for i in $(find . -name '*.rst'); do grep -F -q '.. code-block:: ' $i && cat $i | sed -r -e 's/$/<NEWLINE>/' | tr -d '\n' | sed -r -e 's/([^>])<NEWLINE>.. code-block::/\1<NEWLINE><NEWLINE>.. code-block::/g' | sed -r -e 's/<NEWLINE>/\n/g' > ${i}.tmp && mv ${i}.tmp ${i}; done