From: Rob Biedenharn <Rob@...>
Date: 2008-04-10T03:23:10+09:00
Subject: Re: capitalizing words


On Apr 9, 2008, at 2:04 PM, Peter Bailey wrote:
> Rob Biedenharn wrote:
>> On Apr 9, 2008, at 8:24 AM, Peter Bailey wrote:
>>>>  end
>>>>
>>>> Rob Biedenharn    http://agileconsultingllc.com
>>>> Rob@AgileConsultingLLC.com
>>>
>>> Thanks, Rob. This works beautifully, except that I need that last
>>> </emph> in my output. It's being stripped with your code. I don't  
>>> see
>>> why, because it's just your $3, isn't it?
>>> --  
>>> Posted via http://www.ruby-forum.com/.
>>
>> You said to Todd:
>> The original text is just:
>> <row><entry><text><emph face="b">THE QUICK BROWN FOX JUMPED OVER THE
>> LAZY DOG.<\/emph>/
>>
>> I assumed that the "<\/emph>/" part was a cut-n-paste of a regexp for
>> the email (which is one reason that I change from // to %r{}
>> construction of the Regexp so the / wouldn't have to be escaped.  You
>> may have to change the second group to (.*?) [reluctant match rather
>> than greedy match] or adjust the third group to exactly match your
>> input.
>>
>> -Rob
>>
>> Rob Biedenharn    http://agileconsultingllc.com
>> Rob@AgileConsultingLLC.com
>
> Rob,
> So, here's my original file:
> <row><entry><text><emph face="b">THE QUICK BROWN FOX JUMPED OVER THE
> LAZY DOG.</emph>
OK, change this to a regexp:
1. surround with the regexp literal bits
%r{<row><entry><text><emph face="b">THE QUICK BROWN FOX JUMPED OVER THE
LAZY DOG.</emph>}m

2. add the grouping ()'s
%r{(<row><entry><text><emph face="b">)(THE QUICK BROWN FOX JUMPED OVER  
THE
LAZY DOG.)(</emph>)}m

3. replace text with wildcards .* or .*?
%r{(<row><entry><text><emph face="b">)(.*?)(</emph>)}m

4. (optional?) add anchor ^
%r{^(<row><entry><text><emph face="b">)(.*?)(</emph>)}m

I'm assuming that is not the WHOLE file since the <row><entry><text>  
tags are not closed.  It it quite likely that .* is slurping a lot  
more that you think so that's why I've change this to .*? which  
matches as little as possible while continuing to succeed.

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com

> Here's my code, from you:
> Dir.chdir("C:/users/pb4072/documents") do |d|
> file = File.read("test1.txt")
> output = file.gsub(%r{^(<row><entry><text><emph
> face="b">)(.*)(<\/emph>)}m) do |match|
> "#{$1}#{$2.gsub(%r{\b\w+\b}){|w|w.capitalize}}#{$3}"
> end
>   File.open("test1.txt", "w") { |f| f.write output }
> end
>
> Here's what I get. It works great, but, I don't understand why the $3
> text is simply blown away.
> <row><entry><text><emph face="b">The Quick Brown Fox Jumped Over The
> Lazy Dog.
>
> Thanks,
> Peter