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bpo-29869: Allow underscores in numeric literals in lib2to3. #1119

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Merged
Mariatta merged 3 commits into from
Apr 13, 2017
Merged

bpo-29869: Allow underscores in numeric literals in lib2to3. #1119

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3164b1f
Allow underscores in numeric literals in lib2to3.
nevsan Mar 21, 2017
e2e3747
Stricter literal parsing for Python 3.6 in lib2to3.pgen2.tokenize.
nevsan Mar 22, 2017
fa34cf3
Add test case for underscores in literals in Python 3.
nevsan Mar 23, 2017
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Allow underscores in numeric literals in lib2to3.
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@nevsan
nevsan committed Apr 13, 2017
commit 3164b1f9fdbe6098349e289c2e59475468fc159a
8 changes: 4 additions & 4 deletions Lib/lib2to3/pgen2/tokenize.py
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Expand Up @@ -54,10 +54,10 @@ def maybe(*choices): return group(*choices) + '?'
Ignore = Whitespace + any(r'\\\r?\n' + Whitespace) + maybe(Comment)
Name = r'[a-zA-Z_]\w*'

Binnumber = r'0[bB][01]*'
Hexnumber = r'0[xX][\da-fA-F]*[lL]?'
Octnumber = r'0[oO]?[0-7]*[lL]?'
Decnumber = r'[1-9]\d*[lL]?'
Binnumber = r'0[bB][01_]*'
Hexnumber = r'0[xX][\da-fA-F_]*[lL]?'
Octnumber = r'0[oO]?[0-7_]*[lL]?'
Decnumber = r'[1-9][\d_]*[lL]?'
Intnumber = group(Binnumber, Hexnumber, Octnumber, Decnumber)
Exponent = r'[eE][-+]?\d+'
Pointfloat = group(r'\d+\.\d*', r'\.\d+') + maybe(Exponent)
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