ifclass IntRange
svoid replaceTokens(LS tok, IntRange r, S s) {
  replaceTokens(tok, r.start, r.end, s);
}
endif

svoid replaceTokens(LS tok, int i, int j, S s) {
  clearAllTokens(tok, i+1, j);
  tok.set(i, s);
}

svoid replaceTokens(LS tok, S s) {
  clearAllTokens(tok, 1, l(tok));
  tok.set(0, s);
}