public XElement ConvertToXml(string source)
{
string processed = string.Empty;
HtmlReader reader = new HtmlReader(source);
StringBuilder builder = new StringBuilder();
HtmlWriter writer = new HtmlWriter(builder);
while (!reader.EOF)
writer.WriteNode(reader, true);
//XML hates
processed = Filter(builder.ToString(),true);
XElement result = XElement.Parse(processed);
return result;
}
public static string Parse(HtmlWriter parent, string name, string value, HtmlWriter writer)
{
StringBuilder builder = new StringBuilder();
StyleElement element = GetStyleElement(parent, name, writer);
StringReader reader = new StringReader(value);
System.Collections.Generic.List<string> subElements = new System.Collections.Generic.List<string>();
System.Collections.Generic.List<string> parsedSubElements = new System.Collections.Generic.List<string>();
#region Split elements
bool skipSpaces = false;
bool skipUntilApos = false;
bool skipUntilCloseBracket = false;
int thisInt;
Char thisChar;
while (true)
{
thisInt = reader.Read();
if (thisInt == -1)
{
if (builder.Length > 0)
subElements.Add(builder.ToString());
break;
}
thisChar = Convert.ToChar(thisInt);
if (skipSpaces && thisChar != ' ')
skipSpaces = false;
if (!skipSpaces && thisChar == ',')
skipSpaces = true;
if (skipUntilApos && thisChar == '\'')
skipUntilApos = false;
if (!skipUntilApos && thisChar == '\'')
skipUntilApos = true;
if (skipUntilCloseBracket && thisChar == ')')
skipUntilCloseBracket = false;
if (!skipUntilCloseBracket && thisChar == '(')
skipUntilCloseBracket = true;
if (thisChar == ' ' && !skipSpaces && !skipUntilApos && !skipUntilCloseBracket)
{
if (builder.Length > 0)
subElements.Add(builder.ToString());
builder.Length = 0;
continue;
}
builder.Append(thisChar);
}
#endregion
#region Parse elements
string proposedElement;
string proposedElementLower;
for (int i = 0; i < subElements.Count && parsedSubElements.Count <= element.MaxSubElements; i++)
{
proposedElement = subElements[i].Trim();
proposedElementLower = subElements[i].ToLower().Trim();
#region Text
try
{
if ((element.ValidElementTypes & Types.Text) != 0)
{
if (element.IsValidTextValue(proposedElement.ToLower()))
{
parsedSubElements.Add(proposedElement.ToLower());
continue;
}
}
}
catch { }
#endregion
#region Url
try
{
if ((element.ValidElementTypes & Types.Url) != 0)
{
if (proposedElementLower.StartsWith("url(") && proposedElementLower.EndsWith(")"))
{
string urlUnparsed = proposedElement.Substring(4, proposedElement.Length - 5).Trim();
string surroundChar = "";
if (urlUnparsed.StartsWith("'") && urlUnparsed.EndsWith("'"))
{
urlUnparsed = urlUnparsed.Substring(1, urlUnparsed.Length - 2);
surroundChar = "'";
}
else if (urlUnparsed.StartsWith("\"") && urlUnparsed.EndsWith("\""))
{
urlUnparsed = urlUnparsed.Substring(1, urlUnparsed.Length - 2);
surroundChar = "\"";
}
string url = element.Parent.ParseAttributeUrl(urlUnparsed, false);
if (url.Length > 0)
parsedSubElements.Add("url(" + surroundChar + url + surroundChar + ")");
continue;
}
}
}
catch { }
#endregion
#region Percentage
try
{
if ((element.ValidElementTypes & Types.Percentage) != 0)
{
if (writer.StylePercentageRegex.IsMatch(proposedElement))
{
parsedSubElements.Add(proposedElement);
continue;
}
}
}
catch { }
#endregion
#region Length
try
{
if ((element.ValidElementTypes & Types.Length) != 0)
{
if (writer.StyleLengthRegex.IsMatch(proposedElementLower))
{
parsedSubElements.Add(proposedElementLower);
continue;
}
}
}
catch { }
#endregion
#region Colour
try
{
if ((element.ValidElementTypes & Types.Colour) != 0)
{
if (writer.AttributeColourRegex.IsMatch(proposedElementLower) ||
writer.StyleColourRgbRegex.IsMatch(proposedElementLower) ||
writer.StyleColourNameRegex.IsMatch(proposedElementLower))
{
parsedSubElements.Add(proposedElementLower);
continue;
}
}
}
catch { }
#endregion
#region Integer
try
{
if ((element.ValidElementTypes & Types.Integer) != 0)
{
if (writer.StyleIntegerRegex.IsMatch(proposedElement))
{
parsedSubElements.Add(proposedElement);
continue;
}
}
}
catch { }
#endregion
#region Number
try
{
if ((element.ValidElementTypes & Types.Number) != 0)
{
if (writer.StyleNumberRegex.IsMatch(proposedElement))
{
parsedSubElements.Add(proposedElement);
continue;
}
}
}
catch { }
#endregion
#region Shape
try
{
if ((element.ValidElementTypes & Types.Shape) != 0)
{
if (proposedElementLower.StartsWith("rect(") && proposedElementLower.EndsWith(")"))
{
string coords = proposedElement.Substring(5, proposedElement.Length - 6).Trim();
string[] coordsAry = coords.Split(',');
if (writer.StyleLengthRegex.IsMatch(coordsAry[0].Trim()) &&
writer.StyleLengthRegex.IsMatch(coordsAry[1].Trim()) &&
writer.StyleLengthRegex.IsMatch(coordsAry[2].Trim()) &&
writer.StyleLengthRegex.IsMatch(coordsAry[3].Trim()))
{
parsedSubElements.Add(proposedElementLower);
continue;
}
}
}
}
catch { }
#endregion
#region FontSizeLineHeight
try
{
if ((element.ValidElementTypes & Types.FontSizeLineHeight) != 0)
{
if (proposedElementLower.IndexOf('/') > -1)
{
string fontSize = proposedElementLower.Substring(0, proposedElementLower.IndexOf('/'));
string lineHeight = proposedElementLower.Substring(proposedElementLower.IndexOf('/') + 1);
if ((fontSize.Equals("xx-small") || fontSize.Equals("x-small") || fontSize.Equals("small") || fontSize.Equals("medium") || fontSize.Equals("large") || fontSize.Equals("x-large") || fontSize.Equals("xx-large") || fontSize.Equals("smaller") || fontSize.Equals("larger") || writer.StyleLengthRegex.IsMatch(fontSize) || writer.StylePercentageRegex.IsMatch(fontSize)) &&
(lineHeight.Equals("xx-small") || lineHeight.Equals("x-small") || lineHeight.Equals("small") || lineHeight.Equals("medium") || lineHeight.Equals("large") || lineHeight.Equals("x-large") || lineHeight.Equals("xx-large") || lineHeight.Equals("smaller") || lineHeight.Equals("larger") || writer.StyleNumberRegex.IsMatch(lineHeight) || writer.StyleLengthRegex.IsMatch(lineHeight) || writer.StylePercentageRegex.IsMatch(lineHeight)))
{
parsedSubElements.Add(proposedElementLower);
continue;
}
}
}
}
catch { }
#endregion
#region FontFamily
try
{
if ((element.ValidElementTypes & Types.FontFamily) != 0)
{
string parsedFontFamily = writer.StyleFontFamilyRegex.Replace(proposedElement, String.Empty);
if (parsedFontFamily.Length > 0)
{
parsedSubElements.Add(parsedFontFamily);
continue;
}
}
}
catch { }
#endregion
}
#endregion
#region Build output
builder.Length = 0;
foreach (string parsedElement in parsedSubElements)
{
if (builder.Length > 0)
builder.Append(" ");
builder.Append(parsedElement);
}
return builder.ToString();
#endregion
}
static StyleElement GetStyleElementPrivate(HtmlWriter parent, string name)
{
#region Element definitions
switch (name)
{
//Extra style elements for dsi tags
case "content": return new StyleElement(parent, "text", "icon", "text-under-icon"); // for type=usr, event, venue, place, group, brand
case "details": return new StyleElement(parent, "none", "venue", "place", "country"); // for type=event, venue, place
case "date": return new StyleElement(parent, "false", "true"); // for type=event
case "snip": return new StyleElement(parent, Types.Number); // for type=event
case "rollover": return new StyleElement(parent, "true", "false"); // for type=usr, photo
case "photo": return new StyleElement(parent, "icon", "thumb", "web"); // for type=photo
case "link": return new StyleElement(parent, "true", "false");
case "font-family": return new StyleElement(parent, Types.FontFamily);
case "font-style": return new StyleElement(parent, "normal", "italic");
case "font-variant": return new StyleElement(parent, "normal", "small-caps");
case "font-weight": return new StyleElement(parent, "normal", "bold");
case "font-size": return new StyleElement(parent, Types.Percentage | Types.Length, "xx-large", "x-large", "large", "medium", "small", "x-small", "xx-small", "larger", "smaller");
case "font": return new StyleElement(parent, 5, Types.Percentage | Types.Length | Types.FontSizeLineHeight | Types.FontFamily, "normal", "italic", "normal", "small-caps", "normal", "bold", "xx-large", "x-large", "large", "medium", "small", "x-small", "xx-small", "larger", "smaller");
case "color": return new StyleElement(parent, Types.Colour);
case "background-color": return new StyleElement(parent, Types.Colour, "transparent");
case "background-image": return new StyleElement(parent, Types.Url, "none");
case "background-repeat": return new StyleElement(parent, "repeat", "repeat-x", "repeat-y", "no-repeat");
case "background-attachment": return new StyleElement(parent, "scroll", "fixed");
case "background-position": return new StyleElement(parent, 2, Types.Length | Types.Percentage, "top", "center", "bottom", "left", "right");
case "background": return new StyleElement(parent, 6, Types.Colour | Types.Url | Types.Length | Types.Percentage, "transparent", "none", "repeat", "repeat-x", "repeat-y", "no-repeat", "scroll", "fixed", "top", "center", "bottom", "left", "right");
case "letter-spacing": return new StyleElement(parent, Types.Length, "normal");
case "text-decoration": return new StyleElement(parent, "none", "underline", "overline", "line-through");
case "vertical-align": return new StyleElement(parent, "sub", "super");
case "text-transform": return new StyleElement(parent, "capitalize", "uppercase", "lowercase", "none");
case "text-align": return new StyleElement(parent, "left", "right", "center", "justify");
case "text-indent": return new StyleElement(parent, Types.Length | Types.Percentage);
case "line-height": return new StyleElement(parent, Types.Number | Types.Length | Types.Percentage, "normal");
case "margin-top": return new StyleElement(parent, Types.Length | Types.Percentage, "auto");
case "margin-right": return new StyleElement(parent, Types.Length | Types.Percentage, "auto");
case "margin-bottom": return new StyleElement(parent, Types.Length | Types.Percentage, "auto");
case "margin-left": return new StyleElement(parent, Types.Length | Types.Percentage, "auto");
case "margin": return new StyleElement(parent, 4, Types.Length | Types.Percentage, "auto");
case "padding-top": return new StyleElement(parent, Types.Length | Types.Percentage);
case "padding-right": return new StyleElement(parent, Types.Length | Types.Percentage);
case "padding-bottom": return new StyleElement(parent, Types.Length | Types.Percentage);
case "padding-left": return new StyleElement(parent, Types.Length | Types.Percentage);
case "padding": return new StyleElement(parent, 4, Types.Length | Types.Percentage);
case "border-top-width": return new StyleElement(parent, Types.Length, "thin", "medium", "thick");
case "border-right-width": return new StyleElement(parent, Types.Length, "thin", "medium", "thick");
case "border-bottom-width": return new StyleElement(parent, Types.Length, "thin", "medium", "thick");
case "border-left-width": return new StyleElement(parent, Types.Length, "thin", "medium", "thick");
case "border-width": return new StyleElement(parent, 4, Types.Length, "thin", "medium", "thick");
case "border-top-color": return new StyleElement(parent, Types.Colour);
case "border-right-color": return new StyleElement(parent, Types.Colour);
case "border-bottom-color": return new StyleElement(parent, Types.Colour);
case "border-left-color": return new StyleElement(parent, Types.Colour);
case "border-color": return new StyleElement(parent, 4, Types.Colour);
case "border-top-style": return new StyleElement(parent, "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-right-style": return new StyleElement(parent, "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-bottom-style": return new StyleElement(parent, "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-left-style": return new StyleElement(parent, "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-style": return new StyleElement(parent, "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-top": return new StyleElement(parent, 3, Types.Length | Types.Colour, "thin", "medium", "thick", "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-right": return new StyleElement(parent, 3, Types.Length | Types.Colour, "thin", "medium", "thick", "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-bottom": return new StyleElement(parent, 3, Types.Length | Types.Colour, "thin", "medium", "thick", "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border-left": return new StyleElement(parent, 3, Types.Length | Types.Colour, "thin", "medium", "thick", "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "border": return new StyleElement(parent, 3, Types.Length | Types.Colour, "thin", "medium", "thick", "none", "solid", "double", "groove", "ridge", "inset", "outset");
case "float": return new StyleElement(parent, "none", "left", "right");
case "clear": return new StyleElement(parent, "none", "left", "right", "both");
case "display": return new StyleElement(parent, "none", "block", "inline", "list-item");
case "list-style-type": return new StyleElement(parent, "disk", "circle", "square", "decimal", "lower-roman", "upper-roman", "lower-alpha", "upper-alpha", "none");
case "list-style-image": return new StyleElement(parent, Types.Url, "none");
case "list-style-position": return new StyleElement(parent, "inside", "outside");
case "list-style": return new StyleElement(parent, 3, Types.Url, "disk", "circle", "square", "decimal", "lower-roman", "upper-roman", "lower-alpha", "upper-alpha", "none", "inside", "outside");
case "clip": return new StyleElement(parent, Types.Shape, "auto");
case "height": return new StyleElement(parent, Types.Length, "auto");
case "left": return null;// return new StyleElement(parent, Types.Length | Types.Percentage, "auto"); REMOVED
case "overflow": return new StyleElement(parent, "visible", "hidden", "scroll", "auto");
case "position": return null; // return new StyleElement(parent, "absolute", "relative", "static"); REMOVED
case "top": return null;// return new StyleElement(parent, Types.Length | Types.Percentage, "auto"); REMOVED
case "visibility": return new StyleElement(parent, "visible", "hidden", "inherit");
case "width": return new StyleElement(parent, Types.Length | Types.Percentage, "auto");
case "z-index": return new StyleElement(parent, Types.Integer, "auto");
case "page-break-before": return new StyleElement(parent, 2, "auto", "always", "left", "right");
case "page-break-after": return new StyleElement(parent, 2, "auto", "always", "left", "right");
case "cursor": return new StyleElement(parent, "auto", "crosshair", "default", "hand", "move", "e-resize", "ne-resize", "nw-resize", "n-resize", "se-resize", "sw-resize", "s-resize", "w-resize", "text", "wait", "help");
default: return null;
}
#endregion
}
public static StyleElement GetStyleElement(HtmlWriter parent, string name, HtmlWriter writer)
{
#region Get from definition cache
if (!writer.StyleElementCache.ContainsKey(name))
writer.StyleElementCache[name] = GetStyleElementPrivate(parent, name);
return writer.StyleElementCache[name];
#endregion
}
public StyleElement(
HtmlWriter parent,
Types validElementTypes,
params string[] validTextValues)
{
Parent = parent;
MaxSubElements = 1;
ValidElementTypes = validElementTypes | Types.Text;
ValidTextValues = validTextValues;
}
public StyleElement(
HtmlWriter parent,
int maxSubElements,
Types validElementTypes)
{
Parent = parent;
MaxSubElements = maxSubElements;
ValidElementTypes = validElementTypes;
ValidTextValues = new string[] { };
}
public StyleElement(
HtmlWriter parent,
int maxSubElements,
params string[] validTextValues)
{
Parent = parent;
ValidTextValues = validTextValues;
MaxSubElements = maxSubElements;
ValidElementTypes = Types.Text;
}