mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
85bae86cb6
warning. [ruby-core:20612] * lib/irb/completion.rb, lib/net/imap.rb, lib/prime.rb, lib/rinda/ring.rb, lib/racc/parser.rb, lib/shell/command-processor.rb, lib/yaml/yamlnode.rb: ditto. * lib/racc/parser.rb: remove space before parentheses. * lib/shell/command-processor.rb, lib/shell/process-controller.rb: use parentheses around arguments. * lib/irb/ext/change-ws.rb, lib/rexml/validation/relaxng.rb, lib/yaml/baseemitter.rb: indentation fix. * lib/matrix.rb: small cosmetic change. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20859 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
559 lines
15 KiB
Ruby
559 lines
15 KiB
Ruby
require "rexml/validation/validation"
|
|
require "rexml/parsers/baseparser"
|
|
|
|
module REXML
|
|
module Validation
|
|
# Implemented:
|
|
# * empty
|
|
# * element
|
|
# * attribute
|
|
# * text
|
|
# * optional
|
|
# * choice
|
|
# * oneOrMore
|
|
# * zeroOrMore
|
|
# * group
|
|
# * value
|
|
# * interleave
|
|
# * mixed
|
|
# * ref
|
|
# * grammar
|
|
# * start
|
|
# * define
|
|
#
|
|
# Not implemented:
|
|
# * data
|
|
# * param
|
|
# * include
|
|
# * externalRef
|
|
# * notAllowed
|
|
# * anyName
|
|
# * nsName
|
|
# * except
|
|
# * name
|
|
class RelaxNG
|
|
include Validator
|
|
|
|
INFINITY = 1.0 / 0.0
|
|
EMPTY = Event.new( nil )
|
|
TEXT = [:start_element, "text"]
|
|
attr_accessor :current
|
|
attr_accessor :count
|
|
attr_reader :references
|
|
|
|
# FIXME: Namespaces
|
|
def initialize source
|
|
parser = REXML::Parsers::BaseParser.new( source )
|
|
|
|
@count = 0
|
|
@references = {}
|
|
@root = @current = Sequence.new(self)
|
|
@root.previous = true
|
|
states = [ @current ]
|
|
begin
|
|
event = parser.pull
|
|
case event[0]
|
|
when :start_element
|
|
case event[1]
|
|
when "empty"
|
|
when "element", "attribute", "text", "value"
|
|
states[-1] << event
|
|
when "optional"
|
|
states << Optional.new( self )
|
|
states[-2] << states[-1]
|
|
when "choice"
|
|
states << Choice.new( self )
|
|
states[-2] << states[-1]
|
|
when "oneOrMore"
|
|
states << OneOrMore.new( self )
|
|
states[-2] << states[-1]
|
|
when "zeroOrMore"
|
|
states << ZeroOrMore.new( self )
|
|
states[-2] << states[-1]
|
|
when "group"
|
|
states << Sequence.new( self )
|
|
states[-2] << states[-1]
|
|
when "interleave"
|
|
states << Interleave.new( self )
|
|
states[-2] << states[-1]
|
|
when "mixed"
|
|
states << Interleave.new( self )
|
|
states[-2] << states[-1]
|
|
states[-1] << TEXT
|
|
when "define"
|
|
states << [ event[2]["name"] ]
|
|
when "ref"
|
|
states[-1] << Ref.new( event[2]["name"] )
|
|
when "anyName"
|
|
states << AnyName.new( self )
|
|
states[-2] << states[-1]
|
|
when "nsName"
|
|
when "except"
|
|
when "name"
|
|
when "data"
|
|
when "param"
|
|
when "include"
|
|
when "grammar"
|
|
when "start"
|
|
when "externalRef"
|
|
when "notAllowed"
|
|
end
|
|
when :end_element
|
|
case event[1]
|
|
when "element", "attribute"
|
|
states[-1] << event
|
|
when "zeroOrMore", "oneOrMore", "choice", "optional",
|
|
"interleave", "group", "mixed"
|
|
states.pop
|
|
when "define"
|
|
ref = states.pop
|
|
@references[ ref.shift ] = ref
|
|
#when "empty"
|
|
end
|
|
when :end_document
|
|
states[-1] << event
|
|
when :text
|
|
states[-1] << event
|
|
end
|
|
end while event[0] != :end_document
|
|
end
|
|
|
|
def receive event
|
|
validate( event )
|
|
end
|
|
end
|
|
|
|
class State
|
|
def initialize( context )
|
|
@previous = []
|
|
@events = []
|
|
@current = 0
|
|
@count = context.count += 1
|
|
@references = context.references
|
|
@value = false
|
|
end
|
|
|
|
def reset
|
|
return if @current == 0
|
|
@current = 0
|
|
@events.each {|s| s.reset if s.kind_of? State }
|
|
end
|
|
|
|
def previous=( previous )
|
|
@previous << previous
|
|
end
|
|
|
|
def next( event )
|
|
#print "In next with #{event.inspect}. "
|
|
#puts "Next (#@current) is #{@events[@current]}"
|
|
#p @previous
|
|
return @previous.pop.next( event ) if @events[@current].nil?
|
|
expand_ref_in( @events, @current ) if @events[@current].class == Ref
|
|
if ( @events[@current].kind_of? State )
|
|
@current += 1
|
|
@events[@current-1].previous = self
|
|
return @events[@current-1].next( event )
|
|
end
|
|
#puts "Current isn't a state"
|
|
if ( @events[@current].matches?(event) )
|
|
@current += 1
|
|
if @events[@current].nil?
|
|
#puts "#{inspect[0,5]} 1RETURNING #{@previous.inspect[0,5]}"
|
|
return @previous.pop
|
|
elsif @events[@current].kind_of? State
|
|
@current += 1
|
|
#puts "#{inspect[0,5]} 2RETURNING (#{@current-1}) #{@events[@current-1].inspect[0,5]}; on return, next is #{@events[@current]}"
|
|
@events[@current-1].previous = self
|
|
return @events[@current-1]
|
|
else
|
|
#puts "#{inspect[0,5]} RETURNING self w/ next(#@current) = #{@events[@current]}"
|
|
return self
|
|
end
|
|
else
|
|
return nil
|
|
end
|
|
end
|
|
|
|
def to_s
|
|
# Abbreviated:
|
|
self.class.name =~ /(?:::)(\w)\w+$/
|
|
# Full:
|
|
#self.class.name =~ /(?:::)(\w+)$/
|
|
"#$1.#@count"
|
|
end
|
|
|
|
def inspect
|
|
"< #{to_s} #{@events.collect{|e|
|
|
pre = e == @events[@current] ? '#' : ''
|
|
pre + e.inspect unless self == e
|
|
}.join(', ')} >"
|
|
end
|
|
|
|
def expected
|
|
return [@events[@current]]
|
|
end
|
|
|
|
def <<( event )
|
|
add_event_to_arry( @events, event )
|
|
end
|
|
|
|
|
|
protected
|
|
def expand_ref_in( arry, ind )
|
|
new_events = []
|
|
@references[ arry[ind].to_s ].each{ |evt|
|
|
add_event_to_arry(new_events,evt)
|
|
}
|
|
arry[ind,1] = new_events
|
|
end
|
|
|
|
def add_event_to_arry( arry, evt )
|
|
evt = generate_event( evt )
|
|
if evt.kind_of? String
|
|
arry[-1].event_arg = evt if arry[-1].kind_of? Event and @value
|
|
@value = false
|
|
else
|
|
arry << evt
|
|
end
|
|
end
|
|
|
|
def generate_event( event )
|
|
return event if event.kind_of? State or event.class == Ref
|
|
evt = nil
|
|
arg = nil
|
|
case event[0]
|
|
when :start_element
|
|
case event[1]
|
|
when "element"
|
|
evt = :start_element
|
|
arg = event[2]["name"]
|
|
when "attribute"
|
|
evt = :start_attribute
|
|
arg = event[2]["name"]
|
|
when "text"
|
|
evt = :text
|
|
when "value"
|
|
evt = :text
|
|
@value = true
|
|
end
|
|
when :text
|
|
return event[1]
|
|
when :end_document
|
|
return Event.new( event[0] )
|
|
else # then :end_element
|
|
case event[1]
|
|
when "element"
|
|
evt = :end_element
|
|
when "attribute"
|
|
evt = :end_attribute
|
|
end
|
|
end
|
|
return Event.new( evt, arg )
|
|
end
|
|
end
|
|
|
|
|
|
class Sequence < State
|
|
def matches?(event)
|
|
@events[@current].matches?( event )
|
|
end
|
|
end
|
|
|
|
|
|
class Optional < State
|
|
def next( event )
|
|
if @current == 0
|
|
rv = super
|
|
return rv if rv
|
|
@prior = @previous.pop
|
|
return @prior.next( event )
|
|
end
|
|
super
|
|
end
|
|
|
|
def matches?(event)
|
|
@events[@current].matches?(event) ||
|
|
(@current == 0 and @previous[-1].matches?(event))
|
|
end
|
|
|
|
def expected
|
|
return [ @prior.expected, @events[0] ].flatten if @current == 0
|
|
return [@events[@current]]
|
|
end
|
|
end
|
|
|
|
|
|
class ZeroOrMore < Optional
|
|
def next( event )
|
|
expand_ref_in( @events, @current ) if @events[@current].class == Ref
|
|
if ( @events[@current].matches?(event) )
|
|
@current += 1
|
|
if @events[@current].nil?
|
|
@current = 0
|
|
return self
|
|
elsif @events[@current].kind_of? State
|
|
@current += 1
|
|
@events[@current-1].previous = self
|
|
return @events[@current-1]
|
|
else
|
|
return self
|
|
end
|
|
else
|
|
@prior = @previous.pop
|
|
return @prior.next( event ) if @current == 0
|
|
return nil
|
|
end
|
|
end
|
|
|
|
def expected
|
|
return [ @prior.expected, @events[0] ].flatten if @current == 0
|
|
return [@events[@current]]
|
|
end
|
|
end
|
|
|
|
|
|
class OneOrMore < State
|
|
def initialize context
|
|
super
|
|
@ord = 0
|
|
end
|
|
|
|
def reset
|
|
super
|
|
@ord = 0
|
|
end
|
|
|
|
def next( event )
|
|
expand_ref_in( @events, @current ) if @events[@current].class == Ref
|
|
if ( @events[@current].matches?(event) )
|
|
@current += 1
|
|
@ord += 1
|
|
if @events[@current].nil?
|
|
@current = 0
|
|
return self
|
|
elsif @events[@current].kind_of? State
|
|
@current += 1
|
|
@events[@current-1].previous = self
|
|
return @events[@current-1]
|
|
else
|
|
return self
|
|
end
|
|
else
|
|
return @previous.pop.next( event ) if @current == 0 and @ord > 0
|
|
return nil
|
|
end
|
|
end
|
|
|
|
def matches?( event )
|
|
@events[@current].matches?(event) ||
|
|
(@current == 0 and @ord > 0 and @previous[-1].matches?(event))
|
|
end
|
|
|
|
def expected
|
|
if @current == 0 and @ord > 0
|
|
return [@previous[-1].expected, @events[0]].flatten
|
|
else
|
|
return [@events[@current]]
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
class Choice < State
|
|
def initialize context
|
|
super
|
|
@choices = []
|
|
end
|
|
|
|
def reset
|
|
super
|
|
@events = []
|
|
@choices.each { |c| c.each { |s| s.reset if s.kind_of? State } }
|
|
end
|
|
|
|
def <<( event )
|
|
add_event_to_arry( @choices, event )
|
|
end
|
|
|
|
def next( event )
|
|
# Make the choice if we haven't
|
|
if @events.size == 0
|
|
c = 0 ; max = @choices.size
|
|
while c < max
|
|
if @choices[c][0].class == Ref
|
|
expand_ref_in( @choices[c], 0 )
|
|
@choices += @choices[c]
|
|
@choices.delete( @choices[c] )
|
|
max -= 1
|
|
else
|
|
c += 1
|
|
end
|
|
end
|
|
@events = @choices.find { |evt| evt[0].matches? event }
|
|
# Remove the references
|
|
# Find the events
|
|
end
|
|
#puts "In next with #{event.inspect}."
|
|
#puts "events is #{@events.inspect}"
|
|
unless @events
|
|
@events = []
|
|
return nil
|
|
end
|
|
#puts "current = #@current"
|
|
super
|
|
end
|
|
|
|
def matches?( event )
|
|
return @events[@current].matches?( event ) if @events.size > 0
|
|
!@choices.find{|evt| evt[0].matches?(event)}.nil?
|
|
end
|
|
|
|
def expected
|
|
#puts "IN CHOICE EXPECTED"
|
|
#puts "EVENTS = #{@events.inspect}"
|
|
return [@events[@current]] if @events.size > 0
|
|
return @choices.collect do |x|
|
|
if x[0].kind_of? State
|
|
x[0].expected
|
|
else
|
|
x[0]
|
|
end
|
|
end.flatten
|
|
end
|
|
|
|
def inspect
|
|
"< #{to_s} #{@choices.collect{|e| e.collect{|f|f.to_s}.join(', ')}.join(' or ')} >"
|
|
end
|
|
|
|
protected
|
|
def add_event_to_arry( arry, evt )
|
|
if evt.kind_of? State or evt.class == Ref
|
|
arry << [evt]
|
|
elsif evt[0] == :text
|
|
if arry[-1] and
|
|
arry[-1][-1].kind_of?( Event ) and
|
|
arry[-1][-1].event_type == :text and @value
|
|
|
|
arry[-1][-1].event_arg = evt[1]
|
|
@value = false
|
|
end
|
|
else
|
|
arry << [] if evt[0] == :start_element
|
|
arry[-1] << generate_event( evt )
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
class Interleave < Choice
|
|
def initialize context
|
|
super
|
|
@choice = 0
|
|
end
|
|
|
|
def reset
|
|
@choice = 0
|
|
end
|
|
|
|
def next_current( event )
|
|
# Expand references
|
|
c = 0 ; max = @choices.size
|
|
while c < max
|
|
if @choices[c][0].class == Ref
|
|
expand_ref_in( @choices[c], 0 )
|
|
@choices += @choices[c]
|
|
@choices.delete( @choices[c] )
|
|
max -= 1
|
|
else
|
|
c += 1
|
|
end
|
|
end
|
|
@events = @choices[@choice..-1].find { |evt| evt[0].matches? event }
|
|
@current = 0
|
|
if @events
|
|
# reorder the choices
|
|
old = @choices[@choice]
|
|
idx = @choices.index( @events )
|
|
@choices[@choice] = @events
|
|
@choices[idx] = old
|
|
@choice += 1
|
|
end
|
|
|
|
#puts "In next with #{event.inspect}."
|
|
#puts "events is #{@events.inspect}"
|
|
@events = [] unless @events
|
|
end
|
|
|
|
|
|
def next( event )
|
|
# Find the next series
|
|
next_current(event) unless @events[@current]
|
|
return nil unless @events[@current]
|
|
|
|
expand_ref_in( @events, @current ) if @events[@current].class == Ref
|
|
#puts "In next with #{event.inspect}."
|
|
#puts "Next (#@current) is #{@events[@current]}"
|
|
if ( @events[@current].kind_of? State )
|
|
@current += 1
|
|
@events[@current-1].previous = self
|
|
return @events[@current-1].next( event )
|
|
end
|
|
#puts "Current isn't a state"
|
|
return @previous.pop.next( event ) if @events[@current].nil?
|
|
if ( @events[@current].matches?(event) )
|
|
@current += 1
|
|
if @events[@current].nil?
|
|
#puts "#{inspect[0,5]} 1RETURNING self" unless @choices[@choice].nil?
|
|
return self unless @choices[@choice].nil?
|
|
#puts "#{inspect[0,5]} 1RETURNING #{@previous[-1].inspect[0,5]}"
|
|
return @previous.pop
|
|
elsif @events[@current].kind_of? State
|
|
@current += 1
|
|
#puts "#{inspect[0,5]} 2RETURNING (#{@current-1}) #{@events[@current-1].inspect[0,5]}; on return, next is #{@events[@current]}"
|
|
@events[@current-1].previous = self
|
|
return @events[@current-1]
|
|
else
|
|
#puts "#{inspect[0,5]} RETURNING self w/ next(#@current) = #{@events[@current]}"
|
|
return self
|
|
end
|
|
else
|
|
return nil
|
|
end
|
|
end
|
|
|
|
def matches?( event )
|
|
return @events[@current].matches?( event ) if @events[@current]
|
|
!@choices[@choice..-1].find{|evt| evt[0].matches?(event)}.nil?
|
|
end
|
|
|
|
def expected
|
|
#puts "IN CHOICE EXPECTED"
|
|
#puts "EVENTS = #{@events.inspect}"
|
|
return [@events[@current]] if @events[@current]
|
|
return @choices[@choice..-1].collect do |x|
|
|
if x[0].kind_of? State
|
|
x[0].expected
|
|
else
|
|
x[0]
|
|
end
|
|
end.flatten
|
|
end
|
|
|
|
def inspect
|
|
"< #{to_s} #{@choices.collect{|e| e.collect{|f|f.to_s}.join(', ')}.join(' and ')} >"
|
|
end
|
|
end
|
|
|
|
class Ref
|
|
def initialize value
|
|
@value = value
|
|
end
|
|
def to_s
|
|
@value
|
|
end
|
|
def inspect
|
|
"{#{to_s}}"
|
|
end
|
|
end
|
|
end
|
|
end
|