1 files changed, 23 insertions, 0 deletions
diff --git a/portal-gui/rpkigui/myrpki/asnset.py b/portal-gui/rpkigui/myrpki/asnset.py
new file mode 100644
index 00000000..2fa52450
--- /dev/null
+++ b/portal-gui/rpkigui/myrpki/asnset.py
@@ -0,0 +1,23 @@
+class asnset(object):
+    """a set-like objet for containing sets of ASN values."""
+    v = set()
+
+    def __init__(self, init=None):
+        """
+        May be initialized from a comma separated list of positive integers.
+        """
+        if init:
+            self.v = set(int(x) for x in init.split(',') if x.strip() != '')
+            if any([x for x in self.v if x < 0]):
+                raise ValueError, "can't contain negative values."
+
+    def __str__(self):
+        return ','.join(str(x) for x in sorted(self.v))
+
+    def __iter__(self):
+        return iter(self.v)
+
+    def add(self, n):
+        assert isinstance(n, int)
+        assert n > 0
+        self.v.add(n)