<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron">
<sch:ns prefix="pef" uri="http://www.daisy.org/ns/2008/pef"/>
<sch:pattern>
<sch:rule context="pef:page">
<sch:assert test="(ceiling(sum(pef:row/sum(ancestor-or-self::pef:*[@rowgap][1]/@rowgap)) div 4) + count(pef:row))<=(ancestor::pef:*[@rows][1])/@rows">[Rule 1] Rows do not fit within the defined page height</sch:assert>
</sch:rule>
</sch:pattern>
<sch:pattern>
<sch:rule context="pef:row">
<sch:assert test="string-length(text())<=(ancestor::pef:*[@cols][1])/@cols">[Rule 2] Too many characters on row</sch:assert>
</sch:rule>
</sch:pattern>
<sch:diagnostics/>
</sch:schema>