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comparison emacs/prompt-for-word.el @ 0:509549c55989

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author Henry S. Thompson <ht@inf.ed.ac.uk>
date Tue, 25 May 2021 13:57:42 -0400
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-1:000000000000 0:509549c55989
1 ;; Last edited: Wed Nov 14 14:20:08 1990
2 ;;; define an interlisp-style prompt-for-word
3 (provide 'prompt-for-word)
4
5 (defun prompt-for-word (prompt candidate completion-table keymap)
6 "prompt for a word using PROMPT, and CANDIDATE as first choice.
7 If any inserting characters are typed, they replace the candidate.
8 Uses KEYMAP if non-nil, otherwise
9 if completion-table is non-nil,
10 uses minibuffer-local-must-match-map plus ^N to exit as is,
11 thereby allowing New answers,
12 otherwise uses minibuffer-local-map."
13 (let ((current-window (selected-window))
14 (echo-keystrokes 0)
15 char)
16 (select-window (minibuffer-window))
17 (erase-buffer)
18 (insert prompt candidate)
19 (setq char (read-char))
20 (let ((str (make-string 1 char)))
21 (if (eq (or (local-key-binding str)
22 (global-key-binding str))
23 'self-insert-command)
24 (setq candidate nil)))
25 (select-window current-window)
26 (if (boundp 'unread-command-event)
27 ;; lemacs
28 (setq unread-command-event
29 (character-to-event char))
30 (setq unread-command-char char))
31 (let ((minibuffer-completion-table completion-table)
32 (minibuffer-completion-confirm nil))
33 ;; not quite the same as completing-read, because you can't
34 ;; get m-c-c nil and m-m-map simultaneously
35 (read-from-minibuffer prompt candidate
36 (or keymap
37 (if completion-table
38 ;; allow ^N to exit with non-match for
39 ;; new names
40 pfw-map
41 minibuffer-local-map))))))
42
43 (defvar pfw-map (let ((new (copy-keymap minibuffer-local-must-match-map)))
44 (define-key new "\C-n" 'exit-minibuffer)
45 new)
46 "special completion map for prompt-for-word (q.v.)")
47