Strange re-search-forward

Strange re-search-forward

[Andreas Röhler]

Evaluating in buffer

(re-search-forward "[ -?]+" nil t)

foo.bar baz

;;;;;;;

matches the period after foo.

Any explanation?

Thanks,

Andreas
GNU Emacs 25.0.90.1 (i686-pc-linux-gnu, GTK+ Version 2.24.25) of 2016-01-31

Re: Strange re-search-forward

[Marcin Borkowski]

On 2016-02-24, at 09:27, Andreas Röhler <andreas.roehler@easy-emacs.de> wrote:

> Evaluating in buffer
>
> (re-search-forward "[ -?]+" nil t)
>
> foo.bar baz
>
> ;;;;;;;
>
> matches the period after foo.
>
> Any explanation?

space: ascii 32
period: ascii 46
question mark: ascii 63

46 ∈ {32,...,63}

so what's wrong?

> Thanks,
>
> Andreas
> GNU Emacs 25.0.90.1 (i686-pc-linux-gnu, GTK+ Version 2.24.25) of 2016-01-31

Best,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University

Re: Strange re-search-forward

[Andreas Röhler]

On 24.02.2016 10:08, Marcin Borkowski wrote:
> On 2016-02-24, at 09:27, Andreas Röhler <andreas.roehler@easy-emacs.de> wrote:
>
>> Evaluating in buffer
>>
>> (re-search-forward "[ -?]+" nil t)
>>
>> foo.bar baz
>>
>> ;;;;;;;
>>
>> matches the period after foo.
>>
>> Any explanation?
> space: ascii 32
> period: ascii 46
> question mark: ascii 63
>
> 46 ∈ {32,...,63}
>
> so what's wrong?
>

Ohh, shame on me.

Minus must come first if meant literally.

Thanks!

Re: Strange re-search-forward

[Marcin Borkowski]

On 2016-02-24, at 10:18, Andreas Röhler <andreas.roehler@easy-emacs.de> wrote:

> On 24.02.2016 10:08, Marcin Borkowski wrote:
>> On 2016-02-24, at 09:27, Andreas Röhler <andreas.roehler@easy-emacs.de> wrote:
>>
>>> Evaluating in buffer
>>>
>>> (re-search-forward "[ -?]+" nil t)
>>>
>>> foo.bar baz
>>>
>>> ;;;;;;;
>>>
>>> matches the period after foo.
>>>
>>> Any explanation?
>> space: ascii 32
>> period: ascii 46
>> question mark: ascii 63
>>
>> 46 ∈ {32,...,63}
>>
>> so what's wrong?
>>
>
> Ohh, shame on me.
>
> Minus must come first if meant literally.

Or last, or right after a range.

> Thanks!

You're welcome!

Seems you had a problem, and you decided to use regexen... ;-)

Best,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University

Re: Strange re-search-forward

[Nick Dokos]

Marcin Borkowski <mbork@mbork.pl> writes:

> You're welcome!
>
> Seems you had a problem, and you decided to use regexen... ;-)


Now, you have ... ;-)

--
Nick