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[feat] calculator: add support for math constants (e, pi)

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Bnyro 2025-06-26 15:22:53 +02:00 • committed by Markus Heiser
parent 27466faadb
commit 99033f548e
1 changed files with 11 additions and 4 deletions
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15
searx/plugins/calculator.py
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@ -5,6 +5,7 @@ from __future__ import annotations
import typing import typing
import ast import ast
import math
import re import re
import operator import operator
import multiprocessing import multiprocessing
@ -67,10 +68,6 @@ class SXNGPlugin(Plugin):
group = ui_locale.number_symbols["latn"]["group"] group = ui_locale.number_symbols["latn"]["group"]
query = re.sub(f"[0-9]+[{decimal}|{group}][0-9]+[{decimal}|{group}]?[0-9]?", _decimal, query) query = re.sub(f"[0-9]+[{decimal}|{group}][0-9]+[{decimal}|{group}]?[0-9]?", _decimal, query)
# only numbers and math operators are accepted
if any(str.isalpha(c) for c in query):
return results
# in python, powers are calculated via ** # in python, powers are calculated via **
query_py_formatted = query.replace("^", "**") query_py_formatted = query.replace("^", "**")
@ -136,6 +133,13 @@ operators: dict[type, typing.Callable] = {
ast.Compare: _compare, ast.Compare: _compare,
} }
math_constants = {
'e': math.e,
'pi': math.pi,
}
# with multiprocessing.get_context("fork") we are ready for Py3.14 (by emulating # with multiprocessing.get_context("fork") we are ready for Py3.14 (by emulating
# the old behavior "fork") but it will not solve the core problem of fork, nor # the old behavior "fork") but it will not solve the core problem of fork, nor
# will it remove the deprecation warnings in py3.12 & py3.13. Issue is # will it remove the deprecation warnings in py3.12 & py3.13. Issue is
@ -184,6 +188,9 @@ def _eval(node):
if isinstance(node, ast.Compare): if isinstance(node, ast.Compare):
return _compare(node.ops, [_eval(node.left)] + [_eval(c) for c in node.comparators]) return _compare(node.ops, [_eval(node.left)] + [_eval(c) for c in node.comparators])
if isinstance(node, ast.Name) and node.id in math_constants:
return math_constants[node.id]
raise TypeError(node) raise TypeError(node)