I have the following text which will always follow the same format:
1
"13"
"241"
"Rabun"
"06"
"County"
2
"13"
"281"
"Towns"
"06"
"County"
I would like to assign each section to a hash like:
locality= {:id => "", :fips1 => "", :fips2 => "", :county => "", :stateid => "", :type => ""}
How would I go about doing this in Ruby? Any help is greatly appreciated.
fields = [:fips1,:fips2,:county,:stateid,:type]
arraywithhashes = yourtextdata.split("\n\n").map { |loc|
Hash[
[[:id,loc[/\d+/]]] +
fields.zip(loc.scan(/"([^"]+)"/).map &:first)
]
}
If you add new fields to your file, the only you'll need to edit is to add it to fields.
file = File.open('filename.dat'); textfile = file.read; file.close or textfile = File.open('filename.dat'){|f|f.read} or textfile = File.read('filename.dat')for each section, use a regular expression with groups corresponding to each entry in the section, then simply create hash table as you described from these groups.
locality.each_key { |k| locality.store(k, "foo") }
Another newbie-ish person here, but that might be a start for you.
You might want to consider using a Struct instead of a Hash.
Locality = Struct.new(:id, :fips1, :fips2, :county, :stateid, :type)
localities = []
DATA.each_slice(7) do |chunk|
chunk.pop if chunk.size == 7
localities << Locality.new(*chunk.map{|line| line.scan(/\w+/) })
end
p localities # => [#<struct Locality id=["1"], fips1=["13"], fips2=["241"], etc.
puts localities[1].fips2 # => 281
__END__
1
"13"
"241"
"Rabun"
"06"
"County"
2
"13"
"281"
"Towns"
"06"
"County"
each_slice(7) takes 7 lines of
DATA (the stuff after __END__ ).
The last line is removed unless there are only six lines (the last 'record').
A cleaned-up copy of the remaining lines is made. With these values a new Locality is created and added to an array
