feat(single): Implement code blocks

1 files changed, 20 insertions, 1 deletions

diff --git a/single.awk b/single.awk
index 87e6734..47cb391 100644
--- a/single.awk
+++ b/single.awk
@@ -7,8 +7,8 @@
 #     [x] Headers (atx and setex)
 #     [x] Blockquotes
 #     [ ] Lists
-#     [ ] Code blocks
 #     [ ] Horizontal rules
+#     [x] Code blocks
 # [ ] Span elements
 #     [ ] Links
 #         [ ] Inline
@@ -99,6 +99,25 @@ blockquote_level > 0 && empty0 {
 }
 /^>$/ { $0 = ""; not_paragraph = 1 }
 
+# Code blocks
+/^    / {
+	if (!inside_codeblock) {
+		P1 = P1 "<pre><code>"
+		inside_codeblock = 1
+	}
+	_next()
+}
+inside_codeblock && ! /^[ \t]*$/ {
+	if (emptyP1) {
+		P2 = P2 ORS "</code></pre>"
+	}
+	else {
+		P1 = P1 ORS "</code></pre>"
+	}
+	inside_codeblock = 0
+	emptyP1 = 1
+}
+
 # Line break
 /  $/ {
 	sub(/[ \t]*  $/, "</br>")