Subject: bug#25856: closed (Re: bug#25856: 25.1; after-string of overlay may not be displayed)

From: [email-masked] (GNU bug Tracking System)
Date: Fri, 24 Feb 2017 08:36:02 +0000

Your bug report

#25856: 25.1; after-string of overlay may not be displayed

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
25856: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=25856
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#25856: 25.1; after-string of overlay may not be displayed
From: Eli Zaretskii <[email-masked]>
To: [email-masked]
Cc: [email-masked]
Date: Fri, 24 Feb 2017 10:34:17 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

tags 25856 notabug
thanks

> From: [email-masked]
> Date: Fri, 24 Feb 2017 15:19:06 +0900
> 
> Evaluating the form below, I expect to see 4 <BeforeAfter>.
> It displays 3 <Before> and 1 <BeforeAfter>.
> If before-string is not specified, 4 <After> are displayed.
> 
> (dotimes (i 4)
>   (let ((p (point)) ol)
>     (insert "<HIDDEN>\n")
>     (setq ol (make-overlay (1+ p) (- (point) 2)))
>     (cond ((= i 0) (overlay-put ol 'display ""))
>           ((= i 1) (overlay-put ol 'invisible t))
>           ((= i 2) (put-text-property (1+ p) (- (point) 2) 'display ""))
>           ((= i 3) (put-text-property (1+ p) (- (point) 2) 'invisible t)))
>     (overlay-put ol 'before-string "Before")
>     (overlay-put ol 'after-string  "After")
>     (overlay-put ol 'evaporate t)))

I don't see any bug here.  You are making text disappear using
different methods, and each one has its implications wrt before- and
after-string.

Subject: 25.1; after-string of overlay may not be displayed
From: [email-masked]
To: [email-masked]
Date: Fri, 24 Feb 2017 15:19:06 +0900
List-Id: <debbugs-submit.debbugs.gnu.org>

Evaluating the form below, I expect to see 4 <BeforeAfter>.
It displays 3 <Before> and 1 <BeforeAfter>.
If before-string is not specified, 4 <After> are displayed.

(dotimes (i 4)
  (let ((p (point)) ol)
    (insert "<HIDDEN>\n")
    (setq ol (make-overlay (1+ p) (- (point) 2)))
    (cond ((= i 0) (overlay-put ol 'display ""))
          ((= i 1) (overlay-put ol 'invisible t))
          ((= i 2) (put-text-property (1+ p) (- (point) 2) 'display ""))
          ((= i 3) (put-text-property (1+ p) (- (point) 2) 'invisible t)))
    (overlay-put ol 'before-string "Before")
    (overlay-put ol 'after-string  "After")
    (overlay-put ol 'evaporate t)))

In GNU Emacs 25.1.1 (i686-w64-mingw32)
 of 2016-09-18 built on LAPHROAIG
Windowing system distributor 'Microsoft Corp.', version 6.0.6002
Configured using:
 'configure --host=i686-w64-mingw32 --without-dbus
 --without-compress-install CFLAGS=-static'

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS

Important settings:
  value of $LANG: JPN
  locale-coding-system: cp932

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
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Memory information:
((conses 8 108615 23445)
 (symbols 32 21061 0)
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 (strings 16 20086 4799)
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