Steam: the Next-Gen smoky and experimental Language

Sample SBT project that process an Antlr grammar, generates the corresponding lexer and parser and add generated java folder to the source folder list.

Resources

• ANTLR
• GIT branching model
• Test driven development with ANTLR

History

The language diary

Day one (tag 'day-one')

• Project setup

• Simplify starting grammar

• Add simple specs test

• tag the day one code

  git tag -a day-one -m "End of Day One"

Day two (tag 'day-two')

• Add qualified identifier

    qualifiedIdentifier returns [QualifiedIdentifier result]
    @init { List<String> path = new ArrayList<String> (); } :
      id=Identifier { path.add(id.getText()); } (':' id=Identifier { path.add(id.getText()); })*
    {
      log.debug("qualifiedIdentifier from "+path);
      result = new QualifiedIdentifier(path.toArray(new String[path.size()]));
    };
  

• Modify grammar, 'require' now takes a qualified identifier

• Fix tests according to this new behavior

• Add logger to the parser:

    @parser::members {
        org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(getClass());
    }
  

• Push created tags in the remote repository (github)

    git push --tags