<!– ============================================================= –> <!– MODULE: Formatting Element Classes –> <!– VERSION: 3.0 –> <!– DATE: Apr 2009 –> <!– –> <!– ============================================================= –>

<!– ============================================================= –> <!– PUBLIC DOCUMENT TYPE DEFINITION –> <!– TYPICAL INVOCATION –> <!–

"-//Atypon//DTD Atypon Systems Archival NLM DTD Formatting Element Classes v3.0.4 20110308//EN"
 Delivered as file "format3.ent"                                  -->

<!– ============================================================= –>

<!– ============================================================= –> <!– SYSTEM: Archiving and Interchange DTD Suite –> <!– –> <!– –> <!– PURPOSE: Elements concerned with rendition of output, for –> <!– example printing on a page or display on a screen –> <!– –> <!– CONTAINS: 1) Default definitions of format classes –> <!– 2) Appearance class elements –> <!– 3) Break class elements –> <!– 4) Typographic emphasis elements –> <!– 5) Advanced overline and underline elements –> <!– –> <!– CREATED FOR: –> <!– Digital archives and publishers who wish to –> <!– create a custom XML DTD for original markup of –> <!– journal literature, books, and related material, –> <!– or for archiving and transferring such material –> <!– between archives. –> <!– –> <!– This DTD is in the public domain. An organization –> <!– that wishes to create its own DTD from the suite –> <!– may do so without permission from NLM. –> <!– –> <!– The suite has been set up to be extended using a –> <!– new DTD file and a new DTD-specific customization –> <!– module to redefine the many Parameter Entities. –> <!– Do not modify the suite directly or redistribute –> <!– modified versions of the suite. –> <!– –> <!– In the interest of maintaining consistency and –> <!– clarity for potential users, NLM requests: –> <!– –> <!– 1. If you create a DTD from the Archiving and –> <!– Interchange DTD Suite and intend to stay –> <!– compatible with the suite, then please include –> <!– the following statement as a comment in all of –> <!– your DTD modules: –> <!– “Created from, and fully compatible with, –> <!– the Archiving and Interchange DTD Suite.” –> <!– –> <!– 2. If you alter one or more modules of the suite, –> <!– then please rename your version and all its –> <!– modules to avoid any confusion with the –> <!– original suite. Also, please include the –> <!– following statement as a comment in all your –> <!– DTD modules: –> <!– “Based in part on, but not fully compatible –> <!– with, the Archiving and Interchange DTD –> <!– Suite.” –> <!– –> <!– Suggestions for refinements and enhancements to –> <!– the DTD suite should be sent in email to: –> <!– archive-dtd@ncbi.nlm.nih.gov –> <!– –> <!– ORIGINAL CREATION DATE: –> <!– December 2002 –> <!– –> <!– CREATED BY: Jeff Beck (NCBI) –> <!– Deborah Lapeyre (Mulberry Technologies, Inc.) –> <!– Bruce Rosenblum (Inera Inc.) –> <!– –> <!– NLM thanks the Harvard University Libraries, both –> <!– for proposing that a draft archiving NLM DTD for –> <!– life sciences journals be extended to accommodate –> <!– journals in all disciplines and for sponsoring –> <!– Bruce Rosenblum's collaboration with other DTD –> <!– authors in completing Version 1.0. The Andrew W. –> <!– Mellon Foundation provided support for these –> <!– –> <!– Suggestions for refinements and enhancements to –> <!– the DTD suite should be sent in email to: –> <!– archive-dtd@ncbi.nlm.nih.gov –> <!– important contributions. –> <!– –> <!– ============================================================= –>

<!– ============================================================= –> <!– DTD VERSION/CHANGE HISTORY –> <!– ============================================================= –> <!–

=============================================================

Version Reason/Occasion (who) vx.x (yyyy-mm-dd)

   =============================================================
   Version 3.0                       (DAL/BTU) v3.0 (2007-10-31)
   Version 3.0 is the first non-backward-compatible release.
   In addition to the usual incremental changes, some
   elements and attributes have been renamed and/or remodeled
   to better meet user needs and to increase tag set consistency.
   All module change histories are available through the Tag Suite 
   web site at http://dtd.nlm.nih.gov. 
   Details on version 3.0 are available at 
         http://dtd.nlm.nih.gov/3.0.
1. Updated public identifier to "v3.0 20080202//EN"              -->

<!– ============================================================= –> <!– PARAMETER ENTITIES FOR ATTRIBUTE LISTS –> <!– ============================================================= –>

<!– UNDERLINE ATTRIBUTES –> <!– Attributes for the <underline> element –> <!ENTITY % underline-atts

"underline-style   
            CDATA                             #IMPLIED"  >

<!– ============================================================= –> <!– APPEARANCE CLASS ELEMENTS –> <!– ============================================================= –>

<!– HORIZONTAL RULE –> <!– Defined to allow the user to specify an

explicit (non machine-generated) rule.
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=hr
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=hr
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=hr
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=hr
                                           -->

<!ELEMENT hr EMPTY >

<!– ============================================================= –> <!– BREAK CLASS ELEMENTS –> <!– ============================================================= –>

<!– LINE BREAK –> <!– Defined to allow the user to specify an

explicit (non machine-generated) linebreak.
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=break
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=break
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=break
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=break
                                           -->

<!ELEMENT break EMPTY >

<!– ============================================================= –> <!– EMPHASIS/RENDITION CLASS ELEMENTS –> <!– ============================================================= –>

<!– BOLD –> <!– Used to mark text that should appear in bold

face type for print or display 
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=bold
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=bold
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=bold
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=bold
                                           -->

<!ELEMENT bold (#PCDATA %emphasized-text;)* >

<!– ITALIC –> <!– Used to mark text that should appear in

italic type on output. 
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=italic
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=italic
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=italic
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=italic
                                           -->

<!ELEMENT italic (#PCDATA %emphasized-text;)* >

<!– MONOSPACE TEXT (TYPEWRITER TEXT) –> <!– Used to mark text that should appear in

a non-proportional font, such as courier
for display or print.  This is common for
computer code examples, man-machine
dialogues, etc.
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=monospace
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=monospace
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=monospace
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=monospace
                                           -->

<!ELEMENT monospace (#PCDATA %emphasized-text;)* >

<!– ROMAN –> <!– Used to mark text that should remain in

roman script no matter what style the
surrounding text takes on.
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=roman
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=roman
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=roman
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=roman
                                           -->

<!ELEMENT roman (#PCDATA %emphasized-text;)* >

<!– SANS SERIF –> <!– Used to mark text that should appear in a

special sans-serif font, typically used in
math or chemistry  
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=sans-serif
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=sans-serif
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=sans-serif
                                           -->

<!ELEMENT sans-serif (#PCDATA %emphasized-text;)* >

<!– SMALL CAPS –> <!– Used to mark text that should appear in a

font which creates smaller capital letters
on output. 
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=sc
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=sc
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=sc
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=sc
                                           -->

<!ELEMENT sc (#PCDATA %emphasized-text;)* >

<!– OVERLINE –> <!– Used to mark text that should appear with a

horizontal line above each character in
display or print. There is no PE for
override because this was added to handle
a specific publisher tag set and should not 
grow beyond what they need. 
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=overline
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=overline
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=overline
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=overline
                                           -->

<!ELEMENT overline (#PCDATA %emphasized-text;)* >

<!– STRIKE THROUGH –> <!– Used to mark text that should appear with

a line through it so as to appear "struck out" 
on display or print  
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=strike
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=strike
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=strike
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=strike
                                           -->

<!ELEMENT strike (#PCDATA %emphasized-text;)* >

<!– SUBSCRIPT –> <!– A number or expression that is set lower

than the baseline and slightly smaller,
to act as an inferior or subscript    
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=sub
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=sub
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=sub
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=sub
                                           -->

<!ELEMENT sub (#PCDATA %emphasized-text;)* > <!ATTLIST sub

arrange    (stack | stagger)                  #IMPLIED  >

<!– SUPERSCRIPT –> <!– A number or expression that is set higher

than the baseline and slightly smaller,
to act as a superior or superscript 
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=sup
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=sup
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=sup
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=sup
                                           -->

<!ELEMENT sup (#PCDATA %emphasized-text;)* > <!ATTLIST sup

arrange    (stack | stagger)                  #IMPLIED  >

<!– UNDERLINE –> <!– Details at:

http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=underline
http://dtd.nlm.nih.gov/publishing/tag-library/3.0/index.html?elem=underline
http://dtd.nlm.nih.gov/articleauthoring/tag-library/3.0/index.html?elem=underline
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=underline
                                           -->

<!ELEMENT underline (#PCDATA %emphasized-text;)* > <!ATTLIST underline

%underline-atts;                                        >

<!– ============================================================= –> <!– ADVANCED UNDERLINE AND OVERLINE ELEMENTS

(From the Elsevier DTD, used mostly within    
mathematics, when ordinary MathML underline   
and overline functions are inadequate. The
elements act as milestone tags marking the
start and end of over or underlining that
may extend across element boundaries.)     -->

<!– ============================================================= –>

<!– OVERLINE START –> <!– The start of a milestone-created overline, the

end of ornament will be marked by an
Overline End element.
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=overline-start
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=overline-start
                                           -->

<!ELEMENT overline-start

EMPTY                                        >

<!ATTLIST overline-start

id         ID                                 #REQUIRED >

<!– OVERLINE END –> <!– The end of a milestone-created overline, the

start of ornament will be marked by an
Overline Start element.
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=overline-end
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=overline-end
                                           -->

<!ELEMENT overline-end EMPTY > <!ATTLIST overline-end

rid        IDREF                              #REQUIRED >

<!– UNDERLINE START –> <!– The start of a milestone-created underline,

the end of ornament will be marked by an
Underline End element
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=underline-start
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=underline-start
                                           -->

<!ELEMENT underline-start

EMPTY                                        >

<!ATTLIST underline-start

id         ID                                 #REQUIRED >

<!– UNDERLINE END –> <!– The end of a milestone-created underline, the

start of ornament will be marked by an
Underline Start element. 
Details at: 
http://dtd.nlm.nih.gov/archiving/tag-library/3.0/index.html?elem=underline-end
http://dtd.nlm.nih.gov/book/tag-library/3.0/index.html?elem=underline-end
                                           -->

<!ELEMENT underline-end

EMPTY                                         >

<!ATTLIST underline-end

rid        IDREF                               #REQUIRED >

<!– ================== End Format Class Module =================== –>