/// <summary>
/// End tags handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="tagName">Tag name</param>
private void EndTagHandler(MarkupParsingContext context, string tagName)
{
XmlNodeType previousNodeType = _currentNodeType;
string previousText = _currentText;
_currentNodeType = XmlNodeType.EndTag;
_currentText = string.Empty;
if (_settings.CollapseTagsWithoutContent && previousNodeType == XmlNodeType.StartTag &&
previousText.Length == 0)
{
if (TransformLastStartTagToEmptyTag())
{
FlushBuffer();
return;
}
}
if (_settings.MinifyWhitespace && previousNodeType == XmlNodeType.Text &&
(_endTagBeforeText || _emptyTagBeforeText))
{
RemoveLastWhitespaceBufferItems();
}
// Add end tag to buffer
_buffer.Add("</");
_buffer.Add(tagName);
_buffer.Add(">");
FlushBuffer();
}
/// <summary>
/// Parses a Angular comment directive
/// </summary>
/// <param name="commentText">Comment text</param>
/// <param name="commentDirectiveHandler">Angular comment directive handler</param>
public static void ParseCommentDirective(string commentText, CommentDirectiveDelegate commentDirectiveHandler)
{
Match match = _ngCommentDirectiveRegex.Match(commentText);
if (match.Success)
{
var innerContext = new InnerMarkupParsingContext(commentText);
var context = new MarkupParsingContext(innerContext);
GroupCollection groups = match.Groups;
Group directiveNameGroup = groups["directiveName"];
string directiveName = directiveNameGroup.Value;
Group expressionGroup = groups["expression"];
if (expressionGroup.Success)
{
int expressionPosition = expressionGroup.Index;
string expression = expressionGroup.Value.Trim();
innerContext.IncreasePosition(expressionPosition);
commentDirectiveHandler?.Invoke(context, directiveName, expression);
}
}
}
/// <summary>
/// End tags handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="tagName">Tag name</param>
private void EndTagHandler(MarkupParsingContext context, string tagName)
{
XmlNodeType previousNodeType = _currentNodeType;
string previousText = _currentText;
_currentNodeType = XmlNodeType.EndTag;
_currentText = string.Empty;
XmlMinificationOutputWriter output = _output;
if (_settings.CollapseTagsWithoutContent && previousNodeType == XmlNodeType.StartTag &&
previousText.Length == 0)
{
if (output.TransformLastStartTagToEmptyTag(_settings.RenderEmptyTagsWithSpace))
{
output.Flush();
return;
}
}
if (_settings.MinifyWhitespace && previousNodeType == XmlNodeType.Text &&
(_endTagBeforeText || _emptyTagBeforeText))
{
output.RemoveLastWhitespaceItems();
}
// Add end tag to buffer
output.Write("</");
output.Write(tagName);
output.Write(">");
output.Flush();
}
/// <summary>
/// Parses a Angular class directive
/// </summary>
/// <param name="className">Class name</param>
/// <param name="classDirectiveHandler">Angular class directive handler</param>
/// <param name="otherContentHandler">Other сontent handler</param>
public static void ParseClassDirective(string className, ClassDirectiveDelegate classDirectiveHandler,
OtherContentDelegate otherContentHandler)
{
int classNameLength = className.Length;
int currentPosition = 0;
int remainderLength = classNameLength;
var innerContext = new InnerMarkupParsingContext(className);
var context = new MarkupParsingContext(innerContext);
Match match = _ngClassDirectiveRegex.Match(className, currentPosition, remainderLength);
while (match.Success)
{
GroupCollection groups = match.Groups;
Group directiveNameGroup = groups["directiveName"];
int directiveNamePosition = directiveNameGroup.Index;
string directiveName = directiveNameGroup.Value;
if (directiveNamePosition > currentPosition)
{
string otherContent = className.Substring(currentPosition,
directiveNamePosition - currentPosition);
otherContentHandler?.Invoke(context, otherContent);
}
Group expressionGroup = groups["expression"];
string expression = string.Empty;
if (expressionGroup.Success)
{
int expressionPosition = expressionGroup.Index;
expression = expressionGroup.Value.Trim();
innerContext.IncreasePosition(expressionPosition - currentPosition);
currentPosition = expressionPosition;
remainderLength = classNameLength - currentPosition;
}
Group semicolonGroup = groups["semicolon"];
bool endsWithSemicolon = semicolonGroup.Success;
classDirectiveHandler?.Invoke(context, directiveName, expression, endsWithSemicolon);
int nextItemPosition = match.Index + match.Length;
innerContext.IncreasePosition(nextItemPosition - currentPosition);
currentPosition = nextItemPosition;
remainderLength = classNameLength - currentPosition;
match = _ngClassDirectiveRegex.Match(className, currentPosition, remainderLength);
}
if (remainderLength > 0)
{
string otherContent = className.Substring(currentPosition, remainderLength);
otherContentHandler?.Invoke(context, otherContent);
}
}
/// <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 match = _ngCommentDirectiveRegex.Match(commentText);
if (match.Success)
{
var innerContext = new InnerMarkupParsingContext(commentText);
var context = new MarkupParsingContext(innerContext);
GroupCollection groups = match.Groups;
Group directiveNameGroup = groups["directiveName"];
int directiveNamePosition = directiveNameGroup.Index;
string originalDirectiveName = directiveNameGroup.Value;
string normalizedDirectiveName = NormalizeDirectiveName(originalDirectiveName);
innerContext.IncreasePosition(directiveNamePosition);
directiveNameHandler?.Invoke(context, originalDirectiveName, normalizedDirectiveName);
Group expressionGroup = groups["expression"];
if (expressionGroup.Success)
{
int expressionPosition = expressionGroup.Index;
string expression = expressionGroup.Value.Trim();
innerContext.IncreasePosition(expressionPosition - directiveNamePosition);
expressionHandler?.Invoke(context, expression);
}
}
}
/// <summary>
/// Start tags handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="tagName">Tag name</param>
/// <param name="attributes">List of attributes</param>
private void StartTagHandler(MarkupParsingContext context, string tagName,
List <XmlAttribute> attributes)
{
XmlNodeType previousNodeType = _currentNodeType;
_currentNodeType = XmlNodeType.StartTag;
_currentText = string.Empty;
XmlMinificationOutputWriter output = _output;
if (_settings.MinifyWhitespace && previousNodeType == XmlNodeType.Text &&
(_startTagBeforeText || _endTagBeforeText || _emptyTagBeforeText ||
_ignoredFragmentBeforeText || _xmlDeclarationBeforeText ||
_processingInstructionBeforeText || _doctypeBeforeText))
{
output.RemoveLastWhitespaceItems();
}
output.Flush();
output.Write("<");
output.Write(tagName);
WriteAttributes(attributes);
output.Write(">");
}
/// <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>
/// CDATA sections handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="cdataText">CDATA text</param>
private void CdataSectionHandler(MarkupParsingContext context, string cdataText)
{
_currentNodeType = XmlNodeType.CdataSection;
_buffer.Add("<![CDATA[");
_buffer.Add(cdataText);
_buffer.Add("]]>");
}
/// <summary>
/// CDATA sections handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="cdataText">CDATA text</param>
private void CdataSectionHandler(MarkupParsingContext context, string cdataText)
{
_currentNodeType = XmlNodeType.CdataSection;
XmlMinificationOutputWriter output = _output;
output.Write("<![CDATA[");
output.Write(cdataText);
output.Write("]]>");
}
/// <summary>
/// Comments handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="commentText">Comment text</param>
private void CommentHandler(MarkupParsingContext context, string commentText)
{
if (!_settings.RemoveXmlComments)
{
_currentNodeType = XmlNodeType.Comment;
_buffer.Add("<!--");
_buffer.Add(commentText);
_buffer.Add("-->");
}
}
/// <summary>
/// Document type declaration handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="doctype">Document type declaration</param>
private void DoctypeDelegateHandler(MarkupParsingContext context, string doctype)
{
_currentNodeType = XmlNodeType.Doctype;
if (_settings.MinifyWhitespace)
{
RemoveLastWhitespaceBufferItems();
}
_buffer.Add(Utils.CollapseWhitespace(doctype));
}
/// <summary>
/// Parses a markup of template
/// </summary>
/// <param name="content">Markup of template</param>
/// <param name="templateTagHandler">Template tags delegate</param>
/// <param name="textHandler">Text delegate</param>
public static void ParseMarkup(string content,
HtmlParsingHandlers.TemplateTagDelegate templateTagHandler,
HtmlParsingHandlers.TextDelegate textHandler)
{
var innerContext = new InnerMarkupParsingContext(content);
var context = new MarkupParsingContext(innerContext);
MatchCollection matches = _templateTagRegex.Matches(content);
int matchCount = matches.Count;
if (matchCount == 0)
{
textHandler?.Invoke(context, content);
innerContext.IncreasePosition(content.Length);
return;
}
int currentPosition = 0;
int endPosition = content.Length - 1;
for (int matchIndex = 0; matchIndex < matchCount; matchIndex++)
{
Match match = matches[matchIndex];
int templateTagPosition = match.Index;
int templateTagLength = match.Length;
if (templateTagPosition > currentPosition)
{
string text = content.Substring(currentPosition, templateTagPosition - currentPosition);
textHandler?.Invoke(context, text);
innerContext.IncreasePosition(text.Length);
}
GroupCollection groups = match.Groups;
string expression = groups["expression"].Value;
string startDelimiter = groups["startDelimiter"].Value;
string endDelimiter = groups["endDelimiter"].Value;
templateTagHandler?.Invoke(context, expression, startDelimiter, endDelimiter);
innerContext.IncreasePosition(templateTagLength);
currentPosition = templateTagPosition + templateTagLength;
}
if (currentPosition > 0 && currentPosition <= endPosition)
{
string text = content.Substring(currentPosition, endPosition - currentPosition + 1);
textHandler?.Invoke(context, text);
innerContext.IncreasePosition(text.Length);
}
}
/// <summary>
/// Comments handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="commentText">Comment text</param>
private void CommentHandler(MarkupParsingContext context, string commentText)
{
if (!_settings.RemoveXmlComments)
{
_currentNodeType = XmlNodeType.Comment;
XmlMinificationOutputWriter output = _output;
output.Write("<!--");
output.Write(commentText);
output.Write("-->");
}
}
/// <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 matches = _ngClassDirectiveRegex.Matches(className);
int matchCount = matches.Count;
if (matchCount > 0)
{
var innerContext = new InnerMarkupParsingContext(className);
var context = new MarkupParsingContext(innerContext);
int currentPosition = 0;
for (int matchIndex = 0; matchIndex < matchCount; matchIndex++)
{
Match match = matches[matchIndex];
GroupCollection groups = match.Groups;
Group directiveNameGroup = groups["directiveName"];
int directiveNamePosition = directiveNameGroup.Index;
string originalDirectiveName = directiveNameGroup.Value;
string normalizedDirectiveName = NormalizeDirectiveName(originalDirectiveName);
innerContext.IncreasePosition(directiveNamePosition - currentPosition);
currentPosition = directiveNamePosition;
directiveNameHandler?.Invoke(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;
expressionHandler?.Invoke(context, expression);
}
Group semicolonGroup = groups["semicolon"];
if (semicolonGroup.Success)
{
int semicolonPosition = semicolonGroup.Index;
innerContext.IncreasePosition(semicolonPosition - currentPosition);
currentPosition = semicolonPosition;
semicolonHandler?.Invoke(context);
}
}
}
}
/// <summary>
/// XML declaration handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="attributes">List of attributes</param>
private void XmlDeclarationHandler(MarkupParsingContext context, IList <XmlAttribute> attributes)
{
_currentNodeType = XmlNodeType.XmlDeclaration;
if (_settings.MinifyWhitespace)
{
RemoveLastWhitespaceBufferItems();
}
_buffer.Add("<?xml");
RenderAttributes(attributes);
_buffer.Add("?>");
}
/// <summary>
/// Ignored fragments handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="fragment">Ignored fragment</param>
private void IgnoredFragmentHandler(MarkupParsingContext context, string fragment)
{
_currentNodeType = XmlNodeType.IgnoredFragment;
if (_settings.MinifyWhitespace)
{
RemoveLastWhitespaceBufferItems();
}
if (fragment.Length > 0)
{
_buffer.Add(fragment);
}
}
/// <summary>
/// Document type declaration handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="doctype">Document type declaration</param>
private void DoctypeDelegateHandler(MarkupParsingContext context, string doctype)
{
_currentNodeType = XmlNodeType.Doctype;
XmlMinificationOutputWriter output = _output;
if (_settings.MinifyWhitespace)
{
output.RemoveLastWhitespaceItems();
}
output.Write(Utils.CollapseWhitespace(doctype));
output.Flush();
}
/// <summary>
/// Processing instruction handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="instructionName">Instruction name</param>
/// <param name="attributes">List of attributes</param>
private void ProcessingInstructionHandler(MarkupParsingContext context, string instructionName,
IList <XmlAttribute> attributes)
{
_currentNodeType = XmlNodeType.ProcessingInstruction;
if (_settings.MinifyWhitespace)
{
RemoveLastWhitespaceBufferItems();
}
_buffer.Add("<?");
_buffer.Add(instructionName);
RenderAttributes(attributes);
_buffer.Add("?>");
}
/// <summary>
/// XML declaration handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="attributes">List of attributes</param>
private void XmlDeclarationHandler(MarkupParsingContext context, List <XmlAttribute> attributes)
{
_currentNodeType = XmlNodeType.XmlDeclaration;
XmlMinificationOutputWriter output = _output;
if (_settings.MinifyWhitespace)
{
output.RemoveLastWhitespaceItems();
}
output.Write("<?xml");
WriteAttributes(attributes);
output.Write("?>");
output.Flush();
}
/// <summary>
/// Ignored fragments handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="fragment">Ignored fragment</param>
private void IgnoredFragmentHandler(MarkupParsingContext context, string fragment)
{
_currentNodeType = XmlNodeType.IgnoredFragment;
XmlMinificationOutputWriter output = _output;
if (_settings.MinifyWhitespace)
{
output.RemoveLastWhitespaceItems();
}
if (fragment.Length > 0)
{
output.Write(fragment);
output.Flush();
}
}
/// <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 match = _koBeginContainerlessCommentRegex.Match(commentText);
if (match.Success)
{
var innerContext = new InnerMarkupParsingContext(commentText);
var context = new MarkupParsingContext(innerContext);
Group expressionGroup = match.Groups["expression"];
int expressionPosition = expressionGroup.Index;
string expression = expressionGroup.Value.TrimEnd(null);
innerContext.IncreasePosition(expressionPosition);
expressionHandler?.Invoke(context, expression);
}
}
/// <summary>
/// Empty tags handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="tagName">Tag name</param>
/// <param name="attributes">List of attributes</param>
private void EmptyTagHandler(MarkupParsingContext context, string tagName,
IList <XmlAttribute> attributes)
{
XmlNodeType previousNodeType = _currentNodeType;
_currentNodeType = XmlNodeType.EmptyTag;
_currentText = string.Empty;
if (_settings.MinifyWhitespace && previousNodeType == XmlNodeType.Text &&
(_startTagBeforeText || _endTagBeforeText || _emptyTagBeforeText))
{
RemoveLastWhitespaceBufferItems();
}
_buffer.Add("<");
_buffer.Add(tagName);
RenderAttributes(attributes);
_buffer.Add(_settings.RenderEmptyTagsWithSpace ? " />" : "/>");
}
/// <summary>
/// Processing instruction handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="instructionName">Instruction name</param>
/// <param name="attributes">List of attributes</param>
private void ProcessingInstructionHandler(MarkupParsingContext context, string instructionName,
List <XmlAttribute> attributes)
{
_currentNodeType = XmlNodeType.ProcessingInstruction;
XmlMinificationOutputWriter output = _output;
if (_settings.MinifyWhitespace)
{
output.RemoveLastWhitespaceItems();
}
output.Write("<?");
output.Write(instructionName);
WriteAttributes(attributes);
output.Write("?>");
output.Flush();
}
/// <summary>
/// Start tags handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="tagName">Tag name</param>
/// <param name="attributes">List of attributes</param>
private void StartTagHandler(MarkupParsingContext context, string tagName,
IList <XmlAttribute> attributes)
{
XmlNodeType previousNodeType = _currentNodeType;
_currentNodeType = XmlNodeType.StartTag;
_currentText = string.Empty;
if (_settings.MinifyWhitespace && previousNodeType == XmlNodeType.Text &&
(_startTagBeforeText || _endTagBeforeText || _emptyTagBeforeText ||
_xmlDeclarationBeforeText || _processingInstructionBeforeText || _doctypeBeforeText))
{
RemoveLastWhitespaceBufferItems();
}
_buffer.Add("<");
_buffer.Add(tagName);
RenderAttributes(attributes);
_buffer.Add(">");
}
/// <summary>
/// Empty tags handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="tagName">Tag name</param>
/// <param name="attributes">List of attributes</param>
private void EmptyTagHandler(MarkupParsingContext context, string tagName,
List <XmlAttribute> attributes)
{
XmlNodeType previousNodeType = _currentNodeType;
_currentNodeType = XmlNodeType.EmptyTag;
_currentText = string.Empty;
XmlMinificationOutputWriter output = _output;
if (_settings.MinifyWhitespace && previousNodeType == XmlNodeType.Text &&
(_startTagBeforeText || _endTagBeforeText || _emptyTagBeforeText))
{
output.RemoveLastWhitespaceItems();
}
output.Write("<");
output.Write(tagName);
WriteAttributes(attributes);
output.Write(_settings.RenderEmptyTagsWithSpace ? " />" : "/>");
output.Flush();
}
/// <summary>
/// Text handler
/// </summary>
/// <param name="context">Markup parsing context</param>
/// <param name="text">Text</param>
private void TextHandler(MarkupParsingContext context, string text)
{
XmlNodeType previousNodeType = _currentNodeType;
_currentNodeType = XmlNodeType.Text;
XmlMinificationOutputWriter output = _output;
if (previousNodeType == XmlNodeType.Text)
{
_currentText = text;
output.Write(text);
return;
}
_xmlDeclarationBeforeText = false;
_processingInstructionBeforeText = false;
_doctypeBeforeText = false;
_startTagBeforeText = false;
_endTagBeforeText = false;
_emptyTagBeforeText = false;
_ignoredFragmentBeforeText = false;
switch (previousNodeType)
{
case XmlNodeType.StartTag:
_startTagBeforeText = true;
break;
case XmlNodeType.EndTag:
_endTagBeforeText = true;
break;
case XmlNodeType.EmptyTag:
_emptyTagBeforeText = true;
break;
case XmlNodeType.IgnoredFragment:
_ignoredFragmentBeforeText = true;
break;
case XmlNodeType.XmlDeclaration:
_xmlDeclarationBeforeText = true;
break;
case XmlNodeType.ProcessingInstruction:
_processingInstructionBeforeText = true;
break;
case XmlNodeType.Doctype:
_doctypeBeforeText = true;
break;
}
if (_settings.MinifyWhitespace)
{
if (context.Position == 0)
{
// Processing starting whitespace
text = text.TrimStart(null);
}
else if (context.Position + text.Length == context.Length)
{
// Processing ending whitespace
text = text.TrimEnd(null);
}
else if (_xmlDeclarationBeforeText || _processingInstructionBeforeText || _doctypeBeforeText)
{
// Processing whitespace, that followed after
// the XML declaration, processing instruction
// or document type declaration
if (string.IsNullOrWhiteSpace(text))
{
text = string.Empty;
}
}
}
_currentText = text;
if (text.Length > 0)
{
output.Write(text);
}
}
/// <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);
}
}