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operator |
previous is |
Return type: Switch
Returns: True if the qualified element is not the first subelement and false otherwise. Replacing is
with isnt
will reverse the results.
Syntax
previous element-qualifier* (is | isnt) (element-name | element-name-list)
A test that succeeds if the qualified element is not the first subelement of its parent, and if the previous subelement has the specified element name. Otherwise, it fails (and returns false).
For example, the following "do...done" block uses a previous is
test, and the actions within the block (not shown here) will only be executed if the current element follows a paragraph (par) element:
do when previous is par ... done
The previous is
test ignores inclusions and data content.
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