* Using interactive functions in functions
@ 2002-12-06 21:24 Bill Wohler
0 siblings, 0 replies; 3+ messages in thread
From: Bill Wohler @ 2002-12-06 21:24 UTC (permalink / raw)
Consider the following fragment which runs tags-query-replace on a
number of strings:
(let ((strings '("foo" "bar")))
(while strings
(tags-query-replace (car strings) "newstring")
(setq strings (cdr strings)))
However, this loop ends when tags-query-replace returns the first time
so "bar" is never replaced.
What magic do I need to wrap tags-query-replace in to continue with
the rest of the strings?
--
Bill Wohler <wohler@newt.com> http://www.newt.com/wohler/ GnuPG ID:610BD9AD
Maintainer of comp.mail.mh FAQ and MH-E. Vote Libertarian!
If you're passed on the right, you're in the wrong lane.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Using interactive functions in functions
[not found] <mailman.1039209908.7595.help-gnu-emacs@gnu.org>
@ 2002-12-06 21:49 ` Michael Slass
2002-12-06 23:18 ` Stefan Monnier <foo@acm.com>
1 sibling, 0 replies; 3+ messages in thread
From: Michael Slass @ 2002-12-06 21:49 UTC (permalink / raw)
Bill Wohler <wohler@newt.com> writes:
> Consider the following fragment which runs tags-query-replace on a
> number of strings:
>
> (let ((strings '("foo" "bar")))
> (while strings
> (tags-query-replace (car strings) "newstring")
> (setq strings (cdr strings)))
>
> However, this loop ends when tags-query-replace returns the first time
> so "bar" is never replaced.
>
What happens if you use query-replace (which see) instead?
--
Mike Slass
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Using interactive functions in functions
[not found] <mailman.1039209908.7595.help-gnu-emacs@gnu.org>
2002-12-06 21:49 ` Michael Slass
@ 2002-12-06 23:18 ` Stefan Monnier <foo@acm.com>
1 sibling, 0 replies; 3+ messages in thread
From: Stefan Monnier <foo@acm.com> @ 2002-12-06 23:18 UTC (permalink / raw)
>>>>> "Bill" == Bill Wohler <wohler@newt.com> writes:
> Consider the following fragment which runs tags-query-replace on a
> number of strings:
> (let ((strings '("foo" "bar")))
> (while strings
> (tags-query-replace (car strings) "newstring")
> (setq strings (cdr strings)))
> However, this loop ends when tags-query-replace returns the first time
> so "bar" is never replaced.
> What magic do I need to wrap tags-query-replace in to continue with
> the rest of the strings?
I'm not sure exactly how tags-query-replace terminates, but if
it ends up short-circuiting the loop above, then it's either through
`signal' or `throw'. A quick investigation shows it's probably not
`throw', so try something like
(condition-case err
(tags-query-replace ...)
(error
(if (examine err if you feel like it)
(do something)
(do something else))))
-- Stefan
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2002-12-06 21:24 Using interactive functions in functions Bill Wohler
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2002-12-06 21:49 ` Michael Slass
2002-12-06 23:18 ` Stefan Monnier <foo@acm.com>
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