From c0e791dbe9a25b830e46511117d2c5ed6a5c4be4 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Tue, 13 Oct 2015 03:58:11 -0700
Subject: [PATCH] Only look for "N" line number as first parameter
---
Marlin/Marlin_main.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 44102ef1801..1b2503872c4 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -834,8 +834,10 @@ void get_command() {
fromsd[cmd_queue_index_w] = false;
#endif
- char *npos = strchr(command, 'N');
- char *apos = strchr(command, '*');
+ while (*command == ' ') command++; // skip any leading spaces
+ char* npos = (*command == 'N') ? command : NULL; // Require the N parameter to start the line
+ char* apos = strchr(command, '*');
+
if (npos) {
boolean M110 = strstr_P(command, PSTR("M110")) != NULL;