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bug#5524: 23.1.92; `initials' completion style doesn't work as documente

From: Stefan Monnier
Subject: bug#5524: 23.1.92; `initials' completion style doesn't work as documented
Date: Thu, 04 Feb 2010 23:22:26 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.91 (gnu/linux)

>   Completion of acronyms and initialisms.
>   E.g. can complete M-x lch to list-command-history
>   and C-x C-f ~/sew to ~/src/emacs/work.

> While the M-x example works, the find-file example doesn't (with emacs
> -Q).  For example, I have ~/repos/org/uni.org, but
>   C-x C-f ~/rou TAB
> says [no match].  Same for

Thanks for using this feature ;-)
Indeed, it broke recently, but the patch below should make it work


=== modified file 'lisp/minibuffer.el'
--- lisp/minibuffer.el  2010-01-13 08:35:10 +0000
+++ lisp/minibuffer.el  2010-02-05 04:17:38 +0000
@@ -2063,9 +2063,12 @@
 ;; Complete /ums to /usr/monnier/src or lch to list-command-history.
 (defun completion-initials-expand (str table pred)
-  (unless (or (zerop (length str))
-              (string-match completion-pcm--delim-wild-regex str))
     (let ((bounds (completion-boundaries str table pred "")))
+    (unless (or (zerop (length str))
+                ;; Only check within the boundaries, since the
+                ;; boundary char (e.g. /) might be in delim-regexp.
+                (string-match completion-pcm--delim-wild-regex str
+                              (car bounds)))
       (if (zerop (car bounds))
           (mapconcat 'string str "-")
         ;; If there's a boundary, it's trickier.  The main use-case

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