/// <summary>
/// Constructs instance of inner markup parsing context
/// </summary>
/// <param name="sourceCode">Source code</param>
public InnerMarkupParsingContext(string sourceCode)
{
_sourceCode = sourceCode;
_position = 0;
_nodeCoordinates = new SourceCodeNodeCoordinates(1, 1);
_peekedCharOffset = 0;
}
/// <summary>
/// Constructs instance of HTML attribute
/// </summary>
/// <param name="name">Name</param>
/// <param name="value">Value</param>
/// <param name="type">Type</param>
/// <param name="nameCoordinates">Coordinates of name</param>
/// <param name="valueCoordinates">Coordinates of value</param>
public HtmlAttribute(string name, string value, HtmlAttributeType type,
SourceCodeNodeCoordinates nameCoordinates, SourceCodeNodeCoordinates valueCoordinates)
{
Name = name;
Value = value;
Type = type;
NameCoordinates = nameCoordinates;
ValueCoordinates = valueCoordinates;
}
/// <summary>
/// Calculates a absolute node coordinates
/// </summary>
/// <param name="baseNodeCoordinates">Base node coordinates</param>
/// <param name="relativeNodeCoordinates">Relative node coordinates</param>
/// <returns>Absolute node coordinates</returns>
public static SourceCodeNodeCoordinates CalculateAbsoluteNodeCoordinates(
SourceCodeNodeCoordinates baseNodeCoordinates, SourceCodeNodeCoordinates relativeNodeCoordinates)
{
int relativeLineNumber = relativeNodeCoordinates.LineNumber;
int relativeColumnNumber = relativeNodeCoordinates.ColumnNumber;
int absoluteLineNumber;
int absoluteColumnNumber;
if (!baseNodeCoordinates.IsEmpty)
{
int baseLineNumber = baseNodeCoordinates.LineNumber;
int baseColumnNumber = baseNodeCoordinates.ColumnNumber;
absoluteLineNumber = baseLineNumber;
absoluteColumnNumber = baseColumnNumber;
if (relativeLineNumber > 0)
{
if (relativeLineNumber == 1)
{
if (relativeColumnNumber > 0)
{
absoluteColumnNumber = baseColumnNumber + relativeColumnNumber - 1;
}
}
else
{
absoluteLineNumber = baseLineNumber + relativeLineNumber - 1;
absoluteColumnNumber = relativeColumnNumber;
}
}
}
else
{
absoluteLineNumber = relativeLineNumber;
absoluteColumnNumber = relativeColumnNumber;
}
var absoluteNodeCoordinates = new SourceCodeNodeCoordinates(absoluteLineNumber, absoluteColumnNumber);
return absoluteNodeCoordinates;
}
/// <summary>
/// Increases a current parsing position
/// </summary>
/// <param name="increment">Increment</param>
public void IncreasePosition(int increment)
{
int oldPosition = _position;
int newPosition = oldPosition + increment;
int fragmentStartPosition = oldPosition;
int fragmentLength = increment;
int lineBreakCount;
int charRemainderCount;
SourceCodeNavigator.CalculateLineBreakCount(_sourceCode, fragmentStartPosition, fragmentLength,
out lineBreakCount, out charRemainderCount);
SourceCodeNodeCoordinates currentNodeCoordinates = _nodeCoordinates;
_nodeCoordinates = SourceCodeNavigator.CalculateAbsoluteNodeCoordinates(currentNodeCoordinates,
lineBreakCount, charRemainderCount);
_position = newPosition;
}
/// <summary>
/// Calculates a absolute node coordinates
/// </summary>
/// <param name="baseNodeCoordinates">Base node coordinates</param>
/// <param name="additionalContent">Additional content</param>
/// <returns>Absolute node coordinates</returns>
public static SourceCodeNodeCoordinates CalculateAbsoluteNodeCoordinates(
SourceCodeNodeCoordinates baseNodeCoordinates, string additionalContent)
{
int lineBreakCount = 0;
int charRemainderCount = 0;
if (!string.IsNullOrEmpty(additionalContent))
{
CalculateLineBreakCount(additionalContent, out lineBreakCount, out charRemainderCount);
}
int absoluteLineNumber;
int absoluteColumnNumber;
if (!baseNodeCoordinates.IsEmpty)
{
int baseLineNumber = baseNodeCoordinates.LineNumber;
int baseColumnNumber = baseNodeCoordinates.ColumnNumber;
if (lineBreakCount > 0)
{
absoluteLineNumber = baseLineNumber + lineBreakCount;
absoluteColumnNumber = charRemainderCount + 1;
}
else
{
absoluteLineNumber = baseLineNumber;
absoluteColumnNumber = baseColumnNumber + charRemainderCount;
}
}
else
{
absoluteLineNumber = lineBreakCount + 1;
absoluteColumnNumber = charRemainderCount + 1;
}
var absoluteNodeCoordinates = new SourceCodeNodeCoordinates(absoluteLineNumber, absoluteColumnNumber);
return absoluteNodeCoordinates;
}
/// <summary>
/// Initializes a new instance of the <see cref="XmlParsingException"/> class
/// with a specified error message, node coordinates, source fragment
/// and reference to the inner exception that is the cause of this exception
/// </summary>
/// <param name="message">Error message that explains the reason for the exception</param>
/// <param name="nodeCoordinates">Node coordinates</param>
/// <param name="sourceFragment">Source fragment</param>
/// <param name="innerException">Exception that is the cause of the current exception</param>
public XmlParsingException(string message, SourceCodeNodeCoordinates nodeCoordinates,
string sourceFragment, Exception innerException)
: base(message, nodeCoordinates, sourceFragment, innerException)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="CodeProcessingException"/> class
/// with a specified error message, node coordinates and source fragment
/// </summary>
/// <param name="message">Error message that explains the reason for the exception</param>
/// <param name="nodeCoordinates">Node coordinates</param>
/// <param name="sourceFragment">Source fragment</param>
protected CodeProcessingException(string message, SourceCodeNodeCoordinates nodeCoordinates, string sourceFragment)
: this(message, nodeCoordinates, sourceFragment, null)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="CodeProcessingException"/> class
/// with a specified error message, node coordinates, source fragment
/// and reference to the inner exception that is the cause of this exception
/// </summary>
/// <param name="message">Error message that explains the reason for the exception</param>
/// <param name="nodeCoordinates">Node coordinates</param>
/// <param name="sourceFragment">Source fragment</param>
/// <param name="innerException">Exception that is the cause of the current exception</param>
protected CodeProcessingException(string message, SourceCodeNodeCoordinates nodeCoordinates,
string sourceFragment, Exception innerException)
: this(message, nodeCoordinates.LineNumber, nodeCoordinates.ColumnNumber,
sourceFragment, innerException)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="MarkupParsingException"/> class
/// with a specified error message, node coordinates and source fragment
/// </summary>
/// <param name="message">Error message that explains the reason for the exception</param>
/// <param name="nodeCoordinates">Node coordinates</param>
/// <param name="sourceFragment">Source fragment</param>
public MarkupParsingException(string message, SourceCodeNodeCoordinates nodeCoordinates, string sourceFragment)
: base(message, nodeCoordinates, sourceFragment)
{
}
/// <summary>
/// Constructs instance of stacked XML tag
/// </summary>
/// <param name="name">Name</param>
/// <param name="coordinates">Coordinates of tag</param>
public StackedXmlTag(string name, SourceCodeNodeCoordinates coordinates)
{
Name = name;
Coordinates = coordinates;
}
/// <summary>
/// Process a attributes
/// </summary>
/// <returns>List of attributes</returns>
private List <HtmlAttribute> ProcessAttributes()
{
string content = _innerContext.SourceCode;
int currentPosition = _innerContext.Position;
SourceCodeNodeCoordinates currentCoordinates = _innerContext.NodeCoordinates;
Match match = _attributeRegex.Match(content, currentPosition, _innerContext.RemainderLength);
while (match.Success)
{
GroupCollection groups = match.Groups;
Group attributeNameGroup = groups["attributeName"];
Group attributeEqualSignGroup = groups["attributeEqualSign"];
Group attributeValueGroup = groups["attributeValue"];
string attributeName = attributeNameGroup.Value;
string attributeNameInLowercase = attributeName;
if (Utils.ContainsUppercaseCharacters(attributeName))
{
attributeNameInLowercase = attributeName.ToLowerInvariant();
}
string attributeValue = null;
if (attributeEqualSignGroup.Success)
{
if (attributeValueGroup.Success)
{
attributeValue = attributeValueGroup.Value;
if (!string.IsNullOrWhiteSpace(attributeValue))
{
attributeValue = HtmlAttributeValueHelpers.Decode(attributeValue);
}
}
else
{
attributeValue = string.Empty;
}
}
var attributeNameCoordinates = SourceCodeNodeCoordinates.Empty;
int attributeNamePosition = -1;
if (attributeNameGroup.Success)
{
attributeNamePosition = attributeNameGroup.Index;
}
if (attributeNamePosition != -1)
{
int lineBreakCount;
int charRemainderCount;
SourceCodeNavigator.CalculateLineBreakCount(content, currentPosition,
attributeNamePosition - currentPosition, out lineBreakCount, out charRemainderCount);
attributeNameCoordinates = SourceCodeNavigator.CalculateAbsoluteNodeCoordinates(
currentCoordinates, lineBreakCount, charRemainderCount);
currentPosition = attributeNamePosition;
currentCoordinates = attributeNameCoordinates;
}
var attributeValueCoordinates = SourceCodeNodeCoordinates.Empty;
int attributeValuePosition = -1;
if (attributeValueGroup.Success)
{
attributeValuePosition = attributeValueGroup.Index;
}
if (attributeValuePosition != -1)
{
int lineBreakCount;
int charRemainderCount;
SourceCodeNavigator.CalculateLineBreakCount(content, currentPosition,
attributeValuePosition - currentPosition, out lineBreakCount, out charRemainderCount);
attributeValueCoordinates = SourceCodeNavigator.CalculateAbsoluteNodeCoordinates(
currentCoordinates, lineBreakCount, charRemainderCount);
currentPosition = attributeValuePosition;
currentCoordinates = attributeValueCoordinates;
}
var attribute = new HtmlAttribute(attributeName, attributeNameInLowercase, attributeValue,
HtmlAttributeType.Unknown, attributeNameCoordinates, attributeValueCoordinates);
_tempAttributes.Add(attribute);
_innerContext.IncreasePosition(match.Length);
match = _attributeRegex.Match(content, _innerContext.Position, _innerContext.RemainderLength);
}
int attributeCount = _tempAttributes.Count;
var attributes = new List <HtmlAttribute>(attributeCount);
for (int attributeIndex = 0; attributeIndex < attributeCount; attributeIndex++)
{
attributes.Add(_tempAttributes[attributeIndex]);
}
_tempAttributes.Clear();
return(attributes);
}
/// <summary>
/// Formats a line of source code
/// </summary>
/// <param name="line">Line content</param>
/// <param name="nodeCoordinates">Node coordinates</param>
/// <param name="lineNumberSize">Number of symbols in the line number caption</param>
/// <param name="fragmentStartPosition">Start position of source fragment</param>
/// <param name="fragmentLength">Length of source fragment</param>
/// <param name="tabSize">Number of spaces in the tab</param>
/// <returns>Formatted line</returns>
private static string FormatSourceCodeLine(string line, SourceCodeNodeCoordinates nodeCoordinates,
int lineNumberSize, int fragmentStartPosition = 0, int fragmentLength = 0, byte tabSize = 4)
{
const string ellipsisSymbol = "…";
const byte leftPaddingSize = 7;
int lineNumber = nodeCoordinates.LineNumber;
int columnNumber = nodeCoordinates.ColumnNumber;
int lineLength = line.Length;
string processedLine;
if ((fragmentStartPosition == 0 && fragmentLength == lineLength))
{
processedLine = line;
}
else if (fragmentStartPosition >= lineLength)
{
processedLine = string.Empty;
}
else
{
int fragmentEndPosition = fragmentStartPosition + fragmentLength - 1;
bool beginningCutOff = (fragmentStartPosition > 0);
bool endingCutOff = (fragmentEndPosition <= lineLength);
if (fragmentEndPosition + 1 == lineLength)
{
endingCutOff = false;
}
if (fragmentEndPosition >= lineLength)
{
endingCutOff = false;
fragmentEndPosition = lineLength - 1;
fragmentLength = fragmentEndPosition - fragmentStartPosition + 1;
}
processedLine = line.Substring(fragmentStartPosition, fragmentLength);
if (beginningCutOff)
{
processedLine = ellipsisSymbol + processedLine;
}
if (endingCutOff)
{
processedLine = processedLine + ellipsisSymbol;
}
}
string result = string.Format("Line {0}: {1}",
lineNumber.ToString(CultureInfo.InvariantCulture).PadLeft(lineNumberSize),
processedLine.TabsToSpaces(tabSize));
if (columnNumber > 0)
{
int cursorOffset = columnNumber - fragmentStartPosition;
if (fragmentStartPosition > 0)
{
cursorOffset++;
}
result += Environment.NewLine + string.Empty
.PadRight(processedLine.Substring(0, cursorOffset - 1)
.TabsToSpaces(tabSize).Length + lineNumberSize + leftPaddingSize)
.Replace(" ", "-") + "^"
;
}
return result;
}
/// <summary>
/// Gets a source fragment
/// </summary>
/// <param name="sourceCode">Source code</param>
/// <param name="nodeCoordinates">Node coordinates</param>
/// <param name="tabSize">Number of spaces in the tab</param>
/// <param name="maxFragmentLength">Maximum length of the source fragment</param>
/// <returns>Source fragment</returns>
public static string GetSourceFragment(string sourceCode,
SourceCodeNodeCoordinates nodeCoordinates, byte tabSize = DEFAULT_TAB_SIZE,
int maxFragmentLength = DEFAULT_MAX_FRAGMENT_LENGTH)
{
string sourceFragment = string.Empty;
int lineNumber = nodeCoordinates.LineNumber;
int columnNumber = nodeCoordinates.ColumnNumber;
if (!string.IsNullOrEmpty(sourceCode))
{
int previousLineNumber = lineNumber - 1;
int currentLineNumber = lineNumber;
int nextLineNumber = lineNumber + 1;
string previousLine = string.Empty;
string currentLine = string.Empty;
string nextLine = string.Empty;
int lineCount = 0;
int lineBreakPosition = int.MinValue;
int lineBreakLength = 0;
do
{
string line;
int startLinePosition = (lineBreakPosition == int.MinValue) ? 0 : lineBreakPosition + lineBreakLength;
FindNextLineBreak(sourceCode, startLinePosition, out lineBreakPosition, out lineBreakLength);
if (lineBreakPosition != -1)
{
line = sourceCode.Substring(startLinePosition, lineBreakPosition - startLinePosition);
}
else
{
line = sourceCode.Substring(startLinePosition);
}
lineCount++;
if (lineCount == previousLineNumber)
{
previousLine = line;
}
else if (lineCount == currentLineNumber)
{
currentLine = line;
}
else if (lineCount == nextLineNumber)
{
nextLine = line;
}
}
while (lineBreakPosition != -1 && lineCount <= nextLineNumber);
int lineNumberSize = (nextLineNumber).ToString(CultureInfo.InvariantCulture).Length;
if (currentLineNumber == lineCount)
{
lineNumberSize = currentLineNumber.ToString(CultureInfo.InvariantCulture).Length;
}
int fragmentStartPosition;
int fragmentLength;
CalculateCutPositions(currentLine, columnNumber, maxFragmentLength,
out fragmentStartPosition, out fragmentLength);
var sourceFragmentBuilder = new StringBuilder();
if (currentLine.Length > 0)
{
if (previousLine.Length > 0)
{
sourceFragmentBuilder.AppendLine(FormatSourceCodeLine(previousLine,
new SourceCodeNodeCoordinates(previousLineNumber, 0),
lineNumberSize, fragmentStartPosition, fragmentLength, tabSize));
}
sourceFragmentBuilder.AppendLine(FormatSourceCodeLine(currentLine,
new SourceCodeNodeCoordinates(currentLineNumber, columnNumber),
lineNumberSize, fragmentStartPosition, fragmentLength, tabSize));
if (nextLine.Length > 0)
{
sourceFragmentBuilder.AppendLine(FormatSourceCodeLine(nextLine,
new SourceCodeNodeCoordinates(nextLineNumber, 0),
lineNumberSize, fragmentStartPosition, fragmentLength, tabSize));
}
}
sourceFragment = sourceFragmentBuilder.ToString();
}
return sourceFragment;
}
/// <summary>
/// Calculates a node coordinates
/// </summary>
/// <param name="sourceCode">Source code</param>
/// <param name="nodePosition">Current node position</param>
/// <returns>Node coordinates</returns>
public static SourceCodeNodeCoordinates CalculateNodeCoordinates(string sourceCode, int nodePosition)
{
if (string.IsNullOrEmpty(sourceCode) || nodePosition >= sourceCode.Length)
{
return SourceCodeNodeCoordinates.Empty;
}
int fragmentLength = nodePosition + 1;
int lineBreakCount;
int charRemainderCount;
CalculateLineBreakCount(sourceCode, 0, fragmentLength,
out lineBreakCount, out charRemainderCount);
var nodeCoordinates = new SourceCodeNodeCoordinates(lineBreakCount + 1, charRemainderCount + 1);
return nodeCoordinates;
}
/// <summary>
/// Calculates a absolute node coordinates
/// </summary>
/// <param name="baseNodeCoordinates">Base node coordinates</param>
/// <param name="lineBreakCount">Number of line breaks</param>
/// <param name="charRemainderCount">Number of characters left</param>
/// <returns>Absolute node coordinates</returns>
public static SourceCodeNodeCoordinates CalculateAbsoluteNodeCoordinates(
SourceCodeNodeCoordinates baseNodeCoordinates, int lineBreakCount, int charRemainderCount)
{
int absoluteLineNumber;
int absoluteColumnNumber;
if (!baseNodeCoordinates.IsEmpty)
{
int baseLineNumber = baseNodeCoordinates.LineNumber;
int baseColumnNumber = baseNodeCoordinates.ColumnNumber;
if (lineBreakCount > 0)
{
absoluteLineNumber = baseLineNumber + lineBreakCount;
absoluteColumnNumber = charRemainderCount + 1;
}
else
{
absoluteLineNumber = baseLineNumber;
absoluteColumnNumber = baseColumnNumber + charRemainderCount;
}
}
else
{
absoluteLineNumber = lineBreakCount + 1;
absoluteColumnNumber = charRemainderCount + 1;
}
var absoluteNodeCoordinates = new SourceCodeNodeCoordinates(absoluteLineNumber, absoluteColumnNumber);
return absoluteNodeCoordinates;
}
