HTML code support

[aminya]

When generating html using weave from jmd files, It would be useful if the entered HTML code is processed the same way it is processed in normal Markdown.

For example:

<img src="https://raw.githubusercontent.com/JuliaComputing/JuliaAcademyData.jl/master/courses/Deep%20learning%20with%20Flux/data/single-neuron.png" alt="Drawing" style="width: 500px;"/>

should give:

Now if we try this

$$<img src="https://raw.githubusercontent.com/JuliaComputing/JuliaAcademyData.jl/master/courses/Deep%20learning%20with%20Flux/data/single-neuron.png" alt="Drawing" style="width: 500px;"/>$$

An image with \[ and \] around it appears

[aminya]

In Documenter @raw html can be used

[eisthf]

I think we can do something like:

julia; echo=false

url = "https://raw.githubusercontent.com/JuliaComputing/JuliaAcademyData.jl/master/courses/Deep%20learning%20with%20Flux/data/single-neuron.png"
display("text/html", "<img src=$url alt='Drawing' style='width: 500px;'/>");

[NicholasWMRitchie]

Could adding something like

Base.display(report::Weave.Report, m::MIME"text/html", data::HTML) =
	report.rich_output *= string('\n', data.content)

work? I've added it into some scripts with the desired outcome. Of course, it only works in HTML output documents.

[aviatesk]

Base.display(::Weave.Report, ...) is only called for chunk outputs, as for markdown parts, we translate them into HTML by using Markdown stdlib.

[NicholasWMRitchie]

How about placing something like this in a code block with echo=false

url = "https://raw.githubusercontent.com/JuliaComputing/JuliaAcademyData.jl/master/courses/Deep%20learning%20with%20Flux/data/single-neuron.png"
display(Markdown.parse("![Drawing]($url)"))

This is a way to include dynamic content into a otherwise static report. For example, I use a weave report to summarize each of over 100 items in a database. (>100 distinct reports generated using one weave document) I've like to include some of the database content in headers so I do something like

display(Markdown.parse("## $name: $item"))

It also allows you to write loops with headers,captions or comments or other in a weave report:

for i, caption in enumerate([ "fish", "fowl" ,"feline", "feast" ])
      display(Markdown.parse("## Plot number $i"))
      display(plotit(i))
      display(Markdown.parse("Figure $i: $caption")
end

[NicholasWMRitchie]

While I've only tested this with HTML output, presumably, since it uses Markdown, it should work with the other output formats.