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The steps to cover a new programming language are:

  1. Write the grammar. This is the hardest part.
  2. Write a parser (a parser simply parses an input based on your grammar to yield a parse tree).
  3. Test your grammar, to ensure it is able to parse real-life language files.
  4. Write a few parse tree visitors. Some visitors will compute metrics, while others will enforce coding rules. A dozen or so visitors is sufficient for an initial release.
  5. Write a scanner Sensor, in a SonarQube plugin, to launch the visitors. 
  6. Compute
    1. issues
    2. raw measures
    3. code duplications
    4. syntax highlighting
    5. symbol table
    6. coverage information (lines/branches to cover, line/branch hits)

See also

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