Ruby's regexp: Is there no opposite of =~?

ruby-talk
1

Hi,

Searching through “Programming Ruby” I found the Perl-like “=~” for
matching strings against regexps but I cannot find the opposite
"dont match" operator ( “!~” in Perl ).

Is there any aequivalent ?

Kind regards,
Meino

2

Yes… it’s !~ :slight_smile:

(Actually, a !~ b is the same as !(a =~ b), i.e. there is no !~ method as
such; in the same way that a += b is expanded to a = a + b and so there is
no += operator as such)

···

On Sun, Aug 17, 2003 at 07:46:33PM +0900, Meino Christian Cramer wrote:

Hi,

Searching through “Programming Ruby” I found the Perl-like “=~” for
matching strings against regexps but I cannot find the opposite
“dont match” operator ( “!~” in Perl ).

Is there any aequivalent ?

3

batsman@tux-chan:/tmp$ ruby
p “aabbaasdff” !~ /bb/
^D
false

···

On Sun, Aug 17, 2003 at 07:46:33PM +0900, Meino Christian Cramer wrote:

Hi,

Searching through “Programming Ruby” I found the Perl-like “=~” for
matching strings against regexps but I cannot find the opposite
“dont match” operator ( “!~” in Perl ).

Is there any aequivalent ?

–
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