Module: ReVIEW::LaTeXUtils

Included in:
LATEXBuilder, PDFMaker
Defined in:
lib/review/latexutils.rb

Constant Summary collapse

METACHARS = 
{
  '#' => '\#',
  "$" => '\textdollar{}',
  '%' => '\%',
  '&' => '\&',
  '{' => '\{',
  '}' => '\}',
  '_' => '\textunderscore{}',
  '^' => '\textasciicircum{}',
  '~' => '\textasciitilde{}',
  '|' => '\textbar{}',
  '<' => '\textless{}',
  '>' => '\textgreater{}',
  "\\" => '\reviewbackslash{}',
  "-" => '{-}',

  '⓪' => '\UTF{24EA}',
  '①' => '\UTF{2460}',
  '②' => '\UTF{2461}',
  '③' => '\UTF{2462}',
  '④' => '\UTF{2463}',
  '⑤' => '\UTF{2464}',
  '⑥' => '\UTF{2465}',
  '⑦' => '\UTF{2466}',
  '⑧' => '\UTF{2467}',
  '⑨' => '\UTF{2468}',
  '⑩' => '\UTF{2469}',
  '⑪' => '\UTF{246A}',
  '⑫' => '\UTF{246B}',
  '⑬' => '\UTF{246C}',
  '⑭' => '\UTF{246D}',
  '⑮' => '\UTF{246E}',
  '⑯' => '\UTF{246F}',
}
METACHARS_RE = 
/[#{Regexp.escape(METACHARS.keys.join(''))}]/u
METACHARS_INVERT = 
METACHARS.invert

Instance Method Summary collapse

Instance Method Details

#escape_index(str) ⇒ Object 



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# File 'lib/review/latexutils.rb', line 81

def escape_index(str)
  str.gsub(/[@!|"]/) {|s| '"' + s }
end

#escape_latex(str) ⇒ Object Also known as: escape 



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# File 'lib/review/latexutils.rb', line 64

def escape_latex(str)
  str.gsub(METACHARS_RE) {|s|
    METACHARS[s] or raise "unknown trans char: #{s}"
  }
end

#escape_url(str) ⇒ Object 



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# File 'lib/review/latexutils.rb', line 85

def escape_url(str)
  str.gsub(/[\#%]/) {|s| '\\'+s }
end

#macro(name, *args) ⇒ Object 



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# File 'lib/review/latexutils.rb', line 89

def macro(name, *args)
  "\\#{name}" + args.map {|a| "{#{a}}" }.join('')
end

#unescape_latex(str) ⇒ Object Also known as: unescape 



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# File 'lib/review/latexutils.rb', line 72

def unescape_latex(str)
  metachars_invert_re = Regexp.new(METACHARS_INVERT.keys.collect{|key| Regexp.escape(key)}.join('|'))
  str.gsub(metachars_invert_re) {|s|
    METACHARS_INVERT[s] or raise "unknown trans char: #{s}"
  }
end