Custom code fence

[shaedrich]

🚧 Work in progress. Coming soon

Options

• class (constant: .ponylang)
• snippet: file name from ./code-samples (can optionally include line syntax after :; see lines) (see Snippets extension for details)
• dedent_subsections: bool (see dedent_subsections option of the Snippets extension for details)
• lines: list of lines to include
  • just one line (lines="1" or lines="6")
  • range (lines="1-3")
  • list of lines (lines="1,6,8")
  • a combination of the options above (lines="1-3,6,8-10")
• runnable: bool Indicates whether the code block contains a Main actor and doesn't result in an error unless intended

Examples

Example 1

```{ .ponylang snippet="hello-world-main.pony" dedent_subsections=false }
Gibberish

* Snippet `hello-world-main.pony` from `./code-samples` is included and content (`"Gibberish"`) is discarded
* Indention is not reduced from the snippet lines

### Example 2
````markdown
```{ .ponylang snippet="classes-wombat.pony:1-3,6" dedent_subsections=false }
Lorem ipsum

* From the snippet `classes-wombat.pony` from `./code-samples` the lines 1 to 3 as well as 6 are included and content (`"Lorem ipsum"`) is discarded
* Indention is not reduced from the snippet lines

### Example 3
````markdown
```{ .ponylang }
actor Main
    new create(env: Env):
        env.out.print("Hello world!")

* Content (`actor Main […]`) is displayed as is

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