The problem of to_yaml

Ruby
1

here is a program

MIT LICENSE

Copyright (c) 2007 Soledad Penades www.soledadpenades.com

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.

require ‘rubygems’
require ‘hpricot’
require ‘open-uri’
doc =
Hpricot(open(“EXIF Tags”))
#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 ,
pt@pt-laptop:~$ ruby /home/pt/test/row.rb
/home/pt/test/row.rb:61:in block in <main>': undefined method to_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?

2

Did you:

require ‘yaml’