/// <summary>
/// Parses a Knockout begin containerless comment
/// </summary>
/// <param name="commentText">Comment text</param>
/// <param name="expressionHandler">Binding expression handler</param>
public static void ParseBeginContainerlessComment(string commentText,
ExpressionDelegate expressionHandler)
{
Match koBeginContainerlessCommentMatch = _koBeginContainerlessCommentRegex.Match(commentText);
if (koBeginContainerlessCommentMatch.Success)
{
var innerContext = new InnerMarkupParsingContext(commentText);
var context = new MarkupParsingContext(innerContext);
Group expressionGroup = koBeginContainerlessCommentMatch.Groups["expression"];
int expressionPosition = expressionGroup.Index;
string expression = expressionGroup.Value.TrimEnd();
innerContext.IncreasePosition(expressionPosition);
if (expressionHandler != null)
{
expressionHandler(context, expression);
}
}
}
/// <summary>
/// Parses XML content
/// </summary>
/// <param name="content">XML content</param>
public void Parse(string content)
{
int contentLength = content.Length;
if (contentLength == 0)
{
return;
}
lock (_parsingSynchronizer)
{
_innerContext = new InnerMarkupParsingContext(content);
_context = new MarkupParsingContext(_innerContext);
int endPosition = contentLength - 1;
int previousPosition = -1;
try
{
while (_innerContext.Position <= endPosition)
{
bool isProcessed = false;
int firstCharPosition = _innerContext.Position;
char firstCharValue;
bool firstCharExist = content.TryGetChar(firstCharPosition, out firstCharValue);
if (firstCharExist && firstCharValue == '<')
{
int secondCharPosition = firstCharPosition + 1;
char secondCharValue;
bool secondCharExist = content.TryGetChar(secondCharPosition, out secondCharValue);
if (secondCharExist)
{
if (IsTagFirstChar(secondCharValue))
{
// Start tag
isProcessed = ProcessStartTag();
}
else
{
int thirdCharPosition = secondCharPosition + 1;
char thirdCharValue;
bool thirdCharExist = content.TryGetChar(thirdCharPosition, out thirdCharValue);
if (thirdCharExist)
{
switch (secondCharValue)
{
case '/':
if (IsTagFirstChar(thirdCharValue))
{
// End tag
isProcessed = ProcessEndTag();
}
break;
case '!':
switch (thirdCharValue)
{
case '-':
int fourthCharPosition = thirdCharPosition + 1;
char fourthCharValue;
bool fourthCharExist = content.TryGetChar(
fourthCharPosition, out fourthCharValue);
if (fourthCharExist && fourthCharValue == '-')
{
// XML comments
isProcessed = ProcessComment();
}
break;
case '[':
// CDATA sections
isProcessed = ProcessCdataSection();
break;
case 'D':
case 'd':
// Doctype declaration
isProcessed = ProcessDoctype();
break;
}
break;
case '?':
// XML declaration and processing instructions
isProcessed = ProcessProcessingInstruction();
break;
}
}
}
}
}
if (!isProcessed)
{
// Text
ProcessText();
}
if (_innerContext.Position == previousPosition)
{
throw new MarkupParsingException(
string.Format(Strings.ErrorMessage_MarkupParsingFailed, "XML"),
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
previousPosition = _innerContext.Position;
}
// Check whether there were not closed tags
if (_tagStack.Count > 0)
{
StackedXmlTag stackedTag = _tagStack.Pop();
throw new MarkupParsingException(
string.Format(Strings.ErrorMessage_NotClosedTag, stackedTag.Name),
stackedTag.Coordinates,
SourceCodeNavigator.GetSourceFragment(_innerContext.SourceCode, stackedTag.Coordinates));
}
}
catch (MarkupParsingException)
{
throw;
}
finally
{
_tagStack.Clear();
_context = null;
_innerContext = null;
}
}
}
/// <summary>
/// Parses a Angular comment directive
/// </summary>
/// <param name="commentText">Comment text</param>
/// <param name="directiveNameHandler">Directive name handler</param>
/// <param name="expressionHandler">Binding expression handler</param>
public static void ParseCommentDirective(string commentText, DirectiveNameDelegate directiveNameHandler,
ExpressionDelegate expressionHandler)
{
Match ngCommentDirectiveMatch = _ngCommentDirectiveRegex.Match(commentText);
if (ngCommentDirectiveMatch.Success)
{
var innerContext = new InnerMarkupParsingContext(commentText);
var context = new MarkupParsingContext(innerContext);
GroupCollection groups = ngCommentDirectiveMatch.Groups;
Group directiveNameGroup = groups["directiveName"];
int directiveNamePosition = directiveNameGroup.Index;
string originalDirectiveName = directiveNameGroup.Value;
string normalizedDirectiveName = NormalizeDirectiveName(originalDirectiveName);
innerContext.IncreasePosition(directiveNamePosition);
if (directiveNameHandler != null)
{
directiveNameHandler(context, originalDirectiveName, normalizedDirectiveName);
}
Group expressionGroup = groups["expression"];
if (expressionGroup.Success)
{
int expressionPosition = expressionGroup.Index;
string expression = expressionGroup.Value.Trim();
innerContext.IncreasePosition(expressionPosition - directiveNamePosition);
if (expressionHandler != null)
{
expressionHandler(context, expression);
}
}
}
}
/// <summary>
/// Parses a Angular class directive
/// </summary>
/// <param name="className">Class name</param>
/// <param name="directiveNameHandler">Directive name handler</param>
/// <param name="expressionHandler">Binding expression handler</param>
/// <param name="semicolonHandler">Semicolon handler</param>
public static void ParseClassDirective(string className, DirectiveNameDelegate directiveNameHandler,
ExpressionDelegate expressionHandler, SemicolonDelegate semicolonHandler)
{
MatchCollection ngClassDirectiveMatches = _ngClassDirectiveRegex.Matches(className);
if (ngClassDirectiveMatches.Count > 0)
{
var innerContext = new InnerMarkupParsingContext(className);
var context = new MarkupParsingContext(innerContext);
int currentPosition = 0;
foreach (Match ngClassDirectiveMatch in ngClassDirectiveMatches)
{
GroupCollection groups = ngClassDirectiveMatch.Groups;
Group directiveNameGroup = groups["directiveName"];
int directiveNamePosition = directiveNameGroup.Index;
string originalDirectiveName = directiveNameGroup.Value;
string normalizedDirectiveName = NormalizeDirectiveName(originalDirectiveName);
innerContext.IncreasePosition(directiveNamePosition - currentPosition);
currentPosition = directiveNamePosition;
if (directiveNameHandler != null)
{
directiveNameHandler(context, originalDirectiveName, normalizedDirectiveName);
}
Group expressionGroup = groups["expression"];
if (expressionGroup.Success)
{
int expressionPosition = expressionGroup.Index;
string expression = expressionGroup.Value.Trim();
innerContext.IncreasePosition(expressionPosition - currentPosition);
currentPosition = expressionPosition;
if (expressionHandler != null)
{
expressionHandler(context, expression);
}
}
Group semicolonGroup = groups["semicolon"];
if (semicolonGroup.Success)
{
int semicolonPosition = semicolonGroup.Index;
innerContext.IncreasePosition(semicolonPosition - currentPosition);
currentPosition = semicolonPosition;
if (semicolonHandler != null)
{
semicolonHandler(context);
}
}
}
}
}
/// <summary>
/// Constructs instance of markup parsing context
/// </summary>
/// <param name="innerContext">Inner markup parsing context</param>
internal MarkupParsingContext(InnerMarkupParsingContext innerContext)
{
_innerContext = innerContext;
}
/// <summary>
/// Parses HTML content
/// </summary>
/// <param name="content">HTML content</param>
public void Parse(string content)
{
int contentLength = content.Length;
if (contentLength == 0)
{
return;
}
lock (_parsingSynchronizer)
{
_innerContext = new InnerMarkupParsingContext(content);
_context = new MarkupParsingContext(_innerContext);
int endPosition = contentLength - 1;
int previousPosition = -1;
try
{
while (_innerContext.Position <= endPosition)
{
bool isProcessed = false;
HtmlTag lastStackedTag = _tagStack.LastOrDefault();
// Make sure we're not in a tag, that contains embedded code
if (lastStackedTag == null || !lastStackedTag.Flags.HasFlag(HtmlTagFlags.EmbeddedCode))
{
int firstCharPosition = _innerContext.Position;
char firstCharValue;
bool firstCharExist = content.TryGetChar(firstCharPosition, out firstCharValue);
if (firstCharExist && firstCharValue == '<')
{
int secondCharPosition = firstCharPosition + 1;
char secondCharValue;
bool secondCharExist = content.TryGetChar(secondCharPosition, out secondCharValue);
if (secondCharExist)
{
if (secondCharValue.IsAlphaNumeric())
{
// Start tag
isProcessed = ProcessStartTag();
}
else
{
int thirdCharPosition = secondCharPosition + 1;
char thirdCharValue;
bool thirdCharExist = content.TryGetChar(thirdCharPosition, out thirdCharValue);
if (thirdCharExist)
{
switch (secondCharValue)
{
case '/':
if (thirdCharValue.IsAlphaNumeric())
{
isProcessed = ProcessEndTag();
}
break;
case '!':
switch (thirdCharValue)
{
case '-':
int fourthCharPosition = thirdCharPosition + 1;
char fourthCharValue;
bool fourthCharExist = content.TryGetChar(fourthCharPosition, out fourthCharValue);
if (fourthCharExist && fourthCharValue == '-')
{
// Comments
int fifthCharPosition = fourthCharPosition + 1;
char fifthCharValue;
bool fifthCharExist = content.TryGetChar(fifthCharPosition, out fifthCharValue);
if (fifthCharExist)
{
if (fifthCharValue == '[')
{
// Revealed validating If conditional comments
// (e.g. <!--[if ... ]><!--> or <!--[if ... ]>-->)
isProcessed = ProcessRevealedValidatingIfComment();
if (!isProcessed)
{
// Hidden If conditional comments (e.g. <!--[if ... ]>)
isProcessed = ProcessHiddenIfComment();
}
}
else
{
// Revealed validating End If conditional comments
// (e.g. <!--<![endif]-->)
isProcessed = ProcessRevealedValidatingEndIfComment();
}
}
if (!isProcessed)
{
// HTML comments
isProcessed = ProcessComment();
}
}
break;
case '[':
// Remaining conditional comments
// Hidden End If conditional comment (e.g. <![endif]-->)
isProcessed = ProcessHiddenEndIfComment();
if (!isProcessed)
{
// Revealed If conditional comment (e.g. <![if ... ]>)
isProcessed = ProcessRevealedIfComment();
}
if (!isProcessed)
{
// Revealed End If conditional comment (e.g. <![endif]>)
isProcessed = ProcessRevealedEndIfComment();
}
break;
case 'D':
case 'd':
// Doctype declaration
isProcessed = ProcessDoctype();
break;
}
break;
case '?':
// XML declaration
isProcessed = ProcessXmlDeclaration();
break;
}
}
}
}
}
if (!isProcessed)
{
// Text
ProcessText();
}
}
else
{
// Embedded code
ProcessEmbeddedCode();
}
if (_innerContext.Position == previousPosition)
{
throw new MarkupParsingException(
string.Format(Strings.ErrorMessage_MarkupParsingFailed, "HTML"),
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
previousPosition = _innerContext.Position;
}
// Clean up any remaining tags
ParseEndTag();
// Check whether there were not closed conditional comment
if (_conditionalCommentStack.Count > 0)
{
throw new MarkupParsingException(
Strings.ErrorMessage_NotClosedConditionalComment,
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
}
catch (MarkupParsingException)
{
throw;
}
finally
{
_tagStack.Clear();
_htmlTagFlagsCache.Clear();
_customHtmlTagFlagsCache.Clear();
_conditionalCommentStack.Clear();
_conditionalCommentOpened = false;
_xmlTagStack.Clear();
_context = null;
_innerContext = null;
}
}
}
/// <summary>
/// Parses XML content
/// </summary>
/// <param name="content">XML content</param>
public void Parse(string content)
{
int contentLength = content.Length;
if (contentLength == 0)
{
return;
}
lock (_parsingSynchronizer)
{
_innerContext = new InnerMarkupParsingContext(content);
_context = new MarkupParsingContext(_innerContext);
_tagStack = new Stack<StackedXmlTag>();
int endPosition = contentLength - 1;
int previousPosition = -1;
try
{
while (_innerContext.Position <= endPosition)
{
bool isProcessed = false;
if (content.CustomStartsWith("<", _innerContext.Position, StringComparison.Ordinal))
{
if (content.CustomStartsWith("</", _innerContext.Position, StringComparison.Ordinal))
{
// End tag
isProcessed = ProcessEndTag();
}
else if (content.CustomStartsWith("<!", _innerContext.Position, StringComparison.Ordinal))
{
// XML comments
isProcessed = ProcessComment();
if (!isProcessed)
{
// CDATA sections
isProcessed = ProcessCdataSection();
}
if (!isProcessed)
{
// Doctype declaration
isProcessed = ProcessDoctype();
}
}
else if (content.CustomStartsWith("<?", _innerContext.Position, StringComparison.Ordinal))
{
// XML declaration and processing instructions
isProcessed = ProcessProcessingInstruction();
}
else
{
// Start tag
isProcessed = ProcessStartTag();
}
}
if (!isProcessed)
{
// Text
ProcessText();
}
if (_innerContext.Position == previousPosition)
{
throw new XmlParsingException(
string.Format(Strings.ErrorMessage_MarkupParsingFailed, "XML"),
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
previousPosition = _innerContext.Position;
}
// Check whether there were not closed tags
if (_tagStack.Count > 0)
{
StackedXmlTag stackedTag = _tagStack.Pop();
throw new XmlParsingException(
string.Format(Strings.ErrorMessage_NotClosedTag, stackedTag.Name),
stackedTag.Coordinates,
SourceCodeNavigator.GetSourceFragment(_innerContext.SourceCode, stackedTag.Coordinates));
}
}
catch (XmlParsingException)
{
throw;
}
finally
{
_tagStack.Clear();
_context = null;
_innerContext = null;
}
}
}
/// <summary>
/// Parses a Mustache-style markup
/// </summary>
/// <param name="content">Mustache-style markup</param>
/// <param name="mustacheStyleTagHandler">Mustache-style tags handler</param>
/// <param name="textHandler">Text handler</param>
public static void ParseMarkup(string content, MustacheStyleTagDelegate mustacheStyleTagHandler,
TextDelegate textHandler)
{
var innerContext = new InnerMarkupParsingContext(content);
var context = new MarkupParsingContext(innerContext);
MatchCollection mustacheStyleTagMatches = _mustacheStyleTagRegex.Matches(content);
if (mustacheStyleTagMatches.Count == 0)
{
if (textHandler != null)
{
textHandler(context, content);
}
innerContext.IncreasePosition(content.Length);
return;
}
int currentPosition = 0;
int endPosition = content.Length - 1;
foreach (Match mustacheStyleTagMatch in mustacheStyleTagMatches)
{
int mustacheStyleTagPosition = mustacheStyleTagMatch.Index;
int mustacheStyleTagLength = mustacheStyleTagMatch.Length;
if (mustacheStyleTagPosition > currentPosition)
{
string text = content.Substring(currentPosition, mustacheStyleTagPosition - currentPosition);
if (textHandler != null)
{
textHandler(context, text);
}
innerContext.IncreasePosition(text.Length);
}
GroupCollection mustacheStyleTagGroups = mustacheStyleTagMatch.Groups;
string expression = mustacheStyleTagGroups["expression"].Value;
string startDelimiter = mustacheStyleTagGroups["startDelimiter"].Value;
string endDelimiter = mustacheStyleTagGroups["endDelimiter"].Value;
if (expression.StartsWith("{") && expression.EndsWith("}"))
{
expression = expression.Substring(1, expression.Length - 2);
startDelimiter = "{{{";
endDelimiter = "}}}";
}
if (mustacheStyleTagHandler != null)
{
mustacheStyleTagHandler(context, expression, startDelimiter, endDelimiter);
}
innerContext.IncreasePosition(mustacheStyleTagLength);
currentPosition = mustacheStyleTagPosition + mustacheStyleTagLength;
}
if (currentPosition > 0 && currentPosition <= endPosition)
{
string text = content.Substring(currentPosition, endPosition - currentPosition + 1);
if (textHandler != null)
{
textHandler(context, text);
}
innerContext.IncreasePosition(text.Length);
}
}
/// <summary>
/// Parses XML content
/// </summary>
/// <param name="content">XML content</param>
public void Parse(string content)
{
int contentLength = content.Length;
if (contentLength == 0)
{
return;
}
lock (_parsingSynchronizer)
{
_innerContext = new InnerMarkupParsingContext(content);
_context = new MarkupParsingContext(_innerContext);
_tagStack = new Stack <StackedXmlTag>();
int endPosition = contentLength - 1;
int previousPosition = -1;
try
{
while (_innerContext.Position <= endPosition)
{
bool isProcessed = false;
if (content.CustomStartsWith("<", _innerContext.Position, StringComparison.Ordinal))
{
if (content.CustomStartsWith("</", _innerContext.Position, StringComparison.Ordinal))
{
// End tag
isProcessed = ProcessEndTag();
}
else if (content.CustomStartsWith("<!", _innerContext.Position, StringComparison.Ordinal))
{
// XML comments
isProcessed = ProcessComment();
if (!isProcessed)
{
// CDATA sections
isProcessed = ProcessCdataSection();
}
if (!isProcessed)
{
// Doctype declaration
isProcessed = ProcessDoctype();
}
}
else if (content.CustomStartsWith("<?", _innerContext.Position, StringComparison.Ordinal))
{
// XML declaration and processing instructions
isProcessed = ProcessProcessingInstruction();
}
else
{
// Start tag
isProcessed = ProcessStartTag();
}
}
if (!isProcessed)
{
// Text
ProcessText();
}
if (_innerContext.Position == previousPosition)
{
throw new XmlParsingException(
string.Format(Strings.ErrorMessage_MarkupParsingFailed, "XML"),
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
previousPosition = _innerContext.Position;
}
// Check whether there were not closed tags
if (_tagStack.Count > 0)
{
StackedXmlTag stackedTag = _tagStack.Pop();
throw new XmlParsingException(
string.Format(Strings.ErrorMessage_NotClosedTag, stackedTag.Name),
stackedTag.Coordinates,
SourceCodeNavigator.GetSourceFragment(_innerContext.SourceCode, stackedTag.Coordinates));
}
}
catch (XmlParsingException)
{
throw;
}
finally
{
_tagStack.Clear();
_context = null;
_innerContext = null;
}
}
}
/// <summary>
/// Parses HTML content
/// </summary>
/// <param name="content">HTML content</param>
public void Parse(string content)
{
int contentLength = content.Length;
if (contentLength == 0)
{
return;
}
lock (_parsingSynchronizer)
{
_innerContext = new InnerMarkupParsingContext(content);
_context = new MarkupParsingContext(_innerContext);
int endPosition = contentLength - 1;
int previousPosition = -1;
try
{
while (_innerContext.Position <= endPosition)
{
bool isProcessed = false;
HtmlTag lastStackedTag = _tagStack.LastOrDefault();
// Make sure we're not in a tag, that contains embedded code
if (lastStackedTag == null || !lastStackedTag.Flags.IsSet(HtmlTagFlags.EmbeddedCode))
{
if (_innerContext.PeekCurrentChar() == '<')
{
switch (_innerContext.PeekNextChar())
{
case char c when c.IsAlphaNumeric():
// Start tag
isProcessed = ProcessStartTag();
break;
case '/':
if (_innerContext.PeekNextChar().IsAlphaNumeric())
{
// End tag
isProcessed = ProcessEndTag();
}
break;
case '!':
switch (_innerContext.PeekNextChar())
{
case '-':
if (_innerContext.PeekNextChar() == '-')
{
// Comments
if (_innerContext.PeekNextChar() == '[')
{
// Revealed validating If conditional comments
// (e.g. <!--[if ... ]><!--> or <!--[if ... ]>-->)
isProcessed = ProcessRevealedValidatingIfComment();
if (!isProcessed)
{
// Hidden If conditional comments (e.g. <!--[if ... ]>)
isProcessed = ProcessHiddenIfComment();
}
}
else
{
// Revealed validating End If conditional comments
// (e.g. <!--<![endif]-->)
isProcessed = ProcessRevealedValidatingEndIfComment();
}
if (!isProcessed)
{
// HTML comments
isProcessed = ProcessComment();
}
}
break;
case '[':
switch (_innerContext.PeekNextChar())
{
case 'i':
case 'I':
// Revealed If conditional comment (e.g. <![if ... ]>)
isProcessed = ProcessRevealedIfComment();
break;
case 'e':
case 'E':
// Hidden End If conditional comment (e.g. <![endif]-->)
isProcessed = ProcessHiddenEndIfComment();
if (!isProcessed)
{
// Revealed End If conditional comment (e.g. <![endif]>)
isProcessed = ProcessRevealedEndIfComment();
}
break;
case 'C':
// CDATA sections
isProcessed = ProcessCdataSection();
break;
}
break;
case 'D':
case 'd':
// Doctype declaration
isProcessed = ProcessDoctype();
break;
}
break;
case '?':
// XML declaration
isProcessed = ProcessXmlDeclaration();
break;
}
}
if (!isProcessed)
{
// Text
ProcessText();
}
}
else
{
// Embedded code
ProcessEmbeddedCode();
}
if (_innerContext.Position == previousPosition)
{
throw new MarkupParsingException(
string.Format(Strings.ErrorMessage_MarkupParsingFailed, "HTML"),
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
previousPosition = _innerContext.Position;
}
// Clean up any remaining tags
ParseEndTag();
// Check whether there were not closed conditional comment
if (_conditionalCommentStack.Count > 0)
{
throw new MarkupParsingException(
Strings.ErrorMessage_NotClosedConditionalComment,
_innerContext.NodeCoordinates, _innerContext.GetSourceFragment());
}
}
catch (MarkupParsingException)
{
throw;
}
finally
{
_tagStack.Clear();
_tempAttributes.Clear();
_conditionalCommentStack.Clear();
_conditionalCommentOpened = false;
_xmlTagStack.Clear();
_context = null;
_innerContext = null;
}
}
}