<addSpan> (added span of text) marks the beginning of a longer sequence of text added by an author, scribe, annotator or corrector (see also add). [11.3.1.4 Additions and Deletions]
<sch:assert test="@spanTo">The spanTo= attribute of <sch:name/> is required.</sch:assert>
Schematron
<sch:assert test="@spanTo">L'attribut spanTo est requis.</sch:assert>
Example
<handNote xml:id="HEOL" scribe="HelgiÓlafsson"/> <!-- ... --> <body> <div> <!-- text here --> </div> <addSpan n="added gathering" hand="#HEOL" spanTo="#P025"/> <div> <!-- text of first added poem here --> </div> <div> <!-- text of second added poem here --> </div> <div> <!-- text of third added poem here --> </div> <div> <!-- text of fourth added poem here --> </div> <anchor xml:id="P025"/> <div> <!-- more text here --> </div> </body>