From: Ross Shaw <rshaw1961@...>
Date: 2001-11-30T07:15:26+09:00
Subject: [ruby-talk:26975] Re: How to match '|' but not '\|'

Doh,

I've got this all wrong - just goes to show you need a compiler not a faulty
memory. It should be something closer to this (although I suspect this is
still wrong - I will check it again tonight). Hopefully there is enough here
for someone to get the idea and set me straight.

def test_string_split
     actual = 'Split|me|up\|into|four'.split (/??????/)
     expected = %w[Split  me  up\|into   four]
     assert_equals(expected, actual)
end

Too early in the morning and in too much of a rush.

Ross

> I'm a bit of a nuby to regular expressions so I need a little assistance.
>
> I have a string that I want to split into separate words that are
separated
> by the pipe character '|'. However I do NOT want to split at points where
> the pipe is preceded by a backslash '\|'.
>
> Here's a quick unit test. Can you fill in the missing regexp?
>
> def test_string_split
>     actual = 'Split|me|up\|into|four' (/??????/)
>     expected = %w[Split  me  up\into   four]
>     assert_equals(expected, actual)
> end
>
> Thanks
>
> Ross
>
>
>
>