From c1fbc6700da0d83bc798b6b7cb7a310905dbaeb9 Mon Sep 17 00:00:00 2001
From: Syndamia <kamen@syndamia.com>
Date: Sun, 21 Jul 2024 11:50:32 +0300
Subject: (single) Implemented unordered lists

---
 single.awk | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'single.awk')

diff --git a/single.awk b/single.awk
index 6d9e80e..0262a1a 100644
--- a/single.awk
+++ b/single.awk
@@ -31,6 +31,7 @@
 BEGIN {
 	prev_blankline = blankline = 1
 	newStack("bq-level")
+	newStack("list-level")
 }
 
 {
@@ -96,6 +97,29 @@ BEGIN {
 /^(    |\t)[[:blank:]]*/ {
 }
 
+# Unordered lists
+!blankline && lengthStack("list-level") > 0 {
+	match($0, /^ */)
+	# Compensating factor for list items
+	li_offset = 2 * (substr($0, RSTART + RLENGTH, 2) ~ /(\*|\+|-) /)
+	while (RLENGTH + li_offset < topStack("list-level")) {
+		print "</ul>"
+		popStack("list-level")
+	}
+}
+/^[[:blank:]]*(\*|\+|-) / {
+	match($0, /(\*|\+|-) /)
+	if (topStack("list-level") < RSTART) {
+		print "<ul><li>"
+		pushStack("list-level", RSTART + 1)
+	}
+	else {
+		print "</li><li>"
+	}
+	$0 = substr($0, RSTART + RLENGTH)
+}
+lengthStack("list-level") > 0 { blankline = 1 }
+
 # Paragraphs
 prev_blankline && !blankline && lengthStack("bq-level") == 0 { print "<p>" }
 !prev_blankline && blankline && lengthStack("bq-level") == 0 { print "</p>" }
@@ -157,4 +181,8 @@ END {
 		print "</blockquote>"
 		popStack("bq-level")
 	}
+	while (lengthStack("list-level") > 0) {
+		print "</ul>"
+		popStack("list-level")
+	}
 }
-- 
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