Schema Documentation - Book Profile
version 1.0

The sub element

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The sub element represents instances of subscripted text.

Usage Example

<p>
    *<sub>*</sub>* The "Later Researches" may be had separately. 8vo. 15s.
</p>

Allowed parents

abbr, d:about, address, annoref, annotation (block variant), annotation (phrase variant), m:annotation-xml, aside (block variant), aside (toc variant), block, caption, citation (block variant), citation (phrase variant), code, d, definition, description (block variant), description (phrase variant), description (text variant), emph (phrase variant), emph (text variant), entry (toc variant), entry (index variant), entry (bibliography variant), entry (glossary variant), expansion, h, hd, hpart, item, ln (code variant), ln (ln variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), sel:otherwise, p, ssml:phoneme (phrase variant), ssml:phoneme (text variant), ssml:prosody (phrase variant), ssml:prosody (text variant), quote (block variant), quote (phrase variant), its:rb, ref, its:rt, s, ssml:say-as (phrase variant), ssml:say-as (text variant), d:simplifiedLanguageDescription, span (phrase variant), span (text variant), spine, sub, ssml:sub (phrase variant), ssml:sub (text variant), d:summary, sup, td, term, th, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, w, sel:when and wpart

Allowed children

This element may contain text.

This element may contain the following children: ssml:break, char, emph, object, pagebreak, ssml:phoneme, ssml:prosody, its:ruby, ssml:say-as, span, sub, ssml:sub, sup and ssml:token

Content model and additional requirements

optional attributes: @about, @by, @class, @content, @datatype, @desc, @its:dir, @its:translate, @property, @rel, @resource, @rev, @role, @sel:selid, @typeof, @xml:base, @xml:id, @xml:lang and @xml:space
optionally the following 2 co-ocurring attributes: @ssml:alphabet and @ssml:ph
one or more of
a choice of
either one of the 14 elements: char, emph, its:ruby, object, pagebreak, span, ssml:break, ssml:phoneme, ssml:prosody, ssml:say-as, ssml:sub, ssml:token, sub or sup
or text
end of choice
Note that in addition to restrictions presented in the content model above, use of this element must also respect the following requirement:
  • The sub element must neither be empty nor contain only whitespace.
Such requirements take precedence over any conflicting statements in the content model or in the lists above of allowed children and parents.

Namespace

http://www.daisy.org/ns/z3998/authoring/