diff options
Diffstat (limited to 'ruby_1_8_6/lib/rexml/formatters/pretty.rb')
| -rw-r--r-- | ruby_1_8_6/lib/rexml/formatters/pretty.rb | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/ruby_1_8_6/lib/rexml/formatters/pretty.rb b/ruby_1_8_6/lib/rexml/formatters/pretty.rb deleted file mode 100644 index 22b6d857cd..0000000000 --- a/ruby_1_8_6/lib/rexml/formatters/pretty.rb +++ /dev/null @@ -1,137 +0,0 @@ -require 'rexml/formatters/default' - -module REXML - module Formatters - # Pretty-prints an XML document. This destroys whitespace in text nodes - # and will insert carriage returns and indentations. - # - # TODO: Add an option to print attributes on new lines - class Pretty < Default - - # If compact is set to true, then the formatter will attempt to use as - # little space as possible - attr_accessor :compact - # The width of a page. Used for formatting text - attr_accessor :width - - # Create a new pretty printer. - # - # output:: - # An object implementing '<<(String)', to which the output will be written. - # indentation:: - # An integer greater than 0. The indentation of each level will be - # this number of spaces. If this is < 1, the behavior of this object - # is undefined. Defaults to 2. - # ie_hack:: - # If true, the printer will insert whitespace before closing empty - # tags, thereby allowing Internet Explorer's feeble XML parser to - # function. Defaults to false. - def initialize( indentation=2, ie_hack=false ) - @indentation = indentation - @level = 0 - @ie_hack = ie_hack - @width = 80 - end - - protected - def write_element(node, output) - output << ' '*@level - output << "<#{node.expanded_name}" - - node.attributes.each_attribute do |attr| - output << " " - attr.write( output ) - end unless node.attributes.empty? - - if node.children.empty? - if @ie_hack - output << " " - end - 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 - if compact - if node.children.inject(true) {|s,c| s & c.kind_of?(Text)} - string = "" - old_level = @level - @level = 0 - node.children.each { |child| write( child, string ) } - @level = old_level - if string.length < @width - output << string - skip = true - end - end - end - unless skip - output << "\n" - @level += @indentation - node.children.each { |child| - next if child.kind_of?(Text) and child.to_s.strip.length == 0 - write( child, output ) - output << "\n" - } - @level -= @indentation - output << ' '*@level - end - output << "</#{node.expanded_name}" - end - output << ">" - end - - def write_text( node, output ) - s = node.to_s() - s.gsub!(/\s/,' ') - s.squeeze!(" ") - s = wrap(s, 80-@level) - s = indent_text(s, @level, " ", true) - output << (' '*@level + s) - end - - def write_comment( node, output) - output << ' ' * @level - super - end - - def write_cdata( node, output) - output << ' ' * @level - super - end - - def write_document( node, output ) - # Ok, this is a bit odd. All XML documents have an XML declaration, - # but it may not write itself if the user didn't specifically add it, - # either through the API or in the input document. If it doesn't write - # itself, then we don't need a carriage return... which makes this - # logic more complex. - node.children.each { |child| - next if child == node.children[-1] and child.instance_of?(Text) - unless child == node.children[0] or child.instance_of?(Text) or - (child == node.children[1] and !node.children[0].writethis) - output << "\n" - end - write( child, output ) - } - end - - private - def indent_text(string, level=1, style="\t", indentfirstline=true) - return string if level < 0 - string.gsub(/\n/, "\n#{style*level}") - end - - def wrap(string, width) - # Recursivly wrap string at width. - return string if string.length <= width - place = string.rindex(' ', width) # Position in string with last ' ' before cutoff - return string[0,place] + "\n" + wrap(string[place+1..-1], width) - end - - end - end -end - |