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PR: Add support for numeric literals with underscores highlighting in Python 3.6 #7505

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merged 3 commits into from
Jul 19, 2018
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PR: Add support for numeric literals with underscores highlighting in Python 3.6 #7505

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8fcdf93
Add support for numeric literals with underscores highlighting in Pyt…
dalthviz Jul 19, 2018
fe3f59b
Fix code style issue.
dalthviz Jul 19, 2018
025c12f
Fix Python version check.
dalthviz Jul 19, 2018
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1 change: 1 addition & 0 deletions spyder/py3compat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@

PY2 = sys.version[0] == '2'
PY3 = sys.version[0] == '3'
PY36_OR_MORE = sys.version_info[0] >= 3 and sys.version_info[1] >= 6

#==============================================================================
# Data types
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33 changes: 26 additions & 7 deletions spyder/utils/syntaxhighlighters.py
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Expand Up @@ -25,7 +25,8 @@
from spyder import dependencies
from spyder.config.base import _
from spyder.config.main import CONF
from spyder.py3compat import builtins, is_text_string, to_text_string
from spyder.py3compat import (builtins, is_text_string, to_text_string,
PY36_OR_MORE)
from spyder.utils.sourcecode import CELL_LANGUAGES
from spyder.utils.workers import WorkerManager

Expand Down Expand Up @@ -294,12 +295,30 @@ def make_python_patterns(additional_keywords=[], additional_builtins=[]):
r"\bcls\b",
(r"^\s*@([a-zA-Z_][a-zA-Z0-9_]*)"
r"(\.[a-zA-Z_][a-zA-Z0-9_]*)*")])
number = any("number",
[r"\b[+-]?[0-9]+[lLjJ]?\b",
r"\b[+-]?0[xX][0-9A-Fa-f]+[lL]?\b",
r"\b[+-]?0[oO][0-7]+[lL]?\b",
r"\b[+-]?0[bB][01]+[lL]?\b",
r"\b[+-]?[0-9]+(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?[jJ]?\b"])
number_regex = [r"\b[+-]?[0-9]+[lLjJ]?\b",
r"\b[+-]?0[xX][0-9A-Fa-f]+[lL]?\b",
r"\b[+-]?0[oO][0-7]+[lL]?\b",
r"\b[+-]?0[bB][01]+[lL]?\b",
r"\b[+-]?[0-9]+(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?[jJ]?\b"]
# Needed to achieve correct highlighting in Python 3.6+
# See issue 7324
if PY36_OR_MORE:
# Based on
# https://github.com/python/cpython/blob/
# 81950495ba2c36056e0ce48fd37d514816c26747/Lib/tokenize.py#L117
# In order: Hexnumber, Binnumber, Octnumber, Decnumber,
# Pointfloat + Exponent, Expfloat, Imagnumber
number_regex = [
r"\b[+-]?0[xX](?:_?[0-9A-Fa-f])+[lL]?\b",
r"\b[+-]?0[bB](?:_?[01])+[lL]?\b",
r"\b[+-]?0[oO](?:_?[0-7])+[lL]?\b",
r"\b[+-]?(?:0(?:_?0)*|[1-9](?:_?[0-9])*)[lL]?\b",
r"\b((\.[0-9](?:_?[0-9])*')|\.[0-9](?:_?[0-9])*)"
"([eE][+-]?[0-9](?:_?[0-9])*)?[jJ]?\b",
r"\b[0-9](?:_?[0-9])*([eE][+-]?[0-9](?:_?[0-9])*)?[jJ]?\b",
r"\b[0-9](?:_?[0-9])*[jJ]\b"]
number = any("number", number_regex)

sqstring = r"(\b[rRuU])?'[^'\\\n]*(\\.[^'\\\n]*)*'?"
dqstring = r'(\b[rRuU])?"[^"\\\n]*(\\.[^"\\\n]*)*"?'
uf_sqstring = r"(\b[rRuU])?'[^'\\\n]*(\\.[^'\\\n]*)*(\\)$(?!')$"
Expand Down