Ruby HTML attributes to Hash or Array

Question

type="checkbox" name="prdCdList" value="102001174" class="bnone" newfl="Y" cpnfl="N" catcpnfl="N" eventfl="N" catcd1="102000" catcd2="102001" prdimgl="/upload/product/320_1405497216907.jpg" prdnm="Dear my volume" prdvol="3.4g" prdlndesc="Limited Pink" selprc="10000" spsalprc="0" cpnprc="0" cashptrat="0" cashpt="0" discpt="0" salstatcdnm="Available" salstatcd="PS01" prdwidth="0" prdheight="0" prddepth="0" pricestr="" price="10000" prepromote="" endpromote=""

I am currently using bunch of regexes to parse above data into a structured array or hash. Actual tag includes much more values. Thought there must be a better way in Ruby like using split or something? There are spaces between attributes but also within certain values so..

Can any one suggest a good way to handle this type of string?

I would like the result be:

hash = { 
 type => "checkbox",
 name => "prdCdList",
... so on.
}

or

arr = [
 "checkbox",
 "prdCdList",
... so on.
]

Would appreciate any advice =]

Thanks,

@UriAgassi Yep am using it. If you can let me know how I would be able to parse just the values with Nokogiri that would be great! They are inside one tag, so if I select that tag with xpath or CSS, it would return the whole tag. I am currently doing that + regex to get the inside values.. — Rok, Commented Jul 21, 2014 at 14:10

Jacob Brown · Accepted Answer · 2014-07-21 14:14:05Z

1

node.attributes.each_with_object({}) {|(k,v), acc| acc[k] = v.value }

where node is your tag.

answered Jul 21, 2014 at 14:14

Jacob Brown

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Uri Agassi · Accepted Answer · 2014-07-21 14:16:09Z

Using Nokogiri, the attributes are already parsed for you - simply access them using []:

doc = Nokogiri::HTML.parse('<html><body><div type="checkbox" name="prdCdList" value="102001174" class="bnone" newfl="Y" cpnfl="N" catcpnfl="N" eventfl="N" catcd1="102000" catcd2="102001" prdimgl="/upload/product/320_1405497216907.jpg" prdnm="Dear my volume" prdvol="3.4g" prdlndesc="Limited Pink" selprc="10000" spsalprc="0" cpnprc="0" cashptrat="0" cashpt="0" discpt="0" salstatcdnm="Available" salstatcd="PS01" prdwidth="0" prdheight="0" prddepth="0" pricestr="" price="10000" prepromote="" endpromote=""></body></html>')
div = doc.css('div').first
div['prdnm']
# => "Dear my volume"

From the documentation:

Nokogiri::XML::Node is your window to the fun filled world of dealing with XML and HTML tags. A Nokogiri::XML::Node may be treated similarly to a hash with regard to attributes. For example (from irb):
01.irb(main):004:0> node
02.=> <a href="#foo" id="link">link</a>
03.irb(main):005:0> node['href']
04.=> "#foo"
05.irb(main):006:0> node.keys
06.=> ["href", "id"]
07.irb(main):007:0> node.values
08.=> ["#foo", "link"]
09.irb(main):008:0> node['class'] = 'green'
10.=> "green"
11.irb(main):009:0> node
12.=> <a href="#foo" id="link" class="green">link</a>
13.irb(main):010:0>
See Nokogiri::XML::Node#[] and Nokogiri::XML#[]= for more information.

wow...that was so simple and neat.. thank you so much. That seems to be such a basic feature of Nokogiri.. thanks! — Rok, Commented Jul 21, 2014 at 14:21

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