wip(djot): Programmatic symbols (hook)

inputters/djot.lua

@@ -778,13 +778,9 @@ function Renderer:symbol (node)
       end
       return content
     end
-    SU.warn("Symbol '" .. node.alias .. "' was not expanded (no corresponding metadata found)")
-    local text = ":" .. node.alias .. ":"
-    if node.attr then
-      -- Add a span for attributes
-      return createCommand("markdown:internal:span", node.attr, text, pos)
-    end
-    return text
+    -- FIXME PARTIAL EXPERIRMEN A cool idea:
+    -- Cannot we get rid of predefined symbols (ABOVE) and just use programmatic symbols?
+    return createCommand("markdown:internal:symbol", node.attr or {}, node.alias, pos)
   end
 end
 
@@ -835,6 +831,8 @@ function inputter:parse (doc)
   -- Wrap it in a document structure so we can just process it, and if at
   -- root level, load a (default) support class.
   tree = createCommand("document", { class = "markdown" }, tree)
+  print("------------------")
+  --pl.pretty.dump(tree)
   return { tree }
 end
 

packages/markdown/commands.lua

@@ -778,6 +778,20 @@ Please consider using a resilient-compatible class!]])
     end
   end, "Definition item in Markdown (internal)")
 
+  self:registerCommand("markdown:internal:symbol", function (options, content)
+    -- FIXME HERE WE COULD RATHER SUPPORT PROGRAMMATIC SYMBOLS
+    local symbol = content[1]
+    SU.warn("Symbol '" .. symbol .. "' was not expanded (no corresponding metadata found)")
+
+    local text = ":" .. symbol .. ":"
+    if next(options) then
+      -- Add a span for attributes
+      SILE.call("markdown:internal:span", options, { text });
+    else
+      SILE.typesetter:typeset(text)
+    end
+  end, "Symbol in Djot (internal)")
+
   -- B. Fallback commands
 
   self:registerCommand("markdown:fallback:blockquote", function (_, content)