public static string CalculateIndent(TextReader code, int line, bool tabsToSpaces = false, int indentWidth = 4)
{
if (line < 2)
{
return(string.Empty);
}
var eng = new IndentEngine(DFormattingOptions.CreateDStandard(), tabsToSpaces, indentWidth);
int curLine = 1;
const int lf = (int)'\n';
const int cr = (int)'\r';
int c;
while ((c = code.Read()) != -1)
{
if (c == lf || c == cr)
{
if (c == cr && code.Peek() == lf)
{
code.Read();
}
if (++curLine > line)
{
break;
}
}
eng.Push((char)c);
}
return(eng.ThisLineIndent);
}
public static string CalculateIndent(TextReader code, int line, bool tabsToSpaces = false, int indentWidth = 4)
{
if(line < 2)
return string.Empty;
var eng = new IndentEngine(DFormattingOptions.CreateDStandard(), tabsToSpaces, indentWidth);
int curLine = 1;
const int lf = (int)'\n';
const int cr = (int)'\r';
int c;
while((c = code.Read()) != -1)
{
if(c == lf || c == cr)
{
if(c == cr && code.Peek() == lf)
code.Read();
if(++curLine > line)
break;
}
eng.Push((char)c);
}
return eng.ThisLineIndent;
}
public static void CorrectIndent(TextReader code, int startOffset, int endOffset, Action<int, int, string> documentReplace, DFormattingOptions options = null, ITextEditorOptions textStyle = null, bool formatLastLine = true)
{
textStyle = textStyle ?? TextEditorOptions.Default;
var eng = new IndentEngine(options ?? DFormattingOptions.CreateDStandard(), textStyle.TabsToSpaces, textStyle.IndentSize, textStyle.KeepAlignmentSpaces);
var replaceActions = new List<DFormattingVisitor.TextReplaceAction>();
int originalIndent = 0;
bool hadLineBreak = true;
int n = 0;
for (int i = 0; i <= endOffset && (n = code.Read()) != -1; i++)
{
if(n == '\r' || n == '\n')
{
if (i >= startOffset && !eng.LineBeganInsideString)
replaceActions.Add(new DFormattingVisitor.TextReplaceAction(eng.Position - eng.LineOffset, originalIndent, eng.ThisLineIndent));
hadLineBreak = true;
originalIndent = 0;
if (code.Peek() == '\n')
{
eng.Push((char)code.Read());
i++;
}
}
else if(hadLineBreak)
{
if(n == ' ' || n== '\t')
originalIndent++;
else
hadLineBreak = false;
// If there's code left, format the last line of the selection either
if (i == endOffset && formatLastLine)
endOffset++;
}
eng.Push((char)n);
}
// Also indent the last line if we're at the EOF.
if (code.Peek() == -1 || (formatLastLine && n != '\r' && n != '\n'))
{
if(!eng.LineBeganInsideString)
replaceActions.Add(new DFormattingVisitor.TextReplaceAction(eng.Position - eng.LineOffset, originalIndent, eng.ThisLineIndent));
}
// Perform replacements from the back of the document to the front - to ensure offset consistency
for(int k = replaceActions.Count - 1; k>=0; k--)
{
var rep = replaceActions[k];
if(rep.RemovalLength > 0 || rep.NewText.Length != 0)
documentReplace(rep.Offset, rep.RemovalLength, rep.NewText);
}
}
public static void CorrectIndent(TextReader code, int startOffset, int endOffset, Action <int, int, string> documentReplace, DFormattingOptions options = null, ITextEditorOptions textStyle = null, bool formatLastLine = true)
{
textStyle = textStyle ?? TextEditorOptions.Default;
var eng = new IndentEngine(options ?? DFormattingOptions.CreateDStandard(), textStyle.TabsToSpaces, textStyle.IndentSize, textStyle.KeepAlignmentSpaces);
var replaceActions = new List <DFormattingVisitor.TextReplaceAction>();
int originalIndent = 0;
bool hadLineBreak = true;
int n = 0;
for (int i = 0; i <= endOffset && (n = code.Read()) != -1; i++)
{
if (n == '\r' || n == '\n')
{
if (i >= startOffset && !eng.LineBeganInsideString)
{
replaceActions.Add(new DFormattingVisitor.TextReplaceAction(eng.Position - eng.LineOffset, originalIndent, eng.ThisLineIndent));
}
hadLineBreak = true;
originalIndent = 0;
if (code.Peek() == '\n')
{
eng.Push((char)code.Read());
i++;
}
}
else if (hadLineBreak)
{
if (n == ' ' || n == '\t')
{
originalIndent++;
}
else
{
hadLineBreak = false;
}
// If there's code left, format the last line of the selection either
if (i == endOffset && formatLastLine)
{
endOffset++;
}
}
eng.Push((char)n);
}
// Also indent the last line if we're at the EOF.
if (code.Peek() == -1 || (formatLastLine && n != '\r' && n != '\n'))
{
if (!eng.LineBeganInsideString)
{
replaceActions.Add(new DFormattingVisitor.TextReplaceAction(eng.Position - eng.LineOffset, originalIndent, eng.ThisLineIndent));
}
}
// Perform replacements from the back of the document to the front - to ensure offset consistency
for (int k = replaceActions.Count - 1; k >= 0; k--)
{
var rep = replaceActions[k];
if (rep.RemovalLength > 0 || rep.NewText.Length != 0)
{
documentReplace(rep.Offset, rep.RemovalLength, rep.NewText);
}
}
}