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set-fontset-font is slow if the fontset is specified by a long name


From: YAMAMOTO Mitsuharu
Subject: set-fontset-font is slow if the fontset is specified by a long name
Date: Sun, 24 Oct 2004 16:29:58 +0900 (JST)
User-agent: SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3.50 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

When a fontset name is specified in a long format, set-fontset-font
takes much time to complete.  For example, the evaluation of the
following expression terminates instantly.

  (dotimes (i 100)
    (set-fontset-font "fontset-default"
                      'latin-iso8859-1
                      '("helvetica" . "iso8859-1")))

But if we replace "fontset-default" with
"-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default", then it becomes much
slower.

  (dotimes (i 100)
    (set-fontset-font "-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"
                      'latin-iso8859-1
                      '("helvetica" . "iso8859-1")))

Of course, "-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default" is contained in
the result of (fontset-list).

                                     YAMAMOTO Mitsuharu
                                address@hidden

In GNU Emacs 21.3.50.1 (sparc-sun-solaris2.8, X toolkit, Xaw3d scroll bars)
 of 2004-10-24 on church
configured using `configure '--x-libraries=/usr/local/lib' 'CFLAGS=-O2 -mv8''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ja
  locale-coding-system: japanese-iso-8bit
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  display-time-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t




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