1 files changed, 43 insertions, 0 deletions
diff --git a/lib/spack/external/macholib/framework.py b/lib/spack/external/macholib/framework.py
new file mode 100644
index 0000000000..8f8632c209
--- /dev/null
+++ b/lib/spack/external/macholib/framework.py
@@ -0,0 +1,43 @@
+"""
+Generic framework path manipulation
+"""
+
+import re
+
+__all__ = ['framework_info']
+
+_STRICT_FRAMEWORK_RE = re.compile(r"""(?x)
+(?P<location>^.*)(?:^|/)
+(?P<name>
+    (?P<shortname>[-_A-Za-z0-9]+).framework/
+    (?:Versions/(?P<version>[^/]+)/)?
+    (?P=shortname)
+    (?:_(?P<suffix>[^_]+))?
+)$
+""")
+
+
+def framework_info(filename):
+    """
+    A framework name can take one of the following four forms:
+        Location/Name.framework/Versions/SomeVersion/Name_Suffix
+        Location/Name.framework/Versions/SomeVersion/Name
+        Location/Name.framework/Name_Suffix
+        Location/Name.framework/Name
+
+    returns None if not found, or a mapping equivalent to:
+        dict(
+            location='Location',
+            name='Name.framework/Versions/SomeVersion/Name_Suffix',
+            shortname='Name',
+            version='SomeVersion',
+            suffix='Suffix',
+        )
+
+    Note that SomeVersion and Suffix are optional and may be None
+    if not present
+    """
+    is_framework = _STRICT_FRAMEWORK_RE.match(filename)
+    if not is_framework:
+        return None
+    return is_framework.groupdict()