Inconsistent list rendering

[fabiospampinato]

The following Markdown:

1. asd
   1. asd

---

1. asd
	1. asd

---

1. asd
   2. asd

---

1. asd
	2. asd

Generates this in markdown-it, in commonmark-strict mode:

While commonmark.js generates this:

So there seems to be some slightly differences there.

[puzrin]

Difference is certainly not nice. But in this case i can't say immediately, is this bug of markdown-it or of reference commonmark implementation (not sure what spec says).

If you have time, could you ask @jgm in commonmark tracker, how your last case is expected to work (according to spec)? Anyway, i think they can wish to add this case into spec. We test all spec samples and fix any deviations ASAP. Also we track pathological tests of commonmark.js.

[jgm]

See section 5.3 of the spec:

In order to solve [the problem of] of unwanted lists in paragraphs with hard-wrapped numerals, we allow only lists starting with 1 to interrupt paragraphs.

This means that you can't have a sublist beginning with 2. unless you leave a blank line. (markdown-it is therefore not in compliance with this rule in the fourth case.)

[rlidwka]

Fixed, thanks for reporting (parser incorrectly calculated tab width for that particular case).