From a4d5dd4420bc22b090408f92f6e4c451fb38a80f Mon Sep 17 00:00:00 2001
From: Marshall Lochbaum <mwlochbaum@gmail.com>
Date: Wed, 23 Sep 2020 22:39:13 -0400
Subject: Catch errors when evaluating markdown code blocks and print ERROR

---
 md.bqn | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/md.bqn b/md.bqn
index f28d4dcc..43602132 100644
--- a/md.bqn
+++ b/md.bqn
@@ -58,7 +58,7 @@ PrecedesGroup ← {
   # false value, and normal indices are increased by 1.
   𝕨 ∾˜↩ 0
   inds ← 1 + ↕≠𝕩
-  # Zero out indices where x was true, and find the greatest index so
+  # Zero out indices where 𝕩 was true, and find the greatest index so
   # far at each position.
   last ← ⌈` inds × ¬𝕩
   last ⊏ 𝕨
@@ -193,7 +193,7 @@ Markdown ← {filename𝕊𝕩:
       (⊑g⊐1) (<⟜(≠g))◶⟨1,¬(" "∾∾idChars)∧´∘∊˜↑⟩ 𝕩
     }
     r‿ri ← addRslt◶(2⥊<⟨⟩)‿{
-      ⟨ (ShowRslt ⊣◶⟨"",(⥊∾⟜lf⎉1)∘Fmt∘⊢⟩ CodeExec)⍟(0<≠)¨ 𝕩
+      ⟨ (ShowRslt ⊣◶⟨"",(⥊∾⟜lf⎉1)∘Fmt∘⊢⟩ CodeExec)⎊"ERROR"⍟(0<≠)¨ 𝕩
         1 -˜ +` 1 + ≠¨ 𝕩   ⟩ # Don't forget the trailing newline
     } 𝕩
 
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