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Improve region deletion handling in python.el

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* lisp/progmodes/python.el (python-indent-dedent-line-backspace):
Delete the text in the region if Transient Mark mode is enabled,
the mark is active, and prefix arg is 1.  (Bug#48695)

* test/lisp/progmodes/python-tests.el
(python-indent-dedent-line-backspace-4): Add new test.
This commit is contained in:
Jakub Ječmínek 2025-06-29 23:56:13 +02:00 • committed by Eli Zaretskii
parent 2846dd8842
commit e52ed1b5d1
3 changed files with 31 additions and 3 deletions
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9
lisp/progmodes/python.el
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@ -1967,10 +1967,13 @@ indentation levels from right to left."
(defun python-indent-dedent-line-backspace (arg)
"De-indent current line.
Argument ARG is passed to `backward-delete-char-untabify' when
point is not in between the indentation."
Argument ARG is passed to `backward-delete-char-untabify' when point is
not in between the indentation or when Transient Mark mode is enabled,
the mark is active, and ARG is 1."
(interactive "*p")
(unless (python-indent-dedent-line)
(when (or
(and (use-region-p) (= arg 1))
(not (python-indent-dedent-line)))
(backward-delete-char-untabify arg)))
(put 'python-indent-dedent-line-backspace 'delete-selection 'supersede)