Module: Asciidoctor::LaTeX::TeXBlock

Defined in:

lib/asciidoctor/latex/tex_block.rb

Constant Summary

INNER_TYPES =

The list of “inner environments” whose enclosing escaped braces are not to be stripped.

["array", "matrix",  "none"]

Class Method Summary (collapse)

• + (Object) environmemt_type_of_match(m)

  Return the environment type from an element of the array produced by get_tex_blocks – each element is a three-element array with the tex block as the middle element.

• + (Object) environment_type(str)

  Return the environment type of a tex block.

• + (Object) get_tex_blocks(str)

  Find blocks delmited by [ … ].

• + (Object) process_environments(str)

  Transform the input string by stripping or passing each tex block as required.

• + (Object) process_tex_block(m, str)

  Transform the input string for a given block m.

• + (Object) restore_match_data(m)

  Return the block as-is – do not strip delimiters.

• + (Object) strip_match_data(m)

  Return the block sans delimiters.

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# File 'lib/asciidoctor/latex/tex_block.rb', line 67

def self.environmemt_type_of_match m
  environment_type m[1]
end

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# File 'lib/asciidoctor/latex/tex_block.rb', line 51

def self.environment_type str
  rx_env_block = /\\begin\{(.*?)\}/
  m = str.match rx_env_block
  if m
    env_type = m[1]
  else
    env_type = 'none'
  end
  env_type
end

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# File 'lib/asciidoctor/latex/tex_block.rb', line 42

def self.get_tex_blocks str
  rx_tex_block = /(\\\[)(.*?)(\\\])/m
  str.scan rx_tex_block
end

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# File 'lib/asciidoctor/latex/tex_block.rb', line 95

def self.process_environments str
  tbs = get_tex_blocks str
  tbs.each do |tb|
    str = process_tex_block tb, str
  end
  str
end

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# File 'lib/asciidoctor/latex/tex_block.rb', line 83

def self.process_tex_block m, str
  block_type = environmemt_type_of_match m
  if INNER_TYPES.include? block_type
    output = str
  else
    output = str.gsub restore_match_data(m), strip_match_data(m)
  end
  output
end

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# File 'lib/asciidoctor/latex/tex_block.rb', line 73

def self.restore_match_data m
  m.join()
end

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# File 'lib/asciidoctor/latex/tex_block.rb', line 78

def self.strip_match_data m
  m[1]
end