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[New bash version] 5 new items #6414

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[New bash version] Bash-5.3 patch 20: If readline handles a SIGWINCH and updates its idea of the screen dimensions, it needs to recompute the columns where the prompt wraps lines every time, not just when the screen width decreases.

https://cgit.git.savannah.gnu.org/cgit/bash.git/commit/?id=9c465866b7d849378369ef700cbe2965aa9691e3

[New bash version] Bash-5.3 patch 19: work around systems including bytes between 128 and 255 in the isalpha(3) set, which causes bash to potentially include them in identifier names

https://cgit.git.savannah.gnu.org/cgit/bash.git/commit/?id=549639c902ff3fa07e49fb54916600408c2fde69

[New bash version] Bash-5.3 patch 18: fix readline crash with a prompt that exceeds 256 wrapped lines; fix readline redisplay code to print the entire prompt if the first few characters are identical but part of a terminal escape sequence and the prompt needs to be redrawn.

https://cgit.git.savannah.gnu.org/cgit/bash.git/commit/?id=49502f0cdd1331d73e8747552d791aea31706784

[New bash version] Bash-5.3 patch 17: Modify the readline redisplay code to use a buffer offset instead of the physical prompt length in a multibyte locale to determine whether to reprint the prompt from column 0 because the cursor is before the last invisible character in the prompt string.

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