Tools for Spell Checking in R

Spell checking common document formats including latex, markdown, manual pages, and description files. Includes utilities to automate checking of documentation and vignettes as a unit test during 'R CMD check'. Both British and American English are supported out of the box and other languages can be added. In addition, packages may define a 'wordlist' to allow custom terminology without having to abuse punctuation.



  • Internally normalize all case of lang strings to lower_UPPER e.g en_US
  • Only run automatic check when 'spelling' is available and NOT_CRAN is set


  • Breaking: Package spell-checker now uses language from DESCRIPTION
  • Require hunspell 2.9 dependency (better parsing and dicationaries)
  • Change default lang to 'en_US'


  • Initial release

Reference manual

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