1 files changed, 66 insertions, 0 deletions
diff --git a/libxcb/xcb-proto/src/import.py b/libxcb/xcb-proto/src/import.py
new file mode 100644
index 000000000..eb58f5561
--- /dev/null
+++ b/libxcb/xcb-proto/src/import.py
@@ -0,0 +1,66 @@
+#!/usr/bin/python
+
+from xml.sax.saxutils import XMLFilterBase, XMLGenerator
+from xml.sax import make_parser
+import sys, os
+
+path = [os.path.curdir, 'extensions']
+def find_file_on_path(name):
+	for d in path:
+		test = os.path.join(d, name)
+		if os.path.isfile(test):
+			return test
+	raise OSError(errno.ENOENT, os.strerror(errno.ENOENT), name)
+
+seen = {}
+
+class ProcessImports(XMLFilterBase):
+	def setContentHandler(self, handler):
+		self.handler = handler
+		XMLFilterBase.setContentHandler(self, handler)
+
+	def ensure(self, name):
+		if not seen.has_key(name):
+			child = ProcessImports(make_parser())
+			child.setContentHandler(self.handler)
+			child.parse(find_file_on_path(name + '.xml'))
+
+	def startDocument(self):
+		pass
+	def endDocument(self):
+		pass
+
+	inimport = None
+
+	def startElement(self, name, attrs):
+		assert self.inimport is None
+		if name == 'import':
+			self.inimport = ""
+			return
+		XMLFilterBase.startElement(self, name, attrs)
+		if name == 'xcb':
+			seen[attrs['header']] = True
+			self.ensure('xproto')
+
+	def characters(self, content):
+		if self.inimport is not None:
+			self.inimport += content
+		else:
+			XMLFilterBase.characters(self, content)
+
+	def endElement(self, name):
+		if name == 'import':
+			self.ensure(self.inimport)
+			self.inimport = None
+			return
+		XMLFilterBase.endElement(self, name)
+
+out = XMLGenerator()
+importer = ProcessImports(make_parser())
+importer.setContentHandler(out)
+out.startDocument()
+if len(sys.argv) > 1:
+	importer.parse(sys.argv[1])
+else:
+	importer.parse(sys.stdin)
+out.endDocument()