Module: Metanorma::Mirror::Handlers::Inline::TextExtractor

Defined in:
lib/metanorma/mirror/handlers/inline/text_extractor.rb

Class Method Summary collapse

Class Method Details

.extract_bibdata_title(bibdata) ⇒ Object 



109
110
111
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 109

def self.extract_bibdata_title(bibdata)
  Metadata.title_from_bibdata(bibdata)
end

.extract_element_text(element) ⇒ Object 



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
34
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 8

def self.extract_element_text(element)
  return "" unless element.is_a?(Lutaml::Model::Serializable)

  text = SafeAttr.read(element, :text)
  if text.is_a?(Array)
    joined = text.join.strip
    return joined unless joined.empty?
  elsif text.is_a?(String) && !text.strip.empty?
    return text
  end

  content = SafeAttr.read(element, :content)
  if content.is_a?(Array)
    parts = content.filter_map do |c|
      next c.to_s if c.is_a?(String)
      next extract_element_text(c) if c.is_a?(Lutaml::Model::Serializable)

      nil
    end
    joined = parts.join.strip
    return joined unless joined.empty?
  elsif content.is_a?(String) && !content.strip.empty?
    return content
  end

  ""
end

.extract_fn_label(element) ⇒ Object 



66
67
68
69
70
71
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 66

def self.extract_fn_label(element)
  label = SafeAttr.read(element, :fmt_fn_label)
  return extract_element_text(element) unless label

  extract_formatted_text(label)
end

.extract_formatted_text(element) ⇒ Object 



36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 36

def self.extract_formatted_text(element)
  return "" unless element
  return element.to_s unless element.is_a?(Lutaml::Model::Serializable)

  parts = []
  element.each_mixed_content do |node|
    case node
    when String
      parts << node
    when Lutaml::Model::Serializable
      inner = extract_formatted_text(node)
      parts << inner if inner && !inner.empty?
    end
  end
  result = parts.join.strip
  result.empty? ? extract_element_text(element) : result
end

.extract_name_text(name) ⇒ Object 



87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 87

def self.extract_name_text(name)
  return name if name.is_a?(String)

  text = SafeAttr.read(name, :text)
  return text.to_s if text.is_a?(String) && !text.strip.empty?

  stems = SafeAttr.read(name, :stem)
  if stems.is_a?(Array) && !stems.empty?
    parts = Array(text).dup
    stems.each_with_index do |s, i|
      stem_text = MathUtil.text_from_stem(s)
      parts.insert(i + 1, stem_text) if stem_text && !stem_text.empty?
    end
    joined = parts.join.strip
    return joined unless joined.empty?
  end

  return Array(text).join if text.is_a?(Array) && !text.empty?

  ""
end

.extract_span_text(element) ⇒ Object 



80
81
82
83
84
85
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 80

def self.extract_span_text(element)
  text = extract_element_text(element)
  return text unless text.strip.empty?

  extract_formatted_text(element)
end

.extract_stem_text(element) ⇒ Object 



73
74
75
76
77
78
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 73

def self.extract_stem_text(element)
  asciimath = MathUtil.asciimath_from_stem(element)
  return asciimath if asciimath

  extract_element_text(element)
end

.extract_text_from_model(node) ⇒ Object 



54
55
56
57
58
59
60
61
62
63
64
 
# File 'lib/metanorma/mirror/handlers/inline/text_extractor.rb', line 54

def self.extract_text_from_model(node)
  case node
  when Metanorma::Document::Components::Inline::TabElement
    " "
  when Metanorma::Document::Components::Inline::BrElement
    "\n"
  else
    text = extract_formatted_text(node)
    text.empty? ? extract_element_text(node) : text
  end
end