code: function getUriRaw() {
    const startPos = pos;
    const type = NodeType.RawType;
    const token = tokens[startPos];
    const line = token.ln;
    const column = token.col;
    let content = [];
    let l;
  
    while (pos < tokens[startPos].uri_raw_end) {
      if (checkInterpolation(pos) || checkVariable(pos)) break;
      else if (l = checkUriRawCharacters(pos)) pos += l;
      else break;
    }
  
    content = joinValues(startPos, pos - 1);
  
    return newNode(type, content, line, column);
  }
docs: Get a raw node
  @return {Node}