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Improve case convertion performance #766

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Merged
jph00 merged 1 commit into from
Feb 2, 2026
+6 −6
Merged

Improve case convertion performance #766

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6 changes: 3 additions & 3 deletions fastcore/basics.py
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Original file line number Diff line number Diff line change
Expand Up @@ -473,13 +473,13 @@ def properties(cls, *ps):
# %% ../nbs/01_basics.ipynb #dd737e81
def camel2words(s, space=' '):
"Convert CamelCase to 'spaced words'"
return re.sub(_c2w_re, rf'{space}\1', s)
return _c2w_re.sub(rf'{space}\1', s)

# %% ../nbs/01_basics.ipynb #a588a317
def camel2snake(name):
"Convert CamelCase to snake_case"
s1 = re.sub(_camel_re1, r'\1_\2', name)
return re.sub(_camel_re2, r'\1_\2', s1).lower()
s1 = _camel_re1.sub(r'\1_\2', name)
return _camel_re2.sub(r'\1_\2', s1).lower()

# %% ../nbs/01_basics.ipynb #bbd632b4
def snake2camel(s):
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6 changes: 3 additions & 3 deletions nbs/01_basics.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -2776,7 +2776,7 @@
"#| export\n",
"def camel2words(s, space=' '):\n",
" \"Convert CamelCase to 'spaced words'\"\n",
" return re.sub(_c2w_re, rf'{space}\\1', s)"
" return _c2w_re.sub(rf'{space}\\1', s)"
]
},
{
Expand All @@ -2799,8 +2799,8 @@
"#| export\n",
"def camel2snake(name):\n",
" \"Convert CamelCase to snake_case\"\n",
" s1 = re.sub(_camel_re1, r'\\1_\\2', name)\n",
" return re.sub(_camel_re2, r'\\1_\\2', s1).lower()"
" s1 = _camel_re1.sub(r'\\1_\\2', name)\n",
" return _camel_re2.sub(r'\\1_\\2', s1).lower()"
]
},
{
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