.. only:: format_html
References
==========
.. [ICU] http://userguide.icu-project.org/boundaryanalysis
.. [ICU_RSV] http://userguide.icu-project.org/boundaryanalysis#TOC-Rule-Status-Values
.. [UAX29] https://www.unicode.org/reports/tr29/tr29-33.html#Word_Boundaries
.. [UNIDECODE] https://pypi.org/project/Unidecode/