static const char* token_types_table = 
  "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
  "<tokenTypes>\n"
  "  <tokenType>factor</tokenType>\n"
  "  <tokenType>basic</tokenType>\n"
  "  <tokenType>group</tokenType>\n"
  "  <tokenType>ending</tokenType>\n"
  "  <tokenType>ringAssembly</tokenType>\n"
  "  <tokenType>punctuation</tokenType>\n"
  "  <tokenType>openingBracket</tokenType>\n"
  "  <tokenType>closingBracket</tokenType>\n"
  "  <tokenType>prime</tokenType>\n"
  "  <tokenType>locant</tokenType>\n"
  "  <tokenType>basicElement</tokenType>\n"
  "  <tokenType>text</tokenType>\n"
  "  <tokenType>bases</tokenType>\n"
  "  <tokenType>suffixes</tokenType>\n"
  "  <tokenType>flag</tokenType>\n"
  "  <tokenType>skeletal_prefix</tokenType>\n"
  "  <tokenType>trivial</tokenType>\n"
  "</tokenTypes>\n";
