add skeleton for expat suport

CMakeLists.txt

@@ -50,6 +50,7 @@ else()
 find_package (SQLite3 REQUIRED QUIET)
 endif()
 
+find_package(EXPAT)
 find_package (LibXml2 REQUIRED)
 find_package (ToLua REQUIRED)
 if (TOLUA_FOUND)

src/CMakeLists.txt

@@ -139,6 +139,11 @@ set (ERESSEA_SRC
   ${UTIL_SRC}
 )
 
+IF(EXPAT_FOUND)
+set (ERESSEA_SRC ${ERESSEA_SRC} exparse.c)
+ENDIF(EXPAT_FOUND)
+
+
 set(SERVER_SRC
   main.c
   console.c
@@ -309,6 +314,14 @@ target_link_libraries(eressea ${CURSES_LIBRARIES})
 add_definitions(-DUSE_CURSES)
 endif(CURSES_FOUND)
 
+if (EXPAT_FOUND)
+include_directories (${EXPAT_INCLUDE_DIRS})
+target_link_libraries(eressea ${EXPAT_LIBRARIES})
+target_link_libraries(convert ${EXPAT_LIBRARIES})
+target_link_libraries(test_eressea ${EXPAT_LIBRARIES})
+add_definitions(-DUSE_EXPAT)
+endif (EXPAT_FOUND)
+
 if (LIBXML2_FOUND)
 include_directories (${LIBXML2_INCLUDE_DIR})
 target_link_libraries(eressea ${LIBXML2_LIBRARIES})

src/exparse.c

@@ -0,0 +1,7 @@
+#include "exparse.h"
+
+#include <expat.h>
+
+int exparse_readfile(const char * filename) {
+    return 1;
+}

src/exparse.h

@@ -0,0 +1,3 @@
+#pragma once
+
+int exparse_readfile(const char * filename);

src/jsonconf.c

@@ -46,6 +46,9 @@ without prior permission by the authors of Eressea.
 #include "move.h"
 #include "prefix.h"
 #include "skill.h"
+#ifdef USE_EXPAT
+#include "exparse.h"
+#endif
 
 /* external libraries */
 #include <cJSON.h>
@@ -969,8 +972,16 @@ static int include_json(const char *uri) {
 static int include_xml(const char *uri) {
     char name[PATH_MAX];
     const char *filename = uri_to_file(uri, name, sizeof(name));
-    int err = read_xml(filename);
-    if (err < 0) {
+    int err;
+#ifdef USE_EXPAT
+    err = exparse_readfile(filename);
+    if (err != 0) {
+        err = read_xml(filename);
+    }
+#else
+    err = read_xml(filename);
+#endif
+    if (err != 0) {
         log_error("could not parse XML from %s", uri);
     }
     return err;