%preformat-elements;
Preformatted Text Elements
Elements that may be included along with data characters inside the content model for the <preformat> element, in which whitespace, such as tabs, line feeds, and spaces, will be preserved
Model
<!ENTITY % preformat-elements "| %access.class; | %all-phrase; | %display-back-matter.class; " >
Expanded Model
| alt-text | long-desc | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | fixed-case | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | serif | strike | underline | underline-start | underline-end | ruby | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | index-term | index-term-range-end | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x | attrib | permissions