Implement nested lists

lib/notare/xml/document_xml.rb

@@ -69,7 +69,7 @@ module Notare
         xml["w"].p do
           xml["w"].pPr do
             xml["w"].numPr do
-              xml["w"].ilvl("w:val" => "0")
+              xml["w"].ilvl("w:val" => item.level.to_s)
               xml["w"].numId("w:val" => item.num_id.to_s)
             end
           end

lib/notare/xml/numbering.rb

@@ -4,6 +4,8 @@ module Notare
   module Xml
     class Numbering
       NAMESPACE = "http://schemas.openxmlformats.org/wordprocessingml/2006/main"
+      BULLET_CHARS = ["•", "○", "■"].freeze
+      NUMBER_FORMATS = %w[decimal lowerLetter lowerRoman].freeze
 
       def initialize(lists)
         @lists = lists
@@ -28,13 +30,16 @@ module Notare
 
       def render_abstract_num(xml, list)
         xml["w"].abstractNum("w:abstractNumId" => list.num_id.to_s) do
-          xml["w"].lvl("w:ilvl" => "0") do
-            xml["w"].start("w:val" => "1")
-            xml["w"].numFmt("w:val" => num_format(list.type))
-            xml["w"].lvlText("w:val" => lvl_text(list.type))
-            xml["w"].lvlJc("w:val" => "left")
-            xml["w"].pPr do
-              xml["w"].ind("w:left" => "720", "w:hanging" => "360")
+          9.times do |level|
+            xml["w"].lvl("w:ilvl" => level.to_s) do
+              xml["w"].start("w:val" => "1")
+              xml["w"].numFmt("w:val" => num_format_for_level(list.type, level))
+              xml["w"].lvlText("w:val" => lvl_text_for_level(list.type, level))
+              xml["w"].lvlJc("w:val" => "left")
+              xml["w"].pPr do
+                left = 720 * (level + 1)
+                xml["w"].ind("w:left" => left.to_s, "w:hanging" => "360")
+              end
             end
           end
         end
@@ -46,12 +51,20 @@ module Notare
         end
       end
 
-      def num_format(type)
-        type == :bullet ? "bullet" : "decimal"
+      def num_format_for_level(type, level)
+        if type == :bullet
+          "bullet"
+        else
+          NUMBER_FORMATS[level % NUMBER_FORMATS.length]
+        end
       end
 
-      def lvl_text(type)
-        type == :bullet ? "•" : "%1."
+      def lvl_text_for_level(type, level)
+        if type == :bullet
+          BULLET_CHARS[level % BULLET_CHARS.length]
+        else
+          "%#{level + 1}."
+        end
       end
     end
   end