public bool FixLineStart(Ide.Editor.TextEditor textEditorData, ICSharpCode.NRefactory6.CSharp.IStateMachineIndentEngine stateTracker, int lineNumber)
{
if (lineNumber > 1)
{
var line = textEditorData.GetLine(lineNumber);
if (line == null)
{
return(false);
}
var prevLine = textEditorData.GetLine(lineNumber - 1);
if (prevLine == null)
{
return(false);
}
string trimmedPreviousLine = textEditorData.GetTextAt(prevLine).TrimStart();
//xml doc comments
//check previous line was a doc comment
//check there's a following line?
if (trimmedPreviousLine.StartsWith("///", StringComparison.Ordinal))
{
if (textEditorData.GetTextAt(line.Offset, line.Length).TrimStart().StartsWith("///", StringComparison.Ordinal))
{
return(false);
}
//check that the newline command actually inserted a newline
textEditorData.EnsureCaretIsNotVirtual();
var nextLineSegment = textEditorData.GetLine(lineNumber + 1);
string nextLine = nextLineSegment != null?textEditorData.GetTextAt(nextLineSegment).TrimStart() : "";
if (trimmedPreviousLine.Length > "///".Length || nextLine.StartsWith("///", StringComparison.Ordinal))
{
var insertionPoint = textEditorData.CaretOffset;
textEditorData.InsertText(insertionPoint, "/// ");
textEditorData.CaretOffset = insertionPoint + "/// ".Length;
return(true);
}
//multi-line comments
}
else if (stateTracker.IsInsideMultiLineComment)
{
if (textEditorData.GetTextAt(line.Offset, line.Length).TrimStart().StartsWith("*", StringComparison.Ordinal))
{
return(false);
}
textEditorData.EnsureCaretIsNotVirtual();
string commentPrefix = string.Empty;
if (trimmedPreviousLine.StartsWith("* ", StringComparison.Ordinal))
{
commentPrefix = "* ";
}
else if (trimmedPreviousLine.StartsWith("/**", StringComparison.Ordinal) || trimmedPreviousLine.StartsWith("/*", StringComparison.Ordinal))
{
commentPrefix = " * ";
}
else if (trimmedPreviousLine.StartsWith("*", StringComparison.Ordinal))
{
commentPrefix = "*";
}
int indentSize = line.GetIndentation(textEditorData).Length;
var insertedText = prevLine.GetIndentation(textEditorData) + commentPrefix;
textEditorData.ReplaceText(line.Offset, indentSize, insertedText);
textEditorData.CaretOffset = line.Offset + insertedText.Length;
return(true);
}
else if (wasInStringLiteral)
{
var lexer = new ICSharpCode.NRefactory.CSharp.Completion.CSharpCompletionEngineBase.MiniLexer(textEditorData.GetTextAt(0, prevLine.EndOffset).TrimEnd());
lexer.Parse();
if (!lexer.IsInString)
{
return(false);
}
textEditorData.EnsureCaretIsNotVirtual();
var insertedText = "\" +";
textEditorData.InsertText(prevLine.Offset + prevLine.Length, insertedText);
var lineOffset = line.Offset + insertedText.Length;
int indentSize = textEditorData.CaretOffset - lineOffset;
insertedText = prevLine.GetIndentation(textEditorData) + (trimmedPreviousLine.StartsWith("\"", StringComparison.Ordinal) ? "" : "\t") + "\"";
textEditorData.ReplaceText(lineOffset, indentSize, insertedText);
return(true);
}
}
return(false);
}
