Class: AsciidoctorBibliography::Databases::BibTeX::LatexFilter

Inherits:
BibTeX::Filter
  • Object
show all
Defined in:
lib/asciidoctor-bibliography/databases/bibtex.rb

Overview

This filter extends the original latex filter in bibtex-ruby to handle unknown latex macros more gracefully. We could have used latex-decode gem together with our custom replacement rules, but latex-decode eats up all braces after it finishes all decoding. So we hack over the LaTeX.decode function and insert our rules before ‘strip_braces`.

Instance Method Summary collapse

Instance Method Details

#apply(value) ⇒ Object

rubocop:disable Metrics/MethodLength; keep this a list, though!



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# File 'lib/asciidoctor-bibliography/databases/bibtex.rb', line 32

def apply(value) # rubocop:disable Metrics/MethodLength; keep this a list, though!
  text = value.to_s
  LaTeX::Decode::Base.normalize(text)
  LaTeX::Decode::Maths.decode!(text)
  LaTeX::Decode::Accents.decode!(text)
  LaTeX::Decode::Diacritics.decode!(text)
  LaTeX::Decode::Punctuation.decode!(text)
  LaTeX::Decode::Symbols.decode!(text)
  LaTeX::Decode::Greek.decode!(text)
  # TODO: could we be doing something smarter with some macros, e.g. \url?
  text.gsub!(/\\url\{(.+?)\}/, ' \\1 ')
  text.gsub!(/\\\w+(?=\s+\w)/, "")
  text.gsub!(/\\\w+(?:\[.+?\])?\s*\{(.+?)\}/, '\\1')
  LaTeX::Decode::Base.strip_braces(text)
  LaTeX.normalize_C(text)
end