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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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72 lines
2.2 KiB
72 lines
2.2 KiB
# Copyright 2021 The gRPC Authors |
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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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# Follows convention set in objectivec_helpers.cc in the protobuf ObjC compiler. |
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""" |
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Contains generic helper utilities. |
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""" |
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_upper_segments_list = ["url", "http", "https"] |
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def strip_extension(str): |
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return str.rpartition(".")[0] |
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def capitalize(word): |
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if word in _upper_segments_list: |
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return word.upper() |
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else: |
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return word.capitalize() |
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def lower_underscore_to_upper_camel(str): |
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"""Converts from lower underscore case to upper camel case. |
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Args: |
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str: The snake case string to convert. |
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Returns: |
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The title case version of str. |
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""" |
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str = strip_extension(str) |
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camel_case_str = "" |
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word = "" |
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for c in str.elems(): # NB: assumes ASCII! |
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if c.isalpha(): |
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word += c.lower() |
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else: |
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# Last word is finished. |
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if len(word): |
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camel_case_str += capitalize(word) |
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word = "" |
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if c.isdigit(): |
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camel_case_str += c |
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# Otherwise, drop the character. See UnderscoresToCamelCase in: |
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# third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc |
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if len(word): |
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camel_case_str += capitalize(word) |
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return camel_case_str |
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def file_to_upper_camel(src): |
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elements = src.rpartition("/") |
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upper_camel = lower_underscore_to_upper_camel(elements[-1]) |
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return "".join(list(elements[:-1]) + [upper_camel]) |
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def file_with_extension(src, ext): |
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elements = src.rpartition("/") |
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return "".join(list(elements[:-1]) + [elements[-1], "." + ext]) |
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def to_upper_camel_with_extension(src, ext): |
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src = file_to_upper_camel(src) |
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return file_with_extension(src, ext)
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