Class: BibTexFile

Inherits:
Object
  • Object
show all
Defined in:
lib/rbbt/sources/bibtex.rb

Defined Under Namespace

Classes: Entry

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ BibTexFile

Returns a new instance of BibTexFile.



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# File 'lib/rbbt/sources/bibtex.rb', line 93

def initialize(file)
  @entries = BibTexFile.load_file(file)
end

Class Method Details

.clean_string(string) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 53

def self.clean_string(string)
  string.gsub(/[{}]/,'')
end

.load_file(file) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 73

def self.load_file(file)
  entries = {}

  case
  when File.exists?(file)
    self.parse_bibtex File.open(file).read 
  when IO === file
    self.parse_bibtex file.read
  when String === file
    self.parse_bibtex file
  else
    raise "Input format not recognized"
  end.each do |entry|
    type, name, info = self.parse_entry entry
    entries[name] = Entry.new name, type, info
  end

  entries
end

.parse_bibtex(bibtex) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 57

def self.parse_bibtex(bibtex)
  bibtex.scan(/@\w+\{.*?^\}\s*/m)
end

.parse_entry(entry) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 61

def self.parse_entry(entry)
  info = {}

  type, name = entry.match(/@([^\s]+)\{([^\s]+)\s*,/).values_at(1,2)
  
  entry.scan(/\s*(.*?)\s*=\s*\{?\s*(.*?)\s*\}?\s*,?\s*$/).each do |pair|
    info[pair.first.chomp] = pair.last.chomp
  end

  [ type.chomp, name.chomp, info]
end

Instance Method Details

#add(bibtex) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 111

def add(bibtex)
  type, name, info = BibTexFile.parse_entry bibtex
  @entries[name] = BibTexFile::Entry.new name, type, info
end

#entries ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 116

def entries
  @entries.keys
end

#entry(bibentry) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 120

def entry(bibentry)
  @entries[bibentry]
end

#save(file) ⇒ Object 



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# File 'lib/rbbt/sources/bibtex.rb', line 97

def save(file)
  text = entries.collect{|e| entry e }.sort{|a,b| 
    if a.year.to_i != b.year.to_i
      a.year.to_i <=> b.year.to_i
    else
      a.name <=> b.name
    end
  }.reverse.collect do |entry|
    entry.to_s
  end * "\n"

  File.open(file, 'w') do |fout| fout.puts text end
end