// debug "bla" + blubb; => { if (debug) print("bla" + blubb); }
svoid tok_debugStatements(LS tok) {
  int i = -1;
  while ((i = jfind(tok, i+1, "debug <quoted>")) >= 0) {
    int j = tok_findEndOfStatement(tok, i); // index of semicolon+1
    replaceTokens(tok, i, i+2, "{ if (debug) print(");
    tok.set(j-1, "); }");
    i = j;
  }
}