[BUG] zsh bad pattern when enabling recommended preview command

[de846]

Describe the bug

Configuring the provided example zstyle option for previewing with cd command results in zsh bad pattern error message.

I can make sure:

• I am using the latest version of fzf-tab
• this is the minimal zshrc which can reproduce this bug
• fzf-tab is loaded after compinit
• fzf-tab is loaded after plugins which will wrap Tab, like junegunn/fzf/completion.zsh
• fzf-tab is loaded before zsh-autosuggestions, zsh-syntax-highlighting and fast-syntax-highlighting.

To Reproduce

Steps to reproduce the behavior:
First-time setup:

1. Source the fzf-tab-plugin
2. Set the following zstyle line zstyle ':fzf-tab:complete:cd:*' fzf-preview 'exa -1 --color=always $realpath'

Then, In a new zsh

1. Type 'cd'
2. Press Tab
3. See error:

zsh:3: bad pattern: _ftb_compcap=(Desktop^B<^@>^@group^@1^@realdir^@^@args^@-Q^A-s^A^A-W^A^A-M^Ar:|/=* r:|=*^A-p^A^A-f^@word^@Desktop

Expected behavior

I expect the preview window to display the output of the command set by the zstyle command.

Screenshots

Environment:

• OS: [RHEL 7]
• zsh version: [5.9]

Minimal zshrc

source ~/.oh-my-zsh/custom/plugins/fzf-tab/fzf-tab.plugin.zsh
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
zstyle ':fzf-tab:complete:cd:*' fzf-preview 'exa -1 --color=always $realpath'
HISTSIZE=500000
SAVEHIST=500000

Log

If applicable, use C-x . to trigger completion and provide the log.

tags in context :completion::complete:cd::
    local-directories  (_cd)

If there are only three lines in your log, please make sure your fzf-tab is loaded with the correct order (see the checklist above).

[ayroblu]

I assume the issue is in this variable declaration:

fzf-tab/lib/-ftb-fzf

Line 12 in 14f66e4

local -a _ftb_compcap=(\"\${(@f)mapfile[$tmp_dir/compcap.$$]}\")

[Aloxaf]

How did you install zsh? Compile from source or install from RHEL official repo?

Can you provide the output of fzf --version && zsh --version ?

[ayroblu]

For me personally I'm using a standalone zsh + 0.30.0 fzf, but I'm wondering if it's possible to use a standard fzf completion here? Like I was really just trying to have tab trigger fzf in the same way that ctrl-t does, and there's a bunch of extra stuff happening.

[de846]

How did you install zsh? Compile from source or install from RHEL official repo?

Can you provide the output of fzf --version && zsh --version ?

❯ fzf --version
0.33.0 (0.33.0)

❯ zsh --version
zsh 5.9 (x86_64-pc-linux-gnu)

I'm using Nix packaged versions of fzf and zsh from Nixpkgs.

[ayroblu]

Figured this out for my use case, because I was using this on a corp, I had copied my macOS plugin to the centos box. By remaking in docker, and copying the output of that, this resolved the issue.