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Fast and extensible Markdown for Elixir
Security advisory:
This version has known vulnerabilities.
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examples/highlight.exs
Mix.install([
{:mdex, path: ".."}
])
defmodule HighlightExample do
import MDEx.Sigil
def run do
opts = [
render: [unsafe_: true]
]
markdown = ~M"""
# Highlight Example
Transform double equal signals into `<mark>` tags as described at https://www.markdownguide.org/extended-syntax/#highlight
==Because== I need to highlight these ==very important words== and also these ==other words too==
"""
document =
Kernel.update_in(markdown, [:document, Access.key!(:nodes), Access.all(), :text], fn %MDEx.Text{literal: literal} ->
# break each text literal into blocks separated by =={text}==
case Regex.split(~r/==.*?==/, literal, include_captures: true, trim: true) do
# single text means no == == found
[text] ->
%MDEx.Text{literal: text}
# return HtmlBlock <mark> for each == or just text
blocks ->
blocks =
Enum.map(blocks, fn
"==" <> rest ->
marked_text = "<mark>" <> String.replace_suffix(rest, "==", "</mark>")
%MDEx.HtmlBlock{literal: marked_text}
text ->
%MDEx.Text{literal: text}
end)
%MDEx.Paragraph{nodes: blocks}
end
end)
html = MDEx.to_html!(document, opts)
File.write!("highlight.html", html)
IO.puts(html)
end
end
HighlightExample.run()