From: Jens Wille <jens.wille@...>
Date: 2008-04-30T23:34:22+09:00
Subject: Re: Search string for occurneces of words stored in array

David A. Black [2008-04-30 16:29]:
>> Jens Wille [2008-04-30 16:18]:
>>> sentence =~ Regexp.union(*words)
>> one addition regarding the regexp, though. in case words may
>> contain special characters, it's safer to escape them first:
>> 
>>   sentence =~ Regexp.union(*words.map { |word| Regexp.escape(word) })
> It actually does it for you:
> 
> Regexp.union("a",".b") => /a|\.b/
ha, didn't know that ;-) thank you!