#719: Added new ExifTags::tagList() function which returns the taglist for an Exif group.

src/tags.cpp

@@ -1917,6 +1917,13 @@ namespace Exiv2 {
                                     N_("Unknown tag"),
                                     ifdIdNotSet, sectionIdNotSet, asciiString, printValue);
 
+    const TagInfo* ExifTags::tagList(const std::string& group)
+    {
+        const IfdInfo* ii = find(ifdInfo_, IfdInfo::Item(group));
+        if (ii == 0 || ii->tagList_ == 0) return 0;
+        return ii->tagList_();
+    } // ExifTags::tagList
+
     const TagInfo* ExifTags::tagList(IfdId ifdId)
     {
         const IfdInfo* ii = find(ifdInfo_, ifdId);

src/tags.hpp

@@ -323,6 +323,8 @@ namespace Exiv2 {
                                       IfdId ifdId,
                                       const Value& value,
                                       const ExifData* pExifData =0);
+        //! Return read-only list of built-in \em group tags.
+        static const TagInfo* tagList(const std::string& group);
         //! Return read-only list of built-in IFD0/1 tags
         static const TagInfo* ifdTagList();
         //! Return read-only list of built-in Exif IFD tags