[ic] problem with new filter

Eros Shop info at eros-shop.co.uk
Fri May 7 15:55:49 EDT 2004

At 20:22 07/05/2004, you wrote:
>At 07:22 PM 5/7/2004 +0100, you wrote:
>>Hi everyone,
>>I'm having a spot of bother whilst trying to write a new [filter] op 
>>that's supposed to return anything before and including the first "." 
>>(dot) in the string passed to it.
>>[filter op=sentence]This is sentence one. This is sentence two.[/filter]
>>returns:  "This is sentence one."
>>Following the working example in the online docs, I've put this in my 
>>interchange.cfg and tried to restart IC.
>>GlobalSub <<EOR
>>sub new_filter {
>>     BEGIN {
>>         package Vend::Interpolate;
>>         $Filter{sentence} = sub {
>>                             my $val = shift;
>>                             $val =~ m/^*\.//o;
>>                             return $val;
>>                             };
>>     }
>>Once the above is added IC refuses to start up giving the following error:
>>Starting Interchange: Bad GlobalSub 'new_filter': Bareword "o" not 
>>allowed while "strict subs" in use at (eval 124) line 6, <GLOBAL> line 17.
>>BEGIN not safe after errors--compilation aborted at (eval 124) line 9, 
>><GLOBAL> line 17.
>>In line 17 of the configuration file '/etc/interchange.cfg':
>>GlobalSub <<EOR
>>The original example for reverse I got from 
>>http://www.icdevgroup.org/i/dev/docfly.html?mv_arg=ictags04%2e28 is fine 
>>and IC loads up, so it must be my code that's at fault.
>>Sadly my limited Perl knowledge doesn't permit me to understand the error 
>>to know what I'm doing wrong here.
>>I'd be very grateful if someone could point out my silly mistake(s) :)
>>Many thanks
>I'm no regex guru, but this may work better:
>GlobalSub <<EOR
>sub new_filter {
>     BEGIN {
>         package Vend::Interpolate;
>         $Filter{sentence} = sub {
>                             my $val = shift;
>                             $val =~ s/\..*$/\./;
>                             return $val;
>                             };
>     }
>Also, if you wrote this on a Windows box and uploaded it, you'll want to 
>strip out any carriage returns from the file, as they could cause a problem:
>         perl -i -p -e 's/\r//g' interchange.cfg
>- Ed

Hi Ed,

Many thanks for your reply.

It's a definite improvement, but it's still not quite right......

The following appears to be matching words that have dots in them instead 
of matching the dots at the end of a sentence:

$val =~ s/\..*$/\./;

eg. "This handy 1.5ml single use sachet is......."  gets truncated/matched 
to: "This handy 1."

I've tried changing the pattern match to the following to allow for a space 
but this seems to return multiple matches and makes the situation worse :(

$val =~ s/\. .*$/\./;

I feel I should be matching from the start of the string and dumping 
anything after the first ". " (dot<space>). Perhaps with split() ?

eg.   ($val, $crap) = split (/. /, $val);

Many thanks


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