private void AppendTextBeforeToken()
{
int start = _tokens.Position > 0 ? _tokens.PreviousToken.End : 0;
int end = _tokens.IsEndOfStream() ? _textProvider.Length : _tokens.CurrentToken.Start;
string text = _textProvider.GetText(TextRange.FromBounds(start, end));
if (string.IsNullOrWhiteSpace(text))
{
// Append any user-entered whitespace. We preserve
// line breaks but trim unnecessary spaces such as
// on empty lines. We must, however, preserve
// user indentation in long argument lists and
// in expresions split into multiple lines.
// We preserve user indentation of last token was
// open brace, square bracket, comma or an operator
bool preserveUserIndent = false;
if (_tokens.Position > 0)
{
switch (_tokens.PreviousToken.TokenType)
{
case RTokenType.OpenBrace:
case RTokenType.OpenSquareBracket:
case RTokenType.OpenDoubleSquareBracket:
case RTokenType.Comma:
case RTokenType.Operator:
preserveUserIndent = true;
break;
}
}
_tb.CopyPrecedingLineBreaks(_textProvider, end);
if (preserveUserIndent)
{
int lastLineBreakIndex = text.LastIndexOfAny(CharExtensions.LineBreakChars);
if (lastLineBreakIndex >= 0)
{
text = text.Substring(lastLineBreakIndex + 1);
int textIndentInSpaces = IndentBuilder.TextIndentInSpaces(text, _options.TabSize);
text = IndentBuilder.GetIndentString(textIndentInSpaces, _indentBuilder.IndentType, _indentBuilder.TabSize);
_tb.AppendPreformattedText(text);
}
}
else
{
_tb.SoftIndent();
}
}
else
{
// If there is unrecognized text between tokens, append it verbatim
_tb.AppendPreformattedText(text);
}
}
private void AppendTextBeforeToken(bool preserveUserIndent = false)
{
int start = _tokens.Position > 0 ? _tokens.PreviousToken.End : 0;
int end = _tokens.IsEndOfStream() ? _textProvider.Length : _tokens.CurrentToken.Start;
string text = _textProvider.GetText(TextRange.FromBounds(start, end));
bool whitespaceOnly = string.IsNullOrWhiteSpace(text);
if (!preserveUserIndent && whitespaceOnly)
{
// Append any user-entered whitespace. We preserve line breaks but trim
// unnecessary spaces such as on empty lines. We must, however, preserve
// user indentation in long argument lists and in expresions split
// into multiple lines.
// We preserve user indentation of last token was
// open brace, square bracket, comma or an operator
if (_tokens.Position > 0)
{
switch (_tokens.PreviousToken.TokenType)
{
case RTokenType.OpenBrace:
case RTokenType.OpenSquareBracket:
case RTokenType.OpenDoubleSquareBracket:
case RTokenType.Comma:
case RTokenType.Operator:
preserveUserIndent = true;
break;
case RTokenType.Comment:
// Preserve user indent in argument lists
preserveUserIndent = _braceHandler.IsInArguments();
break;
default:
// If expression between scope start and the current point is incomplete,
// (i.e. we are in a middle of multiline expression) we want to preserve
// user-supplied indentation.
preserveUserIndent = !_expressionHelper.IsCompleteExpression(_tokens.Position);
break;
}
// Also preserve indent before the tokens below. This matter in long lists
// of arguments in functions or indexers and also before comments.
if (!preserveUserIndent)
{
switch (_tokens.CurrentToken.TokenType)
{
case RTokenType.CloseBrace:
case RTokenType.CloseSquareBracket:
case RTokenType.CloseDoubleSquareBracket:
case RTokenType.Comma:
case RTokenType.Operator:
case RTokenType.Comment:
preserveUserIndent = true;
break;
}
}
}
// Preserve line breaks user has entered.
_tb.CopyPrecedingLineBreaks(_textProvider, end);
if (preserveUserIndent)
{
// Construct indentation line based on the size of the user indent
// but using tabs or spaces per formatting options.
int lastLineBreakIndex = text.LastIndexOfAny(CharExtensions.LineBreakChars);
if (lastLineBreakIndex >= 0)
{
text = text.Substring(lastLineBreakIndex + 1);
int textIndentInSpaces = IndentBuilder.TextIndentInSpaces(text, _options.TabSize);
text = IndentBuilder.GetIndentString(textIndentInSpaces, _indentBuilder.IndentType, _indentBuilder.TabSize);
_tb.AppendPreformattedText(text);
}
}
else
{
_tb.SoftIndent();
}
}
else
{
// If there is unrecognized text between tokens, append it verbatim.
_tb.AppendPreformattedText(text);
}
}
