30 lines
919 B
Python
30 lines
919 B
Python
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"""
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Taken from
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https://github.com/mahenzon/ri-sdk-python-wrapper/blob/master/ri_sdk_codegen/utils/case_converter.py
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"""
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def camel_case_to_snake_case(input_str: str) -> str:
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"""
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>>> camel_case_to_snake_case("SomeSDK")
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'some_sdk'
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>>> camel_case_to_snake_case("RServoDrive")
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'r_servo_drive'
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>>> camel_case_to_snake_case("SDKDemo")
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'sdk_demo'
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"""
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chars = []
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for c_idx, char in enumerate(input_str):
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if c_idx and char.isupper():
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nxt_idx = c_idx + 1
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# idea of the flag is to separate abbreviations
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# as new words, show them in lower case
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flag = nxt_idx >= len(input_str) or input_str[nxt_idx].isupper()
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prev_char = input_str[c_idx - 1]
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if prev_char.isupper() and flag:
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pass
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else:
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chars.append("_")
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chars.append(char.lower())
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return "".join(chars)
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