17.13.6 Bookmarks
Within a WordprocessingML document, bookmarks refer to arbitrary regions of content which are bounded and have a unique name associated with them.
Because bookmarks are a legacy word processing function which predates the concepts of XML and well- formedness, they can start and end at any location within a document’s contents and therefore shall use the “cross-structure” annotation format described in 17.13.2.
[Example: Consider the following WordprocessingML markup for two paragraphs, each reading Example Text, where a bookmark has been added spanning the second word in paragraph one and the first word in paragraph two:
<w:p>
<w:r>
<w:t>Example</w:t>
</w:r>
<w:bookmarkStart w:id="0" w:name="sampleBookmark" />
<w:r>
<w:t xml:space="preserve"> text.</w:t>
</w:r>
</w:p>
<w:p>
<w:r>
<w:t>Example</w:t>
</w:r>
<w:bookmarkEnd w:id="0" />
<w:r>
<w:t xml:space="preserve"> text.</w:t>
</w:r>
</w:p>The bookmarkStart and bookmarkEnd elements (17.13.6.2; 17.13.6.1) specify the location where the bookmark starts and ends, but cannot contain it using a single tag because it spans part of two paragraphs. However, the two tags are part of one group because the id attribute value specifies 0 for both. end example]