Class: HwpScriptToLatex::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/hwp_script_to_latex/converter.rb

Overview

한글 수식스크립트를 LaTeX 문법으로 변환

Constant Summary collapse

LEFT_TERM_REGEX =

명령어에 사용되는 좌, 우항 정규표현식

"(?:[^{}\\s`]{9})*?\\K(?<%s>{(?>[^{}]+|(?:\\g<%s>))*}|(?:[^{}\\s`]{0,9}))"
RIGHT_TERM_REGEX = 
"(?<%s>{(?>[^{}]+|(?:\\g<%s>))*}|(?:[^{}\\s`]{0,9}))"

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Converter

Returns a new instance of Converter.



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# File 'lib/hwp_script_to_latex/converter.rb', line 10

def initialize
  f = File.open(File.join(File.dirname(__FILE__), '..', '..', 'rules.json'), 'r')
  file_content = f.read
  f.close

  @rules= JSON.parse(file_content, symbolize_names: true)
  @simple_commands = @rules[:command][:simple].sort_by { |hash| -1 * hash[:script].length }
  @matrix_commands = @rules[:command][:matrix]
  @meta_keywords = @rules[:keyword][:meta].sort_by { |hash| -1 * hash[:regex].inspect.length }
  @command_keywords = @rules[:keyword][:command].sort_by { |hash| -1 * hash[:regex].inspect.length }
  @symbol_keywords = @rules[:keyword][:symbol].sort_by { |hash| -1 * hash[:regex].inspect.length }
  @reserved_keywords = @rules[:keyword][:reserved].sort_by { |hash| -1 * hash[:regex].inspect.length }
end

Instance Method Details

#convert(script, math_mode: false, display_mode: false) ⇒ Object 



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# File 'lib/hwp_script_to_latex/converter.rb', line 24

def convert(script, math_mode: false, display_mode: false)
  # Sanitize for starting convert
  result = pre_sanitize(script)
  # 키워드 치환
  result = replace_keywords(result)
  # Simple Command 치환
  result = replace_simple_commands(result)

  # 특수 형태의 명령어 치환
  # Case 1. 루트 변환
  #   sqrt A => \sqrt {A}
  #   sqrt A of B => \sqrt [A]{B}
  # Case 2. 분수 변환
  #   A over B => \dfrac {A}{B}
  # Case 3. 행렬 변환
  #   dmatrix {...} => \begin{vmatrix}...\end{vmatrix}
  #   bmatrix {...} => \begin{Bmatrix}...\end{Bmatrix}
  #   pmatrix {...} => \begin{pmatrix}...\end{pmatrix}
  #   matrix {...} => \begin{matrix}...\end{matrix}
  result = replace_sqrt(result) # Case 1
  result = replace_fractions(result) # Case 2
  result = replace_matrix(result) # Case 3

  # 전체 수식에 디스플레이 스타일 적용
  result = decorate_displaystyle(result) if display_mode

  # Sanitize result for removing dirty spaces
  result = post_sanitize(result)

  # Math mode
  result = "$#{result}$" if math_mode

  return result
end