From: "Stephan Kämper" <Stephan.Kaemper@...>
Date: 2004-11-10T07:23:34+09:00
Subject: Re: [ANN] RedCloth 3.0.0 -- Textile and Markdown Elope!

Hi,

why the lucky stiff wrote:
> RedCloth 3 is out.  You know?  RedCloth?  Perhaps you've heard of it. Or 

Yes. I use it a lot.

> perhaps you've used Textile, the simple text markup it parses.  Okay, 
> well then: RedCloth turns Textile markup into HTML.
> 
>   <http://www.whytheluckystiff.net/ruby/redcloth/>
> 
> But RedCloth's gaze has fallen upon new text formats to devour.  The new 
> RedCloth 3 adds preliminary support for Markdown.  This means that you 
> can intermingle Textile and Markdown together!
> 

However I ran into a stragne, um ...ommm, behaviour, I don't understand.
Perhaps something is wrong with my RedCloth?

When I run this code,

--- code starts here ---
require 'redcloth'
puts "Running RedCloth #{RedCloth::VERSION}"
f = 'test.rdcl'
puts "*"*80, f, "*"*80
rc = RedCloth.new( File.read( f ) )
puts rc.to_html
File.open( 'rc.html', 'wb'){ | file | file.puts rc.to_html }
--- code ends here ---

.... I get that result:

Running RedCloth 3.0.0
********************************************************************************
test.rdcl
********************************************************************************
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:592: 
warning: ambiguous first argument; put parentheses or even spaces
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:802: 
warning: ambiguous first argument; put parentheses or even spaces
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:1001: 
warning: ambiguous first argument; put parentheses or even spaces
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:785: 
warning: method redefined; discarding old inline_markdown_link
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:423: 
warning: instance variable @filter_styles not initialized
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:566:in 
`gsub!': Stack overflow in regexp matcher: /((?:\n*[\# ](?:[^\n]|\n+[\# 
]|\n(?!\n|\Z))+)|(?:\n*[\* ](?:[^\n]|\n+[\* ]|\n(?!\n|\Z))+)|(?:\n*[> 
](?:[^\n]|\n+[> ]|\n(?!\n|\Z))+))|((?:[^\n]+|\n+ +|\n(?![#*\n]|\Z))+)/m 
(RegexpError)
	from 
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:566:in 
`blocks'
	from 
C:/ruby/lib/ruby/gems/1.8/gems/RedCloth-3.0.0/lib/redcloth.rb:276:in 
`to_html'
	from E:/stephan/source/zz_delete-me/rc_3.rb:6


The test file is at the end of the message.

What makes me kind of clueless is this: Whatever I remove, the overflow 
disappears. Even removing a single word (doesn't work with all words 
though...) - overflow's gone.
For example removing 'an ' from the line >>>\t** 
"ImageMagick":http://www.imagemagick.org/ is an OpenSource tool for 
graphics manipulation.<<< will get rid of the overflow. However 
grammatically that's not an option, I think.

This happens on both Linux running Ruby 1.8.2 (preview2) and WinXP 
running the 1-click-installer (1.8.2 too).
Ah well, the behaviour doesn't happen in 2.0.11.

Any help would be greatly appreciated.

Happy rubying

Stephan


--- test.rdcl follows until the end of the message body
h2. Software & Tools

* Programming Languages and Data Formats

	** "Ruby":http://www.ruby-lang.org/en/, is purely object-oriented. If 
offers a flexible Syntax and is easy to learn. Furthermore working with 
it is quite productive.
	** "RedCloth":http://www.whytheluckystiff.net/ruby/redcloth/ is a Ruby 
implementation of 
"Textile":http://www.textism.com/tools/textile/index.html. "Textile is a 
text format. A very simple text format", says _why_the_lucky_stiff 
author of RedCloth. The "RedCloth 
Project":http://rubyforge.org/projects/redcloth/ offers more information 
about it.

* Development Tools

	** "Rake":http://rubyforge.org/projects/rake/ is like "make" -- but 
it's entirely written in Ruby. A rake introduction is on the site of 
"Jim Weirich":http://onestepback.org/articles/buildingwithrake/, author 
of this software
	** "Subversion":http://subversion.tigris.org/ is an Open Source version 
control system. Subversion runs on both, Linux and Windows. 
"TortoiseSVN":http://tortoisesvn.tigris.org/ is a convenient and 
comfortable GUI client for Windows.

* Graphic,Text-/Office-Applications and Utilities

	** "OpenOffice.org":http://www.openoffice.org/

	** "ImageMagick":http://www.imagemagick.org/ is an OpenSource tool for 
graphics manipulation.

	** "Rmagick":http://rmagick.rubyforge.org/

	** "TextPad":http://www.textpad.com/

	** "TotalCommander":http://www.ghisler.com/ -- if you liked the "Norton 
Commander", you'll probably like this tool. It's a files system browser 
offering a lot of additional features

	** "GnuPlot":http://www.gnuplot.info/ you can interactively (and 
automatically) display data plots. To a certain extent data analysis is 
possible, too.<br>

* Operating systems -- in _alphbetical_ order

	** "Linux&trade;":http://www.suse.de/de/

	** "Windows&trade;":http://www.microsoft.com/

h3. Useful stuff