static void output_indent_if_needed(void)
{
if (at_line_start)
{
at_line_start = FALSE;
output_indentation();
}
}
virtual int_type
put (char_type c)
{
int_type result = traits_type::to_int_type (c);
try
{
bool defaulting = false;
if (!hold_.empty () && hold_.back () == '(')
{
// We don't need to hold it any more.
unbuffer ();
if (c == '\n')
indentation_.push (indentation_.top () + spaces_);
else
indentation_.push (position_);
}
switch (c)
{
case '\n':
{
hold_.push_back (c);
position_ = 0; // Starting a new line.
if (construct_ == JAVA_COMMENT)
{
//std::cerr << "end comment" << endl;
construct_ = OTHER;
}
break;
}
case '{':
{
ensure_new_line ();
output_indentation ();
result = write (c);
ensure_new_line ();
indentation_.push (indentation_.top () + spaces_);
break;
}
case '}':
{
if (indentation_.size () > 1)
indentation_.pop ();
// Reduce multiple newlines to one.
while (hold_.size () > 1)
{
typename Hold::reverse_iterator i = hold_.rbegin ();
if (*i == '\n' && *(i + 1) == '\n')
hold_.pop_back ();
else
break;
}
ensure_new_line ();
output_indentation ();
hold_.push_back (c);
// Add newline after '}'.
//
ensure_new_line ();
break;
}
case ';':
{
if (paren_balance_ != 0)
{
// We are inside for (;;) statement. Nothing to do here.
//
defaulting = true;
}
else if (construct_ != STRING_LITERAL && construct_ != CHAR_LITERAL)
{
output_indentation ();
result = write (c);
ensure_new_line ();
}
break;
}
case '\\':
{
if (construct_ != JAVA_COMMENT)
{
output_indentation ();
hold_.push_back (c);
position_++;
}
else
defaulting = true;
break;
}
case '\"':
{
if (construct_ != JAVA_COMMENT &&
(hold_.empty () || hold_.back () != '\\'))
{
// not escape sequence
if (construct_ == STRING_LITERAL) construct_ = OTHER;
else construct_ = STRING_LITERAL;
}
defaulting = true;
break;
}
case '\'':
{
if (construct_ != JAVA_COMMENT &&
(hold_.empty () || hold_.back () != '\\'))
{
// not escape sequence
if (construct_ == CHAR_LITERAL) construct_ = OTHER;
else
{
//std::cerr << "char literal" << endl;
construct_ = CHAR_LITERAL;
}
}
defaulting = true;
break;
}
case '(':
{
if (construct_ == OTHER)
{
// Hold it so that we can see what's coming next.
//
output_indentation ();
hold_.push_back (c);
position_++;
paren_balance_++;
}
else
defaulting = true;
break;
}
case ')':
{
if (construct_ == OTHER)
{
if (indentation_.size () > 1)
indentation_.pop ();
if (paren_balance_ > 0)
paren_balance_--;
}
defaulting = true;
break;
}
case '/':
{
if (construct_ == OTHER)
{
if (!hold_.empty () && hold_.back () == '/')
{
construct_ = JAVA_COMMENT;
//std::cerr << "start comment" << endl;
defaulting = true;
}
else
{
output_indentation ();
hold_.push_back (c);
position_++;
}
}
else
{
defaulting = true;
}
break;
}
default:
{
defaulting = true;
break;
}
}
if (defaulting)
{
output_indentation ();
result = write (c);
position_++;
}
}
catch (Full const&)
{
result = traits_type::eof ();
}
return result;
}