pry highlighting

banister.rb

process_comment_markup = lambda do |comment, code_type|
  if Pry.color
    comment.gsub!(/<code>(?:\s*\n)?(.*?)\s*<\/code>/m) { CodeRay.scan($1, code_type).term }
    {"(?:em|i)" => 32, "(?:strong|b)" => 34}.each_pair do |tag, color|
      comment.gsub!(/<#{tag}>(?:\s*\n)?(.*?)\s*<\/#{tag}>/m) { console_colorize($1, color) }
    end
    {"\\+" => 34, "_" => 32}.each_pair do |tag, color|
      comment.gsub!(/\B#{tag}[^\s]+?#{tag}\B/)  { console_colorize($1, color) }
    end
    comment.gsub!(/((?:^[ \t]+.+(?:\n+|\Z)/)  { CodeRay.scan($1, code_type).term }
  end

  comment
end

def console_colorize(string, color)
  "\e[#{color}m#{string}\e[0m"
end

irb(main):083:0> str = "--
irb(main):084:0" From Ruby Core (C Method):
irb(main):085:0" --
irb(main):086:0" Passes each entry in enum to block. Returns the
irb(main):087:0" first for which block is not false. If no
irb(main):088:0" object matches, calls ifnone and returns its result when it
irb(main):089:0" is specified, or returns nil
irb(main):090:0"
<.detect {|i| i % 5 == 0 and i % 7 == 0 } #=> nil
irb(main):092:0" (1..100).detect {|i| i % 5 == 0 and i % 7 == 0 } #=> 35
irb(main):093:0" "
=> "--\nFrom Ruby Core (C Method):\n--\nPasses each entry in enum to block. Retu
rns the\nfirst for which block is not false. If no\nobject matches, calls ifnon
e and returns its result when it\nis specified, or returns nil\n\n (1..10).det
ect {|i| i % 5 == 0 and i % 7 == 0 } #=> nil\n (1..100).detect {|i| i % 5 =
= 0 and i % 7 == 0 } #=> 35\n"
irb(main):094:0> str.gsub(/((?:^[ \t]+.+(?:\n+|\Z))+)/) { "[[#{$1}]]" }
=> "--\nFrom Ruby Core (C Method):\n--\nPasses each entry in enum to block. Retu
rns the\nfirst for which block is not false. If no\nobject matches, calls ifnon
e and returns its result when it\nis specified, or returns nil\n\n[[ (1..10).d
etect {|i| i % 5 == 0 and i % 7 == 0 } #=> nil\n (1..100).detect {|i| i % 5
== 0 and i % 7 == 0 } #=> 35\n]]"