= metrocot
* http://metrocot.rubygems.org/index.html
== DESCRIPTION:
Metrocot builds on Hpricot to allow scraping of list data from HTML pages
with a minimum of code and page specific information. The specification is
done in a very compact readable format.
== FEATURES/PROBLEMS:
* extremely concise specification via single string parameter (not even a DSL)
* leverages Hpricot to locate reference points in input data
* comes with standard scanners for Time, String, etc
* modular data validation through use of user defined scanners
== SYNOPSIS:
require 'rubygems'
require 'metrocot'
class Event < Object
attr_accessor :starts_at, :title, :description, :url
def initialize( starts_at, title, description, url )
@starts_at = starts_at
@title = title
@description = description
@url = url
end
end
mce_url = "http://www.musiccorner.ca/calendar.html"
mce_doc = open(URI.parse(mce_url)) { |data| Hpricot(data) }
scraper = Metrocot.new(
:starts_at => Metrocot::Scanners::DateTimeScanner,
:description => Metrocot::Scanners::TextScanner,
:title => Metrocot::Scanners::StrippingTextScanner
)
mce_events = scraper.scrape(mce_doc).descend("//div[@id='content']/table/tr/td") { |td|
td.collect( "starts_at=.//h3 ... title=.//h2 ... description=((.//p )+)" ) { |starts_at, title, description| Event.new( starts_at, title, description, mce_url ) }
}.values.flatten
puts "Found #mce_eventsmce_events.size mce events:"
mce_events.each_with_index { |event, event_index|
puts "%3d %20s %s" % [event_index, event.starts_at, event.title]
}
== REQUIREMENTS:
* Hpricot
== INSTALL:
* sudo gem install metrocot
== LICENSE:
(The MIT License)
Copyright (c) 2009 Metro Cascade Media Inc
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
== ALL HAIL WHY
We are like tiny pleasantly chirping hex bugs coding away on the
shoulders of Why so that we can create more, and do more with less
code, not by virtue of any sharpness of mind on our part, or any
other distinction, but because we are carried high and raised up
by his giant size.
* http://metrocot.rubygems.org/index.html
== DESCRIPTION:
Metrocot builds on Hpricot to allow scraping of list data from HTML pages
with a minimum of code and page specific information. The specification is
done in a very compact readable format.
== FEATURES/PROBLEMS:
* extremely concise specification via single string parameter (not even a DSL)
* leverages Hpricot to locate reference points in input data
* comes with standard scanners for Time, String, etc
* modular data validation through use of user defined scanners
== SYNOPSIS:
require 'rubygems'
require 'metrocot'
class Event < Object
attr_accessor :starts_at, :title, :description, :url
def initialize( starts_at, title, description, url )
@starts_at = starts_at
@title = title
@description = description
@url = url
end
end
mce_url = "http://www.musiccorner.ca/calendar.html"
mce_doc = open(URI.parse(mce_url)) { |data| Hpricot(data) }
scraper = Metrocot.new(
:starts_at => Metrocot::Scanners::DateTimeScanner,
:description => Metrocot::Scanners::TextScanner,
:title => Metrocot::Scanners::StrippingTextScanner
)
mce_events = scraper.scrape(mce_doc).descend("//div[@id='content']/table/tr/td") { |td|
td.collect( "starts_at=.//h3 ... title=.//h2 ... description=((.//p )+)" ) { |starts_at, title, description| Event.new( starts_at, title, description, mce_url ) }
}.values.flatten
puts "Found #mce_eventsmce_events.size mce events:"
mce_events.each_with_index { |event, event_index|
puts "%3d %20s %s" % [event_index, event.starts_at, event.title]
}
== REQUIREMENTS:
* Hpricot
== INSTALL:
* sudo gem install metrocot
== LICENSE:
(The MIT License)
Copyright (c) 2009 Metro Cascade Media Inc
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
== ALL HAIL WHY
We are like tiny pleasantly chirping hex bugs coding away on the
shoulders of Why so that we can create more, and do more with less
code, not by virtue of any sharpness of mind on our part, or any
other distinction, but because we are carried high and raised up
by his giant size.