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Sat, 29 Jul 2006 10:21:58 +0200
Thunderbird 220.127.116.11 (X11/20060516)
Emacs Manual says
| 18.104.22.168 Numbered Backups
| The choice of single backup file or multiple numbered backup files is
| controlled by the variable `version-control'. Its possible values are:
| Make numbered backups.
| Make numbered backups for files that have numbered backups already.
| Otherwise, make single backups.
| Never make numbered backups; always make single backups.
which at a first glance seems not congruent with menu
| (defcustom version-control nil
| "*Control use of version numbers for backup files.
| t means make numeric backup versions unconditionally.
| nil means make them for files that have some already.
| `never' means do not make them."
| :type '(choice (const :tag "Never" never)
| (const :tag "If existing" nil)
| (other :tag "Always" t))
i.e. user sees only tag names while customizing, not
the actual or choosen values.
As providing a hint inside the tag as shown below.
(const :tag "If existing (nil)" nil)
(other :tag "Always (t)" t))
may lead into confusion--"If existing" isn't
"nil" in the word sense--probably the cleanest way would be to put "If
existing" the way as "Never" is handled - asigning a
special symbol here, for example "Conditional".
- version-control customization,
Andreas Roehler <=