+#include <stdlib.h> // For getenv
+
+namespace gdcm
+{
+
+//-----------------------------------------------------------------------------
+// Constructor / Destructor
+/**
+ * \brief The Dictionary Set obtained with this constructor simply
+ * contains the Default Public dictionary.
+ */
+DictSet::DictSet()
+{
+ DictPath = BuildDictPath();
+ std::string pubDictFile(DictPath);
+ pubDictFile += PUB_DICT_FILENAME;
+ Dicts[PUB_DICT_NAME] = new Dict(pubDictFile);
+}
+
+/**
+ * \brief Destructor
+ */
+DictSet::~DictSet()
+{
+ // Remove dictionaries
+ for (DictSetHT::iterator tag = Dicts.begin(); tag != Dicts.end(); ++tag)
+ {
+ Dict *entryToDelete = tag->second;
+ if ( entryToDelete )
+ {
+ delete entryToDelete;
+ }
+ tag->second = NULL;
+ }
+ Dicts.clear();
+
+ // Remove virtual dictionary entries
+ VirtualEntry.clear();
+}
+
+//-----------------------------------------------------------------------------
+// Print
+/**
+ * \brief Print, in an informal fashion, the list of all the dictionaries
+ * contained is this DictSet, along with their respective content.
+ * @param os Output stream used for printing.
+ */
+void DictSet::Print(std::ostream &os, std::string const & )
+{
+ for (DictSetHT::iterator dict = Dicts.begin(); dict != Dicts.end(); ++dict)
+ {
+ os << "Printing dictionary " << dict->first << std::endl;
+ dict->second->Print(os);
+ }
+}
+
+//-----------------------------------------------------------------------------
+// Public
+/**
+ * \brief Consider all the entries of the public dicom dictionary.
+ * Build all list of all the tag names of all those entries.
+ * \sa DictSet::GetPubDictTagNamesByCategory
+ * @return A list of all entries of the public dicom dictionary.
+ */
+
+// Probabely useless!
+
+//EntryNamesList *DictSet::GetPubDictEntryNames()
+//{
+// return GetDefaultPubDict()->GetDictEntryNames();
+//}
+
+/**
+ * \brief
+ * - Consider all the entries of the public dicom dictionary.
+ * - Build an hashtable whose keys are the names of the groups
+ * (fourth field in each line of dictionary) and whose corresponding
+ * values are lists of all the dictionary entries among that
+ * group. Note that apparently the Dicom standard doesn't explicitely
+ * define a name (as a string) for each group.
+ * NO ! Dicom Standard explicitely doesn't define
+ * any name, for any group !
+ * - A typical usage of this method would be to enable a dynamic
+ * configuration of a Dicom file browser: the admin/user can
+ * select in the interface which Dicom tags should be displayed.
+ * \warning
+ * - Dicom *doesn't* define any name for any 'categorie'
+ * (the dictionary fourth field was formerly NIH defined
+ * -and no longer he is-
+ * and will be removed when Dicom provides us a text file
+ * with the 'official' Dictionary, that would be more friendly
+ * than asking us to perform a line by line check of the dictionary
+ * at the beginning of each year to -try to- guess the changes)
+ * - Therefore : please NEVER use that fourth field :-(
+ * *
+ * @return An hashtable: whose keys are the names of the groups and whose
+ * corresponding values are lists of all the dictionary entries
+ * among that group.
+ */
+