Add bin and edit workflow

bin/gems/rouge-4.7.0/lib/rouge/lexers/sed.rb

@@ -0,0 +1,173 @@
+# -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
+module Rouge
+  module Lexers
+    class Sed < RegexLexer
+      title "sed"
+      desc 'sed, the ultimate stream editor'
+
+      tag 'sed'
+      filenames '*.sed'
+      mimetypes 'text/x-sed'
+
+      def self.detect?(text)
+        return true if text.shebang? 'sed'
+      end
+
+      class Regex < RegexLexer
+        state :root do
+          rule %r/\\./, Str::Escape
+          rule %r/\[/, Punctuation, :brackets
+          rule %r/[$^.*]/, Operator
+          rule %r/[()]/, Punctuation
+          rule %r/./, Str::Regex
+        end
+
+        state :brackets do
+          rule %r/\^/ do
+            token Punctuation
+            goto :brackets_int
+          end
+
+          rule(//) { goto :brackets_int }
+        end
+
+        state :brackets_int do
+          # ranges
+          rule %r/.-./, Name::Variable
+          rule %r/\]/, Punctuation, :pop!
+          rule %r/./, Str::Regex
+        end
+      end
+
+      class Replacement < RegexLexer
+        state :root do
+          rule %r/\\./m, Str::Escape
+          rule %r/&/, Operator
+          rule %r/[^\\&]+/m, Text
+        end
+      end
+
+      def regex
+        @regex ||= Regex.new(options)
+      end
+
+      def replacement
+        @replacement ||= Replacement.new(options)
+      end
+
+      start { regex.reset!; replacement.reset! }
+
+      state :whitespace do
+        rule %r/\s+/m, Text
+        rule(/#.*?\n/) { token Comment; reset_stack }
+        rule(/\n/) { token Text; reset_stack }
+        rule(/;/) { token Punctuation; reset_stack }
+      end
+
+      state :root do
+        mixin :addr_range
+      end
+
+      edot = /\\.|./m
+
+      state :command do
+        mixin :whitespace
+
+        # subst and transliteration
+        rule %r/(s)(.)(#{edot}*?)(\2)(#{edot}*?)(\2)/m do |m|
+          token Keyword, m[1]
+          token Punctuation, m[2]
+          delegate regex, m[3]
+          token Punctuation, m[4]
+          delegate replacement, m[5]
+          token Punctuation, m[6]
+
+
+          goto :flags
+        end
+
+        rule %r/(y)(.)(#{edot}*?)(\2)(#{edot}*?)(\2)/m do |m|
+          token Keyword, m[1]
+          token Punctuation, m[2]
+          delegate replacement, m[3]
+          token Punctuation, m[4]
+          delegate replacement, m[5]
+          token Punctuation, m[6]
+
+          pop!
+        end
+
+        # commands that take a text segment as an argument
+        rule %r/([aic])(\s*)/ do
+          groups Keyword, Text; goto :text
+        end
+
+        rule %r/[pd]/, Keyword
+
+        # commands that take a number argument
+        rule %r/([qQl])(\s+)(\d+)/i do
+          groups Keyword, Text, Num
+          pop!
+        end
+
+        # no-argument commands
+        rule %r/[={}dDgGhHlnpPqx]/, Keyword, :pop!
+
+        # commands that take a filename argument
+        rule %r/([rRwW])(\s+)(\S+)/ do
+          groups Keyword, Text, Name
+          pop!
+        end
+
+        # commands that take a label argument
+        rule %r/([:btT])(\s+)(\S+)/ do
+          groups Keyword, Text, Name::Label
+          pop!
+        end
+      end
+
+      state :addr_range do
+        mixin :whitespace
+
+        ### address ranges ###
+        addr_tok = Keyword::Namespace
+        rule %r/\d+/, addr_tok
+        rule %r/[$,~+!]/, addr_tok
+
+        rule %r((/)((?:\\.|.)*?)(/)) do |m|
+          token addr_tok, m[1]; delegate regex, m[2]; token addr_tok, m[3]
+        end
+
+        # alternate regex rage delimiters
+        rule %r((\\)(.)((?:\\.|.)*?)(\2)) do |m|
+          token addr_tok, m[1] + m[2]
+          delegate regex, m[3]
+          token addr_tok, m[4]
+        end
+
+        rule(//) { push :command }
+      end
+
+      state :text do
+        rule %r/[^\\\n]+/, Str
+        rule %r/\\\n/, Str::Escape
+        rule %r/\\/, Str
+        rule %r/\n/, Text, :pop!
+      end
+
+      state :flags do
+        rule %r/[gp]+/, Keyword, :pop!
+
+        # writing to a file with the subst command.
+        # who'da thunk...?
+        rule %r/([wW])(\s+)(\S+)/ do
+          token Keyword; token Text; token Name
+        end
+
+        rule(//) { pop! }
+      end
+    end
+  end
+end