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Fix Python font lock of chained assignment statement

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* lisp/progmodes/python.el
(python-font-lock-keywords-maximum-decoration): Allow chaining
of single assignment statements.
* test/lisp/progmodes/python-tests.el
(python-font-lock-assignment-statement-20): New test.
(Bug#71093)
This commit is contained in:
kobarity 2024-05-24 22:50:12 +09:00 • committed by Eli Zaretskii
parent 3291dea441
commit 3647645e94
2 changed files with 11 additions and 2 deletions
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3
lisp/progmodes/python.el
View file

@ -812,8 +812,7 @@ sign in chained assignment."
;; c: Collection = {1, 2, 3}
;; d: Mapping[int, str] = {1: 'bar', 2: 'baz'}
(,(python-font-lock-assignment-matcher
(python-rx (or line-start ?\;) (* space)
grouped-assignment-target (* space)
(python-rx grouped-assignment-target (* space)
(? ?: (* space) (+ not-simple-operator) (* space))
(group assignment-operator)))
(1 font-lock-variable-name-face)

10
test/lisp/progmodes/python-tests.el
View file

@ -474,6 +474,16 @@ def f(x: CustomInt) -> CustomInt:
(136 . font-lock-operator-face) (137)
(144 . font-lock-keyword-face) (150))))
(ert-deftest python-font-lock-assignment-statement-20 ()
(python-tests-assert-faces
"a = b = c = 1"
'((1 . font-lock-variable-name-face) (2)
(3 . font-lock-operator-face) (4)
(5 . font-lock-variable-name-face) (6)
(7 . font-lock-operator-face) (8)
(9 . font-lock-variable-name-face) (10)
(11 . font-lock-operator-face) (12))))
(ert-deftest python-font-lock-escape-sequence-string-newline ()
(python-tests-assert-faces
"'\\n'