Class: MarkdownList

Inherits:
DocItem show all
Defined in:
lib/almirah/doc_items/markdown_list.rb

Constant Summary collapse

@@lists_stack = 
[]

Instance Attribute Summary collapse

Attributes inherited from DocItem

#parent_doc, #parent_heading

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DocItem

#get_url

Methods inherited from TextLine

add_lazy_doc_id, #bold, #bold_and_italic, #format_string, #italic, #link

Methods inherited from TextLineBuilderContext

#bold, #bold_and_italic, #italic, #link

Constructor Details

#initialize(doc, is_ordered) ⇒ MarkdownList

Returns a new instance of MarkdownList.



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# File 'lib/almirah/doc_items/markdown_list.rb', line 10

def initialize(doc, is_ordered)
  super(doc)

  @rows = []
  @is_ordered = is_ordered
  @current_nesting_level = 0
  @indent_position = 0
  @text = ''

  @@lists_stack.push(self)
end

Instance Attribute Details

#current_nesting_level ⇒ Object

Returns the value of attribute current_nesting_level.



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# File 'lib/almirah/doc_items/markdown_list.rb', line 6

def current_nesting_level
  @current_nesting_level
end

#indent_position ⇒ Object

Returns the value of attribute indent_position.



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# File 'lib/almirah/doc_items/markdown_list.rb', line 6

def indent_position
  @indent_position
end

#is_ordered ⇒ Object

Returns the value of attribute is_ordered.



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# File 'lib/almirah/doc_items/markdown_list.rb', line 6

def is_ordered
  @is_ordered
end

#rows ⇒ Object

Returns the value of attribute rows.



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# File 'lib/almirah/doc_items/markdown_list.rb', line 6

def rows
  @rows
end

#text ⇒ Object

Returns the value of attribute text.



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# File 'lib/almirah/doc_items/markdown_list.rb', line 6

def text
  @text
end

Class Method Details

.ordered_list_item?(raw_text) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/almirah/doc_items/markdown_list.rb', line 115

def self.ordered_list_item?(raw_text)
  res = /\d[.]\s(.*)/.match(raw_text)
  return true if res

  false
end

.unordered_list_item?(raw_text) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/almirah/doc_items/markdown_list.rb', line 108

def self.unordered_list_item?(raw_text)
  res = /(\*\s?)(.*)/.match(raw_text)
  return true if res

  false
end

Instance Method Details

#add_row(raw_text) ⇒ Object 



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# File 'lib/almirah/doc_items/markdown_list.rb', line 22

def add_row(raw_text)
  pos = calculate_text_position(raw_text)
  row = raw_text[pos..-1]

  pos = calculate_indent_position(raw_text)

  if pos > @@lists_stack[-1].indent_position

    prev_lists_stack_item = @@lists_stack[-1]
    # the following line pushes new list to the lists_stack in the constructor!
    nested_list = MarkdownList.new(@parent_doc, MarkdownList.ordered_list_item?(raw_text))
    nested_list.current_nesting_level = @current_nesting_level + 1
    nested_list.indent_position = pos

    prev_row = prev_lists_stack_item.rows[-1]
    if prev_row.is_a?(MarkdownList)
    # cannot be there
    else
      nested_list.text = prev_row
      # puts "Length: " + prev_lists_stack_item.rows.length.to_s
      prev_lists_stack_item.rows[-1] = nested_list
    end

    nested_list.add_row(raw_text)

  elsif pos < @@lists_stack[-1].indent_position

    @@lists_stack.pop while pos < @@lists_stack[-1].indent_position
    @@lists_stack[-1].rows.append(row)

  else
    @@lists_stack[-1].rows.append(row)

  end
end

#calculate_indent_position(s) ⇒ Object 



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# File 'lib/almirah/doc_items/markdown_list.rb', line 58

def calculate_indent_position(s)
  s.downcase
  pos = 0
  s.each_char do |c|
    break if c != ' ' && c != '\t'

    pos += 1
  end
  pos
end

#calculate_text_position(s) ⇒ Object 



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# File 'lib/almirah/doc_items/markdown_list.rb', line 69

def calculate_text_position(s)
  s.downcase
  pos = 0
  state = 'looking_for_list_item_marker'
  s.each_char do |c|
    case state
    when 'looking_for_list_item_marker'
      if c == '*'
        state = 'looking_for_space'
      elsif numeric?(c)
        state = 'looking_for_dot'
      end
    when 'looking_for_dot'
      state = 'looking_for_space' if c == '.'
    when 'looking_for_space'
      state = 'looking_for_non_space' if [' ', '\t'].include?(c)
    when 'looking_for_non_space'
      if c != ' ' || c != '\t'
        state = 'list_item_text_pos_found'
        break
      end
    end
    pos += 1
  end
  pos
end

#letter?(c) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/almirah/doc_items/markdown_list.rb', line 96

def letter?(c)
  c.match?(/[[:alpha:]]/)
end

#non_blank?(c) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/almirah/doc_items/markdown_list.rb', line 104

def non_blank?(c)
  c.match?(/[[:graph:]]/)
end

#numeric?(c) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/almirah/doc_items/markdown_list.rb', line 100

def numeric?(c)
  c.match?(/[[:digit:]]/)
end

#to_html ⇒ Object 



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# File 'lib/almirah/doc_items/markdown_list.rb', line 122

def to_html
  s = ''
  if @@html_table_render_in_progress
    s += "</table>\n"
    @@html_table_render_in_progress = false
  end

  s += if @is_ordered
         "<ol>\n"
       else
         "<ul>\n"
       end

  @rows.each do |r|
    if r.is_a?(MarkdownList)
      f_text = format_string(r.text)
      s += "\t<li>#{f_text}\n"
      s += r.to_html
      s += "</li>\n"
    else
      f_text = format_string(r)
      # puts f_text
      s += "\t<li>#{f_text}</li>\n"
    end
  end

  s += if @is_ordered
         "</ol>\n"
       else
         "</ul>\n"
       end

  s
end