patch 9.1.0101: upper-case of German sharp s should be U+1E9E Commit: https://github.com/vim/vim/commit/bd1232a1faf56b614a1e74c4ce51bc6e0650ae00 Author: glepnir <glephunter@gmail.com> Date: Mon Feb 12 22:14:53 2024 +0100 patch 9.1.0101: upper-case of German sharp s should be U+1E9E Problem: upper-case of ? should be U+1E9E (CAPITAL LETTER SHARP S) (fenuks) Solution: Make gU, ~ and g~ convert the U+00DF LATIN SMALL LETTER SHARP S (?) to U+1E9E LATIN CAPITAL LETTER SHARP S (?), update tests (glepnir) This is part of Unicode 5.1.0 from April 2008, so should be fairly safe to use now and since 2017 is part of the German standard orthography, according to Wikipedia: https://en.wikipedia.org/wiki/Capital_%E1%BA%9E#cite_note-auto-12 There is however one exception: UnicodeData.txt for U+00DF LATIN SMALL LETTER SHARP S does NOT define U+1E9E LATIN CAPITAL LETTER SHARP S as its upper case version. Therefore, toupper() won't be able to convert from lower sharp s to upper case sharp s (the other way around however works, since U+00DF is considered the lower case character of U+1E9E and therefore tolower() works correctly for the upper case version). fixes: #5573 closes: #14018 Signed-off-by: glepnir <glephunter@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>

README_extra.txt for version 9.1 of Vim: Vi IMproved.

These extra files of Vim are for special purposes.  This README explains what
the files are for.  For general information about Vim, see the "README.txt"
file.


farsi/*			Files for the Farsi (persian) language.  If you don't
			know what Farsi is, this is not for you.

src/if_sniff.*		Interface to SNiFF.  If you don't know what SNiFF is,
			this is not for you.

src/os_amiga.*		Files for the Amiga port.

src/os_msdos.*
src/os_dos.*		Files for the MS-DOS port.

src/os_mac.*		Files for the Mac port.

src/os_vms*		Files for the VMS port.

src/os_w32*
src/os_win32.*		Files for the Win32 port.

src/gui_w32.*		Files for the Win32 GUI.
src/gui_w48.*		Files for the Win32 and Win16 GUI.
src/Make_mvc.mak	MS Visual C++ makefile for the Win32 GUI.

src/if_ole.*		OLE automation interface, for MS Windows 95 and NT.

src/GvimExt/*		DLL for the "Edit with Vim" context menu entry

nsis/*			NSIS script to build the self-installing MS-Windows exe

runtime/doc/*.man	Preprocessed manual pages.

runtime/macros/file_select.vim	Vim script to browse directories (Unix only).