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comp.lang.ruby

problem with regexp?

Wmute

2/3/2006 1:37:00 PM

Hello,

I am trying to replace some old Perl scripts with Ruby, however

i get stuck with this line

>>

if line =~/($time)/ && line =~/(xxx)/

<<
$time is a global variable containing the current day/month, but it
wont match!
what am i doing wrong?


I am new to Ruby, so please dont be offended.
3 Answers

Marcin Mielzynski

2/3/2006 2:09:00 PM

0

Wmute wrote:

>
> if line =~/($time)/ && line =~/(xxx)/
>

>
in Ruby $.. wont reference a variable like in perl, use #{...}


if line =~ /#{time}/ && line =~ /(xxx)/ ....

in case of /#{(time)}/ regexp will be compiled each time...

so you may consider:

r = /#{time}/ , or:
r = Regexp.new(time)


....
probably some loop
....

if line =~ r && ...

lopex

Michael Ulm

2/3/2006 2:16:00 PM

0

Wmute wrote:

> Hello,
>
> I am trying to replace some old Perl scripts with Ruby, however
>
> i get stuck with this line
>
>
>
> if line =~/($time)/ && line =~/(xxx)/

You probably want

if line =~ /#{$time}/ and line =~ /#{xxx}/

(assuming there is a variable called xxx).

HTH

Michael

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Michael Ulm
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Wmute

2/3/2006 2:20:00 PM

0

Thanks! problem solved!