
}
}
switch (c)
{
// Ignore newlines
case '\n':
break;
// Ignore carriage return
case '\r':
break;
// Ignore tabs
case '\t':
break;
case CGML.NODE_BEGIN:
inNode = true;
inKey = true;
thisKey = new StringBuilder();
break;
case CGML.NODE_END:
newNode = new Node(thisKey.ToString());
inNode = false;
inKey = false;
inValue = false;
inAttribute = false;
break;
case CGML.NODE_ENDMARK:
thisNode = thisNode.Parent;
break;
case CGML.STRING_BEGIN_END:
inString = true;
thisValue = new StringBuilder();
break;
case CGML.NODE_VALUE_BEGIN:
inKey = false;
inValue = true;
break;
case CGML.NODE_VALUE_END:
inValue = false;
break;
case CGML.EQUAL_OPERATOR:
inValue = true;
break;
case ' ':
inKey = false;
inAttribute = true;
break;
case (char)0:
throw new System.Exception("[CGML] Could not parse string");
default:
if (inNode)
{
if (inKey)
{
thisKey.Append(c);
}
else if (inValue)
{
thisValue.Append(c);
}
}
break;
}
wasInString = false;
if (newNode != null)
{
if (root == null)
{
root = newNode;
}
else
{
thisNode.Push(newNode);
}
thisNode = newNode;
}
}
lastChar = c;
}
}
return(root);
}
// TODO: add comments (ez)
// <! this is a comment !>
/// <summary>
/// </summary>
private static Node FromCGML_0_4_0(string str)
{
if (string.IsNullOrEmpty(str))
{
return(null);
}
Node root = null;
ReadElement elementType = ReadElement.None;
bool reading = false;
ReadScope scope = ReadScope.Default;
Node thisNode = null;
StringBuilder element = new StringBuilder();
char lastChar = (char)0;
Func <string> commitElement = new Func <string>(() =>
{
string s = element.ToString();
element.Clear();
return(s);
});
Action commitNodeKey = new Action(() =>
{
Node newNode = new Node(commitElement());
if (root == null)
{
root = newNode;
}
else
{
thisNode.Push(newNode);
}
thisNode = newNode;
});
Action commitAttributeKey = new Action(() =>
{
thisNode.Attributes.Set(new Attribute(commitElement()));
elementType = ReadElement.None;
});
Action commitValue = new Action(() =>
{
switch (scope)
{
case ReadScope.Node:
{
thisNode.Value = commitElement();
break;
}
case ReadScope.Attribute:
{
thisNode.Attributes[thisNode.Attributes.Count - 1].Value = commitElement();
break;
}
}
elementType = ReadElement.None;
});
for (int i = 0; i < str.Length; i++)
{
if (i < str.Length)
{
char c = str[i];
char nextChar = i < str.Length - 1 ? str[i + 1] : (char)0;
if (reading)
{
switch (c)
{
case CGML.STRING_BEGIN_END:
{
if (lastChar == '\\')
{
break;
}
commitValue();
reading = false;
break;
}
default:
{
element.Append(c);
break;
}
}
}
else
{
switch (c)
{
// Ignore newlines
case '\n':
break;
// Ignore carriage return
case '\r':
break;
// Ignore tabs
case '\t':
break;
case CGML.NODE_BEGIN:
{
scope = ReadScope.Node;
elementType = ReadElement.Key;
break;
}
case CGML.NODE_END:
{
scope = ReadScope.Default;
elementType = ReadElement.None;
break;
}
case CGML.STRING_BEGIN_END:
{
elementType = ReadElement.Value;
reading = true;
break;
}
case CGML.EQUAL_OPERATOR:
{
if (elementType == ReadElement.Key && scope == ReadScope.Attribute)
{
commitAttributeKey();
break;
}
break;
}
case ' ':
{
scope = ReadScope.Attribute;
elementType = ReadElement.Key;
break;
}
case CGML.NODE_ENDMARK:
{
thisNode = thisNode.Parent;
break;
}
default:
{
if (elementType != ReadElement.None)
{
element.Append(c);
}
break;
}
}
}
if (scope == ReadScope.Node && elementType == ReadElement.Key)
{
if (nextChar == CGML.NODE_END || nextChar == CGML.EQUAL_OPERATOR || nextChar == ' ')
{
commitNodeKey();
}
}
lastChar = c;
}
}
return(root);
}