/* 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)); }
}