From: Mason Kelsey <masonkelsey@...>
Date: 2009-09-24T11:47:31+09:00
Subject: Re: How do you limit the line length of the output commands? Where is 	pqueue library documented?

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Oh!  This less code to write even if it leans heavily on knowing how to do
regular expressions, which I am still learning.  Very nice.

But you made a minor typo error in your command
puts pq.methods.join(", ").word_wrap
which should have been
puts pq.methods.join(", ").word_wrap(50)
where the 50 is the max. length of the line.

Much thanks,  Good Code!  I tested it for several different lengths.

No Sam

On Wed, Sep 23, 2009 at 10:29 PM, Justin Collins <justincollins@ucla.edu>wrote:

>  Caleb Clausen wrote:
>
>> On 9/23/09, Patrick Okui <pokui@psg.com> wrote:
>>
>>
>>> On 9/24/09 12:59 AM, Mason Kelsey wrote:
>>>
>>>
>>>> First Question: What is an easy way to modify the below puts code to
>>>> control
>>>> line length without truncation?
>>>>
>>>>
>>> [snip]
>>
>>
>>> If that doesn't satisfy you I'd guess you're stuck with stuffing the
>>> methods into the end of a buffer yourself. (sorry this feels more like C
>>> than ruby to this ruby newbie but I can't think of a simpler way)
>>>
>>> buffer = ''
>>> pq.methods.each do |m|
>>>   if buffer.split("\n")[-1].to_s.length + m.length < 60
>>>     buffer << ((buffer.length > 0)? ", #{m}": "#{m}")
>>>   else
>>>     buffer << "\n#{m}"
>>>   end
>>> end
>>>
>>> puts buffer
>>>
>>>
>>
>> There's a way to do this using Regexp and gsub, but I almost always
>> mess it up when I try to code it off the top of my head. It seems to
>> be difficult enough that its actually better to do it like you have
>> above, even tho the regexp version is only like 2 lines
>>
>
> This is a pretty decent one I've been using:
>
> class String
>       def word_wrap length
>               self.gsub(/([^\r\n\n\s\Z]{#{length}})/, "\\1
> ").gsub(/(.{1,#{length}})(\r\n|\n|\s+|\Z)/, "\\1\n")
>       end
> end
>
> puts pq.methods.join(", ").word_wrap
>
>
> -Justin
>
>

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