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bug#61274: 29.0.60; dabbrev-capf signals errors
From: |
Daniel Mendler |
Subject: |
bug#61274: 29.0.60; dabbrev-capf signals errors |
Date: |
Sat, 04 Feb 2023 12:03:26 +0100 |
The completion-at-point-function `dabbrev-capf' sometimes signals
errors. It would be good if the function would not do that but return
nil if no completions are found, such that the next Capf from the list
of completion functions gets its chance to run.
1. Start emacs -Q
2. Evaluate (require 'dabbrev).
3. Evaluate (setq completion-at-point-functions '(dabbrev-capf)) in the
scratch buffer.
4. Type `x M-TAB` in the scratch buffer. I observe the following error:
Debugger entered--Lisp error: (wrong-type-argument stringp nil)
dabbrev--goto-start-of-abbrev()
dabbrev--abbrev-at-point()
dabbrev-capf()
completion--capf-wrapper(dabbrev-capf all)
completion-at-point()
funcall-interactively(completion-at-point)
command-execute(completion-at-point)
Furthermore if no completions are found `dabbrev-capf' signals an error.
The messages buffer will then contain:
Scanning for dabbrevs...done
completion--some: No dynamic expansion for "xyz" found
In GNU Emacs 29.0.60 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo
version 1.16.0, Xaw scroll bars) of 2023-01-26 built on projects
Repository revision: f8c95d1a7681e861fc22d2a040cda0ddfe23eff4
Repository branch: emacs-29
Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
System Description: Debian GNU/Linux 11 (bullseye)
- bug#61274: 29.0.60; dabbrev-capf signals errors,
Daniel Mendler <=
- bug#61274: 29.0.60; dabbrev-capf signals errors, Eli Zaretskii, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Daniel Mendler, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Eli Zaretskii, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Stefan Monnier, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Eli Zaretskii, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Daniel Mendler, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Eli Zaretskii, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Daniel Mendler, 2023/02/04
- bug#61274: 29.0.60; dabbrev-capf signals errors, Daniel Mendler, 2023/02/04