Class: MathMetadata::Reference

Inherits:
Object
  • Object
show all
Defined in:
lib/math_metadata_lookup/reference.rb

Overview

Attributes

  • :source [String] original string

  • :article [MathMetadata::Article] parsed metadata

Constant Summary collapse

ARTICLE_REFERENCE_1_RE =

1=authors, 2=title, 3=publication, 4=year, 5=range

%r{([^:]+):\s*(.*?),\s*([^,]+),\s*\((\d{4})\)\s*,\s*([^ ]+)\s*.*?}mi
ARTICLE_REFERENCE_2_RE =

1=authors, 2=title, 3=publication, 4=range, 5=publisher, 6=place, 7=year

%r{([^:]+):\s*(.*?),\s*(.*?,\s*[^,]+,\s*[^,]+,\s*[^,]+),\s*pp\.\s*([^,]+?),\s*([^,]+),\s*(.*?),\s*(\d{4})\s*.*?}mi
ARTICLE_REFERENCE_3_RE =

1=authors, 2=title, 3=range, 4=publication, 5=place, 6=year

%r{([^:]+):\s*(.*?),\s*pp\.\s*([^,]+?),\s*([^,]+),\s*(.*?),\s*(\d{4})}mi
ARTICLE_REFERENCE_4_RE =

1=authors, 2=title, 3=publication, 4=publisher, 5=place, 6=year

%r{([^:]+):\s*(.*?),\s*(.*?),\s*([^,]+),\s*([^,]+),\s*(\d{4})\s*.*?}mi
ARTICLE_REFERENCE_5_RE =

1=authors, 2=title, 4=publisher, 5=place, 6=year

%r{([^:]+):\s*(.*?),\s*(.*?),\s*([^,]+),\s*(\d{4})\s*.*?}mi
ARTICLE_REFERENCE_6_RE =

1=authors, 2=title, 3=publisher, 4=place, 5=year

%r{([^:]+):\s*(.*?),\s*([^,]+),\s*([^,]+),\s*(\d{4})\s*}mi
ARTICLE_REFERENCE_7_RE =

1=authors, 2=title, 3=publication, 4=year, 5=range

%r{([^:]+):\s*(.*),\s*(.*?,\s*\d+)\s*\((\d{4})\),\s*([^ ]+)\s*.*?}mi
ARTICLE_REFERENCE_8_RE =

1=authors, 2=title, 3=publication, 4=year, 5=range

%r{([^:]+):\s*(.*),\s*(.*?)\s*\((\d{4})\),\s*([^ ]+)\s*.*?}mi
ARTICLE_REFERENCE_9_RE =

1=authors, 2=title, 3=publisher, 4=place

%r{([^:]+):\s*(.*?),\s*([^,]+),\s*(.*)}mi
ARTICLE_REFERENCE_10_RE =

1=authors, 2=title, 3=publication

%r{([^:]+):\s*(.*?),\s*(.*?)\s*.*?}mi
ARTICLE_REFERENCE_11_RE =

1=authors, 2=title, 3=place, 4=year

%r{([^:]+):\s*(.*),(.*?)\s+(\d{4})}mi

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(str = nil, i = 1) ⇒ Reference

Returns a new instance of Reference.



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# File 'lib/math_metadata_lookup/reference.rb', line 40

def initialize( str=nil, i=1 )
  @number = i
  if str.kind_of?(Article)
    @source = @suffix = nil
    @article = str
  else
    @source = str
    @article, @suffix = Reference.parse(str) unless str.to_s.empty?
  end
end

Instance Attribute Details

#article ⇒ Object

Returns the value of attribute article.



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# File 'lib/math_metadata_lookup/reference.rb', line 38

def article
  @article
end

#number ⇒ Object

Returns the value of attribute number.



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# File 'lib/math_metadata_lookup/reference.rb', line 38

def number
  @number
end

#reg ⇒ Object

Returns the value of attribute reg.



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# File 'lib/math_metadata_lookup/reference.rb', line 38

def reg
  @reg
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/math_metadata_lookup/reference.rb', line 38

def source
  @source
end

#suffix ⇒ Object

Returns the value of attribute suffix.



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# File 'lib/math_metadata_lookup/reference.rb', line 38

def suffix
  @suffix
end

Class Method Details

.parse(ref_str) ⇒ Object 



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# File 'lib/math_metadata_lookup/reference.rb', line 61

def self.parse( ref_str )
  str = ref_str.dup
  if ref_str =~ %r~^\s*(?:\[.*?\]|\(.*?\)|\d+[\.]?)\s*(.*)~mi
    str = $1
  end
  article = Article.new
  rnumber = 0
  suffix = nil
  found = []
  (1..11).each do |j|
    # 1=authors, 2=title, 3=publication, 4=year, 5=range, 6=id, 7=place, 8=publisher
    re = eval("Reference::ARTICLE_REFERENCE_#{j}_RE")
    if str =~ re
      case j
      when 1
        # 1=authors, 2=title, 3=publication, 4=year, 5=range, 6=id
        found = [$1, $2, $3, $4, MathMetadata.normalize_range($5), nil]
      when 2
        # 1=authors, 2=title, 3=publication, 4=range, 5=publisher, 6=place, 7=year, 8=id
        found = [$1, $2, $3, $7, MathMetadata.normalize_range($4), nil, $6, $5]
      when 3
        # 1=authors, 2=title, 3=range, 4=publication, 5=place, 6=year
        found = [$1, $2, $4, $6, MathMetadata.normalize_range($3), nil, $5]
      when 4
        # 1=authors, 2=title, 3=publication, 4=publisher, 5=place, 6=year, 7=id
        found = [$1, $2, $3, $6, nil, nil, $5, $4]
      when 5
        # 1=authors, 2=title, 3=publisher, 4=place, 5=year, 6=id
        found = [$1, $2, nil, $5, nil, nil, $4, $3]
      when 6
        # 1=authors, 2=title, 3=publisher, 4=place, 5=year, 6=id
        found = [$1, $2, nil, $5, nil, nil, $4, $3]
      when 7
        # 1=authors, 2=title, 3=publication, 4=year, 5=range, 6=id
        found = [$1, $2, $3, $4, MathMetadata.normalize_range($5), nil]
      when 8
        # 1=authors, 2=title, 3=publication, 4=year, 5=range, 6=id
        found = [$1, $2, $3, $4, MathMetadata.normalize_range($5), nil]
      when 9
        # 1=authors, 2=title, 3=publisher, 4=place
        found = [$1, $2, nil, nil, nil, nil, $4, $3]
      when 10
        # 1=authors, 2=title, 3=publication, 4=id
        found = [$1, $2, $3, nil, nil, nil, nil, nil]
      when 11
        # 1=authors, 2=title, 3=place, 4=year
        found = [$1, $2, nil, $4, nil, nil, $3]
#          when 12
#            # 1=authors, 2=title, 3=place, 4=year
#            found = [$1, $2, nil, nil, nil, nil, nil]
      end
      rnumber = j
      break
    end
  end

  [:authors, :title, :publication, :year, :range, :id, :place, :publisher].each_with_index do |key, idx|
    article[key] = found[idx]
  end
  article.authors = Reference.split_authors article.authors

  [article, suffix, rnumber]
end

.split_authors(str) ⇒ Object 



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# File 'lib/math_metadata_lookup/reference.rb', line 126

def self.split_authors( str )
  res = [
    /;\s*/,
    /,?\s*(?:and|und|et)\s+/,
    /(\S+,\s*[^,]+),?\s*/
  ]

  authors = [str]
  res.each do |re|
    authors = authors.map{|a| a.to_s.split(re)}.flatten
  end
  authors.delete_if{|a| a.strip.empty?}

  authors
end

Instance Method Details

#to_json(*args) ⇒ Object 



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# File 'lib/math_metadata_lookup/reference.rb', line 52

def to_json(*args)
  {
    :number => @number,
    :source => @source,
    :article => @article
  }.to_json(*args)
end