From a93aac82d2f19a1eaccfe3799d09e0438fa357eb Mon Sep 17 00:00:00 2001
From: Asko Nõmm <asko@bien.ee>
Date: Sun, 24 Apr 2022 16:00:27 +0300
Subject: Do not correct when in code block

---
 resources/test/core.md                         |  7 ++++++-
 resources/test/core_result.html                |  3 +++
 src/clarktown/correctors/atx_heading_block.clj | 17 ++++++++++++++---
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/resources/test/core.md b/resources/test/core.md
index f65b20e..eefc4f7 100644
--- a/resources/test/core.md
+++ b/resources/test/core.md
@@ -79,6 +79,11 @@ This is ___bold italic text___ and ***this is also***. *What about italic text t
       2. Continuing sub list item
 * Continuing list item
 
+```
+code goes here.
+# This is a heading.
+```
+
 This is a H1 heading with settext
 =================================
 
@@ -90,4 +95,4 @@ Testing paragraph right before a code block
 code goes here
 ```
 # Heading goes here
-Paragraph right after heading
\ No newline at end of file
+Paragraph right after heading
diff --git a/resources/test/core_result.html b/resources/test/core_result.html
index 39e8562..54273e0 100644
--- a/resources/test/core_result.html
+++ b/resources/test/core_result.html
@@ -56,6 +56,9 @@ function markdownToHTML(markdown) {
 
 <ul><li>List item</li><li>Another list item<ul><li>Sub list item</li><li>Another sub list item<ol><li>Sub sub list item</li><li>Continuing sub list item</li></ol></li></ul></li><li>Continuing list item</li></ul>
 
+<pre><code>code goes here.
+# This is a heading.</code></pre>
+
 <h1>This is a H1 heading with settext</h1>
 
 <h2>And this is a H2 heading with settext</h2>
diff --git a/src/clarktown/correctors/atx_heading_block.clj b/src/clarktown/correctors/atx_heading_block.clj
index 9ff789e..361b9b9 100644
--- a/src/clarktown/correctors/atx_heading_block.clj
+++ b/src/clarktown/correctors/atx_heading_block.clj
@@ -3,6 +3,15 @@
     [clojure.string :as string]))
 
 
+(defn- in-code-block?
+  "Determines whether the current `line` is within a code block."
+  [lines index]
+  (->> (take index lines)
+       (filter #(string/starts-with? (string/trim %) "```"))
+       count
+       odd?))
+
+
 (defn empty-line-above?
   "Determines whether there's a need for an empty new line 
   above the `line` at the current `index`. In the case of a 
@@ -13,8 +22,9 @@
   (and (string/starts-with? (string/trim line) "#")
        (> index 0)
        (not (= (-> (nth lines (- index 1))
-                   string/trim) ""))))
-
+                   string/trim) ""))
+       (not (in-code-block? lines index))))     
+       
 
 (defn empty-line-below?
   "Determines whether there's a need for an empty new line
@@ -26,4 +36,5 @@
   (and (string/starts-with? (string/trim line) "#")
        (< index (- (count lines) 1))
        (not (= (-> (nth lines (+ index 1))
-                   string/trim) ""))))
+                   string/trim) ""))
+       (not (in-code-block? lines index))))
-- 
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