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>

/* vim9script.c */
int in_vim9script(void);
int in_old_script(int max_version);
int current_script_is_vim9(void);
void clear_vim9_scriptlocal_vars(int sid);
void ex_vim9script(exarg_T *eap);
int not_in_vim9(exarg_T *eap);
int vim9_bad_comment(char_u *p);
int vim9_comment_start(char_u *p);
void ex_incdec(exarg_T *eap);
void ex_export(exarg_T *eap);
void free_imports_and_script_vars(int sid);
void mark_imports_for_reload(int sid);
void ex_import(exarg_T *eap);
void import_check_sourced_sid(int *sid);
int find_exported(int sid, char_u *name, ufunc_T **ufunc, type_T **type, cctx_T *cctx, cstack_T *cstack, int verbose);
char_u *vim9_declare_scriptvar(exarg_T *eap, char_u *arg);
void update_vim9_script_var(int create, dictitem_T *di, char_u *name, int flags, typval_T *tv, type_T **type, int do_member);
void hide_script_var(scriptitem_T *si, int idx, int func_defined);
svar_T *find_typval_in_script(typval_T *dest, scid_T sid, int must_find);
int check_script_var_type(svar_T *sv, typval_T *value, char_u *name, where_T where);
int check_reserved_name(char_u *name, int is_objm_access);
/* vim: set ft=c : */