instiki/vendor/plugins/rexml/lib/rexml/formatters/transitive.rb
Jacques Distler 38ae064b8a Bundle Latest REXML
Sam Ruby has been doing a bang-up job fixing the bugs in REXML.
Who knows when these improvements will trickle down to vendor distributions of Ruby.
In the meantime, let's bundle the latest version of REXML with Instiki.
We check the version number of the bundled REXML against that of the System REXML, and use whichever is later.
2008-01-11 23:53:29 -06:00

56 lines
1.7 KiB
Ruby

require 'rexml/formatters/pretty'
module REXML
module Formatters
# The Transitive formatter writes an XML document that parses to an
# identical document as the source document. This means that no extra
# whitespace nodes are inserted, and whitespace within text nodes is
# preserved. Within these constraints, the document is pretty-printed,
# with whitespace inserted into the metadata to introduce formatting.
#
# Note that this is only useful if the original XML is not already
# formatted. Since this formatter does not alter whitespace nodes, the
# results of formatting already formatted XML will be odd.
class Transitive < Default
def initialize( indentation=2 )
@indentation = indentation
@level = 0
end
protected
def write_element( node, output )
output << "<#{node.expanded_name}"
node.attributes.each_attribute do |attr|
output << " "
attr.write( output )
end unless node.attributes.empty?
output << "\n"
output << ' '*@level
if node.children.empty?
output << "/"
else
output << ">"
# If compact and all children are text, and if the formatted output
# is less than the specified width, then try to print everything on
# one line
skip = false
@level += @indentation
node.children.each { |child|
write( child, output )
}
@level -= @indentation
output << "</#{node.expanded_name}"
output << "\n"
output << ' '*@level
end
output << ">"
end
def write_text( node, output )
output << node.to_s()
end
end
end
end