void Push(char ch)
{
if (readPreprocessorExpression)
{
wordBuf.Append(ch);
}
if (inside.HasFlag(Inside.VerbatimString) && pc == '"' && ch != '"')
{
inside &= ~Inside.String;
}
switch (ch)
{
case '#':
if (IsLineStart)
{
inside = Inside.PreProcessor;
}
break;
case '/':
if (IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
if (pc == '/')
{
if (inside.HasFlag(Inside.Comment))
{
inside |= Inside.DocComment;
}
else
{
inside |= Inside.Comment;
}
}
break;
case '*':
if (IsInStringOrChar || IsInComment || IsInPreProcessorComment)
{
break;
}
if (pc == '/')
{
inside |= Inside.MultiLineComment;
}
break;
case '\t':
var nextTabStop = (col - 1 + textEditorOptions.IndentSize) / textEditorOptions.IndentSize;
col = 1 + nextTabStop * textEditorOptions.IndentSize;
return;
case '\r':
if (readPreprocessorExpression)
{
if (!eval(wordBuf.ToString()))
{
inside |= Inside.PreProcessorComment;
}
}
inside &= ~(Inside.Comment | Inside.String | Inside.CharLiteral | Inside.PreProcessor);
CheckKeyword(wordBuf.ToString());
wordBuf.Length = 0;
if (addContinuation)
{
indent.Push(IndentType.Continuation);
}
thisLineindent = indent.Clone();
addContinuation = false;
IsLineStart = true;
readPreprocessorExpression = false;
col = 1;
line++;
break;
case '\n':
if (pc == '\r')
{
break;
}
goto case '\r';
case '"':
if (IsInComment || IsInPreProcessorComment)
{
break;
}
if (inside.HasFlag(Inside.String))
{
if (pc != '\\')
{
inside &= ~Inside.String;
}
break;
}
if (pc == '@')
{
inside |= Inside.VerbatimString;
}
else
{
inside |= Inside.String;
}
break;
case '<':
case '[':
case '(':
if (IsInComment || IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
parenStack.Push(new TextLocation(line, col));
popNextParenBlock = true;
indent.Push(IndentType.Block);
break;
case '>':
case ']':
case ')':
if (IsInComment || IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
if (popNextParenBlock)
{
parenStack.Pop();
}
indent.Pop();
indent.ExtraSpaces = 0;
break;
case ',':
if (IsInComment || IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
if (parenStack.Count > 0 && parenStack.Peek().Line == line)
{
indent.Pop();
popNextParenBlock = false;
indent.ExtraSpaces = parenStack.Peek().Column - 1 - thisLineindent.CurIndent;
}
break;
case '{':
if (IsInComment || IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
currentBody = nextBody;
if (indent.Count > 0 && indent.Peek() == IndentType.Continuation)
{
indent.Pop();
}
addContinuation = false;
AddIndentation(currentBody);
break;
case '}':
if (IsInComment || IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
indent.Pop();
if (indent.Count > 0 && indent.Peek() == IndentType.Continuation)
{
indent.Pop();
}
break;
case ';':
if (IsInComment || IsInStringOrChar || IsInPreProcessorComment)
{
break;
}
if (indent.Count > 0 && indent.Peek() == IndentType.Continuation)
{
indent.Pop();
}
break;
case '\'':
if (IsInComment || inside.HasFlag(Inside.String) || IsInPreProcessorComment)
{
break;
}
if (inside.HasFlag(Inside.CharLiteral))
{
if (pc != '\\')
{
inside &= ~Inside.CharLiteral;
}
}
else
{
inside &= Inside.CharLiteral;
}
break;
}
if (!IsInComment && !IsInStringOrChar && !readPreprocessorExpression)
{
if ((wordBuf.Length == 0 ? char.IsLetter(ch) : char.IsLetterOrDigit(ch)) || ch == '_')
{
wordBuf.Append(ch);
}
else
{
if (inside.HasFlag(Inside.PreProcessor))
{
if (wordBuf.ToString() == "endif")
{
inside &= ~Inside.PreProcessorComment;
}
else if (wordBuf.ToString() == "if")
{
readPreprocessorExpression = true;
}
else if (wordBuf.ToString() == "elif")
{
inside &= ~Inside.PreProcessorComment;
readPreprocessorExpression = true;
}
}
else
{
CheckKeyword(wordBuf.ToString());
}
wordBuf.Length = 0;
}
}
if (addContinuation)
{
indent.Push(IndentType.Continuation);
addContinuation = false;
}
IsLineStart &= ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r';
pc = ch;
if (ch != '\n' && ch != '\r')
{
col++;
}
}