smiley regexp problem

smiley regexp problem

[Rajsekar]

I want to setup the smileys similar to gaim.
So I put 

        "\\(:)\\)\\W" for smile.
and
        "\\(:))\\)\\W" for laugh.

The problem is that :)) also contains a :).  At the same time, i do not
want to replace \W with something like [^)] because i lose the advantage of
\W (which works based on the current syntax).  I want something like \\W
minus the character `('.  Can someone tell me how to achieve this?


-- 
    Rajsekar Manokaran
    IIT Madras

Re: smiley regexp problem

[Rajsekar]

Rajsekar <rajsekar@cse.iitm.ernet.in> writes:

> I want to setup the smileys similar to gaim.
> So I put 
>
>         "\\(:)\\)\\W" for smile.
> and
>         "\\(:))\\)\\W" for laugh.
>
> The problem is that :)) also contains a :).  At the same time, i do not
> want to replace \W with something like [^)] because i lose the advantage of
> \W (which works based on the current syntax).  I want something like \\W
> minus the character `('.  Can someone tell me how to achieve this?

I see from theory that the needed language is still a regexp, yet i am not
able to express it in the language of regexp.  Is it a shortcoming in the language?

-- 
    Rajsekar Manokaran
    IIT Madras

Re: smiley regexp problem

[David Kastrup]

Rajsekar <rajsekar@cse.iitm.ernet.in> writes:

> Rajsekar <rajsekar@cse.iitm.ernet.in> writes:
>
>> I want to setup the smileys similar to gaim.
>> So I put 
>>
>>         "\\(:)\\)\\W" for smile.
>> and
>>         "\\(:))\\)\\W" for laugh.
>>
>> The problem is that :)) also contains a :).  At the same time, i do not
>> want to replace \W with something like [^)] because i lose the advantage of
>> \W (which works based on the current syntax).  I want something like \\W
>> minus the character `('.  Can someone tell me how to achieve this?
>
> I see from theory that the needed language is still a regexp, yet i
> am not able to express it in the language of regexp.  Is it a
> shortcoming in the language?

Why don't you match "laugh" first, and only look for a smile if no
laugh is can be found?

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

Re: smiley regexp problem

[Rajsekar]

David Kastrup <dak@gnu.org> writes:

> Rajsekar <rajsekar@cse.iitm.ernet.in> writes:
>
>> Rajsekar <rajsekar@cse.iitm.ernet.in> writes:
>>
>>> I want to setup the smileys similar to gaim.
>>> So I put 
>>>
>>>         "\\(:)\\)\\W" for smile.
>>> and
>>>         "\\(:))\\)\\W" for laugh.
>>>
>>> The problem is that :)) also contains a :).  At the same time, i do not
>>> want to replace \W with something like [^)] because i lose the advantage of
>>> \W (which works based on the current syntax).  I want something like \\W
>>> minus the character `('.  Can someone tell me how to achieve this?
>>
>> I see from theory that the needed language is still a regexp, yet i
>> am not able to express it in the language of regexp.  Is it a
>> shortcoming in the language?
>
> Why don't you match "laugh" first, and only look for a smile if no
> laugh is can be found?

The code to add the smiley (gnus/smiley.el) does not allow me to do that.
If I have `:))', both, smile and laugh pictures get inserted.

-- 
    Rajsekar Manokaran
    IIT Madras

Re: smiley regexp problem

[LENNART BORGMAN]

> >>> I want to setup the smileys similar to gaim.
> >>> So I put 
> >>>
> >>>         "\\(:)\\)\\W" for smile.
> >>> and
> >>>         "\\(:))\\)\\W" for laugh.
> >>>
> >>> The problem is that :)) also contains a :).  At the same time, 
...
> > Why don't you match "laugh" first, and only look for a smile if no
> > laugh is can be found?
> 
> The code to add the smiley (gnus/smiley.el) does not allow me to 
> do that.
> If I have `:))', both, smile and laugh pictures get inserted.

Maybe you could add a complemented character set to the first one after the smile (with whatever slashes there are needed to get this to work): [^)] 

Re: smiley regexp problem

[Rajsekar]

LENNART BORGMAN <lennart.borgman.073@student.lu.se> writes:

>
> Maybe you could add a complemented character set to the first one after the smile (with whatever slashes there are needed to get this to work): [^)] 


The point is about \\W.  \\W matches any character that is not a
word-constituent.  I want `:-)' to become a smile if it is followed by any
of `\\W' but not ')'.  If I put it as "\\(:-?)\\)[^)]", then even strings
like "smile_within:-)strings" also get smileys.  So I am looking for a way
to specify "characters in \\W but no ')' in the language of regexps".


-- 
    Rajsekar Manokaran
    IIT Madras

Re: smiley regexp problem

[Lennart Borgman]

----- Original Message ----- 
From: "Rajsekar" <rajsekar@cse.iitm.ernet.in>

> The point is about \\W.  \\W matches any character that is not a
> word-constituent.  I want `:-)' to become a smile if it is followed by any
> of `\\W' but not ')'.  If I put it as "\\(:-?)\\)[^)]", then even strings
> like "smile_within:-)strings" also get smileys.  So I am looking for a way
> to specify "characters in \\W but no ')' in the language of regexps".

Oh, I see. I can't find any way to do it. You can perhaps build a larger
[^...] but that is not exactly what you want. BTW the reg exps in perl is a
bit stronger and I believe things like what you want can be done there.

Re: smiley regexp problem

[Stefan Monnier]

> The point is about \\W.  \\W matches any character that is not a
> word-constituent.  I want `:-)' to become a smile if it is followed by any
> of `\\W' but not ')'.  If I put it as "\\(:-?)\\)[^)]", then even strings
> like "smile_within:-)strings" also get smileys.  So I am looking for a way
> to specify "characters in \\W but no ')' in the language of regexps".

":-)[^[:word:])]"


        Stefan

Re: smiley regexp problem

[Rajsekar]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> The point is about \\W.  \\W matches any character that is not a
>> word-constituent.  I want `:-)' to become a smile if it is followed by any
>> of `\\W' but not ')'.  If I put it as "\\(:-?)\\)[^)]", then even strings
>> like "smile_within:-)strings" also get smileys.  So I am looking for a way
>> to specify "characters in \\W but no ')' in the language of regexps".
>
> ":-)[^[:word:])]"
>
>
Oh great!
It worked perfect.
Thanks.

-- 
    Rajsekar Manokaran
    IIT Madras