diff --git a/hecl/extern/libBoo b/hecl/extern/libBoo
index ce9d877cf..9c1735052 160000
--- a/hecl/extern/libBoo
+++ b/hecl/extern/libBoo
@@ -1 +1 @@
-Subproject commit ce9d877cfaeb63f8335acd36517b3026e6728d46
+Subproject commit 9c173505248875ee9bf7e943030a134401da6e05
diff --git a/hecl/include/HECL/HECL.hpp b/hecl/include/HECL/HECL.hpp
index e19af2df5..c02a458d2 100644
--- a/hecl/include/HECL/HECL.hpp
+++ b/hecl/include/HECL/HECL.hpp
@@ -560,170 +560,11 @@ private:
     std::vector<Entry> m_entries;
 
 public:
-    DirectoryEnumerator(const HECL::SystemString& path, Mode mode=Mode::DirsThenFilesSorted)
-    : DirectoryEnumerator(path.c_str(), mode) {}
-    DirectoryEnumerator(const HECL::SystemChar* path, Mode mode=Mode::DirsThenFilesSorted)
-    {
-        HECL::Sstat theStat;
-        if (HECL::Stat(path, &theStat) || !S_ISDIR(theStat.st_mode))
-            return;
-#if _WIN32
-        HECL::SystemString wc(path);
-        wc += _S("/*");
-        WIN32_FIND_DATAW d;
-        HANDLE dir = FindFirstFileW(wc.c_str(), &d);
-        if (dir == INVALID_HANDLE_VALUE)
-            return;
-        switch (mode)
-        {
-        case Mode::Native:
-            do
-            {
-                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                    continue;
-                HECL::SystemString fp(path);
-                fp += _S('/');
-                fp += d.cFileName;
-                HECL::Sstat st;
-                if (HECL::Stat(fp.c_str(), &st))
-                    continue;
-
-                size_t sz = 0;
-                bool isDir = false;
-                if (S_ISDIR(st.st_mode))
-                    isDir = true;
-                else if (S_ISREG(st.st_mode))
-                    sz = st.st_size;
-                else
-                    continue;
-
-                m_entries.push_back(std::move(Entry(std::move(fp), d.cFileName, sz, isDir)));
-            } while (FindNextFileW(dir, &d));
-            break;
-        case Mode::DirsThenFilesSorted:
-        case Mode::DirsSorted:
-        {
-            std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
-            do
-            {
-                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                    continue;
-                HECL::SystemString fp(path);
-                fp +=_S('/');
-                fp += d.cFileName;
-                HECL::Sstat st;
-                if (HECL::Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, 0, true)));
-            } while (FindNextFileW(dir, &d));
-            for (auto& e : sort)
-                m_entries.push_back(std::move(e.second));
-            if (mode == Mode::DirsSorted)
-                break;
-            FindClose(dir);
-            dir = FindFirstFileW(wc.c_str(), &d);
-        }
-        case Mode::FilesSorted:
-        {
-            if (mode == Mode::FilesSorted)
-                m_entries.clear();
-            std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
-            do
-            {
-                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                    continue;
-                HECL::SystemString fp(path);
-                fp += _S('/');
-                fp += d.cFileName;
-                HECL::Sstat st;
-                if (HECL::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, st.st_size, false)));
-            } while (FindNextFileW(dir, &d));
-            for (auto& e : sort)
-                m_entries.push_back(std::move(e.second));
-            break;
-        }
-        }
-        FindClose(dir);
-#else
-        DIR* dir = opendir(path);
-        if (!dir)
-            return;
-        const dirent* d;
-        switch (mode)
-        {
-        case Mode::Native:
-            while ((d = readdir(dir)))
-            {
-                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                    continue;
-                HECL::SystemString fp(path);
-                fp += '/';
-                fp += d->d_name;
-                HECL::Sstat st;
-                if (HECL::Stat(fp.c_str(), &st))
-                    continue;
-
-                size_t sz = 0;
-                bool isDir = false;
-                if (S_ISDIR(st.st_mode))
-                    isDir = true;
-                else if (S_ISREG(st.st_mode))
-                    sz = st.st_size;
-                else
-                    continue;
-
-                m_entries.push_back(std::move(Entry(std::move(fp), d->d_name, sz, isDir)));
-            }
-            break;
-        case Mode::DirsThenFilesSorted:
-        case Mode::DirsSorted:
-        {
-            std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
-            while ((d = readdir(dir)))
-            {
-                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                    continue;
-                HECL::SystemString fp(path);
-                fp += '/';
-                fp += d->d_name;
-                HECL::Sstat st;
-                if (HECL::Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, 0, true)));
-            }
-            for (auto& e : sort)
-                m_entries.push_back(std::move(e.second));
-            if (mode == Mode::DirsSorted)
-                break;
-            rewinddir(dir);
-        }
-        case Mode::FilesSorted:
-        {
-            if (mode == Mode::FilesSorted)
-                m_entries.clear();
-            std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
-            while ((d = readdir(dir)))
-            {
-                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                    continue;
-                HECL::SystemString fp(path);
-                fp += '/';
-                fp += d->d_name;
-                HECL::Sstat st;
-                if (HECL::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, st.st_size, false)));
-            }
-            for (auto& e : sort)
-                m_entries.push_back(std::move(e.second));
-            break;
-        }
-        }
-        closedir(dir);
-#endif
-    }
+    DirectoryEnumerator(const HECL::SystemString& path, Mode mode=Mode::DirsThenFilesSorted,
+                        bool sizeSort=false, bool reverse=false)
+    : DirectoryEnumerator(path.c_str(), mode, sizeSort, reverse) {}
+    DirectoryEnumerator(const HECL::SystemChar* path, Mode mode=Mode::DirsThenFilesSorted,
+                        bool sizeSort=false, bool reverse=false);
 
     operator bool() const {return m_entries.size() != 0;}
     size_t size() const {return m_entries.size();}
diff --git a/hecl/lib/HECL.cpp b/hecl/lib/HECL.cpp
index cf74ceedc..d17c8ad92 100644
--- a/hecl/lib/HECL.cpp
+++ b/hecl/lib/HECL.cpp
@@ -117,4 +117,250 @@ bool IsPathYAML(const HECL::ProjectPath& path)
     return false;
 }
 
+HECL::DirectoryEnumerator::DirectoryEnumerator(const HECL::SystemChar* path, Mode mode,
+                                               bool sizeSort, bool reverse)
+{
+    HECL::Sstat theStat;
+    if (HECL::Stat(path, &theStat) || !S_ISDIR(theStat.st_mode))
+        return;
+
+#if _WIN32
+    HECL::SystemString wc(path);
+    wc += _S("/*");
+    WIN32_FIND_DATAW d;
+    HANDLE dir = FindFirstFileW(wc.c_str(), &d);
+    if (dir == INVALID_HANDLE_VALUE)
+        return;
+    switch (mode)
+    {
+    case Mode::Native:
+        do
+        {
+            if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
+                continue;
+            HECL::SystemString fp(path);
+            fp += _S('/');
+            fp += d.cFileName;
+            HECL::Sstat st;
+            if (HECL::Stat(fp.c_str(), &st))
+                continue;
+
+            size_t sz = 0;
+            bool isDir = false;
+            if (S_ISDIR(st.st_mode))
+                isDir = true;
+            else if (S_ISREG(st.st_mode))
+                sz = st.st_size;
+            else
+                continue;
+
+            m_entries.push_back(std::move(Entry(std::move(fp), d.cFileName, sz, isDir)));
+        } while (FindNextFileW(dir, &d));
+        break;
+    case Mode::DirsThenFilesSorted:
+    case Mode::DirsSorted:
+    {
+        std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
+        do
+        {
+            if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
+                continue;
+            HECL::SystemString fp(path);
+            fp +=_S('/');
+            fp += d.cFileName;
+            HECL::Sstat st;
+            if (HECL::Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
+                continue;
+            sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, 0, true)));
+        } while (FindNextFileW(dir, &d));
+
+        if (reverse)
+            for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
+                m_entries.push_back(std::move(it->second));
+        else
+            for (auto& e : sort)
+                m_entries.push_back(std::move(e.second));
+
+        if (mode == Mode::DirsSorted)
+            break;
+        FindClose(dir);
+        dir = FindFirstFileW(wc.c_str(), &d);
+    }
+    case Mode::FilesSorted:
+    {
+        if (mode == Mode::FilesSorted)
+            m_entries.clear();
+
+        if (sizeSort)
+        {
+            std::map<size_t, Entry> sort;
+            do
+            {
+                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
+                    continue;
+                HECL::SystemString fp(path);
+                fp += _S('/');
+                fp += d.cFileName;
+                HECL::Sstat st;
+                if (HECL::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+                    continue;
+                sort.emplace(std::make_pair(st.st_size, Entry(std::move(fp), d.cFileName, st.st_size, false)));
+            } while (FindNextFileW(dir, &d));
+
+            if (reverse)
+                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
+                    m_entries.push_back(std::move(it->second));
+            else
+                for (auto& e : sort)
+                    m_entries.push_back(std::move(e.second));
+        }
+        else
+        {
+            std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
+            do
+            {
+                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
+                    continue;
+                HECL::SystemString fp(path);
+                fp += _S('/');
+                fp += d.cFileName;
+                HECL::Sstat st;
+                if (HECL::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+                    continue;
+                sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, st.st_size, false)));
+            } while (FindNextFileW(dir, &d));
+
+            if (reverse)
+                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
+                    m_entries.push_back(std::move(it->second));
+            else
+                for (auto& e : sort)
+                    m_entries.push_back(std::move(e.second));
+        }
+
+        break;
+    }
+    }
+    FindClose(dir);
+
+#else
+
+    DIR* dir = opendir(path);
+    if (!dir)
+        return;
+    const dirent* d;
+    switch (mode)
+    {
+    case Mode::Native:
+        while ((d = readdir(dir)))
+        {
+            if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+                continue;
+            HECL::SystemString fp(path);
+            fp += '/';
+            fp += d->d_name;
+            HECL::Sstat st;
+            if (HECL::Stat(fp.c_str(), &st))
+                continue;
+
+            size_t sz = 0;
+            bool isDir = false;
+            if (S_ISDIR(st.st_mode))
+                isDir = true;
+            else if (S_ISREG(st.st_mode))
+                sz = st.st_size;
+            else
+                continue;
+
+            m_entries.push_back(std::move(Entry(std::move(fp), d->d_name, sz, isDir)));
+        }
+        break;
+    case Mode::DirsThenFilesSorted:
+    case Mode::DirsSorted:
+    {
+        std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
+        while ((d = readdir(dir)))
+        {
+            if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+                continue;
+            HECL::SystemString fp(path);
+            fp += '/';
+            fp += d->d_name;
+            HECL::Sstat st;
+            if (HECL::Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
+                continue;
+            sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, 0, true)));
+        }
+
+        if (reverse)
+            for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
+                m_entries.push_back(std::move(it->second));
+        else
+            for (auto& e : sort)
+                m_entries.push_back(std::move(e.second));
+
+        if (mode == Mode::DirsSorted)
+            break;
+        rewinddir(dir);
+    }
+    case Mode::FilesSorted:
+    {
+        if (mode == Mode::FilesSorted)
+            m_entries.clear();
+
+        if (sizeSort)
+        {
+            std::map<size_t, Entry> sort;
+            while ((d = readdir(dir)))
+            {
+                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+                    continue;
+                HECL::SystemString fp(path);
+                fp += '/';
+                fp += d->d_name;
+                HECL::Sstat st;
+                if (HECL::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+                    continue;
+                sort.emplace(std::make_pair(st.st_size, Entry(std::move(fp), d->d_name, st.st_size, false)));
+            }
+
+            if (reverse)
+                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
+                    m_entries.push_back(std::move(it->second));
+            else
+                for (auto& e : sort)
+                    m_entries.push_back(std::move(e.second));
+        }
+        else
+        {
+            std::map<HECL::SystemString, Entry, CaseInsensitiveCompare> sort;
+            while ((d = readdir(dir)))
+            {
+                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+                    continue;
+                HECL::SystemString fp(path);
+                fp += '/';
+                fp += d->d_name;
+                HECL::Sstat st;
+                if (HECL::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+                    continue;
+                sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, st.st_size, false)));
+            }
+
+            if (reverse)
+                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
+                    m_entries.push_back(std::move(it->second));
+            else
+                for (auto& e : sort)
+                    m_entries.push_back(std::move(e.second));
+        }
+
+        break;
+    }
+    }
+    closedir(dir);
+
+#endif
+}
+
 }