Class: JekyllPreModule::PreTagBlock

Inherits:
JekyllSupport::JekyllBlock
  • Object
show all
Includes:
JekyllPreVersion
Defined in:
lib/pre_tag_block.rb

Constant Summary collapse

@@prefix = 
"<button class='copyBtn' data-clipboard-target="
@@suffix = 
" title='Copy to clipboard'><img src='/assets/images/clippy.svg' " \
"alt='Copy to clipboard' style='width: 13px'></button>"

Constants included from JekyllPreVersion

JekyllPreVersion::VERSION

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.highlight(content, pattern) ⇒ Object 



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# File 'lib/pre_tag_block.rb', line 13

def self.highlight(content, pattern)
  content.gsub(Regexp.new(pattern), "<span class='bg_yellow'>\\0</span>")
end

.make_copy_button(pre_id) ⇒ Object 



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# File 'lib/pre_tag_block.rb', line 17

def self.make_copy_button(pre_id)
  "#{@@prefix}'##{pre_id}'#{@@suffix}"
end

.number_content(content, start_value) ⇒ Object 



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# File 'lib/pre_tag_block.rb', line 30

def self.number_content(content, start_value)
  lines = content.split("\n")
  digits = lines.length.to_s.length
  i = PreTagBlock.positive_int?(start_value) ? start_value.to_i : 1
  numbered_content = lines.map do |line|
    number = i.to_s.rjust(digits, ' ')
    i += 1
    "<span class='unselectable numbered_line'> #{number}: </span>#{line}"
  end
  result = numbered_content.join("\n")
  result += "\n" unless result.end_with?("\n")
  result
end

.positive_int?(x) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pre_tag_block.rb', line 21

def self.positive_int?(x)
  value = begin
    Integer(x)
  rescue StandardError
    false
  end
  value.is_a?(Integer) && value.positive?
end

.remove_surrounding(text) ⇒ Object

remove leading blank lines and trailing whitespace



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# File 'lib/pre_tag_block.rb', line 45

def self.remove_surrounding(text)
  text.gsub(/\A(\s?\n)*/, '').rstrip
end

Instance Method Details

#option(name) ⇒ Object 



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# File 'lib/pre_tag_block.rb', line 49

def option(name)
  value = @helper.parameter_specified? name
  return value unless value.nil?

  @pre_config[name] if @pre_config
end

#render_impl(text) ⇒ Object 



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# File 'lib/pre_tag_block.rb', line 56

def render_impl(text)
  text = PreTagBlock.remove_surrounding text

  @helper.gem_file __FILE__ # Enables plugin attribution

  @pre_config = @config['pre']

  @class            = option 'class'
  @clear            = option 'clear'
  @dark             = ' dark' if option 'dark'
  @dedent           = option 'dedent'
  @highlight        = option 'highlight'
  @id               = option 'id'
  @make_copy_button = option 'copyButton'
  @number_lines     = option 'number'
  @style            = option 'style'
  @wrapper_class    = option 'wrapper_class'
  @wrapper_style    = option 'wrapper_style'

  @class = @class ? " #{@class}" : ''
  @style = @style ? " style='#{@style}'" : ''
  @wrapper_class = @wrapper_class ? " #{@wrapper_class}" : ''
  @wrapper_style = @wrapper_style ? " style='#{@wrapper_style}'" : ''

  # If a label was specified, use it, otherwise concatenate any dangling parameters and use that as the label
  label_implicit = @helper.argv.join(' ')
  label_option   = option 'label'
  @label = label_option && label_option.to_s != 'true' ? label_option : label_implicit

  @logger.debug { "@make_copy_button = '#{@make_copy_button}'; @label = '#{@label}'" }

  text = text.dedent if @dedent
  make_pre(text)
end