diff --git a/lib/mpost.rb b/lib/mpost.rb
new file mode 100644
index 000000000..278a8a3bc
--- /dev/null
+++ b/lib/mpost.rb
@@ -0,0 +1,46 @@
+class Graph < Nanoc3::Filter
+    identifier :graph
+    @@tmpfic="/tmp/graphtemp.mp"
+    def run(content, params={}) 
+        content.gsub(%r{<mpost( title="([^"]*)")?>(.+?)</mpost>}m) do |full|
+            # FileUtils.rm(@@tmpfic)
+            title=$2
+            str=$3
+            filename=title.gsub(/[^a-zA-Z0-9_]/,"_")
+            File.open(@@tmpfic,'w') do |f|
+             f.write %{
+             color base03 :=(0.0               ,0.168627450980392,0.211764705882353);
+             color base02 :=(0.0274509803921569,0.211764705882353,0.258823529411765);
+             color base01 :=(0.345098039215686 ,0.431372549019608,0.458823529411765);
+             color base00 :=(0.396078431372549 ,0.482352941176471,0.513725490196078);
+             color base0  :=(0.513725490196078 ,0.580392156862745,0.588235294117647);
+             color base1  :=(0.576470588235294 ,0.631372549019608,0.631372549019608);
+             color base2  :=(0.933333333333333 ,0.909803921568627,0.835294117647059);
+             color base3  :=(0.992156862745098 ,0.964705882352941,0.890196078431372);
+             color yellow :=(0.709803921568627 ,0.537254901960784,0.0);
+             color orange :=(0.796078431372549 ,0.294117647058824,0.0862745098039216);
+             color red    :=(0.862745098039216 ,0.196078431372549,0.184313725490196);
+             color magenta:=(0.827450980392157 ,0.211764705882353,0.509803921568627);
+             color violet :=(0.423529411764706 ,0.443137254901961,0.768627450980392);
+             color blue   :=(0.149019607843137 ,0.545098039215686,0.823529411764706);
+             color cyan   :=(0.164705882352941 ,0.631372549019608,0.596078431372549);
+             color green  :=(0.52156862745098  ,0.6              ,0.0);
+
+             beginfig(1)
+             }
+             f.write str
+             f.write %{\nendfig;\nend\n}
+            end
+            FileUtils.mkdir_p('output'+@item.path+'graph')
+            webpath=@item.path + 'graph/' + filename + '.png'
+            path='output'+webpath
+            if str.match(/pos=/)
+                prog="neato"
+            else
+                prog="dot"
+            end
+            system("cd /tmp && mpost graphtemp.mp && convert -density 150 graphtemp.1 #{path}")
+            %{<figure><img alt="#{title}" src="#{webpath}"/><figcaption>#{title}</figcaption></figure>}
+        end
+    end
+end