code-block table should be wrapped in a `<div>` tag

[Anteru]

(Original issue 925 created by None on 2013-11-11T02:14:41.552192+00:00)

In the document of HtmlFormatter, there is an example output snippt when linenos option is set to "table". In this example, the <table> tag is wrapped in a <div> tag with "highlight" class.

But current implementation doesn't output the wrapper <div>. It generates a bare <table> tag with class "<cssclass>table".

Without the wrapping <div>, it's hard to styling the table. Say, you cannot easily limit the height of table and make a scroll bar when the number of lines is too large.

I hope that the wrapper <div> could be, at least, generated by some configuration.

[Anteru]

(Original comment by calfzhou on 2013-11-11T03:16:23.401856+00:00)

Checked the history of html.py. In the earliest version, the <table> is wrapped by a <div>, but commit 6c43f98 removed the <div>.

Looking forward to get the <div> back.

You could give the wrapper <div> a width: 100%; overflow: auto; style, then the whole table could be scroll-able. At least, linenos can vertically scroll with code content. Without the div, I have no idea to limit the table's height and make the two columns scroll synchronously.

[lilydjwg]

There is issues with width too, i.e. long lines stretch the table a lot and no scroll bars. I see that MediaWiki instead uses linenos=inline and then replaces those numbers with css pseudo elements to avoid being selected. In that way long lines are wrapped.

[jeanas]

Not sure why this issue got auto-closed while the PR is still open ...