Class: Redcarpet::Render::Console

Inherits:
Base
  • Object
show all
Includes:
CLIMarkdown::Colors, CLIMarkdown::Theme
Defined in:
lib/mdless/console.rb

Constant Summary collapse

@@listitemid = 
0
@@listid = 
0
@@elementid = 
0
@@footnotes = 
[]
@@headers = 
[]
[]
[]

Constants included from CLIMarkdown::Theme

CLIMarkdown::Theme::THEME_DEFAULTS

Constants included from CLIMarkdown::Colors

CLIMarkdown::Colors::COLORS, CLIMarkdown::Colors::ESCAPE_REGEX

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from CLIMarkdown::Theme

#load_theme, #load_theme_file

Methods included from CLIMarkdown::Colors

#blackout, #c, #last_color_code, #size_clean, #uncolor, #uncolor!, #wrap

Instance Attribute Details

#cols=(value) ⇒ Object (writeonly)

Sets the attribute cols

Parameters:

  • value —

    the value to set the attribute cols to.



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# File 'lib/mdless/console.rb', line 7

def cols=(value)
  @cols = value
end

#file=(value) ⇒ Object (writeonly)

Sets the attribute file

Parameters:

  • value —

    the value to set the attribute file to.



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# File 'lib/mdless/console.rb', line 7

def file=(value)
  @file = value
end

#log=(value) ⇒ Object (writeonly)

Sets the attribute log

Parameters:

  • value —

    the value to set the attribute log to.



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# File 'lib/mdless/console.rb', line 7

def log=(value)
  @log = value
end

#options=(value) ⇒ Object (writeonly)

Sets the attribute options

Parameters:

  • value —

    the value to set the attribute options to.



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# File 'lib/mdless/console.rb', line 7

def options=(value)
  @options = value
end

#theme=(value) ⇒ Object (writeonly)

Sets the attribute theme

Parameters:

  • value —

    the value to set the attribute theme to.



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# File 'lib/mdless/console.rb', line 7

def theme=(value)
  @theme = value
end

Instance Method Details



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# File 'lib/mdless/console.rb', line 280

def autolink(link, _)
  [
    pre_element,
    color('link brackets'),
    '<',
    color('link url'),
    link,
    color('link brackets'),
    '>',
    xc,
    post_element
  ].join('')
end

#block_code(code, language) ⇒ Object 



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# File 'lib/mdless/console.rb', line 146

def block_code(code, language)
  "\n\n#{hilite_code(code, language)}#{xc}\n\n"
end

#block_html(raw_html) ⇒ Object 



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# File 'lib/mdless/console.rb', line 164

def block_html(raw_html)
  "#{color('html color')}#{color_tags(raw_html)}#{xc}"
end

#block_quote(quote) ⇒ Object 



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# File 'lib/mdless/console.rb', line 150

def block_quote(quote)
  ret = "\n\n"
  quote.split("\n").each do |line|
    ret += [
      color('blockquote marker color'),
      @theme['blockquote']['marker']['character'],
      color('blockquote color'),
      line,
      "\n"
    ].join('')
  end
  "#{ret}\n\n"
end

#codespan(code) ⇒ Object 



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# File 'lib/mdless/console.rb', line 294

def codespan(code)
  [
    pre_element,
    color('code_span marker'),
    @theme['code_span']['character'],
    color('code_span color'),
    code,
    color('code_span marker'),
    @theme['code_span']['character'],
    xc,
    post_element
  ].join('')
end

#color(key) ⇒ Object 



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# File 'lib/mdless/console.rb', line 120

def color(key)
  val = nil
  keys = key.split(/[ ,>]/)
  if @theme.key?(keys[0])
    val = @theme[keys.shift]
  else
    @log.error("Invalid theme key: #{key}") unless keys[0] =~ /^text/
    return c([:reset])
  end
  keys.each do |k|
    if val.key?(k)
      val = val[k]
    else
      @log.error("Invalid theme key: #{k}")
      return c([:reset])
    end
  end
  if val.is_a? String
    val = "x #{val}"
    res = val.split(/ /).map(&:to_sym)
    c(res)
  else
    c([:reset])
  end
end

#color_dd_def(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 667

def color_dd_def(input)
  input.gsub(/(?<=\n|\A)(?::)\s+(.*)/) do
    m = Regexp.last_match
    [
      color('dd marker'),
      ": ",
      color('dd color'),
      m[1],
      xc
    ].join
  end
end

#color_footnote_def(idx) ⇒ Object 



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# File 'lib/mdless/console.rb', line 468

def color_footnote_def(idx)
  text = @@footnotes[idx]
  [
    color('footnote brackets'),
    "[",
    color('footnote caret'),
    "^",
    color('footnote title'),
    idx,
    color('footnote brackets'),
    "]:",
    color('footnote note'),
    ' ',
    text.uncolor.strip,
    xc,
    "\n"
  ].join('')
end

#color_image_tag(link, title, alt_text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 350

def color_image_tag(link, title, alt_text)
  [
    color('image bang'),
    '!',
    color('image brackets'),
    '[',
    color('image title'),
    alt_text,
    color('image brackets'),
    '](',
    color('image url'),
    link,
    title.nil? ? '' : %( "#{title}"),
    color('image brackets'),
    ')',
    xc,
  ].join
end

#color_link(link, title, content) ⇒ Object 



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# File 'lib/mdless/console.rb', line 377

def color_link(link, title, content)
  [
    pre_element,
    color('link brackets'),
    '[',
    color('link text'),
    content,
    color('link brackets'),
    '](',
    color('link url'),
    link,
    title.nil? ? '' : %( "#{title}"),
    color('link brackets'),
    ')',
    xc,
    post_element
  ].join
end

#color_link_reference(link, idx, content) ⇒ Object 



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# File 'lib/mdless/console.rb', line 396

def color_link_reference(link, idx, content)
  [
    pre_element,
    color('link brackets'),
    '[',
    color('link text'),
    content,
    color('link brackets'),
    '][',
    color('link url'),
    idx,
    color('link brackets'),
    ']',
    xc,
    post_element
  ].join
end

#color_links(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 680

def color_links(input)
  input.gsub(/(?mi)(?<!\\e)\[(?<text>[^\[]+)\]\((?<url>\S+)(?: +"(?<title>.*?)")?\)/) do
    m = Regexp.last_match
    color_link(m['url'].uncolor, m['title']&.uncolor, m['text'].uncolor)
  end
end

#color_meta(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 554

def color_meta(text)
  input = text.dup
  first_line = input.split("\n").first
  if first_line =~ /(?i-m)^---[ \t]*?$/
    @log.info('Found YAML')
    # YAML
    in_yaml = true
    input.sub!(/(?i-m)^---[ \t]*\n([\s\S]*?)\n[-.]{3}[ \t]*\n/m) do
      m = Regexp.last_match
      @log.info('Processing YAML Header')
      lines = m[0].split(/\n/)
      longest = lines.inject { |memo, word| memo.length > word.length ? memo : word }.length
      longest = longest < @cols ? longest + 1 : @cols
      lines.map do |line|
        if line =~ /^[-.]{3}\s*$/
          line = "#{color('metadata marker')}#{'%' * longest}"
        else
          line.sub!(/^(.*?:)[ \t]+(\S)/, '\1 \2')
          line = "#{color('metadata color')}#{line}"
        end

        line += "\u00A0" * (longest - line.uncolor.strip.length) + xc
        line
      end.join("\n") + "#{xc}\n"
    end
  end

  if !in_yaml && first_line =~ /(?i-m)^[\w ]+:\s+\S+/
    @log.info('Found MMD Headers')
    input.sub!(/(?i-m)^([\S ]+:[\s\S]*?)+(?=\n\n)/) do |mmd|
      lines = mmd.split(/\n/)
      return mmd if lines.count > 20

      longest = lines.inject { |memo, word| memo.length > word.length ? memo : word }.length
      longest = longest < @cols ? longest + 1 : @cols
      lines.map do |line|
        line.sub!(/^(.*?:)[ \t]+(\S)/, '\1 \2')
        line = "#{color('metadata color')}#{line}"
        line += "\u00A0" * (longest - line.uncolor.strip.length)
        line + xc
      end.join("\n") + "#{"\u00A0" * longest}#{xc}\n"
    end
  end

  input
end

#color_reference_link(link, title, content) ⇒ Object 



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# File 'lib/mdless/console.rb', line 414

def color_reference_link(link, title, content)
  [
    color('link brackets'),
    '[',
    color('link text'),
    content,
    color('link brackets'),
    ']:',
    color('text'),
    ' ',
    color('link url'),
    link,
    title.nil? ? '' : %( "#{title}"),
    xc
  ].join
end

#color_table(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 34

def color_table(input)
  first = true
  input.split(/\n/).map do |line|
    if first
      if line =~ /^\+-+/
        line.gsub!(/^/, color('table border'))
      else
        first = false
        line.gsub!(/\|/, "#{color('table border')}|#{color('table header')}")
      end
    elsif line.strip =~ /^[|:\- +]+$/
      line.gsub!(/^(.*)$/, "#{color('table border')}\\1#{color('table color')}")
      line.gsub!(/([:\-+]+)/, "#{color('table divider')}\\1#{color('table border')}")
    else
      line.gsub!(/\|/, "#{color('table border')}|#{color('table color')}")
    end
  end.join("\n")
end

#color_tags(html) ⇒ Object 



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# File 'lib/mdless/console.rb', line 442

def color_tags(html)
  html.gsub(%r{(<\S+( [^>]+)?>)}, "#{color('html brackets')}\\1#{xc}")
end

#double_emphasis(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 308

def double_emphasis(text)
  [
    pre_element,
    color('emphasis bold'),
    @theme['emphasis']['bold_character'],
    text,
    @theme['emphasis']['bold_character'],
    xc,
    post_element
  ].join
end

#emphasis(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 320

def emphasis(text)
  [
    pre_element,
    color('emphasis italic'),
    @theme['emphasis']['italic_character'],
    text,
    @theme['emphasis']['italic_character'],
    xc,
    post_element
  ].join
end

#exec_available(cli) ⇒ Object 



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# File 'lib/mdless/console.rb', line 53

def exec_available(cli)
  if File.exist?(File.expand_path(cli))
    File.executable?(File.expand_path(cli))
  else
    TTY::Which.exist?(cli)
  end
end

#fix_colors(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 725

def fix_colors(input)
  input.gsub(/<<pre(?<id>\d+)>>(?<content>.*?)<<post\k<id>>>/m) do
    m = Regexp.last_match
    pre = m.pre_match
    last_color = pre.last_color_code
    "#{fix_colors(m['content'])}#{last_color}"
  end.gsub(/<<(pre|post)\d+>>/, '')
end

#fix_equations(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 808

def fix_equations(input)
  input.gsub(/((\\\\\[|\$\$)(.*?)(\\\\\]|\$\$)|(\\\\\(|\$)(.*?)(\\\\\)|\$))/) do
    m = Regexp.last_match
    if m[2]
      brackets = [m[2], m[4]]
      equat = m[3]
    else
      brackets = [m[5], m[7]]
      equat = m[6]
    end
    [
      pre_element,
      color('math brackets'),
      brackets[0],
      xc,
      color('math equation'),
      equat,
      color('math brackets'),
      brackets[1],
      xc,
      post_element
    ].join
  end
end

#fix_lists(input, indent = 0) ⇒ Object 



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# File 'lib/mdless/console.rb', line 513

def fix_lists(input, indent = 0)
  input.gsub(%r{(?<line><<list(?<id>\d+)>>(?<content>.*?)<</list\k<id>>>)}m) do
    m = Regexp.last_match
    fix_lists(m['content'].split(/\n/).map do |l|
      outdent = l.scan(%r{<</list\d+>>}).count
      indent += l.scan(/<<list\d+>>/).count
      indent -= outdent
      "#{' ' * indent}#{l}"
    end.join("\n"), indent)
  end + "\n"
end

#footnote_def(text, idx) ⇒ Object 



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# File 'lib/mdless/console.rb', line 487

def footnote_def(text, idx)
  @@footnotes[idx] = text
end

#footnote_ref(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 491

def footnote_ref(text)
  [
    pre_element,
    color('footnote title'),
    "[^#{text}]",
    xc,
    post_element
  ].join('')
end

#footnotes(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 458

def footnotes(text)
  # [
  #   color('footnote note'),
  #   text,
  #   "\n",
  #   xc,
  # ].join('')
  nil
end

#get_headers(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 525

def get_headers(input)
  unless @@headers && !@@headers.empty?
    @@headers = []
    headers = input.scan(/^((?!#!)(\#{1,6})\s*([^#]+?)(?: #+)?\s*|(\S.+)\n([=-]+))$/i)

    headers.each do |h|
      hlevel = 6
      title = nil
      if h[4] =~ /=+/
        hlevel = 1
        title = h[3]
      elsif h[4] =~ /-+/
        hlevel = 2
        title = h[3]
      else
        hlevel = h[1].length
        title = h[2]
      end
      @@headers << [
        '#' * hlevel,
        title,
        h[0]
      ]
    end
  end

  @@headers
end

#header(text, header_level) ⇒ Object 



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# File 'lib/mdless/console.rb', line 168

def header(text, header_level)
  pad = ''
  ansi = ''
  case header_level
  when 1
    ansi = color('h1 color')
    pad = color('h1 pad')
    char = @theme['h1']['pad_char'] || '='
    pad += text.length + 2 > @cols ? char * text.length : char * (@cols - (text.length + 1))
  when 2
    ansi = color('h2 color')
    pad = color('h2 pad')
    char = @theme['h2']['pad_char'] || '-'
    pad += text.length + 2 > @cols ? char * text.length : char * (@cols - (text.length + 1))
  when 3
    ansi = color('h3 color')
  when 4
    ansi = color('h4 color')
  when 5
    ansi = color('h5 color')
  else
    ansi = color('h6 color')
  end

  # If we're in iTerm and not paginating, add
  # iTerm Marks for navigation on h1-3
  if header_level < 4 &&
     ENV['TERM_PROGRAM'] =~ /^iterm/i &&
     @options[:pager] == false
    ansi = "\e]1337;SetMark\a#{ansi}"
  end

  "\n#{xc}#{ansi}#{text} #{pad}#{xc}\n\n"
end

#highlight(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 346

def highlight(text)
  "#{pre_element}#{color('highlight')}#{text}#{xc}#{post_element}"
end

#highlight_tags(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 833

def highlight_tags(input)
  tag_color = color('at_tags tag')
  value_color = color('at_tags value')
  input.gsub(/(?<pre>\s|m)(?<tag>@[^ ("']+)(?:(?<lparen>\()(?<value>.*?)(?<rparen>\)))?/) do
    m = Regexp.last_match
    last_color = m.pre_match.last_color_code
    [
      m['pre'],
      tag_color,
      m['tag'],
      m['lparen'],
      value_color,
      m['value'],
      tag_color,
      m['rparen'],
      xc,
      last_color
    ].join
  end
end

#hilite_code(code_block, language) ⇒ Object 



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# File 'lib/mdless/console.rb', line 66

def hilite_code(code_block, language)
  @log.error('Syntax highlighting requested by pygmentize is not available') if @options[:syntax_higlight] && !exec_available('pygmentize')

  if @options[:syntax_higlight] && exec_available('pygmentize')
    lexer = language && valid_lexer?(language) ? "-l #{language}" : '-g'
    begin
      cmd = [
        'pygmentize -f terminal256',
        "-O style=#{@theme['code_block']['pygments_theme']}",
        lexer,
        '2> /dev/null'
      ].join(' ')
      hilite, s = Open3.capture2(cmd,
                                 stdin_data: code_block)
      if s.success?
        hilite = xc + hilite.split(/\n/).map do |l|
          [
            color('code_block marker'),
            '> ',
            "#{color('code_block bg')}#{l.strip}#{xc}"
          ].join
        end.join("\n").blackout(@theme['code_block']['bg']) + "#{xc}\n"
      end
    rescue StandardError => e
      @log.error(e)
      hilite = code_block
    end
  else
    hilite = code_block.split(/\n/).map do |line|
      [
        color('code_block marker'),
        '> ',
        color('code_block color'),
        line,
        xc
      ].join
    end.join("\n").blackout(@theme['code_block']['bg']) + "#{xc}\n"
  end

  [
    xc,
    color('code_block border'),
    '-' * @cols,
    xc,
    "\n",
    color('code_block color'),
    hilite.chomp,
    "\n",
    color('code_block border'),
    '-' * @cols,
    xc
  ].join
end

#hrule ⇒ Object 



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# File 'lib/mdless/console.rb', line 203

def hrule()
  "\n\n#{color('hr color')}#{'_' * @cols}#{xc}\n\n"
end

#image(link, title, alt_text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 369

def image(link, title, alt_text)
  "<<img>>#{link}||#{title}||#{alt_text}<</img>>"
end

#insert_footnotes(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 501

def insert_footnotes(input)
  input.split(/\n/).map do |line|
    notes = line.to_enum(:scan, /\[\^(?<ref>\d+)\]/).map { Regexp.last_match }
    if notes.count.positive?
      footnotes = notes.map { |n| color_footnote_def(n['ref'].to_i) }.join("\n")
      "#{line}\n\n#{footnotes}\n\n"
    else
      line
    end
  end.join("\n")
end

#linebreak ⇒ Object 



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# File 'lib/mdless/console.rb', line 373

def linebreak
  "  \n"
end

#link(link, title, content) ⇒ Object 



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# File 'lib/mdless/console.rb', line 431

def link(link, title, content)
  res = color_link(link, title, content)
  @@links << {
    link: res,
    url: link,
    title: title,
    content: content
  }
  res
end

#list(contents, list_type) ⇒ Object 



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# File 'lib/mdless/console.rb', line 207

def list(contents, list_type)
  @@listitemid = 0
  @@listid += 1
  "<<list#{@@listid}>>#{contents}<</list#{@@listid}>>"
end

#list_item(text, list_type) ⇒ Object 



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# File 'lib/mdless/console.rb', line 213

def list_item(text, list_type)
  case list_type
  when :unordered
    [
      "#{color('list bullet')}• ",
      color('list color'),
      text,
      xc
    ].join('')
  when :ordered
    @@listitemid += 1
    [
      color('list number'),
      "#{@@listitemid}. ",
      color('list color'),
      text,
      xc
    ].join('')
  end
end

#paragraph(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 234

def paragraph(text)
  "#{xc}#{text}#{xc}#{x}\n\n"
end

#post_element ⇒ Object 



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# File 'lib/mdless/console.rb', line 22

def post_element
  "<<post#{@@elementid}>>"
end

#postprocess(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 854

def postprocess(input)
  input.scrub!

  if @options[:inline_footnotes]
    input = insert_footnotes(input)
  else
    footnotes = @@footnotes.map.with_index do |fn, i|
      next if fn.nil?

      color_footnote_def(i)
    end.join("\n")
    input = "#{input}\n\n#{footnotes}"
  end
  # escaped characters
  input.gsub!(/\\(\S)/, '\1')
  # equations
  input = fix_equations(input)
  # misc html
  input.gsub!(%r{<br */?>}, "#{pre_element}\n#{post_element}")
  # format links
  input = reference_links(input) if @options[:links] == :reference || @options[:links] == :paragraph
  # lists
  input = fix_lists(input, 0)
  input = render_images(input) if @options[:local_images]
  input = highlight_tags(input) if @options[:at_tags] || @options[:taskpaper]
  fix_colors(input)
end

#pre_element ⇒ Object 



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# File 'lib/mdless/console.rb', line 17

def pre_element
  @@elementid += 1
  "<<pre#{@@elementid}>>"
end

#preprocess(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 601

def preprocess(input)
  in_yaml = false

  input = color_meta(input)

  ## Replace setex headers with ATX
  input.gsub!(/^([^\n]+)\n={2,}\s*$/m, "# \\1\n")
  input.gsub!(/^([^\n]+?)\n-{2,}\s*$/m, "## \\1\n")

  @@headers = get_headers(input)

  if @options[:section]
    new_content = []
    @options[:section].each do |sect|
      in_section = false
      top_level = 1
      input.split(/\n/).each do |graf|
        if graf =~ /^(#+) *(.*?)( *#+)?$/
          m = Regexp.last_match
          level = m[1].length
          title = m[2]
          if in_section
            if level >= top_level
              new_content.push(graf)
            else
              in_section = false
              break
            end
          elsif title.downcase == @@headers[sect - 1][1].downcase
            in_section = true
            top_level = level + 1
            new_content.push(graf)
          else
            next
          end
        elsif in_section
          new_content.push(graf)
        end
      end
    end
    input = new_content.join("\n")
  end

  # definition lists
  input.gsub!(/(?mi)(?<=\n|\A)(?<term>(?!<:)[^\n]+)(?<def>(\n+: [^\n]+)+)/) do
    m = Regexp.last_match
    "#{color('dd term')}#{m['term']}#{xc}#{color('dd color')}#{color_dd_def(m['def'])}"
  end

  if @options[:taskpaper] == :auto
    @options[:taskpaper] = if @file =~ /\.taskpaper/
                             @log.info('TaskPaper extension detected')
                             true
                           elsif CLIMarkdown::TaskPaper.is_taskpaper?(input)
                             @log.info('TaskPaper document detected')
                             true
                           else
                             false
                           end
  end

  input = CLIMarkdown::TaskPaper.highlight(input, @theme) if @options[:taskpaper]

  input
end

#raw_html(raw_html) ⇒ Object 



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# File 'lib/mdless/console.rb', line 446

def raw_html(raw_html)
  "#{pre_element}#{color('html color')}#{color_tags(raw_html)}#{xc}#{post_element}"
end

#reference_links(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 687

def reference_links(input)
  grafs = input.split(/\n{2,}/)
  counter = 1

  grafs.map! do |graf|
    next if graf =~ /^$/

    links_added = false

    @@links.each do |link|
      if graf =~ /#{Regexp.escape(link[:link])}/
        url = link[:url].uncolor
        content = link[:content]
        title = link[:title]&.uncolor
        graf.gsub!(/#{Regexp.escape(link[:link])}/, color_link_reference(url, counter, content))
        if @options[:links] == :paragraph
          if links_added
            graf += "\n#{color_reference_link(url, title, counter)}"
          else
            graf = "#{graf}\n\n#{color_reference_link(url, title, counter)}"
            links_added = true
          end
        else
          @@footer_links << color_reference_link(url, title, counter)
        end
        counter += 1
      end
    end
    "\n#{graf}\n"
  end

  if @options[:links] == :paragraph
    grafs.join("\n")
  else
    grafs.join("\n") + "\n#{@@footer_links.join("\n")}\n"
  end
end

#render_images(input) ⇒ Object 



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# File 'lib/mdless/console.rb', line 734

def render_images(input)
  input.gsub(%r{<<img>>(.*?)<</img>>}) do
    link, title, alt_text = Regexp.last_match(1).split(/\|\|/)

    if (exec_available('imgcat') || exec_available('chafa')) && @options[:local_images]
      if exec_available('imgcat')
        @log.info('Using imgcat for image rendering')
      elsif exec_available('chafa')
        @log.info('Using chafa for image rendering')
      end
      img_path = link
      if img_path =~ /^http/ && @options[:remote_images]
        if exec_available('imgcat')
          @log.info('Using imgcat for image rendering')
          begin
            res, s = Open3.capture2(%(curl -sS "#{img_path}" 2> /dev/null | imgcat))

            if s.success?
              pre = !alt_text.nil? ? "    #{c(%i[d blue])}[#{alt_text.strip}]\n" : ''
              post = !title.nil? ? "\n    #{c(%i[b blue])}-- #{title} --" : ''
              result = pre + res + post
            end
          rescue StandardError => e
            @log.error(e)
          end
        elsif exec_available('chafa')
          @log.info('Using chafa for image rendering')
          term = '-f sixels'
          term = ENV['TERMINAL_PROGRAM'] =~ /iterm/i ? '-f iterm' : term
          term = ENV['TERMINAL_PROGRAM'] =~ /kitty/i ? '-f kitty' : term
          FileUtils.rm_r '.mdless_tmp', force: true if File.directory?('.mdless_tmp')
          Dir.mkdir('.mdless_tmp')
          Dir.chdir('.mdless_tmp')
          `curl -SsO #{img_path} 2> /dev/null`
          tmp_img = File.basename(img_path)
          img = `chafa #{term} "#{tmp_img}"`
          pre = alt_text ? "    #{c(%i[d blue])}[#{alt_text.strip}]\n" : ''
          post = title ? "\n    #{c(%i[b blue])}-- #{tail} --" : ''
          result = pre + img + post
          Dir.chdir('..')
          FileUtils.rm_r '.mdless_tmp', force: true
        else
          @log.warn('No viewer for remote images')
        end
      else
        if img_path =~ %r{^[~/]}
          img_path = File.expand_path(img_path)
        elsif @file
          base = File.expand_path(File.dirname(@file))
          img_path = File.join(base, img_path)
        end
        if File.exist?(img_path)
          pre = !alt_text.nil? ? "    #{c(%i[d blue])}[#{alt_text.strip}]\n" : ''
          post = !title.nil? ? "\n    #{c(%i[b blue])}-- #{title} --" : ''
          if exec_available('imgcat')
            img = `imgcat "#{img_path}"`
          elsif exec_available('chafa')
            term = '-f sixels'
            term = ENV['TERMINAL_PROGRAM'] =~ /iterm/i ? '-f iterm' : term
            term = ENV['TERMINAL_PROGRAM'] =~ /kitty/i ? '-f kitty' : term
            img = `chafa #{term} "#{img_path}"`
          end
          result = pre + img + post
        end
      end
    end
    if result.nil?
      color_image_tag(link, title, alt_text)
    else
      "#{pre_element}#{result}#{xc}#{post_element}"
    end
  end
end

#strikethrough(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 450

def strikethrough(text)
  "#{pre_element}#{color('strikethrough')}#{text}#{xc}#{post_element}"
end

#superscript(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 454

def superscript(text)
  "#{pre_element}#{color('super')}^#{text}#{xc}#{post_element}"
end

#table(header, body) ⇒ Object 



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# File 'lib/mdless/console.rb', line 255

def table(header, body)
  formatted = CLIMarkdown::MDTableCleanup.new([
    "#{header}",
    table_header_row,
    "|\n",
    "#{body}\n\n"
  ].join(''))
  res = formatted.to_md
  "#{color_table(res)}\n"
  # res
end

#table_cell(content, alignment) ⇒ Object 



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# File 'lib/mdless/console.rb', line 272

def table_cell(content, alignment)
  @header_row ||= []
  if @table_cols && @header_row.count < @table_cols
    @header_row << alignment
  end
  %(#{content} |)
end

#table_header_row ⇒ Object 



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# File 'lib/mdless/console.rb', line 240

def table_header_row
  @header_row.map do |alignment|
    case alignment
    when :left
      '|:---'
    when :right
      '|---:'
    when :center
      '|:--:'
    else
      '|----'
    end
  end.join('') + '|'
end

#table_row(content) ⇒ Object 



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# File 'lib/mdless/console.rb', line 267

def table_row(content)
  @table_cols = content.scan(/\|/).count
  %(#{content}\n)
end

#triple_emphasis(text) ⇒ Object 



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# File 'lib/mdless/console.rb', line 332

def triple_emphasis(text)
  [
    pre_element,
    color('emphasis bold-italic'),
    @theme['emphasis']['italic_character'],
    @theme['emphasis']['bold_character'],
    text,
    @theme['emphasis']['bold_character'],
    @theme['emphasis']['italic_character'],
    xc,
    post_element
  ].join
end

#valid_lexer?(language) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdless/console.rb', line 61

def valid_lexer?(language)
  lexers = %w(Clipper XBase Cucumber cucumber Gherkin gherkin RobotFramework robotframework abap ada ada95ada2005 ahk antlr-as antlr-actionscript antlr-cpp antlr-csharp antlr-c# antlr-java antlr-objc antlr-perl antlr-python antlr-ruby antlr-rb antlr apacheconf aconf apache applescript as actionscript as3 actionscript3 aspectj aspx-cs aspx-vb asy asymptote autoit Autoit awk gawk mawk nawk basemake bash sh ksh bat bbcode befunge blitzmax bmax boo brainfuck bf bro bugs winbugs openbugs c-objdump c ca65 cbmbas ceylon cfengine3 cf3 cfm cfs cheetah spitfire clojure clj cmake cobol cobolfree coffee-script coffeescript common-lisp cl console control coq cpp c++ cpp-objdump c++-objdumb cxx-objdump croc csharp c# css+django css+jinja css+erb css+ruby css+genshitext css+genshi css+lasso css+mako css+myghty css+php css+smarty css cuda cu cython pyx d-objdump d dart delphi pas pascal objectpascal dg diff udiff django jinja dpatch dtd duel Duel Engine Duel View JBST jbst JsonML+BST dylan-console dylan-repl dylan-lid lid dylan ec ecl elixir ex exs erb erl erlang evoque factor fan fancy fy felix flx fortran fsharp gas genshi kid xml+genshi xml+kid genshitext glsl gnuplot go gooddata-cl gosu groff nroff man groovy gst haml HAML haskell hs haxeml hxml html+cheetah html+spitfire html+django html+jinja html+evoque html+genshi html+kid html+lasso html+mako html+myghty html+php html+smarty html+velocity html http hx haXe hybris hy idl iex ini cfg io ioke ik irc jade JADE jags java jlcon js+cheetah javascript+cheetah js+spitfire javascript+spitfire js+django javascript+django js+jinja javascript+jinja js+erb javascript+erb js+ruby javascript+ruby js+genshitext js+genshi javascript+genshitext javascript+genshi js+lasso javascript+lasso js+mako javascript+mako js+myghty javascript+myghty js+php javascript+php js+smarty javascript+smarty js javascript json jsp julia jl kconfig menuconfig linux-config kernel-config koka kotlin lasso lassoscript lhs literate-haskell lighty lighttpd live-script livescript llvm logos logtalk lua make makefile mf bsdmake mako maql mason matlab matlabsession minid modelica modula2 m2 monkey moocode moon moonscript mscgen msc mupad mxml myghty mysql nasm nemerle newlisp newspeak nginx nimrod nim nsis nsi nsh numpy objdump objective-c++ objectivec++ obj-c++ objc++ objective-c objectivec obj-c objc objective-j objectivej obj-j objj ocaml octave ooc opa openedge abl progress perl pl php php3 php4 php5 plpgsql postgresql postgres postscript pot po pov powershell posh ps1 prolog properties protobuf psql postgresql-console postgres-console puppet py3tb pycon pypylog pypy pytb python py sage python3 py3 qml Qt Meta Language Qt modeling Language racket rkt ragel-c ragel-cpp ragel-d ragel-em ragel-java ragel-objc ragel-ruby ragel-rb ragel raw rb ruby duby rbcon irb rconsole rout rd rebol redcode registry rhtml html+erb html+ruby rst rest restructuredtext rust sass SASS scala scaml SCAML scheme scm scilab scss shell-session smali smalltalk squeak smarty sml snobol sourceslist sources.list sp spec splus s r sql sqlite3 squidconf squid.conf squid ssp stan systemverilog sv tcl tcsh csh tea tex latex text trac-wiki moin treetop ts urbiscript vala vapi vb.net vbnet velocity verilog v vgl vhdl vim xml+cheetah xml+spitfire xml+django xml+jinja xml+erb xml+ruby xml+evoque xml+lasso xml+mako xml+myghty xml+php xml+smarty xml+velocity xml xquery xqy xq xql xqm xslt xtend yaml)
  lexers.include? language.strip
end

#x ⇒ Object 



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# File 'lib/mdless/console.rb', line 30

def x
  c([:reset])
end

#xc ⇒ Object 



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# File 'lib/mdless/console.rb', line 26

def xc
  x + color('text')
end