code: function checkUriRaw(i) {
    const start = i;
    let l;
  
    while (i < tokensLength) {
      if (checkInterpolation(i) || checkVariable(i)) break;
      else if (l = checkUriRawCharacters(i)) i += l;
      else break;
    }
  
    tokens[start].uri_raw_end = i;
  
    return i - start;
  }
docs: Check if content of URI can be contained within a raw node
  @param {number} i Token's index number
  @return {number} Length of raw node