How do you indicate line breaks in a poem when it is written without actual line breaks?


In English, if you have a poem, like

> Roses are red,  
>  Violets are blue,  
>  Sugar is sweet,  
>  And so are you.

and you need to write it on just one line (for reasons of space or whatever),
you would write it like this:

> Roses are red, / violets are blue, / sugar is sweet, / and so are you.

That is, you use a single forward slash to separate the lines of the poem.

What is the equivalent of this in Japanese? I know that in some cases, you can
just omit the line breaks altogether, e.g. writing

> 古池や  
>  蛙飛び込む  
>  水の音

as

> 古池や蛙飛び込む水の音

But supposing you did need to indicate the line breaks, how would you do so?




Japanese doesn't traditionally use spaces, so a space will indicate a line
break. For example,

八雲立つ 出雲八重垣 妻籠みに 八重垣作る その八重垣を

Which, if choose to write it in rōmaji, is

Yakumo tatsu / Izumo yaegaki / Tsuma-gomi ni / Yaegaki tsukuru / Sono yaegaki
wo

I will say, however, texts containing poems would almost always be written
vertically, so the need to write a poem horizontally is rare.

