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patch 8.2.3149: some plugins have a problem with the error check

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Problem:    Some plugins have a problem with the error check for using
            :command with -complete but without -nargs.
Solution:   In legacy script only give a warning message.
This commit is contained in:
Bram Moolenaar
2021-07-11 19:12:04 +02:00
parent 5231224e11
commit cc7eb2aa7a
5 changed files with 52 additions and 4 deletions
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10
src/usercmd.c
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@@ -1027,7 +1027,15 @@ ex_command(exarg_T *eap)
&& STRNCMP(name, "Next", name_len > 4 ? 4 : name_len) == 0))
emsg(_("E841: Reserved name, cannot be used for user defined command"));
else if (compl > 0 && (argt & EX_EXTRA) == 0)
emsg(_(e_complete_used_without_nargs));
{
// Some plugins rely on silently ignoring the mistake, only make this
// an error in Vim9 script.
if (in_vim9script())
emsg(_(e_complete_used_without_nargs));
else
give_warning_with_source(
(char_u *)_(e_complete_used_without_nargs), TRUE, TRUE);
}
else
uc_add_command(name, end - name, p, argt, def, flags, compl, compl_arg,
addr_type_arg, eap->forceit);