From 69ec986af735961aee47229db35a86d150f17ff2 Mon Sep 17 00:00:00 2001
From: Vladimir Petrigo <taenaru@gmail.com>
Date: Fri, 21 Dec 2018 11:37:59 +0300
Subject: [PATCH 1/3] minmea: Allow lines with only CR ending

---
 minmea.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/minmea.c b/minmea.c
index 32f7881..e0e0939 100644
--- a/minmea.c
+++ b/minmea.c
@@ -79,7 +79,7 @@ bool minmea_check(const char *sentence, bool strict)
     }
 
     // The only stuff allowed at this point is a newline.
-    if (*sentence && strcmp(sentence, "\n") && strcmp(sentence, "\r\n"))
+    if (*sentence && strcmp(sentence, "\n") != 0 && strcmp(sentence, "\r") != 0 && strcmp(sentence, "\r\n") != 0)
         return false;
 
     return true;

From f75678a4268f52873d7b1e62c26e9a284e078444 Mon Sep 17 00:00:00 2001
From: Vladimir Petrigo <vladimir.petrigo@gmail.com>
Date: Sun, 22 May 2022 16:01:09 +0300
Subject: [PATCH 2/3] Fix PR comments

Update CR and LF symbols skipping at the end of the line
---
 minmea.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/minmea.c b/minmea.c
index e0e0939..1328f48 100644
--- a/minmea.c
+++ b/minmea.c
@@ -79,8 +79,13 @@ bool minmea_check(const char *sentence, bool strict)
     }
 
     // The only stuff allowed at this point is a newline.
-    if (*sentence && strcmp(sentence, "\n") != 0 && strcmp(sentence, "\r") != 0 && strcmp(sentence, "\r\n") != 0)
+    while (*sentence == '\r' || *sentence == '\n') {
+        sentence++;
+    }
+    
+    if (*sentence) {
         return false;
+    }
 
     return true;
 }

From 908846d4f67bb86e514b2a5e2d6d4f58ec1a71f1 Mon Sep 17 00:00:00 2001
From: Kosma Moczek <kosma@kosma.pl>
Date: Fri, 3 Jun 2022 00:44:58 +0200
Subject: [PATCH 3/3] add tests for newline handling

---
 tests.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests.c b/tests.c
index c2ae730..388df29 100644
--- a/tests.c
+++ b/tests.c
@@ -18,6 +18,11 @@
 
 static const char *valid_sentences_nochecksum[] = {
     "$GPTXT,xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+    "$GPTXT,hello\n",
+    "$GPTXT,hello\r",
+    "$GPTXT,hello\r\n",
+    "$GPTXT,hello\r\n\r\n",
+    "$GPTXT,hello\n\r\r\n",
     NULL,
 };
 
@@ -55,6 +60,9 @@ static const char *invalid_sentences[] = {
     "gps: $GPGLL,,,,,,V,N",
     "$GPXTE,A,A,0.67,L,N*6e",
     "$GPXTE,A,A,0.67,L,N*6g",
+    "$GPTXT,hello\n ",
+    "$GPTXT,hello\r*24",
+    "$GPTXT,hello\r\n$",
     NULL,
 };