3djc/add f gets (#3998)

* Introduce f_gets()

* Comment out debug TRACE

* Windows editing protection

* Store strlen result + uncrustify

* Uncrustify was probably too harsh !

* Cosmetics

radio/src/storage/modelslist.h

@@ -229,26 +229,19 @@ class ModelsList
 
     bool readNextLine(char * line, int maxlen)
     {
-      char c;
-      unsigned int read;
-      int len=0;
-      while (1) {
-        FRESULT result = f_read(&file, (uint8_t *)&c, 1, &read);
-        if (result != FR_OK || read != 1) {
-          line[len] = '\0';
-          return false;
-        }
-        if (c == '\n') {
-          if (len > 0) {
-            // we skip empty lines
-            line[len] = '\0';
-            return true;
+      if (f_gets(line, maxlen, &file) != NULL) {
+        int curlen = strlen(line) - 1;
+        if (line[curlen] == '\n') { // remove unwanted chars if file was edited using windows
+          if (line[curlen - 1] == '\r') {
+            line[curlen - 1] = 0;
+          }
+          else {
+            line[curlen] = 0;
           }
         }
-        else if (c != '\r' && len < maxlen) {
-          line[len++] = c;
-        }
+        return true;
       }
+      return false;
     }
 
     ModelsCategory * createCategory()

radio/src/targets/simu/simpgmspace.cpp

@@ -155,7 +155,7 @@ void simuInit()
 void simuSetKey(uint8_t key, bool state)
 {
   // if (state) TRACE("simuSetKey(%d, %d)", key, state);
-  
+
   switch (key) {
 #if !defined(PCBHORUS)
     KEY_CASE(KEY_MENU, KEYS_GPIO_REG_MENU, KEYS_GPIO_PIN_MENU)
@@ -219,7 +219,7 @@ void simuSetTrim(uint8_t trim, bool state)
 void simuSetSwitch(uint8_t swtch, int8_t state)
 {
   // TRACE("simuSetSwitch(%d, %d)", swtch, state);
-  
+
   switch (swtch) {
 #if defined(PCBFLAMENCO)
     // SWITCH_3_CASE(0, SWITCHES_GPIO_REG_A_L, SWITCHES_GPIO_REG_A_H, SWITCHES_GPIO_PIN_A_L, SWITCHES_GPIO_PIN_A_H)
@@ -694,6 +694,18 @@ FRESULT f_write (FIL* fil, const void* data, UINT size, UINT* written)
   return FR_OK;
 }
 
+TCHAR * f_gets (TCHAR* buff, int len, FIL* fil)
+{
+  if (fil && fil->obj.fs) {
+    buff = fgets(buff, len, (FILE*)fil->obj.fs);
+    if (buff != NULL) {
+      fil->fptr = *buff;
+    }
+    // TRACE("fgets(%p) %u, %s", fil->obj.fs, len, buff);
+  }
+  return buff;
+}
+
 FRESULT f_lseek (FIL* fil, DWORD offset)
 {
   if (fil && fil->obj.fs) fseek((FILE*)fil->obj.fs, offset, SEEK_SET);