From: dblack@...
Date: 2007-06-28T00:28:36+09:00
Subject: Re: RegExp & File read help

Hi --

On Wed, 27 Jun 2007, Axel Etzold wrote:

> Hi Don,
>
>> I am sure there is probably a
>> way to do this using an xml parsing library, but I thought it might
>> be just as easy to do so with regular expressions.
>
> Hpricot is a good choice.
>>
>> Where I am getting stuck is in the next code fragment, in which I am
>> testing each line to see if there is a match. There should be as the
>> string I used above for testing was pulled directly from one line of
>> the file. Unfortunately, I get an error and no -matches.
>>
>> _________
>> regexp = Regexp.new(/<Font-family codeSet=\"\w*\" fontId=\"\d*\">(\w*)
>
> In the regexp, you need to escape the minus sign also, otherwise,
> it is interpreted as a range of signs, i.e. f-t =['f','g',...,'t']

Only inside a character class.  Otherwise it's just a minus sign:

irb(main):017:0> Regexp.new(/a-z/).match("a")
=> nil
irb(main):018:0> Regexp.new(/a-z/).match("literal a-z")
=> #<MatchData:0x312ce8>


David

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