Can a 読点{とうてん} ("comma") join two complete sentences?


Can `、` join two complete sentences? In other words, can `、` replace `。`?

I thought it could, but in [this
answer](https://japanese.stackexchange.com/a/11812/1478), user1205935 seems to
suggest that it cannot. (Rather than ask about it in a comment, I decided to
make a separate question about it.)

Here are a pair of examples:

  1. Aと言う。Bと言う。
  2. Aと言う、Bと言う。

Is example 2 ungrammatical?




Based on [a document from
文部省](http://www.bunka.go.jp/kokugo_nihongo/joho/kijun/sanko/pdf/kugiri.pdf),
it's not ungrammatical, and it's a pattern used only when the two parts of the
sentence (before and after the 読点) have the same structure (like those in your
example).

Examples:

> 父も喜んだ、母も喜んだ。  
>  クリモキマシタ、ハチモキマシタ、ウスモキマシタ。

Here is the brief explanation it gives:

> 終止の形をとつてゐても、その文意が続く場合にはテンをうつ。




Based on [a document from
文部省](http://www.bunka.go.jp/kokugo_nihongo/joho/kijun/sanko/pdf/kugiri.pdf),
it's not ungrammatical, and it's a pattern used only when the two parts of the
sentence (before and after the 読点) have the same structure (like those in your
example).

Examples:

> 父も喜んだ、母も喜んだ。  
>  クリモキマシタ、ハチモキマシタ、ウスモキマシタ。

Here is the brief explanation it gives:

> 終止の形をとつてゐても、その文意が続く場合にはテンをうつ。

