65 lines
1.6 KiB
Python
Executable file
65 lines
1.6 KiB
Python
Executable file
"""This script handles conversion between snake and camel casing.
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"""
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import re
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_words_expr = re.compile(r"([a-zA-Z][^A-Z0-9]*|[0-9]+)")
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_lower_snake_case_expr = re.compile(r'^[a-z][a-z0-9_]*$')
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_upper_snake_case_expr = re.compile(r'^[A-Z][A-Z0-9_]*$')
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def _is_snake_case(str):
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"""Checks if the supplied string is already in snake case.
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"""
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match = _lower_snake_case_expr.match(str)
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if match:
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return True
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match = _upper_snake_case_expr.match(str)
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if match:
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return True
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return False
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def _split_snake_case(str):
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"""Splits up a string based on underscores, if it's in snake casing.
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"""
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if _is_snake_case(str):
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return [s.lower() for s in str.split("_")]
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return str
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def _split_camel_case(str):
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"""Splits up a string based on capitalised camel casing.
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"""
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return _words_expr.findall(str)
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def _split_cased_words(str):
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return _split_snake_case(str) if _is_snake_case(str) else _split_camel_case(str)
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def to_snake(str):
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str = "_".join([word.strip().lower() for word in _split_cased_words(str)])
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# Fix acronyms
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str = str.replace('i_d', 'id')
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str = str.replace('x_a_p', 'xap')
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str = str.replace('q_m_k', 'qmk')
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return str
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def to_upper_snake(str):
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return to_snake(str).upper()
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def to_camel(str):
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def _acronym(w):
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if w.strip().lower() == 'qmk':
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return 'QMK'
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elif w.strip().lower() == 'xap':
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return 'XAP'
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elif w.strip().lower() == 'id':
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return 'ID'
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return w.title()
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return "".join([_acronym(word) for word in _split_cased_words(str)])
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