#define OUTPUT_XHTML_H
#include "LayoutEnums.h"
+
#include "support/docstream.h"
+#include "support/shared_ptr.h"
#include "support/strfwd.h"
#include <deque>
std::string attr_;
};
+
// trivial struct for output of newlines
struct CR{};
///
bool isTagOpen(std::string const &) const;
///
+ bool isTagPending(std::string const &) const;
+ ///
void writeError(std::string const &) const;
///
odocstream & os_;
- ///
- typedef std::deque<html::StartTag> TagStack;
- /// holds start tags until we know there is content in them.
- TagStack pending_tags_;
- /// remembers the history, so we can make sure we nest properly.
- TagStack tag_stack_;
///
EscapeSettings escape_;
+ // What we would really like to do here is simply use a
+ // deque<StartTag>. But we want to store both StartTags and
+ // sub-classes thereof on this stack, which means we run into the
+ // so-called polymorphic class problem with the STL. We therefore have
+ // to use a deque<StartTag *>, which leads to the question who will
+ // own these pointers and how they will be deleted, so we use shared
+ // pointers.
+ ///
+ typedef shared_ptr<html::StartTag> TagPtr;
+ typedef std::deque<TagPtr> TagDeque;
+ ///
+ template <typename T>
+ shared_ptr<T> makeTagPtr(T const & tag)
+ { return shared_ptr<T>(new T(tag)); }
+ ///
+ TagDeque pending_tags_;
+ ///
+ TagDeque tag_stack_;
};
///