Diff: mbed-dev/drivers/FilePath.cpp

Revision:

12:9a20164dcc47

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev/drivers/FilePath.cpp	Wed Jan 11 11:41:30 2017 +0000
@@ -0,0 +1,76 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "drivers/FilePath.h"
+
+namespace mbed {
+
+FilePath::FilePath(const char* file_path) : file_name(NULL), fb(NULL) {
+    if ((file_path[0] != '/') || (file_path[1] == 0)) return;
+
+    const char* file_system = &file_path[1];
+    file_name = file_system;
+    int len = 0;
+    while (true) {
+        char c = *file_name;
+        if (c == '/') { // end of object name
+            file_name++; // point to one char after the '/'
+            break;
+        }
+        if (c == 0) { // end of object name, with no filename
+            break;
+        }
+        len++;
+        file_name++;
+    }
+
+    fb = FileBase::lookup(file_system, len);
+}
+
+const char* FilePath::fileName(void) {
+    return file_name;
+}
+
+bool FilePath::isFileSystem(void) {
+    if (NULL == fb)
+        return false;
+    return (fb->getPathType() == FileSystemPathType);
+}
+
+FileSystemLike* FilePath::fileSystem(void) {
+    if (isFileSystem()) {
+        return (FileSystemLike*)fb;
+    }
+    return NULL;
+}
+
+bool FilePath::isFile(void) {
+    if (NULL == fb)
+        return false;
+    return (fb->getPathType() == FilePathType);
+}
+
+FileLike* FilePath::file(void) {
+    if (isFile()) {
+        return (FileLike*)fb;
+    }
+    return NULL;
+}
+
+bool FilePath::exists(void) {
+    return fb != NULL;
+}
+
+} // namespace mbed