Comments on: Regular Expressions in Ruby

By: Simons Blog

Simons Blog — Tue, 24 Nov 2009 17:54:11 +0000

bwin-Mails parsen, diesmal mit Ruby…

Wie man bwin-Mails mit PHP parsed hatte ich ja schonmal beschrieben, jedoch habe ich das ganze nun nochmal in Ruby und mit IMAP statt POP3 wiederholt. Nun kann ich jede ungelesene Mail (ohne den Flag "Seen") abrufen und muss mir keine Sorgen …

By: Ramzi Ferchichi

Ramzi Ferchichi — Wed, 11 Jun 2008 09:04:11 +0000

On the subject of “preg_match_all vs. String#scan”, to achieve the same nesting of values in the $matches array of preg_match_all, add the PREG_SET_ORDER flag.

preg_match_all(‘/([a-z0-9_.-]+)@([a-z0-9-]+)\.[a-z.]+/i’, $string, $matches, PREG_SET_ORDER);

var_export($matches);
// => array(
// array(‘joe@example.com’, ‘joe’, ‘example’),
// array(‘walter@example.org’, ‘walter’, ‘example’)
// )

By: Ryan

Ryan — Mon, 31 Mar 2008 23:16:05 +0000

It is worth adding that you will need to escape a different set of characters on ruby than in php. For instance the curly braces ‘{‘, ‘}’, and ‘#’ need to be escaped in ruby because they have special meaning in strings.

By: junaid

junaid — Wed, 19 Mar 2008 06:15:58 +0000

We can achieve preg_replace_callback functionality in ruby this way
def my_test_method(matches)
return “_pk”
end
my_string = ‘joe@example@example.com; walter@example.org‘
str = my_string.gsub(/@([a-z0-9-]+)/){ |match| my_test_method(match) }
puts str

Thanks for nice article. Its really very helpful to me.
Regards
Junaid malik.

By: junaid

junaid — Wed, 19 Mar 2008 05:00:01 +0000

Nice article. What is the alternative of preg_replace_callback in ruby?

By: Derek

Derek — Wed, 23 Jan 2008 23:49:53 +0000

Markus: Thanks, and fixed

By: Markus

Markus — Wed, 23 Jan 2008 09:50:21 +0000

You said “by enclosing the pattern in backslashes”, but I think you meant the forward slash in this case?

By: Php Developer

Php Developer — Fri, 18 Jan 2008 08:31:00 +0000

Excellent rails regexp tutorial. YOu can find more about regexp here

http://www.regular-expressions.info/