upload android base code part3

android/art/tools/checker/file_format/common.py

@@ -0,0 +1,51 @@
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+def SplitStream(stream, fnProcessLine, fnLineOutsideChunk):
+  """ Reads the given input stream and splits it into chunks based on
+      information extracted from individual lines.
+
+  Arguments:
+   - fnProcessLine: Called on each line with the text and line number. Must
+     return a triplet, composed of the name of the chunk started on this line,
+     the data extracted, and the name of the architecture this test applies to
+     (or None to indicate that all architectures should run this test).
+   - fnLineOutsideChunk: Called on attempt to attach data prior to creating
+     a chunk.
+  """
+  lineNo = 0
+  allChunks = []
+  currentChunk = None
+
+  for line in stream:
+    lineNo += 1
+    line = line.strip()
+    if not line:
+      continue
+
+    # Let the child class process the line and return information about it.
+    # The _processLine method can modify the content of the line (or delete it
+    # entirely) and specify whether it starts a new group.
+    processedLine, newChunkName, testArch = fnProcessLine(line, lineNo)
+    # Currently, only a full chunk can be specified as architecture-specific.
+    assert testArch is None or newChunkName is not None
+    if newChunkName is not None:
+      currentChunk = (newChunkName, [], lineNo, testArch)
+      allChunks.append(currentChunk)
+    if processedLine is not None:
+      if currentChunk is not None:
+        currentChunk[1].append(processedLine)
+      else:
+        fnLineOutsideChunk(line, lineNo)
+  return allChunks