| # ========================================================= |
| # |
| # (c) 2004, RenderX |
| # |
| # Author: Alexander Peshkov <peshkov@renderx.com> |
| # |
| # Permission is granted to use this document, copy and |
| # modify free of charge, provided that every derived work |
| # bear a reference to the present document. |
| # |
| # This document contains a computer program written in |
| # XSL Transformations Language. It is published with no |
| # warranty of any kind about its usability, as a mere |
| # example of XSL technology. RenderX shall not be |
| # considered liable for any damage or loss of data caused |
| # by use of this program. |
| # |
| # ========================================================= |
| |
| namespace local = "" |
| default namespace fo = "http://www.w3.org/1999/XSL/Format" |
| namespace rx = "http://www.renderx.com/XSL/Extensions" |
| |
| include "elements.rnc" |
| |
| start = root |
| |
| # **************************************************************************************** |
| # Element structure for top-level elements |
| # **************************************************************************************** |
| # =============================================================== |
| # Root element. Contains everything, generates nothing. It has an |
| # id, a FO namespace prefix declaration, and other namespace |
| # declarations if used. |
| # =============================================================== |
| root = element fo:root { root.attlist, root.content } |
| root.content = |
| meta-info?, |
| layout-master-set, |
| declarations?, |
| outline?, |
| page-sequence+ |
| |
| # =============================================================== |
| # Document meta information - RenderX extension |
| # =============================================================== |
| meta-info = element rx:meta-info { meta-info.attlist, meta-info.content } |
| meta-info.content = meta-field+ |
| |
| meta-field = element rx:meta-field { meta-field.attlist, empty } |
| |
| # =============================================================== |
| # Color profile declarations |
| # =============================================================== |
| declarations = element fo:declarations { declarations.attlist, declarations.content } |
| declarations.content = color-profile+ |
| |
| color-profile = element fo:color-profile { color-profile.attlist, empty } |
| |
| # =============================================================== |
| # Bookmarks - RenderX extension |
| # =============================================================== |
| outline = element rx:outline { outline.attlist, outline.content } |
| outline.content = bookmark+ |
| |
| bookmark = element rx:bookmark { bookmark.attlist, bookmark.content } |
| bookmark.content = bookmark-label, bookmark* |
| |
| bookmark-label = element rx:bookmark-label { bookmark-label.attlist, bookmark-label.content } |
| bookmark-label.content = text |
| |
| # =============================================================== |
| # Layout-master-set. Contains a set of page-masters. |
| # Content model made more strict than in the spec, to enforce |
| # that a page-sequence-master be always accompanied by at least |
| # one simple-page-master. |
| # =============================================================== |
| layout-master-set = element fo:layout-master-set { layout-master-set.attlist, layout-master-set.content } |
| layout-master-set.content = page-sequence-master* & simple-page-master+ |
| |
| # =============================================================== |
| # Page sequence master |
| # =============================================================== |
| page-sequence-master = |
| element fo:page-sequence-master { |
| page-sequence-master.attlist, page-sequence-master.content |
| } |
| page-sequence-master.content = |
| (single-page-master-reference |
| | repeatable-page-master-reference |
| | repeatable-page-master-alternatives)+ |
| |
| # =============================================================== |
| # Sequence specifiers are predefined sequences of page masters |
| # that are used by page sequence master to construct a desired |
| # page collection. |
| # =============================================================== |
| single-page-master-reference = |
| element fo:single-page-master-reference { |
| single-page-master-reference.attlist, empty |
| } |
| |
| repeatable-page-master-reference = |
| element fo:repeatable-page-master-reference { |
| repeatable-page-master-reference.attlist, empty |
| } |
| |
| repeatable-page-master-alternatives = |
| element fo:repeatable-page-master-alternatives { |
| repeatable-page-master-alternatives.attlist, repeatable-page-master-alternatives.content |
| } |
| repeatable-page-master-alternatives.content = conditional-page-master-reference+ |
| |
| conditional-page-master-reference = |
| element fo:conditional-page-master-reference { |
| conditional-page-master-reference.attlist, empty |
| } |
| |
| # =============================================================== |
| # Simple page master defines a page layout. It does not |
| # explicitly generate any content. |
| # =============================================================== |
| simple-page-master = |
| element fo:simple-page-master { |
| simple-page-master.attlist, |
| simple-page-master.content |
| } |
| simple-page-master.content = |
| region-body, |
| region-before?, |
| region-after?, |
| region-start?, |
| region-end? |
| |
| # =============================================================== |
| # Regions. The page instance is divided into subareas, whose |
| # properties are described by the five region-* elements. These |
| # elements by themselves do not generate any content. |
| # =============================================================== |
| |
| # =============================================================== |
| # Body region: middle of the page. |
| # =============================================================== |
| region-body = element fo:region-body { region-body.attlist, empty } |
| |
| # =============================================================== |
| # Side regions: page edges. |
| # =============================================================== |
| |
| region-before = element fo:region-before { region-before.attlist, empty } |
| region-after = element fo:region-after { region-after.attlist, empty } |
| region-start = element fo:region-start { region-start.attlist, empty } |
| region-end = element fo:region-end { region-end.attlist, empty } |
| |
| # =============================================================== |
| # Page sequence defines the order of choosing page masters to |
| # accomodate all the contents generated by its fo:flow and |
| # fo:static-content children, and the way of numbering them. |
| # =============================================================== |
| page-sequence = element fo:page-sequence { page-sequence.attlist, page-sequence.content } |
| page-sequence.content = title?, static-content*, flow |
| |
| # =============================================================== |
| # Title. May not contain out-of-lines. |
| # =============================================================== |
| #MEMO: Spec states: |
| # XSL> Additionally, an fo:title is not permitted to have as a descendant an fo:block-container |
| # XSL> that generates an absolutely positioned area. |
| # We prohibit block-level descendants except for those descendats of fo:inline-container. |
| # This content model shared by fo:leader and fo:inline child of an fo:footnote. |
| title = element fo:title { title.attlist, title.content } |
| title.content = inlines-inline* |
| |
| # =============================================================== |
| # Flows. They are just sequences of blocks. 'flow-name' feature |
| # defines linkage of the flow to a region in the page master. |
| # =============================================================== |
| # =============================================================== |
| # An extension element, rx:flow-section, has been added in order |
| # to overcome limitations on multicolumn layout imposed by XSL FO |
| # =============================================================== |
| #NOTE: We use tricks with nested grammar in order control marker/retrieve-marker |
| #and outlines appearance inside fo:static-content and fo:flow |
| #MEMO: We forcedly prohibit side-floats as descendants of ablsoutely positioned |
| # block-containers. This problem appears due to the 'half-outline' behavior of |
| # an absolute-container - it cannot contain outlines except for side-float and it cannot |
| # be nested into any other outlines. |
| #NOTE: 'Folint' prohibits use of side-floats in static-content that is against the spec. |
| static-content = element fo:static-content { static-content.attlist, static-content.content } |
| static-content.content = grammar { |
| start = blocks+ |
| include "elements.rnc" { |
| retrieve-marker = retrieve-marker-real |
| absolute-container = absolute-container-real |
| absolute-container.content = parent absolute-container.content |
| side-float = side-float-real |
| float.content = parent float.content |
| leader.content = parent leader.content |
| } |
| } |
| |
| flow = element fo:flow { flow.attlist, flow.content } |
| flow.content = grammar { |
| start =marker*, (blocks | flow-section)+ |
| include "elements.rnc" { |
| absolute-container = absolute-container-real |
| #MEMO: We have two options here: |
| # * use parent content model which is too strict (side-floats descendants not allowed); |
| # * use current content model which is too loose (all outline descendants are allowed). |
| # We prefer stricter mode. |
| absolute-container.content = parent absolute-container.content |
| marker = marker-real |
| marker.content = parent marker.content |
| side-float = side-float-real |
| before-float = before-float-real |
| float.content = parent float.content |
| footnote = footnote-real |
| footnote.content = parent footnote.content |
| #NOTE: fo:leader can't have outlines and marker descendants |
| leader.content = parent leader.content |
| } |
| # Extension element. Acts like a top-level block with multiple columns. |
| flow-section = element rx:flow-section { flow-section.attlist, flow-section.content } |
| flow-section.content = blocks+ |
| } |
| |
| #MEMO: Spec prohibits use of fo:leader as a descendant of itself. |
| # We find this constraint somewhat abusive so we do not enforce it. |
| # 'Folint' also does not controll this constraint |
| # However following trick can be used to prevent fo:leader to appear as it's own child. |
| # (to make it work we have to set leader.content to be notAllowed and move |
| # actual content into leader.content-real in elements.rnc) |
| #leader.content |= grammar { |
| # start = leader.content-real |
| # include "elements.rnc" { |
| # leader = notAllowed |
| # } |
| #} |
| |
