deal with uart.on api when required char number is 0

app/include/user_config.h

@@ -2,7 +2,7 @@
 #define __USER_CONFIG_H__
 
 #define NODE_VERSION	"NodeMcu 0.9.4"
-#define BUILD_DATE	"build 20141226"
+#define BUILD_DATE	"build 20141230"
 #define FLASH_512K
 // #define FLASH_1M
 // #define FLASH_2M

app/lua/lua.c

@@ -678,6 +678,12 @@ void ICACHE_FLASH_ATTR readline(lua_Load *load){
 
     ch = 0;
   }
+  
+  if( (load->line_position > 0) && (!run_input) && (need_len==0) && (end_char<0) )
+  {
+    uart_on_data_cb(load->line, load->line_position);
+    load->line_position = 0;
+  }
   // if there is no input from user, repeat readline()
   os_timer_disarm(&readline_timer);
   os_timer_setfn(&readline_timer, (os_timer_func_t *)readline, load);

app/modules/uart.c

@@ -28,7 +28,7 @@ bool ICACHE_FLASH_ATTR uart_on_data_cb(const char *buf, size_t len){
 
 uint16_t need_len = 0;
 int16_t end_char = -1;
-// Lua: uart.on("method", function, [run_input])
+// Lua: uart.on("method", [number/char], function, [run_input])
 static int ICACHE_FLASH_ATTR uart_on( lua_State* L )
 {
   size_t sl, el;

examples/fragment.lua

@@ -307,5 +307,6 @@ wifi.sta.setip({ip="192.168.18.119",netmask="255.255.255.0",gateway="192.168.18.
 uart.on("data","\r",function(input) if input=="quit\r" then uart.on("data") else print(input) end end, 0)
 uart.on("data","\n",function(input) if input=="quit\n" then uart.on("data") else print(input) end end, 0)
 uart.on("data", 5 ,function(input) if input=="quit\r" then uart.on("data") else print(input) end end, 0)
+uart.on("data", 0 ,function(input) if input=="q" then uart.on("data") else print(input) end end, 0)
 
 uart.on("data","\r",function(input) if input=="quit" then uart.on("data") else print(input) end end, 1)