25 lines
589 B
Markdown
25 lines
589 B
Markdown
---
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title: snake
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tags: string,regexp,intermediate
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---
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Converts a string to snake case.
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Break the string into words and combine them adding `_` as a separator, using a regexp.
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```py
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import re
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def snake(s):
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return '_'.join(re.sub('([A-Z][a-z]+)', r' \1',
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re.sub('([A-Z]+)', r' \1',
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s.replace('-', ' '))).split()).lower()
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```
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```py
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snake('camelCase') # 'camel_case'
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snake('some text') # 'some_text'
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snake('some-mixed_string With spaces_underscores-and-hyphens') # 'some_mixed_string_with_spaces_underscores_and_hyphens'
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snake('AllThe-small Things') # "all_the_smal_things"
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```
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