RE: partial completion and switch-to-buffer

[Drew Adams]

> I am aware of iswitch-mode and ido-mode, which does substring matching
> (which is basically what I want), but find them too obtrusive. I do not
> want any completion to be done unless I say so (by pressing <tab>).

Icicles does no completion until you say so (by pressing TAB), by default.

http://www.emacswiki.org/cgi-bin/wiki/Icicles


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Details -

* To get substring completion instead of prefix completion, use S-TAB.

* Or, if you want to use TAB for both prefix and substring completion, then set
option `icicle-cycling-respects-completion-mode' to t. (Use TAB / S-TAB to
change the completion mode: prefix / substring.)

* S-TAB actually does regexp completion, by default. To get only substring
completion, set option `icicle-regexp-quote-flag' to non-nil. Or use `C-`' in
the minibuffer to toggle it.

* When buffer *Completions* is showing, the completion candidates are updated as
you type (incremental completion), by default. To turn this off, set option
`icicle-incremental-completion-flag' to nil. Or use `C-#' in the minibuffer to
toggle it.