IndexError on malformed markdown tables about mistletoe HOT 1 CLOSED

Hi @koreyou, thanks for the report. Luckily, this seems to be already fixed in the master (and a new mistletoe version will be hopefully released soon).

Details: The full error stack trace:

Traceback (most recent call last):
  ...
  File "d:\projects\my-forks\mistletoe\mistletoe\span_token.py", line 97, in find
    return core_tokens.find_core_tokens(string, _root_node)
  File "d:\projects\my-forks\mistletoe\mistletoe\core_tokens.py", line 67, in find_core_tokens
    process_emphasis(string, None, delimiters, matches)
  File "d:\projects\my-forks\mistletoe\mistletoe\core_tokens.py", line 106, in process_emphasis
    bottom = star_bottom if closer.type[0] == '*' else underscore_bottom
IndexError: string index out of range

So it was rather a problem in parsing emphasis - when closer.type (property of Delimiter class instance) was an empty string for some strange reason. This sample also used to fail: ___|______|_, but e.g. ___b______c_ passes. Anyway, this was hopefully fixed, even if seemingly "by accident", by 8c90f9d, within #108.

So I'm closing this as "resolved", as I can't see under which circumstances closer.type could (have) become empty. Yes, we could add a test on emptiness, yet this would be just a workaround of the problem, as avoiding the empty string creation would be the real fix.

from mistletoe.