I experience the following problem when trying to complete local filenames when TRAMP is loaded.
In "emacs-29.1.90 -Q", I run: (package-initialize) (require 'orderless) (setq completion-styles '(orderless)) Then, I type: C-x C-f C-a C-k /ssh: C-a C-k /zzz TAB I see: Click on a completion to select it. In this buffer, type RET to select the completion near point. 45 possible completions: -: adb: afp: dav: davs: doas: docker: fcp: ftp: gdrive: krlogin: ksu: kubernetes: mtp: nc: nextcloud: plink-ksh: plink: plinkx: podman: pscp: psftp: rclone: rcp: remcp: remsh: rsh: rsync: scp-ksh: scp: scpx: sftp: sg: smb: ssh-ksh: ssh: sshfs: sshx: su: sudo-csw-ksh: sudo-csw: sudo-ksh: sudo: sudoedit: telnet: This isn’t correct, since none of these match "/zzz". This goes away if I "(setq completion-styles '(basic))" or "(setq completion-styles '(substring))", so I reported this as a bug against the orderless package (https://github.com/oantolin/orderless/issues/150). However, Daniel Mendler kindly did some investigation, and pointed out, “The problem is that the Tramp completion table does not perform proper filtering. The completion style substring performs (inefficient) double filtering, such that the problem is hidden. The consequence of this is also that substring is two timers slower than Orderless.” He goes on to give some examples as documentation references. So, although only orderless completion triggers this (as far as I’ve found so far), it sounds like it’s caused by a bug in TRAMP? -- Peter Oliver
