Mathing space in regexp

ruby-talk
1

Hi,

If I use the option x in a regular expression, spaces are eliminated
from regexps (like /1 2 3 4 5/x). If I do so, how can I math spaces
without mathing \n?

Thanks,
Maurício

2

You can escape a space in the regular expression to indicate that it is
being used for matching rather than layout e.g.

mike@ratdog rh8.0 $ irb
irb(main):001:0> ‘12345’ =~ /1 2 3 4 5/x
0
irb(main):002:0> ‘123 45’ =~ /1 2 3 4 5/x
nil
irb(main):003:0> ‘123 45’ =~ /1 2 3\ 4 5/x
0

Hope this helps,

Mike

···

In article aprtfq$nnl$1@main.gmane.org, Maurício wrote:

Hi,

If I use the option x in a regular expression, spaces are eliminated
from regexps (like /1 2 3 4 5/x). If I do so, how can I math spaces
without mathing \n?

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