message: Added a separate function to handle v2 counts and refactored the existing code that distinguishes v2 and v3 atom and bond counts
diff: @@ -67,6 +67,13 @@ function handleDataItems(tokenizer: Tokenizer): { dataHeader: Column<string>, da
  };
  }
  +function handleCountsV2(countsAndVersion: string): { atomCount: number, bondCount: number } {
  + return {
  + atomCount: +countsAndVersion.substr(0, 3),
  + bondCount: +countsAndVersion.substr(3, 3)
  + };
  +}
  +
  function handleMolFile(tokenizer: Tokenizer) {
  const title = Tokenizer.readLine(tokenizer).trim();
  const program = Tokenizer.readLine(tokenizer).trim();
  @@ -75,14 +82,7 @@ function handleMolFile(tokenizer: Tokenizer) {
  const countsAndVersion = Tokenizer.readLine(tokenizer);
  const molIsV3 = isV3(countsAndVersion);
  - let atomCount = NaN;
  - let bondCount = NaN;
  -
  - if (molIsV3) {
  - ({ atomCount, bondCount } = handleCountsV3(tokenizer));
  - } else {
  - atomCount = +countsAndVersion.substr(0, 3), bondCount = +countsAndVersion.substr(3, 3);
  - }
  + const { atomCount, bondCount } = molIsV3 ? handleCountsV3(tokenizer) : handleCountsV2(countsAndVersion);
  if (Number.isNaN(atomCount) || Number.isNaN(bondCount)) {
  // try to skip to next molecule
  