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48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
# Copyright (c) 2022 Rocky Bernstein
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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def joined_str_invalid(
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self, lhs: str, n: int, rule, tree, tokens: list, first: int, last: int
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) -> bool:
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# In Python 3.8, there is a new "=" specifier.
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# See https://docs.python.org/3/whatsnew/3.8.html#f-strings-support-for-self-documenting-expressions-and-debugging
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# We detect this here inside joined_str by looking for an
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# expr->LOAD_STR which has an "=" added at the end
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# and is equal without the "=" to expr->formated_value2->LOAD_CONST
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# converted to a string.
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expr1 = tree[0]
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if expr1 != "expr":
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return False
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load_str = expr1[0]
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if load_str != "LOAD_STR":
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return False
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format_value_equal = load_str.attr
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if format_value_equal[-1] != "=":
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return False
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expr2 = tree[1]
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if expr2 != "expr":
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return False
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formatted_value = expr2[0]
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if not formatted_value.kind.startswith("formatted_value"):
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return False
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expr2a = formatted_value[0]
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if expr2a != "expr":
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return False
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load_const = expr2a[0]
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if load_const == "LOAD_CONST":
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format_value2 = load_const.attr
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return str(format_value2) == format_value_equal[:-1]
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return True
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