CODEWITHSUNDEEP
ruby-on-railsruby
Ahkshaey Ravi
Ahkshaey Ravi

Reputation: 190

remove special characters in an array in ruby

I have an array as shown below:

[
  [
    "[\"\", \"Mrs. Brain Bauch\", \"Vernice Ledner\"]", 
    "[\"\", \"Robb Ratke\", \"Amaya Jakubowski\"]",       
    "[\"\", \"Lindsey Cremin III\", \"Harvey Fisher\"]", 
    "[\"\", \"Daniela Schneider\", \"Benny Schumm\"]"
  ]
]

How can I convert this into the array structure shown below:

[
  [
    ["Mrs. Brain Bauch", "Vernice Ledner"], 
    ["Robb Ratke", "Amaya Jakubowski"],       
    ["Lindsey Cremin III", "Harvey Fisher"], 
    ["Daniela Schneider", "Benny Schumm"]
  ]
]

Upvotes: 1

Views: 1239

Answers (2)

Aleksei Matiushkin
Aleksei Matiushkin

Reputation: 121000

require 'json'
input = [[
  "[\"\", \"Mrs. Brain Bauch\", \"Vernice Ledner\"]", 
  "[\"\", \"Robb Ratke\", \"Amaya Jakubowski\"]",       
  "[\"\", \"Lindsey Cremin III\", \"Harvey Fisher\"]", 
  "[\"\", \"Daniela Schneider\", \"Benny Schumm\"]"
]]
[input.first.map { |l| JSON.parse l }.map { |a| a.reject &:empty? }]
#⇒ [[
#    ["Mrs. Brain Bauch", "Vernice Ledner"], 
#    ["Robb Ratke", "Amaya Jakubowski"],       
#    ["Lindsey Cremin III", "Harvey Fisher"], 
#    ["Daniela Schneider", "Benny Schumm"]
#  ]]

Upvotes: 5

Cary Swoveland
Cary Swoveland

Reputation: 110675

If arr is your array:

r = /
    (?<=\")    # match `\"` in a positive lookbehind
    [A-Z]      # match a capital letter
    [a-z\.\s]+ # match a letter, period or space one or more times
   /ix         # case-insenitive (i) and free-spacing (x) regex definition  modes

[arr.first.map { |s| s.scan r }]
  #=> [[["Mrs. Brain Bauch", "Vernice Ledner"],
  #     ["Robb Ratke", "Amaya Jakubowski"],
  #     ["Lindsey Cremin III", "Harvey Fisher"],
  #     ["Daniela Schneider", "Benny Schumm"]]]

Upvotes: 5

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