Add custom plugin

plugins/pygments.moon

@@ -0,0 +1,61 @@
+html = require "sitegen.html"
+
+class CustomPygments extends require "sitegen.plugins.pygments"
+  filter: (text, page) =>
+    -- require("moon").p text
+    -- super(text, page)
+    text -- pandoc output
+    super(text, page) -- plugin output
+
+  highlight: (lang, code) =>
+    -- print "HIGHLIGHT CALLED"
+    -- require("moon").p code
+    fname = os.tmpname!
+    with io.open fname, "w"
+      \write code
+      \close!
+
+  -- p = io.popen ("pygmentize -f html -l %s %s")\format lang, fname
+  -- out = p\read"*a"
+  --
+  -- -- get rid of the div and pre inserted by pygments
+  -- assert out\match('^<div class="highlight"><pre>(.-)\n?</pre></div>'),
+  --   "Failed to parse pygmentize result, is pygments installed?"
+
+    cmd = "pygmentize -f html -O style=dracula,wrapcode,classprefix=py- -l %s %s"
+
+    if lang == "moon" or lang == "moonscript"
+      p = io.popen (cmd .. " -x")\format "moonscript.py", fname
+    --   -- p = io.popen (cmd)\format "moonscript", fname
+
+      out = p\read"*a"
+      p\close!
+      -- out
+
+      -- get rid of the div and pre inserted by pygments
+      assert out\match('^<div class="highlight"><pre>(.-)\n?</pre></div>'),
+        "Failed to parse pygmentize result, is pygments installed?"
+    else
+      if lang == nil or lang == "heex"
+        -- if block.classes[1] == nil
+        --   cb = pandoc.CodeBlock(block.text, class: "sourceCode")
+        --   pandoc.Div cb, class: "sourceCode"
+        -- else
+        --   block
+        -- "code(nil or heex): #{code}"
+        code
+      else
+        status, handle_or_error = pcall ->
+          io.popen (cmd)\format lang, fname
+
+        sout = handle_or_error\read"*a"
+        handle_or_error\close!
+
+        if sout\len! == 0
+          -- "code: #{code}"
+          -- raw code
+          code
+        else
+          -- get rid of the div and pre inserted by pygments
+          assert sout\match('^<div class="highlight"><pre>(.-)\n?</pre></div>'),
+            "Failed to parse pygmentize result, is pygments installed?"