At present, code listings without a main function will be wrapped in one and
annotated with an allow lint check attribute provided by the following [code][]:
```
format!(
"\n# #![allow(unused_variables)]\n{}#fn main() {{\n{}#}}",
attrs, code
)
```
A broader lint check attribute such as `#![allow(unused)]` seems like it might
better fit the apparent intent of this code.
Addresses: https://github.com/rust-lang/mdBook/issues/1192
[code]: 769cc0a7c1/src/renderer/html_handlebars/hbs_renderer.rs (L635-L638)
Html page title for every chapter in the book is created by the following code:
```rust
let title: String;
{
let book_title = ctx
.data
.get("book_title")
.and_then(serde_json::Value::as_str)
.unwrap_or("");
title = ch.name.clone() + " - " + book_title;
}
```
If the `book.toml` file is missing, and `book_title` parameter is empty, there's an awkward ` - ` string hanging at the end of each chapter's title.
This PR adds a `match` case to handle that kind of situation.
* Using .to_lowercase() on the theme matching to avoid needed exact capitolization in the book.toml
* Changed the default-dark-theme from .to_string() to .to_lowercase() to match theme
* Option to display copy buttons.
- Added field to playpen data structure
- Communicate through window.playpen_copyable
- Javascript updated to check before displaying copy buttons.
* html -> html_config
Also:
- update description of copyable in source code.
- update description of line_numbers (my last PR to this repository)
- Added line numbers to config struct
- Added playpen_line_numbers field to hbs renderer.
- Added section to set `window.playpen_line_numbers = true` in page template
- Use line number global variable to show line numbers when required.
* Update to pulldown-cmark 0.4.1.
* Update to pulldown-cmark 0.5.2.
* Remove pulldown-cmark-to-cmark dependency.
Since it is not compatible with the new pulldown-cmark. This example isn't
directly usable, anyways, and I think the no-op example sufficiently shows how
to make a preprocessor.
* cargo fmt
* Fix example link.
