public override IScanner GetScanner(IVsTextLines buffer)
{
string filePath = FilePathUtilities.GetFilePath(buffer);
// Return dynamic scanner based on file extension
return(AsmHighlighterScannerFactory.GetScanner(filePath));
}
/// <summary>
/// Validates the breakpoint location.
/// </summary>
/// <param name="buffer">The buffer.</param>
/// <param name="line">The line.</param>
/// <param name="col">The col.</param>
/// <param name="pCodeSpan">The TextSpans to update.</param>
/// <returns></returns>
public override int ValidateBreakpointLocation(IVsTextBuffer buffer, int line, int col, TextSpan[] pCodeSpan)
{
// Return noimpl by default
int retval = VSConstants.E_NOTIMPL;
if (pCodeSpan != null)
{
// Make sure the span is set to at least the current
// position by default.
pCodeSpan[0].iStartLine = line;
pCodeSpan[0].iStartIndex = 0;
pCodeSpan[0].iEndLine = line;
pCodeSpan[0].iEndIndex = col;
}
if (buffer != null)
{
IVsTextLines textLines = buffer as IVsTextLines;
if (textLines != null)
{
AsmHighlighterScanner scanner = AsmHighlighterScannerFactory.GetScanner(textLines);
Scanner lexer = scanner.Lexer;
int maxColumn;
textLines.GetLengthOfLine(line, out maxColumn);
string lineToParse;
textLines.GetLineText(line, 0, line, maxColumn, out lineToParse);
// Setup token scanner
lexer.SetSource(lineToParse, 0);
int state = 0;
int start, end;
AsmHighlighterToken token = (AsmHighlighterToken)lexer.GetNext(ref state, out start, out end);
// Set Not a valid breakpoint
retval = VSConstants.S_FALSE;
switch (token)
{
case AsmHighlighterToken.INSTRUCTION:
case AsmHighlighterToken.FPUPROCESSOR:
case AsmHighlighterToken.SIMDPROCESSOR:
if (pCodeSpan != null)
{
// Breakpoint covers the whole line (including comment)
pCodeSpan[0].iEndIndex = maxColumn;
}
// Set valid breakpoint
retval = VSConstants.S_OK;
break;
}
}
}
return(retval);
}
public static List <EditSpan> ReformatCode(IVsTextLines pBuffer, TextSpan span, int tabSize)
{
string filePath = FilePathUtilities.GetFilePath(pBuffer);
// Return dynamic scanner based on file extension
List <EditSpan> changeList = new List <EditSpan>();
string codeToFormat;
int endOfFirstLineIndex;
// Get 1st line and parse custom define
pBuffer.GetLengthOfLine(0, out endOfFirstLineIndex);
pBuffer.GetLineText(0, 0, 0, endOfFirstLineIndex, out codeToFormat);
Dictionary <string, string> defines = ParseDefineLine(codeToFormat);
AsmHighlighterScanner scanner = AsmHighlighterScannerFactory.GetScanner(filePath);
Scanner lexer = scanner.Lexer;
// Iterate on each line of the selection to format
for (int line = span.iStartLine; line <= span.iEndLine; line++)
{
int lineLength;
pBuffer.GetLengthOfLine(line, out lineLength);
pBuffer.GetLineText(line, 0, line, lineLength, out codeToFormat);
string codeToAssemble = ConvertToFasm(lexer, codeToFormat, defines);
lexer.SetSource(codeToFormat, 0);
int state = 0;
int start, end;
bool instructionFound = false, commentFound = false;
int commentStart = 0;
AsmHighlighterToken token = (AsmHighlighterToken)lexer.GetNext(ref state, out start, out end);
while (token != AsmHighlighterToken.EOF)
{
switch (token)
{
case AsmHighlighterToken.INSTRUCTION:
case AsmHighlighterToken.FPUPROCESSOR:
case AsmHighlighterToken.SIMDPROCESSOR:
instructionFound = true;
break;
case AsmHighlighterToken.COMMENT_LINE:
if (!commentFound)
{
commentFound = true;
commentStart = start;
}
break;
}
if (instructionFound && commentFound)
{
byte[] buffer = null;
try
{
buffer = ManagedFasm.Assemble(codeToAssemble);
}
catch (Exception ex)
{
// Unable to parse instruction... skip
}
if (buffer != null)
{
}
TextSpan editTextSpan = new TextSpan();
editTextSpan.iStartLine = line;
editTextSpan.iEndLine = line;
editTextSpan.iStartIndex = commentStart;
editTextSpan.iEndIndex = commentStart + 1;
if ((codeToFormat.Length - commentStart) > 2 && codeToFormat.Substring(commentStart, 2) == ";#")
{
editTextSpan.iEndIndex = editTextSpan.iEndIndex + 2;
}
string text = ";#" + ((buffer == null) ? "?" : string.Format("{0:X}", buffer.Length));
changeList.Add(new EditSpan(editTextSpan, text));
break;
}
token = (AsmHighlighterToken)lexer.GetNext(ref state, out start, out end);
}
}
return(changeList);
}
public int ComputeDataTipOnContext(IVsTextLines textLines, int line, int col, ref TextSpan span, out string tipText)
{
int result = VSConstants.E_NOTIMPL;
tipText = "";
span.iStartLine = line;
span.iStartIndex = col;
span.iEndLine = line;
span.iEndIndex = col;
if (textLines != null)
{
// Parse tokens and search for the token below the selection
AsmHighlighterScanner scanner = AsmHighlighterScannerFactory.GetScanner(textLines);
string lineOfCode;
List <TokenInfo> tokenInfoList = scanner.ParseLine(textLines, line, int.MaxValue, out lineOfCode);
TokenInfo selectedTokenInfo = null;
foreach (TokenInfo info in tokenInfoList)
{
if (col >= info.StartIndex && col <= info.EndIndex)
{
selectedTokenInfo = info;
break;
}
}
// If a valid token was found, handle it
if (selectedTokenInfo != null)
{
AsmHighlighterToken token = (AsmHighlighterToken)selectedTokenInfo.Token;
// Display only tip for REGISTER or IDENTIFIER
if ((token & AsmHighlighterToken.IS_REGISTER) != 0 || (token & AsmHighlighterToken.IS_NUMBER) != 0 || token == AsmHighlighterToken.IDENTIFIER)
{
result = VSConstants.S_OK;
tipText = lineOfCode.Substring(selectedTokenInfo.StartIndex,
selectedTokenInfo.EndIndex - selectedTokenInfo.StartIndex + 1);
if ((token & AsmHighlighterToken.IS_REGISTER) != 0)
{
tipText = tipText.ToLower();
if (token == AsmHighlighterToken.REGISTER_FPU)
{
tipText = tipText.Replace("(", "");
tipText = tipText.Replace(")", "");
}
}
span.iStartIndex = selectedTokenInfo.StartIndex;
span.iEndIndex = selectedTokenInfo.EndIndex + 1;
// If in debugging mode, display the value
// (This is a workaround instead of going through the Debugger.ExpressionEvaluator long way...)
// TODO: ExpressionEvaluator is not working, this is a workaround to display values
if (IsDebugging() && (((token & AsmHighlighterToken.IS_REGISTER) != 0) || token == AsmHighlighterToken.IDENTIFIER))
{
Expression expression = vs.Debugger.GetExpression(tipText, true, 1000);
string valueStr = "";
// Make a friendly printable version for float/double and numbers
try
{
if (expression.Type.Contains("double"))
{
double value = double.Parse(expression.Value);
valueStr = string.Format("{0:r}", value);
}
else
{
long value = long.Parse(expression.Value);
valueStr = string.Format("0x{0:X8}", value);
}
}
catch
{
}
// Print a printable version only if it's valid
if (string.IsNullOrEmpty(valueStr))
{
tipText = string.Format("{0} = {1}", tipText, expression.Value);
}
else
{
tipText = string.Format("{0} = {1} = {2}", tipText, valueStr, expression.Value);
}
}
}
}
}
return(result);
}
