Class: Hash

Inherits:
Object
  • Object
show all
Includes:
Funcml
Defined in:
lib/funcml-core/patch/hash.rb,
lib/funcml-core/patch/funcs/cast.rb,
lib/funcml-core/patch/funcs/list.rb,
lib/funcml-core/patch/funcs/math.rb,
lib/funcml-core/patch/funcs/time.rb,
lib/funcml-core/patch/funcs/encoding.rb,
lib/funcml-core/patch/funcs/dictionary.rb,
lib/funcml-core/patch/funcs/cryptography.rb

Constant Summary

Constants included from Funcml

Funcml::VERSION

Instance Method Summary collapse

Instance Method Details

#_add(mutations) ⇒ Object 



4
5
6
7
8
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 4

def _add(mutations)
  self.fetch(:_add, []).then do |numbers|
    numbers.mutate(mutations).reduce(:+)
  end
end

#_ago(mutations) ⇒ Object 



19
20
21
22
23
24
25
26
27
 
# File 'lib/funcml-core/patch/funcs/time.rb', line 19

def _ago(mutations)
  self.fetch(:_ago).then do |blk|
    unless blk.is_a?(Integer)
      raise IncorrectSecondsException, "_ago only supports seconds as value in #{self.to_s}"
    end

    (Time.now - blk).to_s
  end
end

#_base64decode(mutations) ⇒ Object 



11
12
13
14
15
 
# File 'lib/funcml-core/patch/funcs/encoding.rb', line 11

def _base64decode(mutations)
  self.fetch(:_base64decode, "").then do |value|
    return Base64.decode64(value.mutate(mutations)).strip
  end
end

#_base64encode(mutations) ⇒ Object 



5
6
7
8
9
 
# File 'lib/funcml-core/patch/funcs/encoding.rb', line 5

def _base64encode(mutations)
  self.fetch(:_base64encode, "").then do |value|
    return Base64.encode64(value.mutate(mutations)).strip
  end
end

#_capitalize(mutations) ⇒ Object 



203
204
205
206
207
 
# File 'lib/funcml-core/patch/hash.rb', line 203

def _capitalize(mutations)
  self.fetch(:_capitalize).then do |ctx|
    return ctx.mutate(mutations).capitalize
  end
end

#_ceil(mutations) ⇒ Object 



53
54
55
56
57
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 53

def _ceil(mutations)
  self.fetch(:_ceil).then do |number|
    number.mutate(mutations).ceil
  end
end

#_concat(mutations) ⇒ Object

_concat concatenates items elements as a string with sep as separator. eg: {items: [“a”, “b”, “c”], sep: “ ”} = “a b c”



166
167
168
169
170
171
172
 
# File 'lib/funcml-core/patch/hash.rb', line 166

def _concat(mutations)
  self.fetch(:_concat).then do |concat|
    return concat.fetch(:items, [])
      .mutate(mutations)
      .join(concat.fetch(:sep, "").mutate(mutations))
  end
end

#_decryptAES(mutations) ⇒ Object

source gist.github.com/wteuber/5318013



36
37
38
39
40
41
42
43
44
45
46
47
48
 
# File 'lib/funcml-core/patch/funcs/cryptography.rb', line 36

def _decryptAES(mutations)
  self.fetch(:_decryptAES).then do |blk|
    case blk
    in {data: data, encryptionKey: encryption_key}
      cipher = OpenSSL::Cipher.new("aes-256-cbc").decrypt
      cipher.key = Digest::MD5.hexdigest(encryption_key.mutate(mutations))
      s = [data.mutate(mutations)].pack('H*').unpack('C*').pack('c*')
      cipher.update(s) + cipher.final
    else
      raise  MissingEncryptionKeyException, "encryptionKey field missing in #{self.to_s}"
    end
  end
end

#_div(mutations) ⇒ Object 



16
17
18
19
20
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 16

def _div(mutations)
  self.fetch(:_div, []).then do |numbers|
    numbers.mutate(mutations).reduce(:/)
  end
end

#_downcase(mutations) ⇒ Object 



197
198
199
200
201
 
# File 'lib/funcml-core/patch/hash.rb', line 197

def _downcase(mutations)
  self.fetch(:_downcase).then do |ctx|
    return ctx.mutate(mutations).downcase
  end
end

#_encryptAES(mutations) ⇒ Object

source gist.github.com/wteuber/5318013



21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/funcml-core/patch/funcs/cryptography.rb', line 21

def _encryptAES(mutations)
  self.fetch(:_encryptAES).then do |blk|
    case blk
    in {data: data, encryptionKey: encryption_key}
      cipher = OpenSSL::Cipher.new("aes-256-cbc").encrypt
      cipher.key = Digest::MD5.hexdigest(encryption_key.mutate(mutations))
      s = cipher.update(data.mutate(mutations)) + cipher.final
      s.unpack('H*')[0].upcase
    else
      raise  MissingEncryptionKeyException, "encryptionKey field missing in #{self.to_s}"
    end
  end
end

#_first(mutations) ⇒ Object 



6
7
8
9
10
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 6

def _first(mutations)
  self.fetch(:_first).mutate(mutations).then do |elems|
    return elems.first
  end
end

#_float(mutations) ⇒ Object 



17
18
19
20
21
 
# File 'lib/funcml-core/patch/funcs/cast.rb', line 17

def _float(mutations)
  self.fetch(:_float).then do |obj|
    obj.mutate(mutations).to_f
  end
end

#_floor(mutations) ⇒ Object 



47
48
49
50
51
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 47

def _floor(mutations)
  self.fetch(:_floor).then do |number|
    number.mutate(mutations).floor
  end
end

#_fromJson(mutations) ⇒ Object 



29
30
31
32
33
34
35
36
37
 
# File 'lib/funcml-core/patch/funcs/cast.rb', line 29

def _fromJson(mutations)
  self.fetch(:_fromJson).then do |obj|
    # usage of symbolize_names instead of deep_symbolize_keys as it is only
    # implemented in funcml-cli.
    JSON.parse(obj, symbolize_names: true).then do |struct|
      struct.mutate(mutations)
    end
  end
end

#_head(mutations) ⇒ Object 



28
29
30
31
32
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 28

def _head(mutations)
  self.fetch(:_head).mutate(mutations).then do |elems|
    return elems[0][0..(elems[1]-1)]
  end
end

#_if(mutations) ⇒ Object 



43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
 
# File 'lib/funcml-core/patch/hash.rb', line 43

def _if(mutations)
  _runcond = Proc.new do |cond, mutations|
    case cond
    in {in: [needle, haystack]}
    haystack.mutate(mutations).include?(needle.mutate(mutations))
    
    in {null: vars} 
      vars.all? {|x| x.mutate(mutations).nil? }

    in {present: vars}
      vars.all? {|x| !x.mutate(mutations).nil? }

    in {eq: [first, second]} 
      first.mutate(mutations).eql?(second.mutate(mutations))

    in {ne: [first, second]} 
      !first.mutate(mutations).eql?(second.mutate(mutations))

    in {gt: [first, second]}
      first.mutate(mutations) > second.mutate(mutations)

    in {lt: [first, second]}
      first.mutate(mutations) < second.mutate(mutations)

    in {ge: [first, second]}
      first.mutate(mutations) >= second.mutate(mutations)

    in {le: [first, second]}
      first.mutate(mutations) <= second.mutate(mutations)
    
    in {match: [first, second]}
      first.match?(Regexp.new(second))

    in {unmatch: [first, second]}
      !first.match?(Regexp.new(second))

    # or should evaluated by top-level if as true or false. 
    in {or: or_conds}
      or_conds.any? do |cond|
        _runcond.call(cond, mutations)
      end

    else
      raise UnknownConditionException, "#{cond.to_s} is not a valid condition"
    end
  end

  self.fetch(:_if).then do |conditions|
    all_conditions_state = conditions.all? do |cond|
      _runcond.call(cond, mutations)
    end

    
    if all_conditions_state
      self.delete(:_if)
      self.delete(:_else)
      return self
    else
      return self[:_else] # returns nil if nothing has been set.
    end

    nil
  end
end

#_index(mutations) ⇒ Object 



46
47
48
49
50
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 46

def _index(mutations)
  self.fetch(:_index).mutate(mutations).then do |elems|
    return elems[0].index(elems[1])
  end
end

#_int(mutations) ⇒ Object 



11
12
13
14
15
 
# File 'lib/funcml-core/patch/funcs/cast.rb', line 11

def _int(mutations)
  self.fetch(:_int).then do |obj|
    obj.mutate(mutations).to_i
  end
end

#_json(mutations) ⇒ Object 



23
24
25
26
27
 
# File 'lib/funcml-core/patch/funcs/cast.rb', line 23

def _json(mutations)
  self.fetch(:_json).then do |obj|
    obj.mutate(mutations).to_json
  end
end

#_keys(mutations) ⇒ Object 



4
5
6
7
8
9
10
11
12
13
14
 
# File 'lib/funcml-core/patch/funcs/dictionary.rb', line 4

def _keys(mutations)
  self.fetch(:_keys).mutate(mutations).then do |elems|
    return elems.map do |elem|
      if elem.is_a?(Hash)
        elem.keys
      else
        elem
      end
    end.flatten
  end
end

#_last(mutations) ⇒ Object 



12
13
14
15
16
17
18
19
20
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 12

def _last(mutations)
  self.fetch(:_last).mutate(mutations).then do |elems|
    if elems.is_a?(Hash)
      return elems.values.last
    else
      return elems.last
    end
  end
end

#_len(mutations) ⇒ Object 



52
53
54
55
56
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 52

def _len(mutations)
  self.fetch(:_len).then do |elems|
    elems.mutate(mutations).length
  end
end

#_loop(mutations) ⇒ Object 



108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
 
# File 'lib/funcml-core/patch/hash.rb', line 108

def _loop(mutations)
  self.fetch(:_loop).then do |_loop|
    items = _loop.fetch(:items, []).mutate(mutations)
    _results = []
    
    # guard clause related to allowed types
    unless items.is_a?(Array)
      raise LoopTypeException, "_loop only supports Array as items"
    end

    # always mutate all items as they could be variable calling hashes.
    # when caller is a string, will be callable as $item for String
    # when caller is a Hash, will be callable as $item.path.to.value for String
    items.each do |item|
      _results <<  _loop[:block]
        .dup          # required to avoid duplicates in code
        .mutate(mutations.merge(item: item))
    end

    return _results
  end
end

#_map(mutations) ⇒ Object 



35
36
37
38
39
40
41
 
# File 'lib/funcml-core/patch/hash.rb', line 35

def _map(mutations)
  self.fetch(:_map).then do |ctx|
    ctx.fetch(:items, []).mutate(mutations).map do |item|
      {ctx.fetch(:call).to_sym => item}.mutate(mutations)
    end
  end
end

#_max(mutations) ⇒ Object 



41
42
43
44
45
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 41

def _max(mutations)
  self.fetch(:_max, []).then do |numbers|
    numbers.mutate(mutations).max
  end
end

#_merge(mutations) ⇒ Object

_merge merges a hash found at mutation path with caller hash and removes the _merge reference. eg: {key: value, _merge: path.to_mutation } = value, imported_key: value



154
155
156
157
158
159
160
161
162
 
# File 'lib/funcml-core/patch/hash.rb', line 154

def _merge(mutations)
  self.fetch(:_merge).mutate(mutations).then do |result|
    self.merge!(result).then do
      self.delete(:_merge)
    end
  end

  self
end

#_min(mutations) ⇒ Object 



35
36
37
38
39
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 35

def _min(mutations)
  self.fetch(:_min, []).then do |numbers|
    numbers.mutate(mutations).min
  end
end

#_mod(mutations) ⇒ Object 



22
23
24
25
26
27
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 22

def _mod(mutations)
  self.fetch(:_mod).then do |numbers|
    first, second = numbers.mutate(mutations)
    first % second
  end
end

#_mul(mutations) ⇒ Object 



29
30
31
32
33
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 29

def _mul(mutations)
  self.fetch(:_mul, []).then do |numbers|
    numbers.mutate(mutations).reduce(:*)
  end
end

#_readfile(mutations) ⇒ Object 



174
175
176
177
178
 
# File 'lib/funcml-core/patch/hash.rb', line 174

def _readfile(mutations)
  self.fetch(:_readfile).then do |path|
    File.read(path)
  end
end

#_replace(mutations) ⇒ Object 



180
181
182
183
184
185
186
187
188
189
 
# File 'lib/funcml-core/patch/hash.rb', line 180

def _replace(mutations)
  self.fetch(:_replace).then do |ctx|
    content = ctx.fetch(:content)
    ctx.fetch(:substitutions).each do |from, to|
      content = content.gsub(from.mutate(mutations), to.mutate(mutations))
    end

    content
  end
end

#_reverse(mutations) ⇒ Object 



34
35
36
37
38
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 34

def _reverse(mutations)
  self.fetch(:_reverse).mutate(mutations).then do |elems|
    return elems.reverse
  end
end

#_round(mutations) ⇒ Object 



59
60
61
62
63
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 59

def _round(mutations)
  self.fetch(:_round).then do |number|
    number.mutate(mutations).round
  end
end

#_sha1sum(mutations) ⇒ Object 



8
9
10
11
12
 
# File 'lib/funcml-core/patch/funcs/cryptography.rb', line 8

def _sha1sum(mutations)
  self.fetch(:_sha1sum).then do |value|
    return Digest::SHA1.hexdigest(value.mutate(mutations))
  end
end

#_sha256sum(mutations) ⇒ Object 



14
15
16
17
18
 
# File 'lib/funcml-core/patch/funcs/cryptography.rb', line 14

def _sha256sum(mutations)
  self.fetch(:_sha256sum).then do |value|
    return Digest::SHA256.hexdigest(value.mutate(mutations))
  end
end

#_string(mutations) ⇒ Object 



5
6
7
8
9
 
# File 'lib/funcml-core/patch/funcs/cast.rb', line 5

def _string(mutations)
  self.fetch(:_string).then do |obj|
    obj.mutate(mutations).to_s
  end
end

#_sub(mutations) ⇒ Object 



10
11
12
13
14
 
# File 'lib/funcml-core/patch/funcs/math.rb', line 10

def _sub(mutations)
  self.fetch(:_sub, []).then do |numbers|
    numbers.mutate(mutations).reduce(:-)
  end
end

#_sum(mutations) ⇒ Object

_sum takes and mutates all elements in array and sums them. eg: [1, 2, 3] = 6



145
146
147
148
149
 
# File 'lib/funcml-core/patch/hash.rb', line 145

def _sum(mutations)
  self.fetch(:_sum).map do |item|
    item.mutate(mutations)
  end.sum
end

#_tail(mutations) ⇒ Object 



22
23
24
25
26
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 22

def _tail(mutations)
  self.fetch(:_tail).mutate(mutations).then do |elems|
    return elems[0].last(elems[1])
  end
end

#_time(mutations) ⇒ Object 



8
9
10
11
12
13
14
15
16
17
 
# File 'lib/funcml-core/patch/funcs/time.rb', line 8

def _time(mutations)
  self.fetch(:_time).then do |blk|
    _value = blk.fetch(:value)
    _format = blk.fetch(:format, "%d/%m/%Y %H:%M:%S")

    _value.mutate(mutations).then do |value|
      return Time.parse(value).strftime(_format.mutate(mutations))
    end
  end
end

#_uniq(mutations) ⇒ Object 



40
41
42
43
44
 
# File 'lib/funcml-core/patch/funcs/list.rb', line 40

def _uniq(mutations)
  self.fetch(:_uniq).mutate(mutations).then do |elems|
    return elems.uniq
  end
end

#_until(mutations) ⇒ Object 



131
132
133
134
135
136
137
138
139
140
 
# File 'lib/funcml-core/patch/hash.rb', line 131

def _until(mutations)
  _results = []
  amount = self.fetch(:_until)
  amount.times do |i|
    _results << self.dup.select{|k, v| k != :_until}
      .mutate(mutations.merge(item: i))
  end

  return _results
end

#_upcase(mutations) ⇒ Object 



191
192
193
194
195
 
# File 'lib/funcml-core/patch/hash.rb', line 191

def _upcase(mutations)
  self.fetch(:_upcase).then do |ctx|
    return ctx.mutate(mutations).upcase
  end
end

#_values(mutations) ⇒ Object 



16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/funcml-core/patch/funcs/dictionary.rb', line 16

def _values(mutations)
  self.fetch(:_values).mutate(mutations).then do |elems|
    return elems.map do |elem|
      if elem.is_a?(Hash)
        elem.values
      else
        elem
      end
    end.flatten
  end
end

#dig_from_str(path, mutations) ⇒ Object 



209
210
211
212
213
214
215
 
# File 'lib/funcml-core/patch/hash.rb', line 209

def dig_from_str(path, mutations)
  path_array_sym = path.split('.').map do |sub|
    sub.to_sym
  end

  self.dig(*path_array_sym).mutate(mutations)
end

#mutate(mutations = {}) ⇒ Object 



6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/funcml-core/patch/hash.rb', line 6

def mutate(mutations = {})
  # dup is here to avoid iteration error on #delete/#merge
  self.dup.each do |key, value|
    case key
    in /^\\_.*$/
      # escapes keys starting with backslash (\).
      # gsub is only implemented on String, not Symbol - this is why
      # we cast the key to string before re-casting it to sym later.
      escaped_key = key.to_s
        .gsub('\\_', '_')

      self[escaped_key.to_sym] = value.mutate(mutations)
      self.delete(key)
    in /^_.*$/
      # recursive mutation of result from pattern-matched _method
      # once recursively mutated, we return the final object by guard
      # clause instead of mutating the current object.
      return self.send(key, mutations)
        .mutate(mutations)
    else
      # no monkey-patch method found (_ prefix), we mutate anyway
      # in case of variables or sub-functions.
      self[key] = value.mutate(mutations)
    end
  end

  self
end