Ability to Remove Clipboard for Code Snippets

• I’ve read the [contribution guidelines][1] and agree with them

I want to suggest an idea and checked that …

• … to my best knowledge, my idea wouldn’t break something for other users
• … the documentation does not mention anything about my idea
• … there are no open or closed issues that are related to my idea

Description

I would like the ability to remove the “copy to clipboard” functionality for specific code snippets on a case-by-base basis.

Use Cases

I like to show a command that the viewer should run followed by the expected output. I use code snippets for both of these purposes. However, an inattentive viewer might confuse the command for the expected output and try to copy and paste the output. I would like to prevent this by hiding the clipboard icon for expected output.

Screenshots / Mockups

The syntax can look something like this:

```<Optional language> no-copy
Error: ...
```

[squidfunk]

Using the text lexer should work:

``` { .text .no-copy }
...
```

[facelessuser]

Let me be clear, attr_list supports the legacy behavior of using :. I’m not sure where this legacy behavior comes from.

fenced_code never supported :. Probably because : is a legacy behavior. SuperFences, which is modeled after fenced_code, also does not support it.

It happens to work if you use a space just because how attr_list handles the content, but that is not intentional behavior.

Is this a little confusing? Yup.

In general, it is probably less confusing to just never use : with attr_list, even if it is supported formally in some cases.