/* e.g. "he is called <a name>" =>

  he is called $1

    & $1 is (a name)

*/

sclass AngleBracketVarsToConditions {

  S mainLine;

  new LS conditions;

  swappable S makeDollarVar() { ret main makeDollarVar(); }

  swappable S categoryToNounPhrase(S s) { ret aOrAn_opt(s); }

  swappable S makeCondition(S var, S type) {

    ret var + " is " + roundOpt(categoryToNounPhrase(type));

  }

  S go(S s) {

    LS tok = javaTokWithAngleBrackets(s);

    conditions.clear();

    for (int i : indicesOfAngleBracketVars(tok)) {

      S var = makeDollarVar();

      conditions.add(makeCondition(var, deAngleBracket(tok.get(i))));

      tok.set(i, var);

    }

    ret mainLine = join(tok);

  }

  S joined() { ret joinWithAmpersand(itemPlusList(mainLine, conditions)); }

}