void RemoveNextLineUnindentBlocks()
{
while (block != null && block.PopOnNextLine)
block = block.Parent;
var curBlock = block;
while (curBlock != null)
{
if (curBlock.Parent != null && curBlock.Parent.PopOnNextLine)
curBlock.Parent = curBlock.Parent.Parent;
curBlock = curBlock.Parent;
}
}
CodeBlock PushBlock(CodeBlock previousBlock=null)
{
return block = new CodeBlock {
previousBlock=previousBlock,
LastPreBlockIdentifier=Lexer.LastToken ?? null,
Parent=block,
StartLocation = t.Location
};
}
public CodeBlock CalculateIndentation(TextReader code, int line)
{
block = null;
Lexer = new Lexer(code);
maxLine = line;
Lexer.NextToken();
DToken lastToken = null;
while (!Lexer.IsEOF)
{
if (t != null && la.line > t.line && t.line < maxLine)
{
RemoveNextLineUnindentBlocks();
}
lastToken = t;
Lexer.NextToken();
if (IsEOF)
{
if (la.line > maxLine || Lexer.IsEOF)
lastLineIndent = null;
if (t.line>maxLine)
break;
}
/*
* if(..)
* for(...)
* while(...)
* foo();
* // No indentation anymore!
*/
if (t.Kind == DTokens.Comma || t.Kind == DTokens.Semicolon && maxLine>t.line && la.line > t.line)
{
if (block == null)
continue;
if (block.Reason == CodeBlock.IndentReason.UnfinishedStatement)
PopBlock();
while (
block != null &&
block.Reason == CodeBlock.IndentReason.SingleLineStatement &&
!IsSemicolonContainingStatement)
PopBlock();
}
// (,[,{
else if (t.Kind == DTokens.OpenParenthesis ||
t.Kind == DTokens.OpenSquareBracket ||
t.Kind == DTokens.OpenCurlyBrace)
{
var tBlock = block;
if (block != null && (
block.Reason == CodeBlock.IndentReason.SingleLineStatement ||
block.Reason == CodeBlock.IndentReason.UnfinishedStatement))
{
PopBlock();
}
PushBlock(tBlock).BlockStartToken = t.Kind;
}
// ),],}
else if (t.Kind == DTokens.CloseParenthesis ||
t.Kind == DTokens.CloseSquareBracket ||
t.Kind == DTokens.CloseCurlyBrace)
{
if (t.Kind == DTokens.CloseCurlyBrace)
{
while (block != null && !block.IsClampBlock)
PopBlock();
/*
* If the last token was on this line OR if it's eof but on the following line,
* decrement indent on next line only.
*/
if (lastToken!=null && lastToken.line == t.line && block != null)
{
block.PopOnNextLine = true;
}
else
PopBlock();
}
else
{
while (block != null && !block.IsClampBlock)
PopBlock();
if (lastLineIndent == null && (block == null || block.StartLocation.Line < t.line))
lastLineIndent = block;
if (t.Kind == DTokens.CloseParenthesis &&
block != null &&
block.BlockStartToken == DTokens.OpenParenthesis &&
la.Kind!=DTokens.OpenCurlyBrace)
{
block=block.previousBlock;
continue;
}
else
PopBlock();
if (t.Kind == DTokens.CloseParenthesis &&
block != null &&
block.BlockStartToken == DTokens.OpenParenthesis)
{
if (la.Kind == DTokens.OpenCurlyBrace && la.line > t.line)
PopBlock();
else if (block!=null && block.LastPreBlockIdentifier!=null && IsPreStatementToken(block.LastPreBlockIdentifier.Kind))
block = block.previousBlock;
}
}
}
else if ((DParser.IsAttributeSpecifier(t.Kind, la.Kind) && la.Kind==DTokens.Colon) || t.Kind == DTokens.Case || t.Kind==DTokens.Default)
{
while (block != null && block.BlockStartToken!=DTokens.OpenCurlyBrace)
PopBlock();
PushBlock().Reason = CodeBlock.IndentReason.StatementLabel;
HadCaseStatementBegin = true;
}
else if (t.Kind == DTokens.Colon)
{
if (HadCaseStatementBegin)
{
while (block != null && block.Reason != CodeBlock.IndentReason.StatementLabel)
PopBlock();
HadCaseStatementBegin = false;
}
}
// Don't indent these in front of function bodies
else if (t.Kind == DTokens.In || t.Kind == DTokens.Out || t.Kind == DTokens.Body)
{
if (block != null && block.Reason == CodeBlock.IndentReason.UnfinishedStatement)
PopBlock();
}
else if (block == null ||
block.Reason != CodeBlock.IndentReason.UnfinishedStatement &&
block.Reason != CodeBlock.IndentReason.SingleLineStatement)
PushBlock().Reason = CodeBlock.IndentReason.UnfinishedStatement;
}
if (t!=null && la.line > t.line)
RemoveNextLineUnindentBlocks();
return lastLineIndent ?? block;
}
CodeBlock PopBlock()
{
if (block != null)
return block = block.Parent;
return null;
}
public CodeBlock CalculateIndentation(TextReader code, int line)
{
block = null;
Lexer = new Lexer(code);
maxLine = line;
Lexer.NextToken();
DToken lastToken = null;
while (!Lexer.IsEOF)
{
if (t != null && la.Line > t.Line && t.Line < maxLine)
{
RemoveNextLineUnindentBlocks();
}
lastToken = t;
Lexer.NextToken();
if (IsEOF)
{
if (la.Line > maxLine || Lexer.IsEOF)
{
lastLineIndent = null;
}
if (t.Line > maxLine)
{
break;
}
}
/*
* if(..)
* for(...)
* while(...)
* foo();
* // No indentation anymore!
*/
if (t.Kind == DTokens.Comma || t.Kind == DTokens.Semicolon && maxLine > t.Line && la.Line > t.Line)
{
if (block == null)
{
continue;
}
if (block.Reason == CodeBlock.IndentReason.UnfinishedStatement)
{
PopBlock();
}
while (
block != null &&
block.Reason == CodeBlock.IndentReason.SingleLineStatement &&
!IsSemicolonContainingStatement)
{
PopBlock();
}
}
// (,[,{
else if (t.Kind == DTokens.OpenParenthesis ||
t.Kind == DTokens.OpenSquareBracket ||
t.Kind == DTokens.OpenCurlyBrace)
{
var tBlock = block;
if (block != null && (
block.Reason == CodeBlock.IndentReason.SingleLineStatement ||
block.Reason == CodeBlock.IndentReason.UnfinishedStatement))
{
PopBlock();
}
PushBlock(tBlock).BlockStartToken = t.Kind;
}
// ),],}
else if (t.Kind == DTokens.CloseParenthesis ||
t.Kind == DTokens.CloseSquareBracket ||
t.Kind == DTokens.CloseCurlyBrace)
{
if (t.Kind == DTokens.CloseCurlyBrace)
{
while (block != null && !block.IsClampBlock)
{
PopBlock();
}
/*
* If the last token was on this line OR if it's eof but on the following line,
* decrement indent on next line only.
*/
if (lastToken != null && lastToken.Line == t.Line && block != null)
{
block.PopOnNextLine = true;
}
else
{
PopBlock();
}
}
else
{
while (block != null && !block.IsClampBlock)
{
PopBlock();
}
if (lastLineIndent == null && (block == null || block.StartLocation.Line < t.Line))
{
lastLineIndent = block;
}
if (t.Kind == DTokens.CloseParenthesis &&
block != null &&
block.BlockStartToken == DTokens.OpenParenthesis &&
la.Kind != DTokens.OpenCurlyBrace)
{
block = block.previousBlock;
continue;
}
else
{
PopBlock();
}
if (t.Kind == DTokens.CloseParenthesis &&
block != null &&
block.BlockStartToken == DTokens.OpenParenthesis)
{
if (la.Kind == DTokens.OpenCurlyBrace && la.Line > t.Line)
{
PopBlock();
}
else if (block != null && block.LastPreBlockIdentifier != null && IsPreStatementToken(block.LastPreBlockIdentifier.Kind))
{
block = block.previousBlock;
}
}
}
}
else if ((DParser.IsAttributeSpecifier(t.Kind, la.Kind) && la.Kind == DTokens.Colon) || t.Kind == DTokens.Case || t.Kind == DTokens.Default)
{
while (block != null && block.BlockStartToken != DTokens.OpenCurlyBrace)
{
PopBlock();
}
PushBlock().Reason = CodeBlock.IndentReason.StatementLabel;
HadCaseStatementBegin = true;
}
else if (t.Kind == DTokens.Colon)
{
if (HadCaseStatementBegin)
{
while (block != null && block.Reason != CodeBlock.IndentReason.StatementLabel)
{
PopBlock();
}
HadCaseStatementBegin = false;
}
}
// Don't indent these in front of function bodies
else if (t.Kind == DTokens.In || t.Kind == DTokens.Out || t.Kind == DTokens.Body)
{
if (block != null && block.Reason == CodeBlock.IndentReason.UnfinishedStatement)
{
PopBlock();
}
}
else if (block == null ||
block.Reason != CodeBlock.IndentReason.UnfinishedStatement &&
block.Reason != CodeBlock.IndentReason.SingleLineStatement)
{
PushBlock().Reason = CodeBlock.IndentReason.UnfinishedStatement;
}
}
if (t != null && la.Line > t.Line)
{
RemoveNextLineUnindentBlocks();
}
return(lastLineIndent ?? block);
}
