From af47249492a23e0eb6847a081bb5e47136a3e225 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Hru=C5=A1ka?= <ondra@ondrovo.com>
Date: Sat, 19 Aug 2017 03:02:23 +0200
Subject: [PATCH] NLM

---
 user/ansi_parser_callbacks.c |  3 +++
 user/screen.c                | 14 ++++++++++++++
 user/screen.h                |  2 ++
 3 files changed, 19 insertions(+)

diff --git a/user/ansi_parser_callbacks.c b/user/ansi_parser_callbacks.c
index ec74486..3d8028e 100644
--- a/user/ansi_parser_callbacks.c
+++ b/user/ansi_parser_callbacks.c
@@ -261,6 +261,9 @@ apars_handle_CSI(char leadchar, int *params, int count, char keychar)
 					if (n == 4) {
 						screen_set_insert_mode(yn);
 					}
+					else if (n == 20) {
+						screen_set_newline_mode(yn);
+					}
 					else {
 //						ansi_warn("NOIMPL flag %d", n);
 					}
diff --git a/user/screen.c b/user/screen.c
index 29a101b..e74aa64 100644
--- a/user/screen.c
+++ b/user/screen.c
@@ -39,6 +39,8 @@ static struct {
 	bool numpad_alt_mode;   //!< Application Mode - affects how user input of control keys is sent
 	bool cursors_alt_mode; //!< Application mode for cursor keys
 
+	bool newline_mode;
+
 	char charset0;
 	char charset1;
 } scr;
@@ -194,6 +196,7 @@ screen_reset(void)
 
 	scr.numpad_alt_mode = false;
 	scr.cursors_alt_mode = false;
+	scr.newline_mode = false;
 
 	scr.charset0 = 'B';
 	scr.charset1 = '0';
@@ -701,6 +704,13 @@ screen_set_cursors_alt_mode(bool alt_mode)
 	scr.cursors_alt_mode = alt_mode;
 	NOTIFY_DONE();
 }
+
+void ICACHE_FLASH_ATTR
+screen_set_newline_mode(bool nlm)
+{
+	scr.newline_mode = nlm;
+}
+
 //endregion
 
 //region --- Printing ---
@@ -720,6 +730,10 @@ screen_putchar(const char *ch)
 	switch (ch[0]) {
 		case '\r':
 			screen_cursor_set_x(0);
+			if (scr.newline_mode) {
+				// like LF
+				screen_cursor_move(1, 0, true);
+			}
 			goto done;
 
 		case '\n':
diff --git a/user/screen.h b/user/screen.h
index b174af2..467cd0b 100644
--- a/user/screen.h
+++ b/user/screen.h
@@ -167,6 +167,8 @@ void screen_cursor_restore(bool withAttrs);
 void screen_cursor_visible(bool visible);
 /** Enable auto wrap */
 void screen_wrap_enable(bool enable);
+/** Enable CR auto */
+void screen_set_newline_mode(bool nlm);
 
 // --- Colors ---