Comments on: using negate in ruby regex http://disjointthoughts.com/2007/03/02/using-negate-in-ruby-regex/ Fri, 06 Jan 2012 14:29:47 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Sri http://disjointthoughts.com/2007/03/02/using-negate-in-ruby-regex/comment-page-1/#comment-10033 Sri Thu, 01 Oct 2009 14:41:58 +0000 http://disjointthoughts.com/?p=143#comment-10033 Hi, The post is misleading. The [^string] is not working as a negate in ruby 1.8.6. It's simply searching for a string with a '^' (literal). Hi,
The post is misleading. The [^string] is not working as a negate in ruby 1.8.6. It’s simply searching for a string with a ‘^’ (literal).

]]> By: Ben http://disjointthoughts.com/2007/03/02/using-negate-in-ruby-regex/comment-page-1/#comment-311 Ben Mon, 30 Apr 2007 23:25:19 +0000 http://disjointthoughts.com/?p=143#comment-311 I think if you read the original post http://disjointthoughts.com/?p=143 Eric you might find the answer you're looking for. I think if you read the original post http://disjointthoughts.com/?p=143 Eric you might find the answer you’re looking for.

]]> By: Eric http://disjointthoughts.com/2007/03/02/using-negate-in-ruby-regex/comment-page-1/#comment-307 Eric Mon, 30 Apr 2007 09:59:01 +0000 http://disjointthoughts.com/?p=143#comment-307 The carrot sign doesn't mean negate.. I'm fairly sure it means the line begins with and the $ sign means end. irb(main):010:0> test = 'line test' => "line test" irb(main):011:0> test.match(/^line/) => # irb(main):012:0> irb(main):013:0> test.match(/test$/) => # I'm trying to find out how to negate a regexp right now. I use these w/ grep and just negate grep (-v), but that doesn't help a bit w/ ruby! Best of luck! The carrot sign doesn’t mean negate.. I’m fairly sure it means the line begins with and the $ sign means end.

irb(main):010:0> test = ‘line test’
=> “line test”
irb(main):011:0> test.match(/^line/)
=> #
irb(main):012:0>
irb(main):013:0> test.match(/test$/)
=> #

I’m trying to find out how to negate a regexp right now. I use these w/ grep and just negate grep (-v), but that doesn’t help a bit w/ ruby! Best of luck!

]]> By: James http://disjointthoughts.com/2007/03/02/using-negate-in-ruby-regex/comment-page-1/#comment-146 James Sat, 03 Mar 2007 01:09:40 +0000 http://disjointthoughts.com/?p=143#comment-146 Regular expressions remain for me a dark science. Certain things eventually stick in my head after repeated use, while others require me to go Googling. The ^ thing was a recent memory acquisition for me. One nice thing is that there are many regex help pages on the Web. But beware; many of these are geared for perl, and there are a few differences from Ruby. Regular expressions remain for me a dark science. Certain things eventually stick in my head after repeated use, while others require me to go Googling.

The ^ thing was a recent memory acquisition for me.

One nice thing is that there are many regex help pages on the Web. But beware; many of these are geared for perl, and there are a few differences from Ruby.

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