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