Add bin and edit workflow

bin/gems/rouge-4.5.1/lib/rouge/lexers/markdown.rb

@@ -0,0 +1,183 @@
+# -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
+module Rouge
+  module Lexers
+    class Markdown < RegexLexer
+      title "Markdown"
+      desc "Markdown, a light-weight markup language for authors"
+
+      tag 'markdown'
+      aliases 'md', 'mkd'
+      filenames '*.markdown', '*.md', '*.mkd'
+      mimetypes 'text/x-markdown'
+
+      def html
+        @html ||= HTML.new(options)
+      end
+
+      start { html.reset! }
+
+      edot = /\\.|[^\\\n]/
+
+      state :root do
+        # YAML frontmatter
+        rule(/\A(---\s*\n.*?\n?)^(---\s*$\n?)/m) { delegate YAML }
+
+        rule %r/\\./, Str::Escape
+
+        rule %r/^[\S ]+\n(?:---*)\n/, Generic::Heading
+        rule %r/^[\S ]+\n(?:===*)\n/, Generic::Subheading
+
+        rule %r/^#(?=[^#]).*?$/, Generic::Heading
+        rule %r/^##*.*?$/, Generic::Subheading
+
+        rule %r/^([ \t]*)(`{3,}|~{3,})([^\n]*\n)((.*?)(\n\1)(\2))?/m do |m|
+          name = m[3].strip
+          sublexer =
+            begin
+              Lexer.find_fancy(name.empty? ? "guess" : name, m[5], @options)
+            rescue Guesser::Ambiguous => e
+              e.alternatives.first.new(@options)
+            end
+
+          sublexer ||= PlainText.new(@options.merge(:token => Str::Backtick))
+          sublexer.reset!
+
+          token Text, m[1]
+          token Punctuation, m[2]
+          token Name::Label, m[3]
+          if m[5]
+            delegate sublexer, m[5]
+          end
+
+          token Text, m[6]
+
+          if m[7]
+            token Punctuation, m[7]
+          else
+            push do
+              rule %r/^([ \t]*)(#{m[2]})/ do |mb|
+                pop!
+                token Text, mb[1]
+                token Punctuation, mb[2]
+              end
+              rule %r/^.*\n/ do |mb|
+                delegate sublexer, mb[1]
+              end
+            end
+          end
+        end
+
+        rule %r/\n\n((    |\t).*?\n|\n)+/, Str::Backtick
+
+        rule %r/(`+)(?:#{edot}|\n)+?\1/, Str::Backtick
+
+        # various uses of * are in order of precedence
+
+        # line breaks
+        rule %r/^(\s*[*]){3,}\s*$/, Punctuation
+        rule %r/^(\s*[-]){3,}\s*$/, Punctuation
+
+        # bulleted lists
+        rule %r/^\s*[*+-](?=\s)/, Punctuation
+
+        # numbered lists
+        rule %r/^\s*\d+\./, Punctuation
+
+        # blockquotes
+        rule %r/^\s*>.*?$/, Generic::Traceback
+
+        # link references
+        # [foo]: bar "baz"
+        rule %r(^
+          (\s*) # leading whitespace
+          (\[) (#{edot}+?) (\]) # the reference
+          (\s*) (:) # colon
+        )x do
+          groups Text, Punctuation, Str::Symbol, Punctuation, Text, Punctuation
+
+          push :title
+          push :url
+        end
+
+        # links and images
+        rule %r/(!?\[)(#{edot}*?|[^\]]*?)(\])(?=[\[(])/ do
+          groups Punctuation, Name::Variable, Punctuation
+          push :link
+        end
+
+        rule %r/[*]{2}[^* \n][^*\n]*[*]{2}/, Generic::Strong
+        rule %r/[*]{3}[^* \n][^*\n]*[*]{3}/, Generic::EmphStrong
+        rule %r/__#{edot}*?__/, Generic::Strong
+
+        rule %r/[*]#{edot}*?[*]/, Generic::Emph
+        rule %r/_#{edot}*?_/, Generic::Emph
+
+        # Automatic links
+        rule %r/<.*?@.+[.].+>/, Name::Variable
+        rule %r[<(https?|mailto|ftp)://#{edot}*?>], Name::Variable
+
+        rule %r/[^\\`\[*\n&<]+/, Text
+
+        # inline html
+        rule(/&\S*;/) { delegate html }
+        rule(/<#{edot}*?>/) { delegate html }
+        rule %r/[&<]/, Text
+
+        # An opening square bracket that is not a link
+        rule %r/\[/, Text
+
+        rule %r/\n/, Text
+      end
+
+      state :link do
+        rule %r/(\[)(#{edot}*?)(\])/ do
+          groups Punctuation, Str::Symbol, Punctuation
+          pop!
+        end
+
+        rule %r/[(]/ do
+          token Punctuation
+          push :inline_title
+          push :inline_url
+        end
+
+        rule %r/[ \t]+/, Text
+
+        rule(//) { pop! }
+      end
+
+      state :url do
+        rule %r/[ \t]+/, Text
+
+        # the url
+        rule %r/(<)(#{edot}*?)(>)/ do
+          groups Name::Tag, Str::Other, Name::Tag
+          pop!
+        end
+
+        rule %r/\S+/, Str::Other, :pop!
+      end
+
+      state :title do
+        rule %r/"#{edot}*?"/, Name::Namespace
+        rule %r/'#{edot}*?'/, Name::Namespace
+        rule %r/[(]#{edot}*?[)]/, Name::Namespace
+        rule %r/\s*(?=["'()])/, Text
+        rule(//) { pop! }
+      end
+
+      state :inline_title do
+        rule %r/[)]/, Punctuation, :pop!
+        mixin :title
+      end
+
+      state :inline_url do
+        rule %r/[^<\s)]+/, Str::Other, :pop!
+        rule %r/\s+/m, Text
+        mixin :url
+      end
+    end
+  end
+end