Class: TextLine

Inherits:
Object
  • Object
show all
Defined in:
lib/almirah/doc_items/text_line.rb

Direct Known Subclasses

ControlledTableColumn, DocItem

Constant Summary collapse

@@lazy_doc_id_dict = 
Hash.new

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.add_lazy_doc_id(id) ⇒ Object 



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# File 'lib/almirah/doc_items/text_line.rb', line 5

def self.add_lazy_doc_id(id)
    doc_id = id.to_s.downcase
    @@lazy_doc_id_dict[doc_id] = doc_id
end

Instance Method Details

#bold(str) ⇒ Object 



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# File 'lib/almirah/doc_items/text_line.rb', line 147

def bold(str)
    "<b>#{str}</b>"
end

#bold_and_italic(str) ⇒ Object 



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# File 'lib/almirah/doc_items/text_line.rb', line 151

def bold_and_italic(str)
    "<b><i>#{str}</i></b>"
end

#change_state(c, cur_state, new_state) ⇒ Object 



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# File 'lib/almirah/doc_items/text_line.rb', line 138

def change_state(c, cur_state, new_state)
    # puts "[#{c}] Transition: #{cur_state} --> #{new_state}"
    return cur_state, new_state
end

#format_string(str) ⇒ Object 



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

def format_string(str)
    state = 'default'
    prev_state = 'default'
    result = ''
    stack = ''
    prev_c = ''
    link_text = ''
    link_url = ''
    str.each_char do |c|
        if c == '*'
            if state == 'default'
                prev_state, state = change_state(c, state, 'first_asterisk_detected')

            elsif state == 'first_asterisk_detected'
                prev_state, state = change_state(c, state, 'second_asterisk_detected')
            
            elsif state == 'second_asterisk_detected'
                prev_state, state = change_state(c, state, 'third_asterisk_detected')
            
            elsif state == 'second_asterisk_detected'
                prev_state, state = change_state(c, state, 'third_asterisk_detected')

            elsif state == 'italic_started'
                prev_state, state = change_state(c, state, 'default')
                result += italic(stack)

            elsif state == 'bold_started'
                prev_state, state = change_state(c, state, 'first_asterisk_after_bold_detected')

            elsif state == 'first_asterisk_after_bold_detected'
                prev_state, state = change_state(c, state, 'default')
                result += bold(stack)

            elsif state == 'bold_and_italic_started'
                prev_state, state = change_state(c, state, 'first_asterisk_after_bold_and_italic_detected')

            elsif state == 'first_asterisk_after_bold_and_italic_detected'
                prev_state, state = change_state(c, state, 'second_asterisk_after_bold_and_italic_detected')

            elsif state == 'second_asterisk_after_bold_and_italic_detected'
                prev_state, state = change_state(c, state, 'default')
                result += bold_and_italic(stack)

            else
            end
        elsif c == '['
            if state == 'default'
                prev_state, state = change_state(c, state, 'square_bracket_left_detected')
            else
            end
        elsif c == ']'
            if state == 'square_bracket_left_detected'
                prev_state, state = change_state(c, state, 'default')
                result += '[]'

            elsif state == 'link_text_started'
                prev_state, state = change_state(c, state, 'square_bracket_right_detected')
                link_text = stack

            else
            end
        elsif c == '('
            if state == 'square_bracket_right_detected'
                prev_state, state = change_state(c, state, 'brace_left_detected')
            else
                result += c
            end
        elsif c == ')'
            if state == 'brace_left_detected'
                prev_state, state = change_state(c, state, 'default')
                result += '()'

            elsif state == 'link_url_started'
                prev_state, state = change_state(c, state, 'default')
                link_url = stack
                result += link(link_text, link_url)

            else
                result += c
            end
        else
            if state == 'default'
                result += c
            else
                if state == 'first_asterisk_detected'
                    prev_state, state = change_state(c, state, 'italic_started')
                    stack = ''

                elsif state == 'second_asterisk_detected'
                    prev_state, state = change_state(c, state, 'bold_started')
                    stack = ''

                elsif state == 'third_asterisk_detected'
                    prev_state, state = change_state(c, state, 'bold_and_italic_started')
                    stack = ''
                
                elsif state == 'first_asterisk_after_bold_detected'
                    prev_state, state = change_state(c, state, 'bold_started')

                elsif state == 'first_asterisk_after_bold_and_italic_detected'
                    prev_state, state = change_state(c, state, 'bold_and_italic_started')

                elsif state == 'second_asterisk_after_bold_and_italic_detected'
                    prev_state, state = change_state(c, state, 'bold_and_italic_started')

                elsif state == 'square_bracket_left_detected'
                    prev_state, state = change_state(c, state, 'link_text_started')
                    stack = ''

                elsif state == 'square_bracket_right_detected'
                    prev_state, state = change_state(c, state, 'default')
                    result += stack + c
                    c = ''

                elsif state == 'brace_left_detected'
                    prev_state, state = change_state(c, state, 'link_url_started')
                    stack = ''

                else
                end
                stack += c
            end
        end
        prev_c = c
    end
    return result
end

#italic(str) ⇒ Object 



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# File 'lib/almirah/doc_items/text_line.rb', line 143

def italic(str)
    "<i>#{str}</i>"
end

#link(link_text, link_url) ⇒ Object 



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# File 'lib/almirah/doc_items/text_line.rb', line 155

def link(link_text, link_url)

    # define default result first
    result = "<a href=\"#{link_url}\" class=\"external\">#{link_text}</a>"

    lazy_doc_id, anchor = nil, nil

    if res = /(\w+)[.]md$/.match(link_url)          #link
        lazy_doc_id = res[1].to_s.downcase

    elsif res = /(\w*)[.]md(#.*)$/.match(link_url)  # link with anchor
        if res && res.length > 2
            lazy_doc_id = res[1]
            anchor = res[2]
        end
    end

    if lazy_doc_id
        if @@lazy_doc_id_dict.has_key?(lazy_doc_id)
            if anchor
                result = "<a href=\".\\..\\#{lazy_doc_id}\\#{lazy_doc_id}.html#{anchor}\" class=\"external\">#{link_text}</a>"
            else
                result = "<a href=\".\\..\\#{lazy_doc_id}\\#{lazy_doc_id}.html\" class=\"external\">#{link_text}</a>"
            end
        end
    end
    return result
end