[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: regexp hell
From: |
B. T. Raven |
Subject: |
Re: regexp hell |
Date: |
Fri, 28 Dec 2012 11:33:10 -0600 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20120907 Thunderbird/15.0.1 |
> On 28/12/2012 10:57, B. T. Raven wrote:
>
>> I am trying to byte-compile my .emacs for the first time and I see the
>> complaint "replace-string is to be used interactively..." or something.
>> I am using the form:
>>
>> (replace-string "\\" "\\\\" nil (point-min) (point-max))
>>
>> in a function and it seems to work but I can't make any equivalent re's
>> work in re-search-forward (the suggested equivalent to be used in a
>> lisp programm). I can't get past the "trailing backslash" error. Is
>> there something kosher for the above replace-string form?
>>
>> Thanks,
>>
>> Ed
>>
>
> You can use `search-forward' (which searches for string, not for regexp),
> as it is suggested in documentation for `replace-string':
>
> (while (search-forward FROM-STRING nil t)
> (replace-match TO-STRING nil t))
>
> Then with the above strings it should replace one backslash with two.
Thanks, Filipp. That's what I needed. Now the .emacs byte-compiles
without issuing a warning.
>
> But if you still need to write a regexp, it seems that you need to
> double the amount of backslashes. To include a backslash in a regexp you
> need to prefix it with another backslash and each backslash should be
> prefixed with another one when written in a lisp program (so, 4
> backslashes in a program for a single one in regexp).
>
- regexp hell, B. T. Raven, 2012/12/28
- Re: regexp hell, Filipp Gunbin, 2012/12/28
- Message not available
- Re: regexp hell,
B. T. Raven <=