RE: select case or switch statement

Omega -1911 wrote: : I am still trying to grasp using case statements... Since I am : new to this, I had a question as to the speed of using CASE. I : currently have a script that has 91 if/elsif/else statements in : total. Will switching to using CASE improve the execut

Re: select case or switch statement

AIL PROTECTED]> wrote: > On Sat, 11 Jun 2005, Jeff 'japhy' Pinyan wrote: > > > On Jun 11, Ron Smith said: > > > > > Does Perl have the equivalent of a case statement or a switch > > > statement. I'm trying to avoid a bunch of "if-then&quo

Re: select case or switch statement

On Sat, 11 Jun 2005, Jeff 'japhy' Pinyan wrote: > On Jun 11, Ron Smith said: > > > Does Perl have the equivalent of a case statement or a switch > > statement. I'm trying to avoid a bunch of "if-then" statements. > > I'm seeing posts regardin

Re: select case or switch statement

On Jun 11, Ron Smith said: Does Perl have the equivalent of a case statement or a switch statement. I'm trying to avoid a bunch of "if-then" statements. I'm seeing posts regarding "use switch", but I want to make sure it's not a deprecated practice. I

Re: select case or switch statement

I used 'perldoc -f switch' and nothing came up. I've done what you suggested and I'm on my way. Thank you very much. R "Ing. Branislav Gerzo" <[EMAIL PROTECTED]> wrote: Ron Smith [RS], on Saturday, June 11, 2005 at 14:11 (-0700 (PDT)) has on mind: RS> Does Perl have the equivalent of a case st

Re: select case or switch statement

Ron Smith [RS], on Saturday, June 11, 2005 at 14:11 (-0700 (PDT)) has on mind: RS> Does Perl have the equivalent of a case statement or a switch RS> statement. I'm trying to avoid a bunch of "if-then" statements. RS> I'm seeing posts regarding "use switch", but I want to make sure RS> it's not a d

select case or switch statement

Does Perl have the equivalent of a case statement or a switch statement. I'm trying to avoid a bunch of "if-then" statements. I'm seeing posts regarding "use switch", but I want to make sure it's not a deprecated practice. I'm using Perl -v 5.8.0. my

Re: last question on the switch statement ....

David Gilden wrote: Dear fellow PERL coders..., Hello, What is the "&& do" part of the code doing, i.e. I am looking to understand the syntax, the example was found in perl beginners archive, from some else's post... && is the logical 'and' operator. If the expression on its left is evaluated as

Re: last question on the switch statement ....

Sorry for my English :) '&&' is a boolean operator. It returns TRUE when both statemets are ture, and false on other cases. But if the first statement is false, next statement will not be executed. For example: $hash{key} doesn't exists - if(exists($hash{key}) && $hash{key} =~ /\d+/); Is $^W is tru

last question on the switch statement ....

Dear fellow PERL coders..., What is the "&& do" part of the code doing, i.e. I am looking to understand the syntax, the example was found in perl beginners archive, from some else's post... Thanks, Dave (kora musician / audiophile / webmaster @ www.coraconnection.com / Ft. Worth, TX, USA) f

Re: Does the SWITCH statement have a default?

case 4 { print "\n Four" } case 6 { print "\n Six" } else { print "\nOthers" } } } Josimar Nunes de Oliveira SP/Brasil - Original Message - From: <[EMAIL PROTECTED]> To: "Perl Beginners List" Sent: Thursday, J

Re: Does the SWITCH statement have a default?

>Is there a correct way to define a default case within a SWITCH? I tried with >the bottom case, but that errors with: >Quantifier follows nothing before HERE mark in regex m/* << HERE / at ./ctest line 251. >SWITCH: >{ > $field =~ /^CR\d{0,7}$/ && do >{ > $openCRs++; >

Does the SWITCH statement have a default?

Hi, Is there a correct way to define a default case within a SWITCH? I tried with the bottom case, but that errors with: Quantifier follows nothing before HERE mark in regex m/* << HERE / at ./ctest line 251. SWITCH: { $field =~ /^CR\d{0,7}$/ && do { $openCRs++; pr

Re: built-in switch statement?

Hi, Larry Wall mentions this in the Apocalypse 4 document for Perl 6: "Another argument against having a switch statement in Perl 6 is that we never had it in the first five versions of Perl. But it would be incorrect to say that we didn't miss it. What actually happened was that

built-in switch statement?

I'm just wondering what is the reason that switch is not built-in in perl... I can do a switch statement by using the Switch module, but I'm wondering why it's not already builtin with the interpreter. thanks __ Do You Yahoo!

Re: switch statement

I just benchmarked Filter, and it was worse than 100 times slower In a message dated 2/19/2004 6:53:56 PM Eastern Standard Time, [EMAIL PROTECTED] writes: last time i benchmark a source filter, it's about 100 times slower. has that change since v5.8? -Will ---

Re: switch statement

Anthony Vanelverdinghe wrote: > > Hi Hello, > Could anyone please tell me what's wrong with the following "program"? > The compiler gives errors in the switch statement. > > %commands=('v',0,'w',1,'t',2,'/pattern/&

Re: switch statement

Rob Dixon wrote: > <[EMAIL PROTECTED]> wrote: >> >> The Advantage is you get to use the switch statement. The disadvantage is >> your code will run extraordinarily slow because the Switch module uses a >> run time Filter. In short: isn't an is-elsif-else

Re: switch statement

On Feb 19, 2004, at 5:21 PM, Paul Johnson wrote: The problem is that Switch.pm is a source filter, which is effectively an extra level of processing before compilation. Personally, I wouldn't use a source filter for anything I cared about. The docs for Switch state: There are undoubtedly serio

Re: switch statement

On Thu, Feb 19, 2004 at 10:46:33PM -, Rob Dixon wrote: > <[EMAIL PROTECTED]> wrote: > > > > The Advantage is you get to use the switch statement. The disadvantage is > > your code will run extraordinarily slow because the Switch module uses a run time > > Fi

Re: switch statement

This: if ($op == 0) {} elsif ($op == 1) {} elsif ($op == 2) {} elsif ($op == 3) {} elsif ($op == 4) {} elsif ($op == 5) {} is faster than this: use Switch; switch ($op) { case 0 { last } case 1 { last } case 2 { last } case 3 { last } case 4 { last } case 5 { last } } B

Re: switch statement

<[EMAIL PROTECTED]> wrote: > > The Advantage is you get to use the switch statement. The disadvantage is > your code will run extraordinarily slow because the Switch module uses a run time > Filter. In short: isn't an is-elsif-else statement enough?? Are you saying th

Re: switch statement

te: > > > Hi > > Howdy. > > > Could anyone please tell me what's wrong with the following "program"? > > I'll try. > > > The compiler gives errors in the switch statement. > > Perl doesn't have a native switch statement, b

Re: switch statement

The Advantage is you get to use the switch statement. The disadvantage is your code will run extraordinarily slow because the Switch module uses a run time Filter. In short: isn't an is-elsif-else statement enough?? In a message dated 2/19/2004 4:40:56 PM Eastern Standard Time, [EMAIL PROT

Re: switch statement

--As of Thursday, February 19, 2004 10:29 PM +0100, Anthony Vanelverdinghe is alleged to have said: Didn't know it wasn't in Perl, but I've just discovered it's possible with some file called "Switch.pm" --As for the rest, it is mine. You mean the 'Switch' module. (Sorry, I should have mentione

Re: switch statement

On Feb 19, 2004, at 3:14 PM, Anthony Vanelverdinghe wrote: Hi Howdy. Could anyone please tell me what's wrong with the following "program"? I'll try. The compiler gives errors in the switch statement. Perl doesn't have a native switch statement, but it is included

Re: switch statement

Didn't know it wasn't in Perl, but I've just discovered it's possible with some file called "Switch.pm" From: Daniel Staal <[EMAIL PROTECTED]> Reply-To: Perl Beginners <[EMAIL PROTECTED]> To: Perl Beginners <[EMAIL PROTECTED]> Subject: Re: switch

Re: switch statement

--As of Thursday, February 19, 2004 10:14 PM +0100, Anthony Vanelverdinghe is alleged to have said: Could anyone please tell me what's wrong with the following "program"? The compiler gives errors in the switch statement. --As for the rest, it is mine. You mean, besides the

switch statement

Hi Could anyone please tell me what's wrong with the following "program"? The compiler gives errors in the switch statement. Thx!! Anthony %commands=('v',0,'w',1,'t',2,'/pattern/',3,'s',4,'x',5); $end = 0; while (!end