string matching with extented ASCII characters

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Dear Perl Monks, I know that you do not like lazy person and use expertise for simple stuff. Since I am a newbie and try to accomplish a task that is quite advance, if you do not mind, I would like get a help from you again. I am trying to read a bardcode from a serail port. However I am getting nonprinting extented ascii character and try to replace them with meaningful one eg. "500039Дз03363Дз" replace "Дз" with "4". As you can imagine I could not figure it out. I am using a below command to do it, but it cannot recognize "Дз" that is Chr 180. $Buffer =~ s/(char 180)/4/eg ; Regards,

Comment on string matching with extented ASCII characters

Replies are listed 'Best First'.
Re: string matching with extented ASCII characters by zakb (Pilgrim) on Jun 11, 2003 at 08:40 UTC
Well, if that "Дз" really is chr(180), then you can find it like this: `$Buffer =~ s/\xb4/4/g;` \x takes a hex code. See perlretut or perlre.	[reply] [d/l]
Re: Re: string matching with extented ASCII characters by Anonymous Monk on Jun 11, 2003 at 08:45 UTC
thanks zakb, actually the char(180) was not printed write in the message but \xb4 simply solved the issue. Thanks again.	[reply]
Re: string matching with extented ASCII characters by CountZero (Bishop) on Jun 11, 2003 at 09:43 UTC
Just being curious, why would `s/,,з/4/g` not work? CountZero "If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law	[reply] [d/l]
Re: Re: string matching with extented ASCII characters by zakb (Pilgrim) on Jun 11, 2003 at 09:45 UTC
Because `,,з` is not chr(180). Update: see here.	[reply] [d/l]