1 files changed, 0 insertions, 228 deletions
diff --git a/lib/rdoc/cross_reference.rb b/lib/rdoc/cross_reference.rb
deleted file mode 100644
index 4e011219e8..0000000000
--- a/lib/rdoc/cross_reference.rb
+++ /dev/null
@@ -1,228 +0,0 @@
-# frozen_string_literal: true
-
-require_relative 'markup/attribute_manager' # for PROTECT_ATTR
-
-##
-# RDoc::CrossReference is a reusable way to create cross references for names.
-
-class RDoc::CrossReference
-
-  ##
-  # Regular expression to match class references
-  #
-  # 1. There can be a '\\' in front of text to suppress the cross-reference
-  # 2. There can be a '::' in front of class names to reference from the
-  #    top-level namespace.
-  # 3. The method can be followed by parenthesis (not recommended)
-
-  CLASS_REGEXP_STR = '\\\\?((?:\:{2})?[A-Z]\w*(?:\:\:\w+)*)'
-
-  ##
-  # Regular expression to match a single method argument.
-
-  METHOD_ARG_REGEXP_STR = '[\w.+*/=<>-]+'
-
-  ##
-  # Regular expression to match method arguments.
-
-  METHOD_ARGS_REGEXP_STR = /(?:\((?:#{METHOD_ARG_REGEXP_STR}(?:,\s*#{METHOD_ARG_REGEXP_STR})*)?\))?/.source
-
-  ##
-  # Regular expression to match method references.
-  #
-  # See CLASS_REGEXP_STR
-
-  METHOD_REGEXP_STR = /(
-    (?!\d)[\w#{RDoc::Markup::AttributeManager::PROTECT_ATTR}]+[!?=]?|
-    %|=(?:==?|~)|![=~]|\[\]=?|<(?:<|=>?)?|>[>=]?|[-+!]@?|\*\*?|[\/%\`|&^~]
-  )#{METHOD_ARGS_REGEXP_STR}/.source.delete("\n ").freeze
-
-  ##
-  # Regular expressions matching text that should potentially have
-  # cross-reference links generated are passed to add_regexp_handling. Note
-  # that these expressions are meant to pick up text for which cross-references
-  # have been suppressed, since the suppression characters are removed by the
-  # code that is triggered.
-
-  CROSSREF_REGEXP = /(?:^|[\s()])
-                     (
-                      (?:
-                       # A::B::C.meth
-                       #{CLASS_REGEXP_STR}(?:[.#]|::)#{METHOD_REGEXP_STR}
-
-                       # A::B::C
-                       # The stuff after CLASS_REGEXP_STR is a
-                       # nasty hack.  CLASS_REGEXP_STR unfortunately matches
-                       # words like dog and cat (these are legal "class"
-                       # names in Fortran 95).  When a word is flagged as a
-                       # potential cross-reference, limitations in the markup
-                       # engine suppress other processing, such as typesetting.
-                       # This is particularly noticeable for contractions.
-                       # In order that words like "can't" not
-                       # be flagged as potential cross-references, only
-                       # flag potential class cross-references if the character
-                       # after the cross-reference is a space, sentence
-                       # punctuation, tag start character, or attribute
-                       # marker.
-                       | #{CLASS_REGEXP_STR}(?=[@\s).?!,;<\000]|\z)
-
-                       # Stand-alone method (preceded by a #)
-                       | \\?\##{METHOD_REGEXP_STR}
-
-                       # Stand-alone method (preceded by ::)
-                       | ::#{METHOD_REGEXP_STR}
-
-                       # Things that look like filenames
-                       # The key thing is that there must be at least
-                       # one special character (period, slash, or
-                       # underscore).
-                       | (?:\.\.\/)*[-\/\w]+[_\/.][-\w\/.]+
-
-                       # Things that have markup suppressed
-                       # Don't process things like '\<' in \<tt>, though.
-                       # TODO: including < is a hack, not very satisfying.
-                       | \\[^\s<]
-                      )
-
-                      # labels for headings
-                      (?:@[\w+%-]+(?:\.[\w|%-]+)?)?
-                     )/x
-
-  ##
-  # Version of CROSSREF_REGEXP used when <tt>--hyperlink-all</tt> is specified.
-
-  ALL_CROSSREF_REGEXP = /
-                     (?:^|[\s()])
-                     (
-                      (?:
-                       # A::B::C.meth
-                       #{CLASS_REGEXP_STR}(?:[.#]|::)#{METHOD_REGEXP_STR}
-
-                       # A::B::C
-                       | #{CLASS_REGEXP_STR}(?=[@\s).?!,;<\000]|\z)
-
-                       # Stand-alone method
-                       | \\?#{METHOD_REGEXP_STR}
-
-                       # Things that look like filenames
-                       | (?:\.\.\/)*[-\/\w]+[_\/.][-\w\/.]+
-
-                       # Things that have markup suppressed
-                       | \\[^\s<]
-                      )
-
-                      # labels for headings
-                      (?:@[\w+%-]+)?
-                     )/x
-
-  ##
-  # Hash of references that have been looked-up to their replacements
-
-  attr_accessor :seen
-
-  ##
-  # Allows cross-references to be created based on the given +context+
-  # (RDoc::Context).
-
-  def initialize context
-    @context = context
-    @store   = context.store
-
-    @seen = {}
-  end
-
-  ##
-  # Returns a method reference to +name+.
-
-  def resolve_method name
-    ref = nil
-
-    if /#{CLASS_REGEXP_STR}([.#]|::)#{METHOD_REGEXP_STR}/o =~ name then
-      type = $2
-      if '.' == type # will find either #method or ::method
-        method = $3
-      else
-        method = "#{type}#{$3}"
-      end
-      container = @context.find_symbol_module($1)
-    elsif /^([.#]|::)#{METHOD_REGEXP_STR}/o =~ name then
-      type = $1
-      if '.' == type
-        method = $2
-      else
-        method = "#{type}#{$2}"
-      end
-      container = @context
-    else
-      type = nil
-      container = nil
-    end
-
-    if container then
-      unless RDoc::TopLevel === container then
-        if '.' == type then
-          if 'new' == method then # AnyClassName.new will be class method
-            ref = container.find_local_symbol method
-            ref = container.find_ancestor_local_symbol method unless ref
-          else
-            ref = container.find_local_symbol "::#{method}"
-            ref = container.find_ancestor_local_symbol "::#{method}" unless ref
-            ref = container.find_local_symbol "##{method}" unless ref
-            ref = container.find_ancestor_local_symbol "##{method}" unless ref
-          end
-        else
-          ref = container.find_local_symbol method
-          ref = container.find_ancestor_local_symbol method unless ref
-        end
-      end
-    end
-
-    ref
-  end
-
-  ##
-  # Returns a reference to +name+.
-  #
-  # If the reference is found and +name+ is not documented +text+ will be
-  # returned.  If +name+ is escaped +name+ is returned.  If +name+ is not
-  # found +text+ is returned.
-
-  def resolve name, text
-    return @seen[name] if @seen.include? name
-
-    ref = case name
-          when /^\\(#{CLASS_REGEXP_STR})$/o then
-            @context.find_symbol $1
-          else
-            @context.find_symbol name
-          end
-
-    ref = resolve_method name unless ref
-
-    # Try a page name
-    ref = @store.page name if not ref and name =~ /^[\w.]+$/
-
-    ref = nil if RDoc::Alias === ref # external alias, can't link to it
-
-    out = if name == '\\' then
-            name
-          elsif name =~ /^\\/ then
-            # we remove the \ only in front of what we know:
-            # other backslashes are treated later, only outside of <tt>
-            ref ? $' : name
-          elsif ref then
-            if ref.display? then
-              ref
-            else
-              text
-            end
-          else
-            text
-          end
-
-    @seen[name] = out
-
-    out
-  end
-
-end