plugin: search,sort: Handle UTF-8 BOM at the start of file.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24081 a1c6a512-1295-4272-9138-f99709370657

apps/plugin.c

@@ -675,6 +675,7 @@ static const struct plugin_api rockbox_api = {
     pcmbuf_beep,
 #endif
     crc_32,
+    open_utf8,
 };
 
 int plugin_load(const char* plugin, const void* parameter)

apps/plugin.h

@@ -135,7 +135,7 @@ void* plugin_get_buffer(size_t *buffer_size);
 #define PLUGIN_MAGIC 0x526F634B /* RocK */
 
 /* increase this every time the api struct changes */
-#define PLUGIN_API_VERSION 176
+#define PLUGIN_API_VERSION 177
 
 /* update this to latest version if a change to the api struct breaks
    backwards compatibility (and please take the opportunity to sort in any
@@ -329,24 +329,27 @@ struct plugin_api {
     unsigned (*lcd_remote_get_foreground)(void);
     void     (*lcd_remote_set_background)(unsigned background);
     unsigned (*lcd_remote_get_background)(void);
-    void (*lcd_remote_bitmap_part)(const fb_remote_data *src, int src_x, int src_y,
+    void (*lcd_remote_bitmap_part)(const fb_remote_data *src,
-                                   int stride, int x, int y, int width, int height);
+                                   int src_x, int src_y, int stride,
-    void (*lcd_remote_bitmap)(const fb_remote_data *src, int x, int y, int width,
+                                   int x, int y, int width, int height);
-                              int height);
+    void (*lcd_remote_bitmap)(const fb_remote_data *src, int x, int y,
+                              int width, int height);
 #endif
-    void (*viewport_set_defaults)(struct viewport *vp, enum screen_type screen);
+    void (*viewport_set_defaults)(struct viewport *vp,
+                                  const enum screen_type screen);
     /* list */
     void (*gui_synclist_init)(struct gui_synclist * lists,
             list_get_name callback_get_item_name, void * data,
             bool scroll_all,int selected_size,
             struct viewport parent[NB_SCREENS]);
     void (*gui_synclist_set_nb_items)(struct gui_synclist * lists, int nb_items);
-    void (*gui_synclist_set_icon_callback)(struct gui_synclist * lists, list_get_icon icon_callback);
+    void (*gui_synclist_set_icon_callback)(struct gui_synclist * lists,
+                                           list_get_icon icon_callback);
     int (*gui_synclist_get_nb_items)(struct gui_synclist * lists);
     int  (*gui_synclist_get_sel_pos)(struct gui_synclist * lists);
     void (*gui_synclist_draw)(struct gui_synclist * lists);
     void (*gui_synclist_select_item)(struct gui_synclist * lists,
-    int item_number);
+                                     int item_number);
     void (*gui_synclist_add_item)(struct gui_synclist * lists);
     void (*gui_synclist_del_item)(struct gui_synclist * lists);
     void (*gui_synclist_limit_scroll)(struct gui_synclist * lists, bool scroll);
@@ -358,7 +361,7 @@ struct plugin_api {
                                         const struct text_message * yes_message,
                                         const struct text_message * no_message);
     void (*simplelist_info_init)(struct simplelist_info *info, char* title,
-           int count, void* data);
+                                 int count, void* data);
     bool (*simplelist_show_list)(struct simplelist_info *info);
 
     /* button */
@@ -431,7 +434,8 @@ struct plugin_api {
     void (*yield)(void);
     volatile long* current_tick;
     long (*default_event_handler)(long event);
-    long (*default_event_handler_ex)(long event, void (*callback)(void *), void *parameter);
+    long (*default_event_handler_ex)(long event,
+            void (*callback)(void *), void *parameter);
     unsigned int (*create_thread)(void (*function)(void), void* stack,
                                   size_t stack_size, unsigned flags,
                                   const char *name
@@ -554,7 +558,8 @@ struct plugin_api {
     const char * (*sound_unit)(int setting);
     int (*sound_val2phys)(int setting, int value);
 #ifndef SIMULATOR
-    void (*mp3_play_data)(const unsigned char* start, int size, void (*get_more)(unsigned char** start, size_t* size));
+    void (*mp3_play_data)(const unsigned char* start, int size,
+                          void (*get_more)(unsigned char** start, size_t* size));
     void (*mp3_play_pause)(bool play);
     void (*mp3_play_stop)(void);
     bool (*mp3_is_playing)(void);
@@ -849,6 +854,7 @@ struct plugin_api {
                         int amplitude);
 #endif
     unsigned (*crc_32)(const void *src, unsigned len, unsigned crc32);
+    int (*open_utf8)(const char* pathname, int flags);
 };
 
 /* plugin header */

apps/plugins/search.c

@@ -29,7 +29,7 @@ PLUGIN_HEADER
 static int fd;
 static int fdw;
 
-static int file_size;
+static int file_size, bomsize;
 static int results = 0;
 
 static char buffer[BUFFER_SIZE+1];
@@ -57,13 +57,8 @@ static void fill_buffer(int pos){
     int found = false ;
     const char crlf = '\n';
 
-    if (pos>=file_size-BUFFER_SIZE)
+    rb->lseek(fd, pos+bomsize, SEEK_SET);
-        pos = file_size-BUFFER_SIZE;
+    numread = rb->read(fd, buffer, MIN(BUFFER_SIZE, file_size-pos));
-    if (pos<0)
-        pos = 0;
-
-    rb->lseek(fd, pos, SEEK_SET);
-    numread = rb->read(fd, buffer, BUFFER_SIZE);
 
     buffer[numread] = 0;
     line_end = 0;
@@ -120,11 +115,15 @@ static bool search_init(const char* file){
     if (!rb->kbd_input(search_string,sizeof search_string)){
         clear_display();
         rb->splash(0, "Searching...");
-        fd = rb->open(file, O_RDONLY);
+        fd = rb->open_utf8(file, O_RDONLY);
         if (fd < 0)
             return false;
 
-        fdw = rb->creat(resultfile);
+        bomsize = rb->lseek(fd, 0, SEEK_CUR);
+        if (bomsize)
+            fdw = rb->open_utf8(resultfile, O_WRONLY|O_CREAT|O_TRUNC);
+        else
+            fdw = rb->open(resultfile, O_WRONLY|O_CREAT|O_TRUNC);
 
         if (fdw < 0) {
 #ifdef HAVE_LCD_BITMAP
@@ -136,7 +135,7 @@ static bool search_init(const char* file){
             return false;
         }
 
-        file_size = rb->lseek(fd, 0, SEEK_END);
+        file_size = rb->lseek(fd, 0, SEEK_END) - bomsize;
 
         return true;
     }
@@ -177,7 +176,7 @@ enum plugin_status plugin_start(const void* parameter)
     rb->splash(HZ, "Done");
     rb->close(fdw);
     rb->close(fd);
+    rb->reload_directory();
 
-    /* We fake a USB connection to force a reload of the file browser */
+    return PLUGIN_OK;
-    return PLUGIN_USB_CONNECTED;
 }

apps/plugins/sort.c

@@ -65,6 +65,7 @@ static int num_entries;
 static char **pointers;
 static char *stringbuffer;
 static char crlf[2] = "\r\n";
+static int bomsize;
 
 /* Compare function for sorting backwards */
 static int compare(const void* p1, const void* p2)
@@ -86,11 +87,14 @@ int read_buffer(int offset)
     char *buf_ptr;
     char *tmp_ptr;
     int readsize;
-    
+
-    fd = rb->open(filename, O_RDONLY);
+    fd = rb->open_utf8(filename, O_RDONLY);
     if(fd < 0)
         return 10 * fd - 1;
 
+    bomsize = rb->lseek(fd, 0, SEEK_CUR);
+    offset += bomsize;
+
     /* Fill the buffer from the file */
     rb->lseek(fd, offset, SEEK_SET);
     readsize = rb->read(fd, stringbuffer, buf_size);
@@ -127,7 +131,7 @@ int read_buffer(int offset)
         num_entries++;
         buf_ptr++;
     } while(buf_ptr < stringbuffer + readsize);
-    
+
     return 0;
 }
 
@@ -140,7 +144,11 @@ static int write_file(void)
 
     /* Create a temporary file */
     rb->snprintf(tmpfilename, MAX_PATH+1, "%s.tmp", filename);
-    fd = rb->creat(tmpfilename);
+    if (bomsize)
+        fd = rb->open_utf8(tmpfilename, O_WRONLY|O_CREAT|O_TRUNC);
+    else
+        fd = rb->open(tmpfilename, O_WRONLY|O_CREAT|O_TRUNC);
+
     if(fd < 0)
         return 10 * fd - 1;
 
@@ -191,16 +199,16 @@ enum plugin_status plugin_start(const void* parameter)
 
     rb->lcd_clear_display();
     rb->splash(0, "Loading...");
-    
+
     rc = read_buffer(0);
     if(rc == 0) {
         rb->lcd_clear_display();
         rb->splash(0, "Sorting...");
         sort_buffer();
-        
+
         rb->lcd_clear_display();
         rb->splash(0, "Writing...");
-        
+
         rc = write_file();
         if(rc < 0) {
             rb->lcd_clear_display();
@@ -218,6 +226,6 @@ enum plugin_status plugin_start(const void* parameter)
             rb->splash(HZ, "The file is too big");
         }
     }
-    
+
     return PLUGIN_OK;
 }