+ /// find a paragraph before \p par with the given \p depth, if such
+ /// a paragraph cannot be found, \p par is returned
+ pit_type depthHook(pit_type par, depth_type depth) const;
+ /// find a paragraph before \p par with depth less than the
+ /// depth of \p par. If such paragraph cannot be found because
+ /// \p par already has depth 0, lastpar + 1 is returned. If
+ /// such paragraph cannot be found because there isn't a par
+ /// with less depth before this one, \p par is returned.
+ pit_type outerHook(pit_type par) const;
+ /// Is it the first par with same depth and layout?
+ bool isFirstInSequence(pit_type par) const;
+ /// Is this paragraph in the table of contents?
+ int getTocLevel(pit_type par) const;
+ /// Get the font of the "environment" of paragraph \p par_offset in \p pars.
+ /// All font changes of the paragraph are relative to this font.
+ Font const outerFont(pit_type par_offset) const;