From 6d363488a1cc874e9dbd3f3841439b4e4df2c826 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 7 May 2023 00:16:06 +0200
Subject: [PATCH] allow NULL

---
 doc/doxygen/taler.doxy          | 56 +++------------------------------
 src/templating/templating_api.c |  5 +--
 2 files changed, 8 insertions(+), 53 deletions(-)

diff --git a/doc/doxygen/taler.doxy b/doc/doxygen/taler.doxy
index 6eeb514a5..b1c8637a2 100644
--- a/doc/doxygen/taler.doxy
+++ b/doc/doxygen/taler.doxy
@@ -5,7 +5,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = "GNU Taler: Exchange"
-PROJECT_NUMBER         = 0.8.3
+PROJECT_NUMBER         = 0.9.3
 PROJECT_LOGO           = logo.svg
 OUTPUT_DIRECTORY       = .
 CREATE_SUBDIRS         = YES
@@ -97,59 +97,11 @@ WARN_LOGFILE           =
 INPUT                  = ../../src
 INPUT_ENCODING         = UTF-8
 FILE_PATTERNS          = *.c \
-                         *.cc \
-                         *.cxx \
-                         *.cpp \
-                         *.c++ \
-                         *.d \
-                         *.java \
-                         *.ii \
-                         *.ixx \
-                         *.ipp \
-                         *.i++ \
-                         *.inl \
-                         *.h \
-                         *.hh \
-                         *.hxx \
-                         *.hpp \
-                         *.h++ \
-                         *.idl \
-                         *.odl \
-                         *.cs \
-                         *.php \
-                         *.php3 \
-                         *.inc \
-                         *.m \
-                         *.mm \
-                         *.dox \
-                         *.py \
-                         *.f90 \
-                         *.f \
-                         *.vhd \
-                         *.vhdl \
-                         *.C \
-                         *.CC \
-                         *.C++ \
-                         *.II \
-                         *.I++ \
-                         *.H \
-                         *.HH \
-                         *.H++ \
-                         *.CS \
-                         *.PHP \
-                         *.PHP3 \
-                         *.M \
-                         *.MM \
-                         *.PY \
-                         *.F90 \
-                         *.F \
-                         *.VHD \
-                         *.VHDL
+                         *.h
 RECURSIVE              = YES
 EXCLUDE                =
 EXCLUDE_SYMLINKS       = NO
 EXCLUDE_PATTERNS       = */test_* \
-                         */.svn/* \
                          */.git/* \
                          */perf_* .* \
                          .* \
@@ -191,7 +143,9 @@ HTML_STYLESHEET        =
 GENERATE_HTMLHELP      = NO
 GENERATE_DOCSET        = NO
 DOCSET_FEEDNAME        = "GNU Taler Source Documentation"
-DOCSET_BUNDLE_ID       = net.taler
+DOCSET_BUNDLE_ID       = net.taler.exchange
+DOCSET_PUBLISHER_ID    = net.taler
+DOCSET_PUBLISHER_NAME  = Taler Systems SA
 HTML_DYNAMIC_SECTIONS  = NO
 CHM_FILE               =
 HHC_LOCATION           =
diff --git a/src/templating/templating_api.c b/src/templating/templating_api.c
index dba042e5d..4bd7c5fe7 100644
--- a/src/templating/templating_api.c
+++ b/src/templating/templating_api.c
@@ -443,8 +443,9 @@ TALER_TEMPLATING_reply_error (struct MHD_Connection *connection,
                              ec),
     GNUNET_JSON_pack_string ("hint",
                              TALER_ErrorCode_get_hint (ec)),
-    GNUNET_JSON_pack_string ("detail",
-                             detail)
+    GNUNET_JSON_pack_allow_null (
+      GNUNET_JSON_pack_string ("detail",
+                               detail))
     );
   ret = TALER_TEMPLATING_reply (connection,
                                 http_status,