This will search an XML document for block_quotes with the specified type
and level and extract them into a nodeset.
Arguments
- body
the XML body of a carpentries lesson (an xml2 object)
- type
the type of block quote in the Jekyll syntax like ".challenge", ".discussion", or ".solution"
- level
the level of the block within the document. Defaults to
1, which represents all of the block_quotes are not nested within any other block quotes. Increase the nubmer to increase the level of nesting.
Value
an xml nodeset object with each element representing a blockquote that matched the input criteria.
Note
At the moment, blocks are returned at the specified level. If you
select type = ".solution", level = 1, you will receive blocks that
contain solution blocks even though these blocks are almost always nested
within other blocks.
Examples
frg <- Lesson$new(lesson_fragment())
# Find all the blocks in the
get_blocks(frg$episodes[["17-scope.md"]]$body)
#> {xml_nodeset (2)}
#> [1] <block_quote sourcepos="45:1-60:14" ktag="{: .challenge}">\n <heading so ...
#> [2] <block_quote sourcepos="62:1-95:14" ktag="{: .challenge}">\n <heading so ...