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authorDafydd Harries <daf@rhydd.org>2013-03-18 01:57:11 -0400
committerDafydd Harries <daf@rhydd.org>2013-03-18 01:57:11 -0400
commit642bdf9672d1572354d27ddea5c5ba8b92f218ca (patch)
tree3292667a77e7f169b03b724a876405e8af127ffb
parent5dd5cf745eb14f60a60704232735ae60f6c9b40d (diff)
code for parsing license summaries
Plus test runner.
-rw-r--r--license.py70
-rwxr-xr-xtest.py14
2 files changed, 84 insertions, 0 deletions
diff --git a/license.py b/license.py
new file mode 100644
index 0000000..853cdc0
--- /dev/null
+++ b/license.py
@@ -0,0 +1,70 @@
+
+class License(object):
+ def __init__(self, name):
+ self.name = name
+
+ def __iter__(self):
+ yield self.name
+
+ def __str__(self, depth=0):
+ return self.name
+
+ def __repr__(self):
+ return '<%s %s>' % (self.__class__.__name__, self.name)
+
+class Licenses(object):
+ def __init__(self, xs):
+ self.xs = xs
+
+ def __iter__(self):
+ for x in self.xs:
+ for y in iter(x):
+ yield y
+
+ def __str__(self, depth=0):
+ j = ' %s ' % (self._join,)
+ ss = [x.__str__(depth=depth+1) for x in self.xs]
+ s = j.join(ss)
+
+ if depth > 0:
+ s = '(%s)' % s
+
+ return s
+
+ def __repr__(self):
+ return '<%s %r>' % (self.__class__.__name__, self.xs)
+
+class AllLicenses(Licenses):
+ _join = '&'
+
+class AnyLicense(Licenses):
+ _join = '|'
+
+def parse_licenses(s):
+ """
+ >>> print parse_licenses("X")
+ X
+ >>> print parse_licenses("X or Y or Z")
+ X | Y | Z
+ >>> print parse_licenses("X and Y and Z")
+ X & Y & Z
+ >>> parse_licenses("X or Y and Z")
+ <AnyLicense [<License X>, <AllLicenses [<License Y>, <License Z>]>]>
+ >>> print parse_licenses("X or Y and Z")
+ X | (Y & Z)
+ >>> print parse_licenses("X and Y or Z")
+ (X & Y) | Z
+ >>> print parse_licenses("X, and Y or Z")
+ X & (Y | Z)
+ """
+
+ splits = (
+ (', and ', AllLicenses),
+ (' or ', AnyLicense),
+ (' and ', AllLicenses))
+
+ for (split_str, cls) in splits:
+ if split_str in s:
+ return cls([parse_licenses(sub) for sub in s.split(split_str)])
+
+ return License(s)
diff --git a/test.py b/test.py
new file mode 100755
index 0000000..cbe79d6
--- /dev/null
+++ b/test.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+import os
+
+import nose.core
+
+if 'NOSE_TESTMATCH' not in os.environ:
+ os.environ['NOSE_TESTMATCH'] = '(?:^|[./])test(_|$)'
+
+if 'NOSE_WITH_DOCTEST' not in os.environ:
+ os.environ['NOSE_WITH_DOCTEST'] = '1'
+
+if __name__ == '__main__':
+ nose.core.run()