From f9bc2c5cb1dd5fc1f287b034812c5bccb909e7df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=94=90=E4=BD=90=E6=9E=97?= <delphi_tang@dt4sw.com>
Date: Thu, 7 Oct 2021 14:04:12 +0000
Subject: [PATCH] update lite-python/lib/utils/stdout.c.

---
 lite-python/lib/utils/stdout.c | 45 ++++++++++++++++++++--------------
 1 file changed, 26 insertions(+), 19 deletions(-)

diff --git a/lite-python/lib/utils/stdout.c b/lite-python/lib/utils/stdout.c
index e3b202c..87e730c 100755
--- a/lite-python/lib/utils/stdout.c
+++ b/lite-python/lib/utils/stdout.c
@@ -26,37 +26,44 @@ SOFTWARE.
 
 *****************************************************************************/
 
+#include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 #include "py/mpconfig.h"
 #include "py/mphal.h"
 
-// Send string of given length
-void mp_hal_stdout_tx_strn(const char* str, size_t len) 
-{
-    extern int putchar(int ch);
+static void mp_hal_stdout_print_native(const char* str, size_t len) 
+{    
+    int i = 0;
     
-    while( len-- )
-    {
-        putchar(*str++);
-    }
-}
-
-void mp_hal_stdout_tx_strn_cooked(const char* str, size_t len)
-{
-    while( len-- ) 
+    while( i < len )
     {
-        if( *str == '\n' ) 
+        if( str[i] == '\r' )
         {
-            mp_hal_stdout_tx_strn("\r", 1);
+            putchar('\r');
+            putchar('\n');
+                
+            if( (str[i+1] == '\n') || (str[i+1] == '\0') )
+            {
+                i++;
+            }
+        }
+        else if( str[i] == '\n' )
+        {
+            putchar('\r');
+            putchar('\n');
+        }
+        else
+        {
+            putchar(str[i]);    
         }
         
-        mp_hal_stdout_tx_strn(str++, 1);
+        i++;
     }
 }
 
-// Send zero-terminated string
-void mp_hal_stdout_tx_str(const char *str)
+void mp_hal_stdout_tx_strn_cooked(const char* str, size_t len)
 {
-    mp_hal_stdout_tx_strn(str, strlen(str));
+    mp_hal_stdout_print_native(str, len);
 }
+
-- 
Gitee