/// <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 lineNumber1;
int columnNumber1;
if (!baseNodeCoordinates.IsEmpty)
{
int lineNumber2 = baseNodeCoordinates.LineNumber;
int columnNumber2 = baseNodeCoordinates.ColumnNumber;
if (lineBreakCount > 0)
{
lineNumber1 = lineNumber2 + lineBreakCount;
columnNumber1 = charRemainderCount + 1;
}
else
{
lineNumber1 = lineNumber2;
columnNumber1 = columnNumber2 + charRemainderCount;
}
}
else
{
lineNumber1 = lineBreakCount + 1;
columnNumber1 = charRemainderCount + 1;
}
return(new SourceCodeNodeCoordinates(lineNumber1, columnNumber1));
}
/// <summary>
/// Gets a source fragment
/// </summary>
/// <param name="sourceCode">Source code</param>
/// <param name="nodePosition">Current node position</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, int nodePosition,
byte tabSize = DEFAULT_TAB_SIZE, int maxFragmentLength = DEFAULT_MAX_FRAGMENT_LENGTH)
{
SourceCodeNodeCoordinates nodeCoordinates = CalculateNodeCoordinates(sourceCode, nodePosition);
return(GetSourceFragment(sourceCode, nodeCoordinates, tabSize));
}
/// <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);
}
/// <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)
{
int lineNumber = nodeCoordinates.LineNumber;
int columnNumber = nodeCoordinates.ColumnNumber;
int length = line.Length;
string source;
if (fragmentStartPosition == 0 && fragmentLength == length)
{
source = line;
}
else if (fragmentStartPosition >= length)
{
source = string.Empty;
}
else
{
int num = fragmentStartPosition + fragmentLength - 1;
bool flag1 = fragmentStartPosition > 0;
bool flag2 = num <= length;
if (num + 1 == length)
{
flag2 = false;
}
if (num >= length)
{
flag2 = false;
fragmentLength = length - 1 - fragmentStartPosition + 1;
}
source = line.Substring(fragmentStartPosition, fragmentLength);
if (flag1)
{
source = "…" + source;
}
if (flag2)
{
source += "…";
}
}
string str = string.Format("Line {0}: {1}", (object)lineNumber.ToString((IFormatProvider)CultureInfo.InvariantCulture).PadLeft(lineNumberSize), (object)source.TabsToSpaces((int)tabSize));
if (columnNumber > 0)
{
int num = columnNumber - fragmentStartPosition;
if (fragmentStartPosition > 0)
{
++num;
}
str = str + Environment.NewLine + string.Empty.PadRight((num < source.Length ? source.Substring(0, num - 1) : source).TabsToSpaces((int)tabSize).Length + lineNumberSize + 7).Replace(" ", "-") + "^";
}
return(str);
}
/// <summary>Gets a source fragment</summary>
/// <param name="sourceCode">Source code</param>
/// <param name="nodePosition">Current node position</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,
int nodePosition,
byte tabSize = 4,
int maxFragmentLength = 95)
{
SourceCodeNodeCoordinates nodeCoordinates = SourceCodeNavigator.CalculateNodeCoordinates(sourceCode, nodePosition);
return(SourceCodeNavigator.GetSourceFragment(sourceCode, nodeCoordinates, tabSize));
}
/// <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="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>
/// 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>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 lineNumber1 = relativeNodeCoordinates.LineNumber;
int columnNumber1 = relativeNodeCoordinates.ColumnNumber;
int lineNumber2;
int columnNumber2;
if (!baseNodeCoordinates.IsEmpty)
{
int lineNumber3 = baseNodeCoordinates.LineNumber;
int columnNumber3 = baseNodeCoordinates.ColumnNumber;
lineNumber2 = lineNumber3;
columnNumber2 = columnNumber3;
if (lineNumber1 > 0)
{
if (lineNumber1 == 1)
{
if (columnNumber1 > 0)
{
columnNumber2 = columnNumber3 + columnNumber1 - 1;
}
}
else
{
lineNumber2 = lineNumber3 + lineNumber1 - 1;
columnNumber2 = columnNumber1;
}
}
}
else
{
lineNumber2 = lineNumber1;
columnNumber2 = columnNumber1;
}
return(new SourceCodeNodeCoordinates(lineNumber2, columnNumber2));
}
/// <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))
{
SourceCodeNavigator.CalculateLineBreakCount(additionalContent, out lineBreakCount, out charRemainderCount);
}
int lineNumber1;
int columnNumber1;
if (!baseNodeCoordinates.IsEmpty)
{
int lineNumber2 = baseNodeCoordinates.LineNumber;
int columnNumber2 = baseNodeCoordinates.ColumnNumber;
if (lineBreakCount > 0)
{
lineNumber1 = lineNumber2 + lineBreakCount;
columnNumber1 = charRemainderCount + 1;
}
else
{
lineNumber1 = lineNumber2;
columnNumber1 = columnNumber2 + charRemainderCount;
}
}
else
{
lineNumber1 = lineBreakCount + 1;
columnNumber1 = charRemainderCount + 1;
}
return(new SourceCodeNodeCoordinates(lineNumber1, columnNumber1));
}
/// <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>
/// 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>
/// 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>
/// 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(
(cursorOffset < processedLine.Length ?
processedLine.Substring(0, cursorOffset - 1) : processedLine
).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 stringBuilderPool = StringBuilderPool.Shared;
StringBuilder sourceFragmentBuilder = stringBuilderPool.Rent();
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();
stringBuilderPool.Return(sourceFragmentBuilder);
}
return(sourceFragment);
}
/// <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>
/// 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;
}
/// <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 = 4,
int maxFragmentLength = 95)
{
string empty = string.Empty;
int lineNumber1 = nodeCoordinates.LineNumber;
int columnNumber = nodeCoordinates.ColumnNumber;
if (!string.IsNullOrEmpty(sourceCode))
{
int lineNumber2 = lineNumber1 - 1;
int lineNumber3 = lineNumber1;
int lineNumber4 = lineNumber1 + 1;
string line1 = string.Empty;
string line2 = string.Empty;
string line3 = string.Empty;
int num1 = 0;
int lineBreakPosition = int.MinValue;
int lineBreakLength = 0;
do
{
int num2 = lineBreakPosition == int.MinValue ? 0 : lineBreakPosition + lineBreakLength;
SourceCodeNavigator.FindNextLineBreak(sourceCode, num2, out lineBreakPosition, out lineBreakLength);
string str = lineBreakPosition == -1 ? sourceCode.Substring(num2) : sourceCode.Substring(num2, lineBreakPosition - num2);
++num1;
if (num1 == lineNumber2)
{
line1 = str;
}
else if (num1 == lineNumber3)
{
line2 = str;
}
else if (num1 == lineNumber4)
{
line3 = str;
}
}while (lineBreakPosition != -1 && num1 <= lineNumber4);
int length = lineNumber4.ToString((IFormatProvider)CultureInfo.InvariantCulture).Length;
if (lineNumber3 == num1)
{
length = lineNumber3.ToString((IFormatProvider)CultureInfo.InvariantCulture).Length;
}
int fragmentStartPosition;
int fragmentLength;
SourceCodeNavigator.CalculateCutPositions(line2, columnNumber, maxFragmentLength, out fragmentStartPosition, out fragmentLength);
StringBuilderPool shared = StringBuilderPool.Shared;
StringBuilder builder = shared.Rent();
if (line2.Length > 0)
{
if (line1.Length > 0)
{
builder.AppendLine(SourceCodeNavigator.FormatSourceCodeLine(line1, new SourceCodeNodeCoordinates(lineNumber2, 0), length, fragmentStartPosition, fragmentLength, tabSize));
}
builder.AppendLine(SourceCodeNavigator.FormatSourceCodeLine(line2, new SourceCodeNodeCoordinates(lineNumber3, columnNumber), length, fragmentStartPosition, fragmentLength, tabSize));
if (line3.Length > 0)
{
builder.AppendLine(SourceCodeNavigator.FormatSourceCodeLine(line3, new SourceCodeNodeCoordinates(lineNumber4, 0), length, fragmentStartPosition, fragmentLength, tabSize));
}
}
empty = builder.ToString();
shared.Return(builder);
}
return(empty);
}
/// <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;
}