字符串到哈希的转换

Question

How i can convert string into hash?

now i use:

eval "{'1627207:28320'=>'text'}"
=> {'1627207:28320'=>'text'}

but "eval" is not good for my case - string passed from params, and such case it is not secure

Edited:

passed string can also be:

"{'1627207'=>'text', '11:167:28320'=>'text 1 / text 2 / unicode=>привет!'}"

Then need result hash:

{'1627207:28320'=>'text',
'11:167:28320'=>'text 1 / text 2 / unicode=>привет!'}

Answer 1

str = "{'1627207:28320'=>'text'}"
p Hash[*str.delete("{}'").split('=>')] #{"1627207:28320"=>"text"}

edit for different input:

str = "{'1627207:28320'=>'text', 'key2'=>'text2'}" 
p Hash[*str.delete("{}'").split(/=>|, /)] #{"1627207:28320"=>"text", "key2"=>"text2"}

Answer 2

class String
  def to_h
    h={}
    self.scan(/'(\w+.\w+)'=>'(\w+)'/).each { |k,v| h[k]=v }
    h
  end
end

p "{'1627207:28320'=>'text','test'=>'text2'}".to_h
=>{"1627207:28320"=>"text", "test"=>"text2"}

EDIT: shorter version

class String
  def to_h
    Hash[self.scan(/'([^']+)'=>'([^']+)'/)]
  end
end

Answer 3

Quite straight forward:

$ irb
irb(main):001:0> k='1627207:28320'
=> "1627207:28320"
irb(main):002:0> v='text'
=> "text"
irb(main):003:0> h={k => v}
=> {"1627207:28320"=>"text"}
irb(main):004:0> h
=> {"1627207:28320"=>"text"}
irb(main):005:0>

Answer 4

You could simply try this:

text_hash['1627207:28320'] = 'text'
text_hash