From 32b11e1a5331403d27e118c81d73add78f799994 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Fri, 21 Jun 2024 06:27:20 +0200
Subject: [PATCH] Added an EPG bugfix for broadcasters who put literal "\n"
 strings in their EPG

---
 HISTORY |  5 ++++-
 epg.c   | 19 ++++++++++++++++++-
 tools.c | 35 +++++++++++++++++++----------------
 3 files changed, 41 insertions(+), 18 deletions(-)

diff --git a/HISTORY b/HISTORY
index 886188b4..b480f6a9 100644
--- a/HISTORY
+++ b/HISTORY
@@ -9919,10 +9919,13 @@ Video Disk Recorder Revision History
 - A device is now always kept occupied if a timer is in VPS margin or needs the
   transponder (thanks to Markus Ehrnsperger).
 
-2024-06-13:
+2024-06-21:
 
 - Updated the Italian OSD texts (thanks to Diego Pierotto).
 - Fixed a possible access of a deleted object in the EIT scanner.
 - Fixed setting T2 system ID from NIT (thanks to Stefan Herdler).
 - When starting an editing process, VDR now first checks whether there is enough
   free disk space to take up the edited version of the recording.
+- Added an EPG bugfix for broadcasters who put literal "\n" strings in their EPG.
+  Note that the string version of strreplace() has been modified, so that it
+  replaces all occurrences of the search string, not just the first one.
diff --git a/epg.c b/epg.c
index 61c090de..ab4a6e83 100644
--- a/epg.c
+++ b/epg.c
@@ -7,7 +7,7 @@
  * Original version (as used in VDR before 1.3.0) written by
  * Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
  *
- * $Id: epg.c 5.8 2024/03/06 20:16:51 kls Exp $
+ * $Id: epg.c 5.9 2024/06/21 06:27:20 kls Exp $
  */
 
 #include "epg.h"
@@ -885,6 +885,23 @@ void cEvent::FixEpgBugs(void)
 
 Final:
 
+  // And then there are the specially gifted people who put a literal "\n" string where there should be
+  // a '\n' character:
+  if (shortText) {
+     if (char *p = strstr(shortText, "\\n")) {
+        *p = 0;
+        p += 2;
+        char *s = strdup(shortText);
+        char *d = strdup(cString::sprintf("%s\n\n%s", p, description));
+        free(shortText);
+        free(description);
+        shortText = s;
+        description = d;
+        EpgBugFixStat(12, ChannelID());
+        }
+     }
+  description = strreplace(description, "\\n", " \n");
+
   // VDR can't usefully handle newline characters in the title, shortText or component description of EPG
   // data, so let's always convert them to blanks (independent of the setting of EPGBugfixLevel):
   strreplace(title, '\n', ' ');
diff --git a/tools.c b/tools.c
index 51165e31..0e95ca2f 100644
--- a/tools.c
+++ b/tools.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 5.10 2024/02/15 14:57:56 kls Exp $
+ * $Id: tools.c 5.11 2024/06/21 06:27:20 kls Exp $
  */
 
 #include "tools.h"
@@ -151,26 +151,29 @@ char *strreplace(char *s, char c1, char c2)
 
 char *strreplace(char *s, const char *s1, const char *s2)
 {
-  if (!s || !s1 || !s2)
+  if (!s || !s1 || !s2 || strcmp(s1, s2) == 0)
      return s;
-  char *p = strstr(s, s1);
-  if (p) {
-     int of = p - s;
+  char *q = s;
+  if (char *p = strstr(s, s1)) {
      int l  = strlen(s);
      int l1 = strlen(s1);
      int l2 = strlen(s2);
-     if (l2 > l1) {
-        if (char *NewBuffer = (char *)realloc(s, l + l2 - l1 + 1))
-           s = NewBuffer;
-        else {
-           esyslog("ERROR: out of memory");
-           return s;
+     do {
+        int of = p - s;
+        if (l2 > l1) {
+           if (char *NewBuffer = (char *)realloc(s, l + l2 - l1 + 1))
+              s = NewBuffer;
+           else {
+              esyslog("ERROR: out of memory");
+              return s;
+              }
            }
-        }
-     char *sof = s + of;
-     if (l2 != l1)
-        memmove(sof + l2, sof + l1, l - of - l1 + 1);
-     memcpy(sof, s2, l2);
+        char *sof = s + of;
+        if (l2 != l1)
+           memmove(sof + l2, sof + l1, l - of - l1 + 1);
+        memcpy(sof, s2, l2);
+        q = sof + l2;
+        } while (p = strstr(q, s1));
      }
   return s;
 }