ron at awun.net
Thu Jun 25 07:00:51 UTC 2009
On Jun 24, 2009, at 11:42 PM, Gary Byers wrote:
> On Wed, 24 Jun 2009, Ron Garret wrote:
>> Pressing TAB indents the current line, but not the current region (if
>> there's one selected. If I do this:
>> (hi:bind-key "Indent Region" #k"tab")
>> then TAB indents the current region if one is selected, but not the
>> current line if one is not.
>> Is there any way to get TAB to do both depending on whether or not
>> there is a selection?
> Sure: define a command that does both, depending on whether or not
> there's a selection, then bind #k"tab" to that command.
(defcommand "Indent" (p)
"Invokes function held by the Hemlock variable \"Indent Function\",
moving point past region if called with argument."
(let ((region (current-region)))
(with-mark ((start (region-start region) :left-inserting)
(end (region-end region) :left-inserting))
(indent-region-for-commands (region start end))))
(let ((point (current-point)))
(with-mark ((mark point :left-inserting))
(cond ((or (not p) (zerop p))
(funcall (value indent-function) mark)
(when (mark< point mark)
(move-mark point mark)))
(if (plusp p)
(unless (line-offset point (1- p))
(unless (line-offset mark (1+ p))
(indent-region-for-commands (region mark point))
(find-attribute (line-start point) :whitespace
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