add md code block support (basic)

README.md

@@ -49,7 +49,7 @@ nix build .#raw
 - [ ] checkboxes
 - [ ] images
 - [ ] links
-- [ ] codeblocks
+- [X] codeblocks
 - [ ] subscript
 - [ ] highlight
 - [ ] italics

nixite/md.nix

@@ -46,9 +46,22 @@ in rec {
 
   mdBlock = block:
     let
-      m = heading block;
-      h = if m == null then 0 else builtins.stringLength (builtins.elemAt m 0);
-    in if m == null then elems.p { } block else H h (builtins.elemAt m 1);
+      h = heading block;
+      c = code block;
+    in (if h.matched then h.block else 
+    if c.matched then c.block else
+    elems.p block);
 
-  heading = block: builtins.match "(#+) (.*)" block;
+  heading = block: let
+    m = builtins.match "(#+) (.*)" block;
+    l = builtins.stringLength (builtins.elemAt m 0);
+    in
+    if m == null then { matched = false; inherit block; }
+    else { matched = true; block = H l (builtins.elemAt m 1); };
+
+  code = block: let
+    m = builtins.match "(```)(.*)(```)" block;
+    in
+    if m == null then { matched = false; inherit block; }
+    else { matched = true; block = elems.code (builtins.elemAt m 1); };
 }

testing/md.test.nix

@@ -5,23 +5,29 @@ let
 in with md; [
 
   (it "gets md heading" {
-    actual = mdBlock ''
-      # title of the page'';
+    actual = mdBlock "# title of the page";
     expected = elems.h1 "title of the page";
   })
 
   (it "gets md heading 2" {
-    actual = mdBlock ''
-      ## a subheading'';
+    actual = mdBlock "## a subheading";
     expected = elems.h2 "a subheading";
   })
 
   (it "limits to 6 #" {
-    actual = mdBlock ''
-      ######## super ultra tiny heading'';
+    actual = mdBlock "######## super ultra tiny heading";
     expected = elems.h6 "super ultra tiny heading";
   })
 
+  (it "makes a code block" (
+  let code = ''
+    this is my code
+  ''; in {
+    actual = mdBlock ''
+    ```${code}```'';
+    expected = elems.code code;
+  }))
+
   (it "processes md block" {
     actual = readMd ''
       # foo bar