[ANN] hpricot 0.5 -- a fast, forgiving HTML reader

[_why]

Hi, here's Hpricot 0.5.

gem install hpricot --source http://code.whytheluckystiff.net

Hpricot reads HTML pages and works hard to fix them up and give you
everything you need to wind your way around them and hack them up!
Inspired by John Resig's JQuery and Tanaka Akira's HTree.

* Hpricot is standalone. It's dependant on no other libs, just
Ruby.
* Hpricot is fast, its parser is written in C with help of the
wonderful Ragel state machine compiler.
* However, Hpricot also works hard to fix up HTML and pays a small
penalty to get it right.
* How hard does Hpricot work? My rule is: if Firefox parses it,
Hpricot should too.

This release has a number of really nice features. The new
`to_original_html` method will try to preserve as much of the
original HTML as possible (including its mistakes) while still
merging in your changes. Also, you can test text nodes with syntax
like: `//a[text()='Click Me!']`.

Should appear on Rubyforge soon enough. Thank you to all the
ticketeers and patchistadores out there, especially Leslie Wu who's
been punching that commit button like she's doin the turtle trap!!

_why

 

[bbiker]

Hi, here's Hpricot 0.5.

gem install hpricot --sourcehttp://code.whytheluckystiff.net

Hpricot reads HTML pages and works hard to fix them up and give you
everything you need to wind your way around them and hack them up!
Inspired by John Resig's JQuery and Tanaka Akira's HTree.

* Hpricot is standalone. It's dependant on no other libs, just
Ruby.
* Hpricot is fast, its parser is written in C with help of the
wonderful Ragel state machine compiler.
* However, Hpricot also works hard to fix up HTML and pays a small
penalty to get it right.
* How hard does Hpricot work? My rule is: if Firefox parses it,
Hpricot should too.

This release has a number of really nice features. The new
`to_original_html` method will try to preserve as much of the
original HTML as possible (including its mistakes) while still
merging in your changes. Also, you can test text nodes with syntax
like: `//a[text()='Click Me!']`.

Should appear on Rubyforge soon enough. Thank you to all the
ticketeers and patchistadores out there, especially Leslie Wu who's
been punching that commit button like she's doin the turtle trap!!

_why

just downloaded hpricot ... no warnings when I run my script.

however, the Rdoc flag is still turned off .. documentation please!!!

C:\..\Owner>gem query -n hpricot -r -s http://
code.whytheluckystiff.net"

*** REMOTE GEMS ***
Need to update 2 gems from http://code.whytheluckystiff.net
...
complete

hpricot (0.5, 0.4.99, 0.4.92, 0.4.90, 0.4.86, 0.4.76, 0.4.59, 0.4.52,
0.4.47, 0.4.43,
0.4, 0.3.32, 0.3, 0.2, 0.1)
a swift, liberal HTML parser with a fantastic library

C:\..\Owner>gem install hpricot --source http://
code.whytheluckystiff.net
Select which gem to install for your platform (i386-mswin32)
1. hpricot 0.5 (ruby)
2. hpricot 0.5 (mswin32)
3. hpricot 0.5 (ruby)
4. hpricot 0.5 (mswin32)
5. Skip this gem
6. Cancel installation

2

Successfully installed hpricot-0.5-mswin32

C:\Documents and Settings\Owner>

RubyGems Documentation Index

hpricot 0.4 [rdoc] [www]
a swift, liberal HTML parser with a fantastic library


hpricot 0.4.99 [rdoc] [www]
a swift, liberal HTML parser with a fantastic library


hpricot 0.5 [rdoc] [www]
a swift, liberal HTML parser with a fantastic library

in all of the listing, only "www" has an active link.

 

[_why]

however, the Rdoc flag is still turned off .. documentation please!!!
[...]
Successfully installed hpricot-0.5-mswin32

Oh, I see. This was for the windows one. Well, in the meantime you
can also use: http://code.whytheluckystiff.net/doc/hpricot/. Or
I've updated the gem on my personal repository.

_why

 

[Ron M]

This script:
=================
%W[rubygems open-uri hpricot].each{|x| require x}
Hpricot.parse(open("http://www.opentable.com/rest_profile.aspx?rid=3292").read)
=================

crashes hpricot for me with this error:

=================
/usr/local/lib/ruby/gems/1.8/gems/hpricot-0.5/lib/hpricot/parse.rb:44:in `scan': ran out of buffer space on element <input>, starting on line 23. (Hpricot:arseError)
from /usr/local/lib/ruby/gems/1.8/gems/hpricot-0.5/lib/hpricot/parse.rb:44:in `make'
from /usr/local/lib/ruby/gems/1.8/gems/hpricot-0.5/lib/hpricot/parse.rb:15:in `parse'
from (irb):3:in `irb_binding'
from /usr/local/lib/ruby/1.8/irb/workspace.rb:52:in `irb_binding'
from /usr/local/lib/ruby/1.8/irb/workspace.rb:52
=================

It's probably because there's some insanely large attribute on one of
the HTML elements.

<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE"
valuea="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/>


============

Could hpricot die more gracefully and still parse the document
leaving only that element invalid when it sees such very large
attributes?

 

[Tim Hunter]

Could hpricot die more gracefully and still parse the document
leaving only that element invalid when it sees such very large
attributes?

What did why say when you posted this problem to the hpricot mailing list?

http://code.whytheluckystiff.net/hpricot/

 

[_why]

/usr/local/lib/ruby/gems/1.8/gems/hpricot-0.5/lib/hpricot/parse.rb:44:in `scan': ran out of buffer space on element <input>, starting on line 23. (Hpricot:arseError)

Oh, you can increase the buffer size with: Hpricot.buffer_size = 262144

_why