fix(build): line numbers mode when language specifier has symbol

[sun0day]

fix #1352

Code block's language- class should compatible with special char, such as '-', '+', '#'...

After PR:

"language-" => "language- line-numbers-mode"
"language-js" => "language-js line-numbers-mode"
"language-c#" => "language-c# line-numbers-mode"
"language-c++" => "language-c++ line-numbers-mode"
"language-Objective-C" => "language-Objective-C line-numbers-mode"

[brc-dd]

This won't work with string like this:

<div class="language-">..."...</div>

Probably something like /"(language-[^\s"]*?)"/ should work

[sun0day]

use /"(language-.*?)"/ ?

/"(language-[^\s"]*?)"/ dont work with <div class="language- xxxx">..."...</div>

[brc-dd]

There won't be any <div class="language- xxxx">..."...</div> case if that div is generated by our code highlighting plugin. However, I suppose we can simplify that regex to: /"(language-\S*?)"/

[sun0day]

There won't be any <div class="language- xxxx">..."...</div> case if that div is generated by our code highlighting plugin.

From the current code, yes, this case won't happen.

But what I concern is that from the lineNumberPlugin API aspect, it is better to be compatible with more cases.

So which one do you prefer @brc-dd ? If you insist, I'll change the regex to /"(language-\S*?)"/

[brc-dd]

Change it to either. I'd still recommend \S one, we should keep regexes stricter because they tend to mess back 😅. However, in this case both should work fine IG.

[sun0day]

Change it to either. I'd still recommend \S one, we should keep regexes stricter because they tend to mess back 😅. However, in this case both should work fine IG.

Alright. Let's change it to /"(language-\S*?)"/ for now.

Done. Merge it at your convenience. @brc-dd