constant, filesize, and filename extractors

3 files changed, 30 insertions, 2 deletions

diff --git a/bsie/utils/__init__.py b/bsie/utils/__init__.py
index 1137187..bd22236 100644
--- a/bsie/utils/__init__.py
+++ b/bsie/utils/__init__.py
@@ -9,12 +9,14 @@ import typing
 
 # inner-module imports
 from . import bsfs
+from . import namespaces as ns
 from . import node
 
 # exports
 __all__: typing.Sequence[str] = (
     'bsfs',
     'node',
+    'ns',
     )
 
 ## EOF ##
diff --git a/bsie/utils/bsfs.py b/bsie/utils/bsfs.py
index 33eb178..1ae657c 100644
--- a/bsie/utils/bsfs.py
+++ b/bsie/utils/bsfs.py
@@ -8,11 +8,12 @@ Author: Matthias Baumgartner, 2022
 import typing
 
 # bsfs imports
-from bsfs.utils import URI
-from bsfs.utils import typename
+from bsfs.namespace import Namespace
+from bsfs.utils import URI, typename
 
 # exports
 __all__: typing.Sequence[str] = (
+    'Namespace',
     'URI',
     'typename',
     )
diff --git a/bsie/utils/namespaces.py b/bsie/utils/namespaces.py
new file mode 100644
index 0000000..67ccc71
--- /dev/null
+++ b/bsie/utils/namespaces.py
@@ -0,0 +1,25 @@
+"""Default namespaces used throughout BSIE.
+
+Part of the bsie module.
+A copy of the license is provided with the project.
+Author: Matthias Baumgartner, 2022
+"""
+# imports
+import typing
+
+# bsie imports
+from . import bsfs as _bsfs
+
+# constants
+bse = _bsfs.Namespace('http://bsfs.ai/schema/Entity#')
+bsfs = _bsfs.Namespace('http://bsfs.ai/schema/')
+bsm = _bsfs.Namespace('http://bsfs.ai/schema/meta#')
+
+# export
+__all__: typing.Sequence[str] = (
+    'bse',
+    'bsfs',
+    'bsm',
+    )
+
+## EOF ##