Sorting recordings internally, with episodes sorted chronologically

HISTORY

@@ -787,7 +787,7 @@ Video Disk Recorder Revision History
 - Made the volume, mute and power keys work when a menu is active, too (thanks
   to Matthias Weingart).
 
-2001-10-06: Version 0.97
+2001-10-07: Version 0.97
 
 - Implemented a lock file to prevent more than one instance of VDR from removing
   files from the video directory at the same time.
@@ -805,3 +805,8 @@ Video Disk Recorder Revision History
 - Fixed the "EPG bugfix" (sometimes had duplicate information in Subtitle and
   Extended Description).
 - Fixed checking for valid video device when setting the video mode.
+- The external command 'sort' is no longer required. VDR now sorts the list of
+  recordings itself, making sure that recordings that stem from repeating timers
+  are sorted chronologically. Sorting is done according to the setting of the
+  current locale, so you may want to make sure LC_COLLATE is set to the desired
+  value (see INSTALL).

INSTALL

@@ -90,6 +90,24 @@ option to set the controlling terminal, as in
 
 vdr:123:respawn:/usr/local/bin/vdr --terminal=/dev/tty8 -w 60
 
+Locale
+------
+
+When presenting the list of recordings, VDR sorts the entries according to
+the current "locale" settings. This makes sure that special characters (like
+the German "umlauts") appear at the expected positions. In order to benefit
+from this you may have to set the locale environment variable, for instance
+
+  export LANG=de_DE
+
+for a German locale. If you don't want this to result in German error messages
+in the log file, it is sufficient to just set
+
+  export LC_COLLATE=de_DE
+
+which only influences the way strings are sorted and leaves error messages
+in English.
+
 Automatic restart in case of hangups:
 -------------------------------------
 

recording.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: recording.c 1.38 2001/09/30 10:29:11 kls Exp $
+ * $Id: recording.c 1.39 2001/10/07 11:00:35 kls Exp $
  */
 
 #define _GNU_SOURCE
@@ -32,7 +32,7 @@
 #define SUMMARYFILESUFFIX "/summary.vdr"
 #define MARKSFILESUFFIX   "/marks.vdr"
 
-#define FINDCMD      "find %s -follow -type d -name '%s' 2> /dev/null | sort -df"
+#define FINDCMD      "find %s -follow -type d -name '%s' 2> /dev/null"
 
 #define MINDISKSPACE 1024 // MB
 
@@ -215,6 +215,7 @@ char *ExchangeChars(char *s, bool ToFileSystem)
 cRecording::cRecording(cTimer *Timer, const char *Subtitle, const char *Summary)
 {
   titleBuffer = NULL;
+  sortBuffer = NULL;
   fileName = NULL;
   if (Timer->IsSingleEvent() || !Setup.UseSubtitle)
      name = strdup(Timer->file);
@@ -243,6 +244,7 @@ cRecording::cRecording(cTimer *Timer, const char *Subtitle, const char *Summary)
 cRecording::cRecording(const char *FileName)
 {
   titleBuffer = NULL;
+  sortBuffer = NULL;
   fileName = strdup(FileName);
   FileName += strlen(VideoDirectory) + 1;
   char *p = strrchr(FileName, '/');
@@ -302,11 +304,50 @@ cRecording::cRecording(const char *FileName)
 cRecording::~cRecording()
 {
   delete titleBuffer;
+  delete sortBuffer;
   delete fileName;
   delete name;
   delete summary;
 }
 
+char *cRecording::StripEpisodeName(char *s)
+{
+  char *t = s, *s1 = NULL, *s2 = NULL;
+  while (*t) {
+        if (*t == '/') {
+           if (s1) {
+              if (s2)
+                 s1 = s2;
+              s2 = t;
+              }
+           else
+              s1 = t;
+           }
+        t++;
+        }
+  if (s1 && s2)
+     memmove(s1 + 1, s2, t - s2 + 1);
+  return s;
+}
+
+char *cRecording::SortName(void)
+{
+  if (!sortBuffer) {
+     char *s = StripEpisodeName(strdup(FileName() + strlen(VideoDirectory) + 1));
+     int l = strxfrm(NULL, s, 0);
+     sortBuffer = new char[l];
+     strxfrm(sortBuffer, s, l);
+     delete s;
+     }
+  return sortBuffer;
+}
+
+bool cRecording::operator< (const cListObject &ListObject)
+{
+  cRecording *r = (cRecording *)&ListObject;
+  return strcasecmp(SortName(), r->SortName()) < 0;
+}
+
 const char *cRecording::FileName(void)
 {
   if (!fileName) {
@@ -409,6 +450,7 @@ bool cRecordings::Load(bool Deleted)
               delete r;
            }
      pclose(p);
+     Sort();
      result = Count() > 0;
      }
   else

recording.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: recording.h 1.17 2001/09/23 13:43:58 kls Exp $
+ * $Id: recording.h 1.18 2001/10/07 10:38:56 kls Exp $
  */
 
 #ifndef __RECORDING_H
@@ -32,9 +32,12 @@ class cRecording : public cListObject {
   friend class cRecordings;
 private:
   char *titleBuffer;
+  char *sortBuffer;
   char *fileName;
   char *name;
   char *summary;
+  char *StripEpisodeName(char *s);
+  char *SortName(void);
 public:
   time_t start;
   int priority;
@@ -42,6 +45,7 @@ public:
   cRecording(cTimer *Timer, const char *Subtitle, const char *Summary);
   cRecording(const char *FileName);
   ~cRecording();
+  virtual bool operator< (const cListObject &ListObject);
   const char *FileName(void);
   const char *Title(char Delimiter = ' ', bool NewIndicator = false);
   const char *Summary(void) { return summary; }

vdr.c

@@ -22,11 +22,12 @@
  *
  * The project's page is at http://www.cadsoft.de/people/kls/vdr
  *
- * $Id: vdr.c 1.81 2001/09/30 12:13:38 kls Exp $
+ * $Id: vdr.c 1.82 2001/10/07 10:28:32 kls Exp $
  */
 
 #define _GNU_SOURCE
 #include <getopt.h>
+#include <locale.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -75,6 +76,10 @@ static void Watchdog(int signum)
 
 int main(int argc, char *argv[])
 {
+  // Initiate locale:
+
+  setlocale(LC_ALL, "");
+
   // Command line options:
 
 #define DEFAULTSVDRPPORT 2001