1 files changed, 66 insertions, 0 deletions
diff --git a/grc/python/extract_docs.py b/grc/python/extract_docs.py
new file mode 100644
index 000000000..33c404362
--- /dev/null
+++ b/grc/python/extract_docs.py
@@ -0,0 +1,66 @@
+"""
+Copyright 2008-2011 Free Software Foundation, Inc.
+This file is part of GNU Radio
+
+GNU Radio Companion is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+GNU Radio Companion is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+"""
+
+import re
+
+def _extract(key):
+	"""
+	Extract the documentation from the python __doc__ strings.
+	If multiple modules match, combine the docs.
+	@param key the block key
+	@return a string with documentation
+	"""
+	#extract matches
+	try:
+		module_name, constructor_name = key.split('_', 1)
+		module = __import__('gnuradio.'+module_name)
+		module = getattr(module, module_name)
+        except ImportError:
+                try:
+                        module_name, constructor_name = key.split('_', 1)
+                        module = __import__(module_name)
+                except: return ''
+	except:
+                return ''
+	pattern = constructor_name.replace('_', '_*').replace('x', '\w')
+	pattern_matcher = re.compile('^%s\w*$'%pattern)
+	matches = filter(lambda x: pattern_matcher.match(x), dir(module))
+	#combine all matches
+	doc_strs = list()
+	for match in matches:
+		try:
+			title = '   ---   ' + match + '   ---   '
+			doc_strs.append('\n\n'.join([title, getattr(module, match).__doc__]).strip())
+		except: pass
+	return '\n\n'.join(doc_strs)
+
+_docs_cache = dict()
+def extract(key):
+	"""
+	Call the private extract and cache the result.
+	@param key the block key
+	@return a string with documentation
+	"""
+	if not _docs_cache.has_key(key):
+		_docs_cache[key] = _extract(key)
+	return _docs_cache[key]
+
+if __name__ == '__main__':
+	import sys
+	print extract(sys.argv[1])