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Diffstat (limited to 'ruby_1_8_6/lib/rexml/entity.rb')
| -rw-r--r-- | ruby_1_8_6/lib/rexml/entity.rb | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/ruby_1_8_6/lib/rexml/entity.rb b/ruby_1_8_6/lib/rexml/entity.rb deleted file mode 100644 index ff2d45f39b..0000000000 --- a/ruby_1_8_6/lib/rexml/entity.rb +++ /dev/null @@ -1,165 +0,0 @@ -require 'rexml/child' -require 'rexml/source' -require 'rexml/xmltokens' - -module REXML - # God, I hate DTDs. I really do. Why this idiot standard still - # plagues us is beyond me. - class Entity < Child - include XMLTokens - PUBIDCHAR = "\x20\x0D\x0Aa-zA-Z0-9\\-()+,./:=?;!*@$_%#" - SYSTEMLITERAL = %Q{((?:"[^"]*")|(?:'[^']*'))} - PUBIDLITERAL = %Q{("[#{PUBIDCHAR}']*"|'[#{PUBIDCHAR}]*')} - EXTERNALID = "(?:(?:(SYSTEM)\\s+#{SYSTEMLITERAL})|(?:(PUBLIC)\\s+#{PUBIDLITERAL}\\s+#{SYSTEMLITERAL}))" - NDATADECL = "\\s+NDATA\\s+#{NAME}" - PEREFERENCE = "%#{NAME};" - ENTITYVALUE = %Q{((?:"(?:[^%&"]|#{PEREFERENCE}|#{REFERENCE})*")|(?:'([^%&']|#{PEREFERENCE}|#{REFERENCE})*'))} - PEDEF = "(?:#{ENTITYVALUE}|#{EXTERNALID})" - ENTITYDEF = "(?:#{ENTITYVALUE}|(?:#{EXTERNALID}(#{NDATADECL})?))" - PEDECL = "<!ENTITY\\s+(%)\\s+#{NAME}\\s+#{PEDEF}\\s*>" - GEDECL = "<!ENTITY\\s+#{NAME}\\s+#{ENTITYDEF}\\s*>" - ENTITYDECL = /\s*(?:#{GEDECL})|(?:#{PEDECL})/um - - attr_reader :name, :external, :ref, :ndata, :pubid - - # Create a new entity. Simple entities can be constructed by passing a - # name, value to the constructor; this creates a generic, plain entity - # reference. For anything more complicated, you have to pass a Source to - # the constructor with the entity definiton, or use the accessor methods. - # +WARNING+: There is no validation of entity state except when the entity - # is read from a stream. If you start poking around with the accessors, - # you can easily create a non-conformant Entity. The best thing to do is - # dump the stupid DTDs and use XMLSchema instead. - # - # e = Entity.new( 'amp', '&' ) - def initialize stream, value=nil, parent=nil, reference=false - super(parent) - @ndata = @pubid = @value = @external = nil - if stream.kind_of? Array - @name = stream[1] - if stream[-1] == '%' - @reference = true - stream.pop - else - @reference = false - end - if stream[2] =~ /SYSTEM|PUBLIC/ - @external = stream[2] - if @external == 'SYSTEM' - @ref = stream[3] - @ndata = stream[4] if stream.size == 5 - else - @pubid = stream[3] - @ref = stream[4] - end - else - @value = stream[2] - end - else - @reference = reference - @external = nil - @name = stream - @value = value - end - end - - # Evaluates whether the given string matchs an entity definition, - # returning true if so, and false otherwise. - def Entity::matches? string - (ENTITYDECL =~ string) == 0 - end - - # Evaluates to the unnormalized value of this entity; that is, replacing - # all entities -- both %ent; and &ent; entities. This differs from - # +value()+ in that +value+ only replaces %ent; entities. - def unnormalized - v = value() - return nil if v.nil? - @unnormalized = Text::unnormalize(v, parent) - @unnormalized - end - - #once :unnormalized - - # Returns the value of this entity unprocessed -- raw. This is the - # normalized value; that is, with all %ent; and &ent; entities intact - def normalized - @value - end - - # Write out a fully formed, correct entity definition (assuming the Entity - # object itself is valid.) - # - # out:: - # An object implementing <TT><<<TT> to which the entity will be - # output - # indent:: - # *DEPRECATED* and ignored - def write out, indent=-1 - out << '<!ENTITY ' - out << '% ' if @reference - out << @name - out << ' ' - if @external - out << @external << ' ' - if @pubid - q = @pubid.include?('"')?"'":'"' - out << q << @pubid << q << ' ' - end - q = @ref.include?('"')?"'":'"' - out << q << @ref << q - out << ' NDATA ' << @ndata if @ndata - else - q = @value.include?('"')?"'":'"' - out << q << @value << q - end - out << '>' - end - - # Returns this entity as a string. See write(). - def to_s - rv = '' - write rv - rv - end - - PEREFERENCE_RE = /#{PEREFERENCE}/um - # Returns the value of this entity. At the moment, only internal entities - # are processed. If the value contains internal references (IE, - # %blah;), those are replaced with their values. IE, if the doctype - # contains: - # <!ENTITY % foo "bar"> - # <!ENTITY yada "nanoo %foo; nanoo> - # then: - # doctype.entity('yada').value #-> "nanoo bar nanoo" - def value - if @value - matches = @value.scan(PEREFERENCE_RE) - rv = @value.clone - if @parent - matches.each do |entity_reference| - entity_value = @parent.entity( entity_reference[0] ) - rv.gsub!( /%#{entity_reference};/um, entity_value ) - end - end - return rv - end - nil - end - end - - # This is a set of entity constants -- the ones defined in the XML - # specification. These are +gt+, +lt+, +amp+, +quot+ and +apos+. - module EntityConst - # +>+ - GT = Entity.new( 'gt', '>' ) - # +<+ - LT = Entity.new( 'lt', '<' ) - # +&+ - AMP = Entity.new( 'amp', '&' ) - # +"+ - QUOT = Entity.new( 'quot', '"' ) - # +'+ - APOS = Entity.new( 'apos', "'" ) - end -end |