First Commit

libraries/SdFat/examples/UnicodeFilenames/UnicodeFilenames.ino

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+// Simple test of Unicode filename.
+// Unicode is supported as UTF-8 encoded strings.
+#include "SdFat.h"
+
+// USE_UTF8_LONG_NAMES must be non-zero in SdFat/src/SdFatCongfig.h
+#if USE_UTF8_LONG_NAMES
+
+#define UTF8_FOLDER u8"😀"
+const char* names[] = {u8"россиянин", u8"très élégant", u8"狗.txt", nullptr};
+
+// Remove files if non-zero.
+#define REMOVE_UTF8_FILES 1
+
+// SD_FAT_TYPE = 0 for SdFat/File as defined in SdFatConfig.h,
+// 1 for FAT16/FAT32, 2 for exFAT, 3 for FAT16/FAT32 and exFAT.
+#define SD_FAT_TYPE 0
+
+// SDCARD_SS_PIN is defined for the built-in SD on some boards.
+#ifndef SDCARD_SS_PIN
+const uint8_t SD_CS_PIN = SS;
+#else   // SDCARD_SS_PIN
+// Assume built-in SD is used.
+const uint8_t SD_CS_PIN = SDCARD_SS_PIN;
+#endif  // SDCARD_SS_PIN
+
+// Try to select the best SD card configuration.
+#if HAS_SDIO_CLASS
+#define SD_CONFIG SdioConfig(FIFO_SDIO)
+#elif ENABLE_DEDICATED_SPI
+#define SD_CONFIG SdSpiConfig(SD_CS_PIN, DEDICATED_SPI, SD_SCK_MHZ(16))
+#else  // HAS_SDIO_CLASS
+#define SD_CONFIG SdSpiConfig(SD_CS_PIN, SHARED_SPI, SD_SCK_MHZ(16))
+#endif  // HAS_SDIO_CLASS
+
+#if SD_FAT_TYPE == 0
+SdFat sd;
+File file;
+#elif SD_FAT_TYPE == 1
+SdFat32 sd;
+File32 file;
+#elif SD_FAT_TYPE == 2
+SdExFat sd;
+ExFile file;
+#elif SD_FAT_TYPE == 3
+SdFs sd;
+FsFile file;
+#else  // SD_FAT_TYPE
+#error Invalid SD_FAT_TYPE
+#endif  // SD_FAT_TYPE
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial) {
+    yield();
+  }
+  Serial.println("Type any character to begin");
+  while (!Serial.available()) {
+    yield();
+  }
+  if (!sd.begin(SD_CONFIG)) {
+    sd.initErrorHalt(&Serial);
+  }
+  if (!sd.exists(UTF8_FOLDER)) {
+    if (!sd.mkdir(UTF8_FOLDER)) {
+      Serial.println("sd.mkdir failed");
+      return;
+    }
+  }
+  if (!sd.chdir(UTF8_FOLDER)) {
+    Serial.println("sd.chdir failed");
+    return;
+  }
+  for (uint8_t i = 0; names[i]; i++) {
+    if (!file.open(names[i], O_WRONLY | O_CREAT)) {
+      Serial.println("file.open failed");
+      return;
+    }
+    file.println(names[i]);
+    file.close();
+  }
+  Serial.println("ls:");
+  sd.ls("/", LS_SIZE | LS_R);
+#if REMOVE_UTF8_FILES  // For debug test of remove and rmdir.
+  for (uint8_t i = 0; names[i]; i++) {
+    sd.remove(names[i]);
+  }
+  sd.chdir();
+  sd.rmdir(UTF8_FOLDER);
+  Serial.println("After remove and rmdir");
+  sd.ls(LS_SIZE | LS_R);
+#endif  // REMOVE_UTF8_FILES
+  Serial.println("Done!");
+}
+void loop() {}
+#else  // USE_UTF8_LONG_NAMES
+#error USE_UTF8_LONG_NAMES must be non-zero in SdFat/src/SdFatCongfig.h
+#endif  // USE_UTF8_LONG_NAMES