public CssNode(CssNodeType type, CssNode parent, string text)
{
Type = type;
Parent = parent;
TextBuilder = new StringBuilder(text);
}
internal static CssNode GetAst(string cssDocument)
{
var doc = new CssNode(CssNodeType.Document, null, "");
var currentNode = doc;
var tokens = Tokenize(cssDocument).ToList();
for (var i = 0; i < tokens.Count;)
{
var t = tokens[i++];
CssNode n;
switch (t.Type)
{
case CssTokenType.At:
if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.NamespaceDeclaration, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.Identifier:
if (currentNode.Type == CssNodeType.NamespaceDeclaration)
{
n = new CssNode(CssNodeType.NamespaceKeyword, currentNode, "@" + t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceKeyword)
{
currentNode = currentNode.Parent;
n = new CssNode(CssNodeType.NamespaceAlias, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Selectors)
{
n = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(n);
var fragment = new CssNode(CssNodeType.SelectorFragment, n, t.Text);
n.Children.Add(fragment);
currentNode = fragment;
}
else if (currentNode.Type == CssNodeType.Selector)
{
n = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.StyleDeclarationBlock)
{
n = new CssNode(CssNodeType.StyleDeclaration, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
n = new CssNode(CssNodeType.Key, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.StyleRule, currentNode, "");
var selectors = new CssNode(CssNodeType.Selectors, n, "");
n.Children.Add(selectors);
currentNode.Children.Add(n);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.DoubleQuotes:
if (currentNode.Type == CssNodeType.NamespaceKeyword)
{
currentNode = currentNode.Parent;
currentNode.Children.Add(new CssNode(CssNodeType.NamespaceAlias, currentNode, ""));
n = new CssNode(CssNodeType.NamespaceValue, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceAlias)
{
currentNode = currentNode.Parent;
n = new CssNode(CssNodeType.NamespaceValue, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
n = new CssNode(CssNodeType.Value, currentNode.Parent, "");
currentNode.Children.Add(n);
currentNode = n;
}
if (currentNode.Type == CssNodeType.Value)
{
n = new CssNode(CssNodeType.DoubleQuoteText, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText)
{
currentNode = currentNode.Parent;
}
break;
case CssTokenType.SingleQuotes:
if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
n = new CssNode(CssNodeType.Value, currentNode.Parent, "");
currentNode.Children.Add(n);
currentNode = n;
}
if (currentNode.Type == CssNodeType.Value)
{
n = new CssNode(CssNodeType.SingleQuoteText, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode = currentNode.Parent;
}
break;
case CssTokenType.Colon:
if (currentNode.Type == CssNodeType.Key)
{
currentNode = currentNode.Parent;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.Semicolon:
if (currentNode.Type == CssNodeType.Value)
{
currentNode = currentNode.Parent;
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode = currentNode.Parent;
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
currentNode = currentNode.Parent;
break;
case CssTokenType.Dot:
if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.StyleRule, currentNode, "");
var selectors = new CssNode(CssNodeType.Selectors, n, "");
n.Children.Add(selectors);
currentNode.Children.Add(n);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.NamespaceAlias)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Selectors)
{
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
currentNode.Children.Add(new CssNode(CssNodeType.SelectorFragment, currentNode, "." + tokens[i++].Text));
}
else if (currentNode.Type == CssNodeType.Selector)
{
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, ".");
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Key)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.Hash:
if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.StyleRule, currentNode, "");
var selectors = new CssNode(CssNodeType.Selectors, n, "");
n.Children.Add(selectors);
currentNode.Children.Add(n);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.Selectors)
{
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.Selector)
{
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, ".");
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.AngleBraketClose:
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selector)
{
currentNode.Children.Add(new CssNode(CssNodeType.SelectorFragment, currentNode, ">"));
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.ParenthesisOpen:
case CssTokenType.ParenthesisClose:
if (currentNode.Type == CssNodeType.Value)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.Comma:
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selector)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Value)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.Pipe:
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Key)
{
currentNode.Text.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
break;
case CssTokenType.BraceOpen:
currentNode.Text = new StringBuilder(currentNode.Text.ToString().Trim());
if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
else
{
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selector)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selectors)
{
currentNode = currentNode.Parent;
}
n = new CssNode(CssNodeType.StyleDeclarationBlock, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
break;
case CssTokenType.BraceClose:
if (currentNode.Type == CssNodeType.Value)
{
currentNode.Text.Append(t.Text);
currentNode = currentNode.Parent;
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText ||
currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode.Text.Append(t.Text);
}
else
{
currentNode = currentNode.Parent.Parent;
}
break;
case CssTokenType.Whitespace:
currentNode.Text.Append(t.Text);
break;
}
}
return(doc);
}
private static List <string> GetSelectorStringsFromSelectorsCssNode(CssNode selectors)
{
return(selectors.Children
.Select(x => string.Join(" ", x.Children /* selector-fragment */.Select(y => y.Text)))
.ToList());
}
internal static CssNode GetAst(string cssDocument)
{
var doc = new CssNode(CssNodeType.Document, null, "");
var currentNode = doc;
var tokens = Tokenizer.Tokenize(cssDocument).ToList();
for (var i = 0; i < tokens.Count; i++)
{
var t = tokens[i];
CssNode n;
switch (t.Type)
{
case CssTokenType.At:
if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.NamespaceDeclaration, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Value ||
currentNode.Type == CssNodeType.VariableValue)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.Dollar:
if (currentNode.Type == CssNodeType.Document ||
currentNode.Type == CssNodeType.StyleDeclarationBlock)
{
n = new CssNode(CssNodeType.VariableDeclaration, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
n = new CssNode(CssNodeType.VariableName, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Value)
{
n = new CssNode(CssNodeType.VariableReference, currentNode, "$");
currentNode.Children.Add(n);
currentNode = n;
}
break;
case CssTokenType.Identifier:
if (currentNode.Type == CssNodeType.VariableName)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.VariableValue)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.VariableReference)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.NamespaceDeclaration)
{
n = new CssNode(CssNodeType.NamespaceKeyword, currentNode, "@" + t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceKeyword)
{
currentNode = currentNode.Parent;
n = new CssNode(CssNodeType.NamespaceAlias, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Selectors)
{
n = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(n);
var fragment = new CssNode(CssNodeType.SelectorFragment, n, t.Text);
n.Children.Add(fragment);
currentNode = fragment;
}
else if (currentNode.Type == CssNodeType.Selector)
{
n = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.StyleDeclarationBlock)
{
n = new CssNode(CssNodeType.StyleDeclaration, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
n = new CssNode(CssNodeType.Key, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.StyleRule, currentNode, "");
var selectors = new CssNode(CssNodeType.Selectors, n, "");
n.Children.Add(selectors);
currentNode.Children.Add(n);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
break;
case CssTokenType.DoubleQuotes:
if (currentNode.Type == CssNodeType.NamespaceKeyword)
{
currentNode = currentNode.Parent;
currentNode.Children.Add(new CssNode(CssNodeType.NamespaceAlias, currentNode, ""));
n = new CssNode(CssNodeType.NamespaceValue, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceAlias)
{
currentNode = currentNode.Parent;
n = new CssNode(CssNodeType.NamespaceValue, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
n = new CssNode(CssNodeType.Value, currentNode.Parent, "");
currentNode.Children.Add(n);
currentNode = n;
}
if (currentNode.Type == CssNodeType.Value)
{
n = new CssNode(CssNodeType.DoubleQuoteText, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
i++;
do
{
if (tokens[i].Type == CssTokenType.Backslash)
{
i++;
currentNode.TextBuilder.Append(tokens[i].Text);
}
else if (tokens[i].Type == CssTokenType.DoubleQuotes)
{
currentNode = currentNode.Parent;
break;
}
else
{
currentNode.TextBuilder.Append(tokens[i].Text);
}
i++;
} while (i < tokens.Count);
}
else if (currentNode.Type == CssNodeType.VariableValue)
{
i++;
do
{
if (tokens[i].Type == CssTokenType.Backslash)
{
i++;
currentNode.TextBuilder.Append(tokens[i].Text);
}
else if (tokens[i].Type == CssTokenType.DoubleQuotes)
{
currentNode = currentNode.Parent;
break;
}
else
{
currentNode.TextBuilder.Append(tokens[i].Text);
}
i++;
} while (i < tokens.Count);
}
else if (currentNode.Type == CssNodeType.DoubleQuoteText)
{
currentNode = currentNode.Parent;
}
break;
case CssTokenType.SingleQuotes:
if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
n = new CssNode(CssNodeType.Value, currentNode.Parent, "");
currentNode.Children.Add(n);
currentNode = n;
}
if (currentNode.Type == CssNodeType.Value)
{
n = new CssNode(CssNodeType.SingleQuoteText, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
i++;
do
{
if (tokens[i].Type == CssTokenType.Backslash)
{
i++;
currentNode.TextBuilder.Append(tokens[i].Text);
}
else if (tokens[i].Type == CssTokenType.SingleQuotes)
{
currentNode = currentNode.Parent;
break;
}
else
{
currentNode.TextBuilder.Append(tokens[i].Text);
}
i++;
} while (i < tokens.Count);
}
else if (currentNode.Type == CssNodeType.SingleQuoteText)
{
currentNode = currentNode.Parent;
}
break;
case CssTokenType.Colon:
if (currentNode.Type == CssNodeType.VariableName)
{
currentNode = currentNode.Parent;
n = new CssNode(CssNodeType.VariableValue, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Key)
{
var nextToken = FirstTokenTypeOf(tokens, i, new[] { CssTokenType.Semicolon, CssTokenType.DoubleQuotes, CssTokenType.BraceOpen });
// normal value
if (nextToken == CssTokenType.Semicolon ||
nextToken == CssTokenType.DoubleQuotes)
{
currentNode = currentNode.Parent;
n = new CssNode(CssNodeType.Value, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
i++;
while (t.Type == CssTokenType.Whitespace)
{
i++;
t = tokens[i];
}
}
else // selector
{
currentNode.TextBuilder.Append(t.Text);
}
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.Semicolon:
if (currentNode.Type == CssNodeType.VariableReference)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Value)
{
currentNode = currentNode.Parent;
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode = currentNode.Parent;
}
else if (currentNode.Type == CssNodeType.VariableValue)
{
currentNode = currentNode.Parent;
}
currentNode = currentNode.Parent;
break;
case CssTokenType.Dot:
if (currentNode.Type == CssNodeType.Document ||
currentNode.Type == CssNodeType.StyleDeclarationBlock)
{
n = new CssNode(CssNodeType.StyleRule, currentNode, "");
var selectors = new CssNode(CssNodeType.Selectors, n, "");
n.Children.Add(selectors);
currentNode.Children.Add(n);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.NamespaceAlias)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Selectors)
{
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, selector, tokens[i].Text);
selector.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.Selector)
{
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, ".");
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Key)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.Hash:
if (currentNode.Type == CssNodeType.Document)
{
n = new CssNode(CssNodeType.StyleRule, currentNode, "");
var selectors = new CssNode(CssNodeType.Selectors, n, "");
n.Children.Add(selectors);
currentNode.Children.Add(n);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.Selectors)
{
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, t.Text);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.Selector)
{
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, ".");
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.VariableValue)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.AngleBraketClose:
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selector)
{
currentNode.Children.Add(new CssNode(CssNodeType.SelectorFragment, currentNode, ">"));
}
break;
case CssTokenType.ParenthesisOpen:
case CssTokenType.ParenthesisClose:
if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Key) // selector
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.Comma:
if (currentNode.Type == CssNodeType.Key)
{
var keyValue = currentNode.Text;
var styleDeclaration = currentNode.Parent;
styleDeclaration.Children.Remove(currentNode);
var subRule = styleDeclaration;
subRule.Type = CssNodeType.StyleRule;
var selectors = new CssNode(CssNodeType.Selectors, subRule, "");
subRule.Children.Add(selectors);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, keyValue);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selector)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.NamespaceValue)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.Pipe:
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode.TextBuilder.Append(t.Text);
}
else if (currentNode.Type == CssNodeType.Key)
{
currentNode.TextBuilder.Append(t.Text);
}
break;
case CssTokenType.BraceOpen:
if (currentNode.Type == CssNodeType.Key)
{
var keyValue = currentNode.Text;
var styleDeclaration = currentNode.Parent;
styleDeclaration.Children.Remove(currentNode);
var subRule = styleDeclaration;
subRule.Type = CssNodeType.StyleRule;
var selectors = new CssNode(CssNodeType.Selectors, subRule, "");
subRule.Children.Add(selectors);
currentNode = selectors;
var selector = new CssNode(CssNodeType.Selector, currentNode, "");
currentNode.Children.Add(selector);
currentNode = selector;
var selectorFragment = new CssNode(CssNodeType.SelectorFragment, currentNode, keyValue);
currentNode.Children.Add(selectorFragment);
currentNode = selectorFragment;
}
currentNode.TextBuilder = new StringBuilder(currentNode.TextBuilder.ToString().Trim());
if (currentNode.Type == CssNodeType.StyleDeclaration)
{
n = new CssNode(CssNodeType.Value, currentNode, t.Text);
currentNode.Children.Add(n);
currentNode = n;
}
else if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
}
else
{
if (currentNode.Type == CssNodeType.SelectorFragment)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selector)
{
currentNode = currentNode.Parent;
}
if (currentNode.Type == CssNodeType.Selectors)
{
currentNode = currentNode.Parent;
}
n = new CssNode(CssNodeType.StyleDeclarationBlock, currentNode, "");
currentNode.Children.Add(n);
currentNode = n;
}
break;
case CssTokenType.BraceClose:
if (currentNode.Type == CssNodeType.Value)
{
currentNode.TextBuilder.Append(t.Text);
currentNode = currentNode.Parent;
}
else
{
currentNode = currentNode.Parent.Parent;
}
break;
case CssTokenType.Whitespace:
currentNode.TextBuilder.Append(t.Text);
break;
}
}
return(doc);
}