lib: add comment in utf8_to_utf32_stream()

The logic of utf8_to_utf32_stream() is not easy to understand.
Add a comment.

Signed-off-by: Heinrich Schuchardt <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/charset.c b/lib/charset.c
index 89057ef7ce2..2b43175b1d9 100644
--- a/lib/charset.c
+++ b/lib/charset.c
@@ -570,6 +570,10 @@ int utf8_to_utf32_stream(u8 c, char *buffer)
 		}
 		if (pos == end)
 			return 0;
+		/*
+		 * Appending the byte lead to an invalid UTF-8 byte sequence.
+		 * Consider it as the start of a new code sequence.
+		 */
 		*buffer = 0;
 	}
 }