regex - Scan String with Ruby Regular Expression -


i attempting scan following string following regular expression:

 text = %q{akdce alaska district court cm/ecfalmdce             alabama middle district courtalndce           }   p courts = text.scan(/(ecf\w+)|(court\w+)/)

ideally, want scan text , pull text 'ecfalmdce' , 'courtalndce' regex using, trying want string starts either court or ecf followed random string of characters.

the array being returned is:

 [["ecfalmdce", nil], [nil, "courtalndce"]]

what deal nil's, have more efficient way of writing regex, , have link further documentation on match groups?

your regex captures differently ecf , court. can create non-capture groups ?: 

text.scan(/(?:ecf|court)\w+/) # => ["ecfalmdce", "courtalndce"]

edit

about non-capture groups: can use them create patterns using parenthesis without capturing pattern.

they're patterns such (?:pattern)

you can find more information on regular expressions @ http://www.regular-expressions.info/refadv.html


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