+1  A: 
Vítor Baptista  2010-04-12 05:10:30
+3  A: 

It's because of the interpolation of special variables. \+ will be replaced with "the text matched by the highest-numbered capturing group that actually participated in the match" (See the Special Variables section on http://www.regular-expressions.info/ruby.html)

The block syntax is in fact a fix for this, well done.

miorel  2010-04-12 05:14:38

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