zsh completion doesn't add space after choose a word

[Sherlock-Holo]

prctl [<GLOBAL-OPTION>]...;

prctl [<GLOBAL-OPTION>]... cg "cgroups related commands" list "list prctl creates cgroups";
prctl [<GLOBAL-OPTION>]... cg "cgroups related commands" create "create a cgroup by name" [(-h | --help) "Print help"] <PATTERNS>...;
prctl [<GLOBAL-OPTION>]... cg "cgroups related commands" delete "delete a cgroup by name" [(-h | --help) "Print help"] <CGROUPS>...;
prctl [<GLOBAL-OPTION>]... cg "cgroups related commands" show "show cgroup control processes" [(-h | --help) "Print help"] <CGROUPS>...;
prctl [<GLOBAL-OPTION>]... process "process related commands" move "move pids to specify cgroup" [(-h | --help) "Print help"] <CGROUPS> <PIDS>...;

<GLOBAL-OPTION> ::= (-t <CGROUP_TYPE>) "[default: v2] [possible values: systemd, v2]"
                    | (--pause-path <PATH>) "pause path"
                    | (-h | --help) "Print help";

<CGROUPS> ::= {{{ prctl cg list }}};
<CGROUP_TYPE> ::= (systemd | v2);

that's my usage file, when I compile and source it in zsh, input prctl c then press , it show complete the cg` and add a space after the word, but it doesn't

[adaszko]

Hi! This is a known limitation. Until zsh allows for calling _describe function twice to specify completions, I don't think it can be fixed on the complgen side.

See comment from _describe sources:

% run-help _describe
_describe is a shell function from /opt/homebrew/Cellar/zsh/5.9/share/zsh/functions/_describe
% head /opt/homebrew/Cellar/zsh/5.9/share/zsh/functions/_describe
[...]
# ### Note: Calling this function twice during one completion operation, such
# ### that in each call there exists a pair of items having the same description
# ### as each other, and the two calls specify the same $_type, currently leads
# ### to garbled output; see workers/35229 (May 2015) and its thread (which also
# ### discusses at least two other issues, that may or may not be related to
# ### this one).
[...]

[adaszko]

I pushed a commit with an alternative trailing space handling in JIT mode proving there's a way after all. It still needs to be ported to the AOT mode though.

[adaszko]

Check with latest master please. This should now behave properly.

[adaszko]

Fix included in the latest release.