Expanders

Defines node "expanders" that transform nodes from the parsed markdown files.

Parses each code block where the language is @autodocs and replaces it with all the docstrings that match the provided key/value pairs Modules = ... and Order = ....

```@autodocs
Modules = [Foo, Bar]
Order   = [:function, :type]
```

Parses each code block where the language is @contents and replaces it with a nested list of all Header nodes in the generated document. The pages and depth of the list can be set using Pages = [...] and Depth = N where N is and integer.

```@contents
Pages = ["foo.md", "bar.md"]
Depth = 1
```

The default Depth value is 2.

Parses each code block where the language is @docs and evaluates the expressions found within the block. Replaces the block with the docstrings associated with each expression.

```@docs
Documenter
makedocs
deploydocs
```

Parses each code block where the language is @eval and evaluates it's content. Replaces the block with the value resulting from the evaluation. This can be useful for inserting generated content into a document such as plots.

```@eval
using PyPlot
x = linspace(-π, π)
y = sin(x)
plot(x, y, color = "red")
savefig("plot.svg")
Markdown.parse("![Plot](plot.svg)")
```

Parses each code block where the language is @example and evaluates the parsed Julia code found within. The resulting value is then inserted into the final document after the source code.

```@example
a = 1
b = 2
a + b
```

The default node expander "pipeline", which consists of the following expanders:

• TrackHeaders
• MetaBlocks
• DocsBlocks
• AutoDocsBlocks
• EvalBlocks
• IndexBlocks
• ContentsBlocks
• ExampleBlocks
• SetupBlocks
• REPLBlocks

Parses each code block where the language is @index and replaces it with an index of all docstrings spliced into the document. The pages that are included can be set using a key/value pair Pages = [...] such as

```@index
Pages = ["foo.md", "bar.md"]
```

Parses each code block where the language is @meta and evaluates the key/value pairs found within the block, i.e.

```@meta
CurrentModule = Documenter
DocTestSetup  = quote
    using Documenter
end
```

Similar to the ExampleBlocks expander, but inserts a Julia REPL prompt before each toplevel expression in the final document.

Similar to the ExampleBlocks expander, but hides all output in the final document.

Tracks all Markdown.Header nodes found in the parsed markdown files and stores an Anchors.Anchor object for each one.