diff options
author | mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-10-01 13:46:53 +0000 |
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committer | mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-10-01 13:46:53 +0000 |
commit | 46321a9a313d934d23949ccecaa358c1761fd93c (patch) | |
tree | 83769e97e39f1fd0e5ca45e821082b6b843578a7 /lib/rexml/parsers/sax2parser.rb | |
parent | 952385b71267a843f8e71d0573f5b2fcf5709787 (diff) | |
download | ruby-46321a9a313d934d23949ccecaa358c1761fd93c.tar.gz |
* lib/xmlrpc, lib/rexml, test/ruby/test_array.rb,
test/ruby/test_unicode_escape.rb, test/scanf/test_scanf.rb,
test/rss/rss-assertions.rb: fix indentation to remove warning.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19657 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/rexml/parsers/sax2parser.rb')
-rw-r--r-- | lib/rexml/parsers/sax2parser.rb | 390 |
1 files changed, 195 insertions, 195 deletions
diff --git a/lib/rexml/parsers/sax2parser.rb b/lib/rexml/parsers/sax2parser.rb index cafc39375d..72131401c3 100644 --- a/lib/rexml/parsers/sax2parser.rb +++ b/lib/rexml/parsers/sax2parser.rb @@ -4,158 +4,158 @@ require 'rexml/namespace' require 'rexml/text' module REXML - module Parsers + module Parsers # SAX2Parser - class SAX2Parser - def initialize source - @parser = BaseParser.new(source) - @listeners = [] - @procs = [] - @namespace_stack = [] - @has_listeners = false - @tag_stack = [] + class SAX2Parser + def initialize source + @parser = BaseParser.new(source) + @listeners = [] + @procs = [] + @namespace_stack = [] + @has_listeners = false + @tag_stack = [] @entities = {} - end + end def source @parser.source end - + def add_listener( listener ) @parser.add_listener( listener ) end - # Listen arguments: - # - # Symbol, Array, Block - # Listen to Symbol events on Array elements - # Symbol, Block - # Listen to Symbol events - # Array, Listener - # Listen to all events on Array elements - # Array, Block - # Listen to :start_element events on Array elements - # Listener - # Listen to All events - # - # Symbol can be one of: :start_element, :end_element, - # :start_prefix_mapping, :end_prefix_mapping, :characters, - # :processing_instruction, :doctype, :attlistdecl, :elementdecl, - # :entitydecl, :notationdecl, :cdata, :xmldecl, :comment + # Listen arguments: + # + # Symbol, Array, Block + # Listen to Symbol events on Array elements + # Symbol, Block + # Listen to Symbol events + # Array, Listener + # Listen to all events on Array elements + # Array, Block + # Listen to :start_element events on Array elements + # Listener + # Listen to All events + # + # Symbol can be one of: :start_element, :end_element, + # :start_prefix_mapping, :end_prefix_mapping, :characters, + # :processing_instruction, :doctype, :attlistdecl, :elementdecl, + # :entitydecl, :notationdecl, :cdata, :xmldecl, :comment # # There is an additional symbol that can be listened for: :progress. # This will be called for every event generated, passing in the current # stream position. - # - # Array contains regular expressions or strings which will be matched - # against fully qualified element names. - # - # Listener must implement the methods in SAX2Listener - # - # Block will be passed the same arguments as a SAX2Listener method would - # be, where the method name is the same as the matched Symbol. - # See the SAX2Listener for more information. - def listen( *args, &blok ) - if args[0].kind_of? Symbol - if args.size == 2 - args[1].each { |match| @procs << [args[0], match, blok] } - else - add( [args[0], nil, blok] ) - end - elsif args[0].kind_of? Array - if args.size == 2 - args[0].each { |match| add( [nil, match, args[1]] ) } - else - args[0].each { |match| add( [ :start_element, match, blok ] ) } - end - else - add([nil, nil, args[0]]) - end - end - - def deafen( listener=nil, &blok ) - if listener - @listeners.delete_if {|item| item[-1] == listener } - @has_listeners = false if @listeners.size == 0 - else - @procs.delete_if {|item| item[-1] == blok } - end - end - - def parse - @procs.each { |sym,match,block| block.call if sym == :start_document } - @listeners.each { |sym,match,block| - block.start_document if sym == :start_document or sym.nil? - } - root = context = [] - while true - event = @parser.pull - case event[0] - when :end_document - handle( :end_document ) - break + # + # Array contains regular expressions or strings which will be matched + # against fully qualified element names. + # + # Listener must implement the methods in SAX2Listener + # + # Block will be passed the same arguments as a SAX2Listener method would + # be, where the method name is the same as the matched Symbol. + # See the SAX2Listener for more information. + def listen( *args, &blok ) + if args[0].kind_of? Symbol + if args.size == 2 + args[1].each { |match| @procs << [args[0], match, blok] } + else + add( [args[0], nil, blok] ) + end + elsif args[0].kind_of? Array + if args.size == 2 + args[0].each { |match| add( [nil, match, args[1]] ) } + else + args[0].each { |match| add( [ :start_element, match, blok ] ) } + end + else + add([nil, nil, args[0]]) + end + end + + def deafen( listener=nil, &blok ) + if listener + @listeners.delete_if {|item| item[-1] == listener } + @has_listeners = false if @listeners.size == 0 + else + @procs.delete_if {|item| item[-1] == blok } + end + end + + def parse + @procs.each { |sym,match,block| block.call if sym == :start_document } + @listeners.each { |sym,match,block| + block.start_document if sym == :start_document or sym.nil? + } + root = context = [] + while true + event = @parser.pull + case event[0] + when :end_document + handle( :end_document ) + break when :start_doctype handle( :doctype, *event[1..-1]) - when :end_doctype - context = context[1] - when :start_element - @tag_stack.push(event[1]) - # find the observers for namespaces - procs = get_procs( :start_prefix_mapping, event[1] ) - listeners = get_listeners( :start_prefix_mapping, event[1] ) - if procs or listeners - # break out the namespace declarations - # The attributes live in event[2] - event[2].each {|n, v| event[2][n] = @parser.normalize(v)} - nsdecl = event[2].find_all { |n, value| n =~ /^xmlns(:|$)/ } - nsdecl.collect! { |n, value| [ n[6..-1], value ] } - @namespace_stack.push({}) - nsdecl.each do |n,v| - @namespace_stack[-1][n] = v - # notify observers of namespaces - procs.each { |ob| ob.call( n, v ) } if procs - listeners.each { |ob| ob.start_prefix_mapping(n, v) } if listeners - end - end - event[1] =~ Namespace::NAMESPLIT - prefix = $1 - local = $2 - uri = get_namespace(prefix) - # find the observers for start_element - procs = get_procs( :start_element, event[1] ) - listeners = get_listeners( :start_element, event[1] ) - # notify observers - procs.each { |ob| ob.call( uri, local, event[1], event[2] ) } if procs - listeners.each { |ob| - ob.start_element( uri, local, event[1], event[2] ) - } if listeners - when :end_element - @tag_stack.pop - event[1] =~ Namespace::NAMESPLIT - prefix = $1 - local = $2 - uri = get_namespace(prefix) - # find the observers for start_element - procs = get_procs( :end_element, event[1] ) - listeners = get_listeners( :end_element, event[1] ) - # notify observers - procs.each { |ob| ob.call( uri, local, event[1] ) } if procs - listeners.each { |ob| - ob.end_element( uri, local, event[1] ) - } if listeners + when :end_doctype + context = context[1] + when :start_element + @tag_stack.push(event[1]) + # find the observers for namespaces + procs = get_procs( :start_prefix_mapping, event[1] ) + listeners = get_listeners( :start_prefix_mapping, event[1] ) + if procs or listeners + # break out the namespace declarations + # The attributes live in event[2] + event[2].each {|n, v| event[2][n] = @parser.normalize(v)} + nsdecl = event[2].find_all { |n, value| n =~ /^xmlns(:|$)/ } + nsdecl.collect! { |n, value| [ n[6..-1], value ] } + @namespace_stack.push({}) + nsdecl.each do |n,v| + @namespace_stack[-1][n] = v + # notify observers of namespaces + procs.each { |ob| ob.call( n, v ) } if procs + listeners.each { |ob| ob.start_prefix_mapping(n, v) } if listeners + end + end + event[1] =~ Namespace::NAMESPLIT + prefix = $1 + local = $2 + uri = get_namespace(prefix) + # find the observers for start_element + procs = get_procs( :start_element, event[1] ) + listeners = get_listeners( :start_element, event[1] ) + # notify observers + procs.each { |ob| ob.call( uri, local, event[1], event[2] ) } if procs + listeners.each { |ob| + ob.start_element( uri, local, event[1], event[2] ) + } if listeners + when :end_element + @tag_stack.pop + event[1] =~ Namespace::NAMESPLIT + prefix = $1 + local = $2 + uri = get_namespace(prefix) + # find the observers for start_element + procs = get_procs( :end_element, event[1] ) + listeners = get_listeners( :end_element, event[1] ) + # notify observers + procs.each { |ob| ob.call( uri, local, event[1] ) } if procs + listeners.each { |ob| + ob.end_element( uri, local, event[1] ) + } if listeners - namespace_mapping = @namespace_stack.pop - # find the observers for namespaces - procs = get_procs( :end_prefix_mapping, event[1] ) - listeners = get_listeners( :end_prefix_mapping, event[1] ) - if procs or listeners - namespace_mapping.each do |ns_prefix, ns_uri| - # notify observers of namespaces - procs.each { |ob| ob.call( ns_prefix ) } if procs - listeners.each { |ob| ob.end_prefix_mapping(ns_prefix) } if listeners - end - end - when :text + namespace_mapping = @namespace_stack.pop + # find the observers for namespaces + procs = get_procs( :end_prefix_mapping, event[1] ) + listeners = get_listeners( :end_prefix_mapping, event[1] ) + if procs or listeners + namespace_mapping.each do |ns_prefix, ns_uri| + # notify observers of namespaces + procs.each { |ob| ob.call( ns_prefix ) } if procs + listeners.each { |ob| ob.end_prefix_mapping(ns_prefix) } if listeners + end + end + when :text #normalized = @parser.normalize( event[1] ) #handle( :characters, normalized ) copy = event[1].clone @@ -177,71 +177,71 @@ module REXML handle( :characters, copy ) when :entitydecl @entities[ event[1] ] = event[2] if event.size == 3 - handle( *event ) - when :processing_instruction, :comment, :attlistdecl, - :elementdecl, :cdata, :notationdecl, :xmldecl - handle( *event ) - end + handle( *event ) + when :processing_instruction, :comment, :attlistdecl, + :elementdecl, :cdata, :notationdecl, :xmldecl + handle( *event ) + end handle( :progress, @parser.position ) - end - end + end + end - private - def handle( symbol, *arguments ) - tag = @tag_stack[-1] - procs = get_procs( symbol, tag ) - listeners = get_listeners( symbol, tag ) - # notify observers - procs.each { |ob| ob.call( *arguments ) } if procs - listeners.each { |l| - l.send( symbol.to_s, *arguments ) - } if listeners - end + private + def handle( symbol, *arguments ) + tag = @tag_stack[-1] + procs = get_procs( symbol, tag ) + listeners = get_listeners( symbol, tag ) + # notify observers + procs.each { |ob| ob.call( *arguments ) } if procs + listeners.each { |l| + l.send( symbol.to_s, *arguments ) + } if listeners + end - # The following methods are duplicates, but it is faster than using - # a helper - def get_procs( symbol, name ) - return nil if @procs.size == 0 - @procs.find_all do |sym, match, block| + # The following methods are duplicates, but it is faster than using + # a helper + def get_procs( symbol, name ) + return nil if @procs.size == 0 + @procs.find_all do |sym, match, block| #puts sym.inspect+"=="+symbol.inspect+ "\t"+match.inspect+"=="+name.inspect+ "\t"+( (sym.nil? or symbol == sym) and ((name.nil? and match.nil?) or match.nil? or ( (name == match) or (match.kind_of? Regexp and name =~ match)))).to_s - ( - (sym.nil? or symbol == sym) and - ((name.nil? and match.nil?) or match.nil? or ( - (name == match) or - (match.kind_of? Regexp and name =~ match) - ) - ) - ) - end.collect{|x| x[-1]} - end - def get_listeners( symbol, name ) - return nil if @listeners.size == 0 - @listeners.find_all do |sym, match, block| - ( - (sym.nil? or symbol == sym) and - ((name.nil? and match.nil?) or match.nil? or ( - (name == match) or - (match.kind_of? Regexp and name =~ match) - ) - ) - ) - end.collect{|x| x[-1]} - end + ( + (sym.nil? or symbol == sym) and + ((name.nil? and match.nil?) or match.nil? or ( + (name == match) or + (match.kind_of? Regexp and name =~ match) + ) + ) + ) + end.collect{|x| x[-1]} + end + def get_listeners( symbol, name ) + return nil if @listeners.size == 0 + @listeners.find_all do |sym, match, block| + ( + (sym.nil? or symbol == sym) and + ((name.nil? and match.nil?) or match.nil? or ( + (name == match) or + (match.kind_of? Regexp and name =~ match) + ) + ) + ) + end.collect{|x| x[-1]} + end - def add( pair ) - if pair[-1].respond_to? :call - @procs << pair unless @procs.include? pair - else - @listeners << pair unless @listeners.include? pair - @has_listeners = true - end - end + def add( pair ) + if pair[-1].respond_to? :call + @procs << pair unless @procs.include? pair + else + @listeners << pair unless @listeners.include? pair + @has_listeners = true + end + end - def get_namespace( prefix ) + def get_namespace( prefix ) uris = (@namespace_stack.find_all { |ns| not ns[prefix].nil? }) || - (@namespace_stack.find { |ns| not ns[nil].nil? }) - uris[-1][prefix] unless uris.nil? or 0 == uris.size - end - end - end + (@namespace_stack.find { |ns| not ns[nil].nil? }) + uris[-1][prefix] unless uris.nil? or 0 == uris.size + end + end + end end |