Refactor|libdoomsday: Encapsulated the DED parser into its own class

doomsday/libdoomsday/include/doomsday/defs/dedfile.h

@@ -31,9 +31,20 @@ LIBDOOMSDAY_PUBLIC void Def_ReadProcessDED(ded_t *defs, char const* path);
  */
 LIBDOOMSDAY_PUBLIC int DED_ReadLump(ded_t* ded, lumpnum_t lumpNum);
 
+/**
+ * Reads definitions from the given buffer.
+ * The definition is being loaded from @a _sourcefile (DED or WAD).
+ *
+ * @param buffer        The data to be read, must be null-terminated.
+ * @param _sourceFile   Just FYI.
+ */
+int DED_ReadData(ded_t* ded, const char* buffer, const char* _sourceFile);
+
 /**
  * @return  @c true, if the file was successfully loaded.
  */
 int DED_Read(ded_t* ded, const char* path);
 
+void DED_SetError(char const *str);
+
 #endif // LIBDOOMSDAY_DEFS_DED_H

doomsday/libdoomsday/include/doomsday/defs/dedparser.h

@@ -21,17 +21,25 @@
 #ifndef LIBDOOMSDAY_DED_V1_PARSER_H
 #define LIBDOOMSDAY_DED_V1_PARSER_H
 
+#include <de/libcore.h>
 #include "../libdoomsday.h"
 #include "ded.h"
 
-LIBDOOMSDAY_PUBLIC int DED_ReadLump(ded_t* ded, lumpnum_t lumpNum);
-
 LIBDOOMSDAY_PUBLIC void DED_SetXGClassLinks(struct xgclass_s *links);
 
-int DED_ReadData(ded_t* ded, const char* buffer, const char* _sourceFile);
+/**
+ * Parser of DED v1 definitions.
+ * @ingroup data
+ */
+class LIBDOOMSDAY_PUBLIC DEDParser
+{
+public:
+    DEDParser(ded_t *ded);
 
-void DED_Include(ded_t *ded, const char* fileName, const char* parentDirectory);
+    int parse(char const *buffer, char const *sourceFile);
 
-void DED_SetError(char const *str);
+private:
+    DENG2_PRIVATE(d)
+};
 
 #endif // LIBDOOMSDAY_DED_V1_PARSER_H

doomsday/libdoomsday/src/defs/dedfile.cpp

@@ -26,7 +26,12 @@
 
 using namespace de;
 
-extern char dedReadError[512]; // in defs/parser.cpp
+char dedReadError[512];
+
+void DED_SetError(char const *str)
+{
+    strncpy(dedReadError, str, sizeof(dedReadError));
+}
 
 void Def_ReadProcessDED(ded_t *defs, char const* path)
 {
@@ -118,3 +123,8 @@ int DED_Read(ded_t* ded, const char* path)
     Str_Free(&transPath);
     return result;
 }
+
+int DED_ReadData(ded_t* ded, const char* buffer, const char* _sourceFile)
+{
+    return DEDParser(ded).parse(buffer, _sourceFile);
+}