Class: AnyStyle::Refs

Inherits:
Object
  • Object
show all
Includes:
StringUtils
Defined in:
lib/anystyle/refs.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from StringUtils

canonize, count, display_chars, display_width, indent, nnum, page_break?, scrub, strip_html, transliterate

Constructor Details

#initialize(max_delta: 10) ⇒ Refs

Returns a new instance of Refs.



34
35
36
37
 
# File 'lib/anystyle/refs.rb', line 34

def initialize(max_delta: 10)
  @all, @max_delta = [], max_delta
  reset
end

Instance Attribute Details

#all ⇒ Object (readonly)

Returns the value of attribute all.



32
33
34
 
# File 'lib/anystyle/refs.rb', line 32

def all
  @all
end

#max_delta ⇒ Object (readonly)

Returns the value of attribute max_delta.



32
33
34
 
# File 'lib/anystyle/refs.rb', line 32

def max_delta
  @max_delta
end

Class Method Details

.normalize!(lines, max_win_size: 2) ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/anystyle/refs.rb', line 12

def normalize!(lines, max_win_size: 2)
  win = []
  lines.each do |line|
    case line.label
    when 'text'
      win << line
    when 'ref'
      unless win.length == 0 || win.length > max_win_size
        win.each { |tk| tk.label = 'ref' }
      end
      win = []
    when 'blank', 'meta'
      # ignore
    else
      win = []
    end
  end
end

.parse(lines, **opts) ⇒ Object 



6
7
8
9
10
 
# File 'lib/anystyle/refs.rb', line 6

def parse(lines, **opts)
  lines.inject(new(**opts)) do |refs, line|
    refs.append line.value, line.label
  end
end

Instance Method Details

#append(line, label = 'ref') ⇒ Object 



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
 
# File 'lib/anystyle/refs.rb', line 57

def append(line, label = 'ref')
  case label
  when 'ref'
    (line, at) = strip line

    if pending?
      if join?(@pending, line, at - @indent)
        @pending = join @pending, line
      else
        commit pending: line, indent: at
      end
    else
      reset pending: line, indent: at
    end
  when 'meta'
    # skip
  when 'blank'
    if pending?
      if @delta > max_delta
        commit
      else
        @delta += 1
      end
    end
  else
    commit if pending?
  end

  self
end

#commit(**opts) ⇒ Object 



43
44
45
46
 
# File 'lib/anystyle/refs.rb', line 43

def commit(**opts)
  @all << @pending
  reset(**opts)
end

#delta_score(delta = @delta) ⇒ Object 



110
111
112
113
114
115
116
117
118
 
# File 'lib/anystyle/refs.rb', line 110

def delta_score(delta = @delta)
  case delta
  when 0 then 1
  when 1 then 0.5
  when 2, 3 then 0
  else
    delta > 6 ? -1 : -0.5
  end
end

#indent_depth(string) ⇒ Object 



261
262
263
 
# File 'lib/anystyle/refs.rb', line 261

def indent_depth(string)
  string[/^\s*/].length
end

#indent_score(indent) ⇒ Object 



101
102
103
104
105
106
107
108
 
# File 'lib/anystyle/refs.rb', line 101

def indent_score(indent)
  case
  when indent > 0 then 1.25
  when indent < 0 then -1
  else
    0
  end
end

#initial_score(a, b) ⇒ Object 



185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
 
# File 'lib/anystyle/refs.rb', line 185

def initial_score(a, b)
  case
  when b.match(/^\p{Ll}/) && !b.match(/^(de|v[oa]n|v\.)\s/)
    1.5
  when a.match(/\p{L}$/) && b.match(/^\p{L}/)
    1
  when b.match(/^["'”„’‚´«「『‘“`»]/)
    1
  when b.match(/^(url|doi|isbn|vol)\b/i)
    1.5
  when b.match(/^([\p{Pd}_*][\p{Pd}_* ]+|\p{Co})/)
    -1.5
  when b.match(/^\((1[4-9]|2[01])\d\d\)/) && !a.match(/(\p{Lu}|al|others)\.$/)
    -1
  when b.match(/^\p{Lu}[\p{Ll}-]+,?\s\p{Lu}/) && !a.match(/\p{L}$/)
    -0.5
  when match_list?(b)
    if match_list?(a)
      -1.5
    else
      -0.75
    end
  when b.match(/^\p{L}+:/), b.match(/^\p{L}+ \d/)
    0.5
  else
    0
  end
end

#join(a, b) ⇒ Object 



244
245
246
247
248
249
250
251
252
253
254
 
# File 'lib/anystyle/refs.rb', line 244

def join(a, b)
  if a =~ /\p{Pd}$/
    if a =~ /\p{Ll}-$/ && b =~ /^\p{Ll}/
      "#{a[0...-1]}#{b}"
    else
      "#{a}#{b}"
    end
  else
    "#{a} #{b}"
  end
end

#join?(a, b, indent = 0, delta = @delta) ⇒ Boolean

Returns:

  • (Boolean) 


88
89
90
91
92
93
94
95
96
97
98
99
 
# File 'lib/anystyle/refs.rb', line 88

def join?(a, b, indent = 0, delta = @delta)
  score = [
    indent_score(indent),
    delta_score(delta),
    years_score(a, b),
    terminal_score(a, b),
    initial_score(a, b),
    length_score(a, b),
    pages_score(a, b)
  ]
  score.reduce(&:+) >= 1
end

#length_score(a, b) ⇒ Object 



218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
 
# File 'lib/anystyle/refs.rb', line 218

def length_score(a, b)
  case
  when b.length < a.length
    case
    when b.length < 10
      2.5
    when b.length < 15
      2
    when b.length < 20
      1.75
    when b.length < 25
      1.5
    when b.length < 30
      1
    when b.length < 50
      0.75
    else
      0
    end
  when (b.length - a.length) > 12
    -0.5
  else
    0
  end
end

#match_list?(string) ⇒ Boolean

Returns:

  • (Boolean) 


214
215
216
 
# File 'lib/anystyle/refs.rb', line 214

def match_list?(string)
  string.match(/^(\d{1,3}(\.\s+|\s{2,})\p{L}|\[\p{Alnum}+\])/)
end

#match_pages?(string, not_years = true) ⇒ Boolean

Returns:

  • (Boolean) 


161
162
163
164
165
166
 
# File 'lib/anystyle/refs.rb', line 161

def match_pages?(string, not_years = true)
  m = string.match(/(\d+)\p{Pd}(\d+)|\bpp?\.|\d+\(\d+\)/)
  return false if m.nil?
  return false if not_years && m[1] && match_year?(m[1]) && match_year?(m[2])
  return true
end

#match_year?(string) ⇒ Boolean

Returns:

  • (Boolean) 


145
146
147
 
# File 'lib/anystyle/refs.rb', line 145

def match_year?(string)
  !!string.match(/\b(1[4-9]|2[01])\d\d[a-z]?\b/)
end

#pages_score(a, b) ⇒ Object 



149
150
151
152
153
154
155
156
157
158
159
 
# File 'lib/anystyle/refs.rb', line 149

def pages_score(a, b)
  if match_pages?(a, true)
    -0.25
  else
    if match_pages?(b, false)
      1
    else
      0
    end
  end
end

#pending? ⇒ Boolean

Returns:

  • (Boolean) 


53
54
55
 
# File 'lib/anystyle/refs.rb', line 53

def pending?
  !@pending.nil?
end

#reset(delta: 0, indent: 0, pending: nil) ⇒ Object 



39
40
41
 
# File 'lib/anystyle/refs.rb', line 39

def reset(delta: 0, indent: 0, pending: nil)
  @delta, @indent, @pending = delta, indent, pending
end

#strip(string) ⇒ Object 



256
257
258
259
 
# File 'lib/anystyle/refs.rb', line 256

def strip(string)
  string = display_chars(string)
  [string.lstrip, indent_depth(string)]
end

#terminal_score(a, b) ⇒ Object 



168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
 
# File 'lib/anystyle/refs.rb', line 168

def terminal_score(a, b)
  case
  when a.match(/https?:\/\/\w+/i)
    -0.25
  when a.match(/[,;:&\p{Pd}]$/), a.match(/\s(et al|pp|pg)\.$/)
    2
  when a.match(/\((1[4-9]|2[01])\d\d\)\.?$/)
    0
  when a.match(/(\p{^Lu}\.|\])$/)
    -1
  when a.match(/\d$/) && b.match(/^\p{Lu}/)
    -0.25
  else
    0
  end
end

#to_a ⇒ Object 



48
49
50
51
 
# File 'lib/anystyle/refs.rb', line 48

def to_a
  commit if pending?
  @all
end

#years_score(a, b) ⇒ Object 



120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
 
# File 'lib/anystyle/refs.rb', line 120

def years_score(a, b)
  if match_year?(a)
    if match_year?(b)
      case
      when b.length < 18
        1
      when b.length < 25
        0.5
      when b.length > 60
        -0.75
      else
        0
      end
    else
      if a.match(/[\d,] \(?(1[4-9]|2[01])\d\d[a-z]?\)?\.$/)
        -0.5
      else
        1
      end
    end
  else
    1
  end
end