The problem of to_yaml

here is a program

MIT LICENSE

Copyright © 2007 Soledad Penades www.soledadpenades.com

Permission is hereby granted, free of charge, to any person obtaining

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of this software and associated documentation files (the “Software”),

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The above copyright notice and this permission notice shall be

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THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,

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MERCHANTABILITY,

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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.

require ‘rubygems’
require ‘hpricot’
require ‘open-uri’
doc =
Hpricot(open(“http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html”))
#doc = open(“EXIF.html”) { |f| Hpricot(f) }

rows = []

(doc/“table.inner//tr”).each do |row|
cells = []
(row/“td”).each do |cell|

    if (cell/" span.s").length > 0
          values = (cell/"span.s").inner_html.split('<br

/>’).collect{ |str|
pair = str.strip.split(’=’).collect{|val| val.strip}
Hash[pair[0], pair[1]]
}

        if(values.length==1)
          cells << cell.inner_text
        else
          cells << values
        end

    elsif
        cells << cell.inner_text
    end
end
rows << cells

end

rows.shift

#p rows.to_yaml

File.open(’/home/pt/test/hexif.yaml’, ‘w’) { |f|
f << rows.to_yaml
}
when i run ,
[email protected]:~$ ruby /home/pt/test/row.rb
/home/pt/test/row.rb:61:in block in <main>': undefined methodto_yaml’
for #Array:0x9159ad0 (NoMethodError)
from /home/pt/test/row.rb:60:in open' from /home/pt/test/row.rb:60:in

what’s the matter?

Did you:

require ‘yaml’

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