fixes, styling improvement including inlined code

lib/home73k/blog/post.ex

@@ -63,7 +63,7 @@ defmodule Home73k.Blog.Post do
   # """ parse_body/1
   # Convert body markdown to html, and highlight code fence blocks
   defp parse_body({fm, md}) do
-    html = Earmark.as_html!(md) |> Highlighter.highlight_code_blocks()
+    html = Earmark.as_html!(md) |> Highlighter.highlight_all()
     Map.put(fm, :body, html)
   end
 

lib/home73k/highlighter.ex

@@ -8,7 +8,14 @@ defmodule Home73k.Highlighter do
   @chroma_bin Home73k.app_chroma_bin() |> Path.expand()
 
   @doc """
-  Highlights all code block in an already generated HTML document.
+  Highlights all code in HTML (fenced code blocks and inlined code)
+  """
+  def highlight_all(html) do
+    highlight_code_blocks(html) |> highlight_code_inlined()
+  end
+
+  @doc """
+  Highlights fenced code blocks in HTML document
   """
   def highlight_code_blocks(html) do
     ~r/<pre><code(?:\s+class="(\w*)")?>([^<]*)<\/code><\/pre>/
@@ -16,6 +23,31 @@ defmodule Home73k.Highlighter do
   end
 
   defp highlight_code_block(_full_block, lang, code) do
+    # perform the code highlighting
+    highlighted = highlight_code(lang, code)
+    # return properly wrapped highlighted code
+    ~s(<pre class="chroma"><code class="language-#{lang}">#{highlighted}</code></pre>)
+  end
+
+  @doc """
+  Highlights inlined code in HTML document
+  """
+  def highlight_code_inlined(html) do
+    ~r/<code(?:\s+class="inline lang-(\w*)")?>([^<]*)<\/code>/
+    |> Regex.replace(html, &highlight_code_inline(&1, &2, &3))
+  end
+
+  defp highlight_code_inline(_full_block, lang, code) do
+    # perform the code highlighting
+    highlighted = highlight_code(lang, code)
+    # return properly wrapped highlighted code
+    ~s(<code class="inline chroma language-#{lang}">#{highlighted}</code>)
+  end
+
+  # """
+  # Performs code highlighting using chroma
+  # """
+  defp highlight_code(lang, code) do
     # unescape the code
     unescaped_code = unescape_html(code) |> IO.iodata_to_binary()
 
@@ -25,12 +57,12 @@ defmodule Home73k.Highlighter do
 
     # use chroma to highlight the code via temp file
     bin_args = ["-l", lang, "-f", "html", "--html-only", "--html-prevent-surrounding-pre", tmp_file]
-    {highlighted, _} = System.cmd(@chroma_bin, bin_args)
-
-    # return properly wrapped highlighted code
-    ~s(<pre class="chroma"><code class="language-#{lang}">#{highlighted}</code></pre>)
+    System.cmd(@chroma_bin, bin_args) |> elem(0)
   end
 
+  # """
+  # Code below for unescaping html, since it's escaped by Earmark markdown parsing
+  # """
   entities = [{"&amp;", ?&}, {"&lt;", ?<}, {"&gt;", ?>}, {"&quot;", ?"}, {"&#39;", ?'}]
 
   for {encoded, decoded} <- entities do

lib/home73k_web/live/blog_live.ex

@@ -60,7 +60,7 @@ defmodule Home73kWeb.BlogLive do
   defp init_per_live_action(:show, socket, %{"id" => id}) do
     post = Blog.get_post_by_id!(id)
     socket
-    |> assign(:page_title, "Blog \\ post.title")
+    |> assign(:page_title, "Blog \\ #{post.title}")
     |> assign(:posts, [post])
     |> assign(:page_count, nil)
     |> assign_prev_next(0)