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Re: query-replace-interactive not documented
From: |
Juri Linkov |
Subject: |
Re: query-replace-interactive not documented |
Date: |
Wed, 16 Jun 2004 11:08:43 +0300 |
User-agent: |
Gnus/5.110002 (No Gnus v0.2) Emacs/21.3.50 (gnu/linux) |
David Kastrup <address@hidden> writes:
>> Another option may be
>> \`read-expression optionally followed by ' which gives us
>>
>> \\footnote{\\label{fn:\`replace-count'}}
>>
>> as well as
>>
>> \\footnote{\\label{fn:\`(or replace-count)}}
>>
>> \` has somewhat more of a "will be evaluated later" scent and it has
>> the advantage that it is somewhat natural to match it up with ' in
>> case we need to explicitly end the read expression.
Perhaps \` is a better symbol than \', but having a special
meaning of ' following the expression seems wrong. This is
an additional rule that the user should learn, and it may produce
undesirable results when users forget this rule and put ' with
the intention to use it in the replacement.
> Ok, here is the whole ugly thing: it certainly won't interfere with
> programming since it does all the work in the interactive spec (see
> C-x ESC ESC for the show. BTW, can anybody tell me how the command
> history manages to record the last two arguments unevaluated? I can't
> for the life of me figure out how this works), so certainly no
> security risk.
I think moving the code into the interactive spec is not needed.
There is no security risk in having it in the function body,
because the `query-flag' argument of `perform-replace' is t,
which means that even when the function `query-replace-regexp'
is called non-interactively the user can see the replacement string
and type `y' if he agrees with it.
> If somebody has a good suggestion how one could get rid of
> replace-requote in the command history, it would be nice to hear.
> But I really think that \`"\\3"' should deliver a _verbatim_ \3, or
> we could have written \`\3' in the first place.
This imposes artificial restrictions on what the user can do. The user
may want to construct a replacement string with backreferences in the
Lisp expression. I think that only the user should decide whether he
wants a verbatim \3 or its replacement. He can add backslashes for
the literal meaning and write \`"\\\\3"' instead of \`"\\3"'.
--
Juri Linkov
http://www.jurta.org/emacs/
- Re: query-replace-interactive not documented, (continued)
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/14
- Re: query-replace-interactive not documented, Juri Linkov, 2004/06/15
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/15
- Re: query-replace-interactive not documented, Juri Linkov, 2004/06/15
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/15
- Re: query-replace-interactive not documented, Andreas Schwab, 2004/06/15
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/15
- Re: query-replace-interactive not documented, Kim F. Storm, 2004/06/15
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/15
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/15
- Re: query-replace-interactive not documented,
Juri Linkov <=
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/16
- Re: query-replace-interactive not documented, Juri Linkov, 2004/06/16
- Re: query-replace-interactive not documented, Richard Stallman, 2004/06/17
- Re: query-replace-interactive not documented, Juri Linkov, 2004/06/16
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/16
- Re: query-replace-interactive not documented, Kevin Rodgers, 2004/06/16
- Re: query-replace-interactive not documented, Andreas Schwab, 2004/06/16
- Re: query-replace-interactive not documented, Miles Bader, 2004/06/15
- Re: query-replace-interactive not documented, David Kastrup, 2004/06/15
- Re: query-replace-interactive not documented, Miles Bader, 2004/06/15