-struct FontTag : public StartTag
-{
- ///
- explicit FontTag(FontTypes type);
- ///
- FontTag const * asFontTag() const { return this; }
- ///
- bool operator==(StartTag const &) const;
- ///
- FontTypes font_type_;
-};
-
-
-///
-struct EndFontTag : public EndTag
-{
- ///
- explicit EndFontTag(FontTypes type);
- ///
- EndFontTag const * asFontTag() const { return this; }
- ///
- FontTypes font_type_;
-};
-
-
-// trivial struct for output of newlines
-struct CR{};
-
-} // namespace html
-
-class XHTMLStream {
-public:
- ///
- explicit XHTMLStream(odocstream & os);
- ///
- odocstream & os() { return os_; }
- ///
- // int & tab() { return tab_; }
- /// closes any font tags that are eligible to be closed,
- /// i.e., last on the tag_stack_.
- /// \return false if there are open font tags we could not close.
- /// because they are "blocked" by open non-font tags on the stack.
- bool closeFontTags();
- /// call at start of paragraph. sets a mark so we know what tags
- /// to close at the end.
- void startParagraph(bool keep_empty);
- /// call at end of paragraph to clear that mark. note that this
- /// will also close any tags still open.
- void endParagraph();
- ///
- XHTMLStream & operator<<(docstring const &);
- ///
- XHTMLStream & operator<<(const char *);
- ///
- XHTMLStream & operator<<(char_type);
- ///
- XHTMLStream & operator<<(int);
- ///
- XHTMLStream & operator<<(char);
- ///
- XHTMLStream & operator<<(html::StartTag const &);
- ///
- XHTMLStream & operator<<(html::EndTag const &);
- ///
- XHTMLStream & operator<<(html::CompTag const &);
- ///
- XHTMLStream & operator<<(html::ParTag const &);
- ///
- XHTMLStream & operator<<(html::FontTag const &);
- ///
- XHTMLStream & operator<<(html::CR const &);
- ///
- enum EscapeSettings {
- ESCAPE_NONE,
- ESCAPE_AND, // meaning &
- ESCAPE_ALL // meaning <, >, &, at present
- };
- /// Sets what we are going to escape on the NEXT write.
- /// Everything is reset for the next time.
- XHTMLStream & operator<<(EscapeSettings);
-#if 0
- /// This routine is for debugging the tag stack, etc. Code
- /// for it is disabled by default, however, so you will need
- /// to enable it if you want to use it.
- void dumpTagStack(std::string const & msg) const;
-#endif
-private:
- ///
- void clearTagDeque();
- ///
- bool isTagOpen(html::StartTag const &) const;
- ///
- bool isTagOpen(html::EndTag const &) const;
- ///
- bool isTagPending(html::StartTag const &) const;
- ///
- void writeError(std::string const &) const;
- ///
- odocstream & os_;
- ///
- 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_;
-};