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authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/lib/rss/xmlscanner.rb
Fresh start
Diffstat (limited to 'jni/ruby/lib/rss/xmlscanner.rb')
-rw-r--r--jni/ruby/lib/rss/xmlscanner.rb121
1 files changed, 121 insertions, 0 deletions
diff --git a/jni/ruby/lib/rss/xmlscanner.rb b/jni/ruby/lib/rss/xmlscanner.rb
new file mode 100644
index 0000000..1cdf81c
--- /dev/null
+++ b/jni/ruby/lib/rss/xmlscanner.rb
@@ -0,0 +1,121 @@
+require 'xmlscan/scanner'
+require 'stringio'
+
+module RSS
+
+ class XMLScanParser < BaseParser
+
+ class << self
+ def listener
+ XMLScanListener
+ end
+ end
+
+ private
+ def _parse
+ begin
+ if @rss.is_a?(String)
+ input = StringIO.new(@rss)
+ else
+ input = @rss
+ end
+ scanner = XMLScan::XMLScanner.new(@listener)
+ scanner.parse(input)
+ rescue XMLScan::Error => e
+ lineno = e.lineno || scanner.lineno || input.lineno
+ raise NotWellFormedError.new(lineno){e.message}
+ end
+ end
+
+ end
+
+ class XMLScanListener < BaseListener
+
+ include XMLScan::Visitor
+ include ListenerMixin
+
+ ENTITIES = {
+ 'lt' => '<',
+ 'gt' => '>',
+ 'amp' => '&',
+ 'quot' => '"',
+ 'apos' => '\''
+ }
+
+ def on_xmldecl_version(str)
+ @version = str
+ end
+
+ def on_xmldecl_encoding(str)
+ @encoding = str
+ end
+
+ def on_xmldecl_standalone(str)
+ @standalone = str
+ end
+
+ def on_xmldecl_end
+ xmldecl(@version, @encoding, @standalone == "yes")
+ end
+
+ alias_method(:on_pi, :instruction)
+ alias_method(:on_chardata, :text)
+ alias_method(:on_cdata, :text)
+
+ def on_etag(name)
+ tag_end(name)
+ end
+
+ def on_entityref(ref)
+ text(entity(ref))
+ end
+
+ def on_charref(code)
+ text([code].pack('U'))
+ end
+
+ alias_method(:on_charref_hex, :on_charref)
+
+ def on_stag(name)
+ @attrs = {}
+ end
+
+ def on_attribute(name)
+ @attrs[name] = @current_attr = ''
+ end
+
+ def on_attr_value(str)
+ @current_attr << str
+ end
+
+ def on_attr_entityref(ref)
+ @current_attr << entity(ref)
+ end
+
+ def on_attr_charref(code)
+ @current_attr << [code].pack('U')
+ end
+
+ alias_method(:on_attr_charref_hex, :on_attr_charref)
+
+ def on_stag_end(name)
+ tag_start(name, @attrs)
+ end
+
+ def on_stag_end_empty(name)
+ tag_start(name, @attrs)
+ tag_end(name)
+ end
+
+ private
+ def entity(ref)
+ ent = ENTITIES[ref]
+ if ent
+ ent
+ else
+ wellformed_error("undefined entity: #{ref}")
+ end
+ end
+ end
+
+end