I have no idea I'm afraid.

What operating system are you on, and if it is Windows are you willing to install perl? If you already have perl installed (you do if you are on Linux or MacOS) or are willing to install it it will be fairly easy for me to write a script which inserts the lang attribute everywhere if needed. (It can certainly be done in Python too, but I'm not familiar with the Python libraries for modifying HTML or accessing compressed files.)

Den ons 30 okt. 2019 01:39Patrick Kenny <ptmkenny-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:
Thank you for the response.

When I use
 
lang:ja

Then

* cover.xhtml
* title_page.xhtml

get
 
 xml:lang="ja"

as expected, but none of the chapter files do. (ch001.xhtml, etc.)  Is this the expected behavior?  How can I also modify the chapter files?


On Wednesday, October 30, 2019 at 1:42:15 AM UTC+9, BP Jonsson wrote:
The metadata key is exactly like the placeholder in the template, no more, no less, i.e. `lang: ja`. This is true generally, and you can easily define your own variables in your own templates. That wouldn't work if Pandoc meddled with the variable names so that the names used in metadata and those used in templates were somehow different.


Den tis 29 okt. 2019 15:40Patrick Kenny <ptmk...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:
Going from markdown to epub3, how do I set the language on the HTML tag in the epub?

For epub3, the template looks like this:

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops"$if(lang)$ xml:lang="$lang$"$endif$>

In my YAML metadata block, I have this:

language: ja

This sets the language in content.opf:

    <dc:language>ja</dc:language>

But it doesn't set the language on the HTML tag.

I also tried adding

language: ja

to the metadata, but this didn't change the value on the HTML tag, either.

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