Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: How do I stop this from removing spaces?

by chuckbutler (Vicar)
on Jun 25, 2010 at 01:58 UTC ( #846436=note: print w/ replies, xml ) Need Help??


in reply to How do I stop this from removing spaces?

There is an implicit join of the list being done when the regular expression is being compiled. This is using the $", dollar-double-quote, variable as the separator character, which defaults to a space. So, the character class that is used in the substitution contains a space, and therefor spaces are removed. Better for oneself to do the join:

use strict; use warnings; use re 'debug'; # shows whats-what my $id='TEST TEST'; print "$id\n"; my @filename_filter=('*','|','<','>','?','/'); my $filename_filter_joined = join '',@filename_filter; #empty separator character $id =~ s/[$filename_filter_joined]//g; print "$id\n"; __END__ ~~Output~~ TEST TEST Compiling REx "[*|<>?/]" Final program: 1: ANYOF[*/<>?|][] (12) 12: END (0) stclass ANYOF[*/<>?|][] minlen 1 Matching REx "[*|<>?/]" against "TEST TEST" Matching stclass ANYOF[*/<>?|][] against "TEST TEST" (9 chars) Contradicts stclass... [regexec_flags] Match failed TEST TEST Freeing REx: "[*|<>?/]"

Good luck. -c


Comment on Re: How do I stop this from removing spaces?
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://846436]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (7)
As of 2015-07-28 05:47 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (252 votes), past polls